mirror of
https://github.com/NawfalMotii79/PLFM_RADAR.git
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sim(antenna): add OpenEMS aperture-coupled patch model for Stack_Hybrid v2
Re-simulation infrastructure for the new 4-layer aperture-coupled antenna
stackup (Stack_Hybrid.png, committed 1de2296). Renders the full multilayer
geometry (L1 patch / L2 slot ground / L3 microstrip feed / L4 backplane)
on the actual substrate stack (RO4350B 0.508 mm + RO4450F 1.2 mm + RO4350B
0.11 mm) and runs FDTD via openEMS to characterize S11 vs frequency.
Geometry interpolated from existing 2-layer Gerber:
patch W from Gerber (7.854 mm, set by εr only)
patch L re-tunable for new substrate (env var PATCH_L_MM, default 7.25 mm)
slot/feed/stub fully parameterized via env vars
Run modes:
PROFILE=sanity : single run, λ/18 mesh, ~30 s
PROFILE=balanced : single run, λ/25 mesh, ~60 s
PROFILE=sweep : 5×5 grid over slot_L × stub_L, ~25 min
Env overrides for parametric exploration:
PATCH_W_MM, PATCH_L_MM, SLOT_L_MM, SLOT_W_MM, STUB_L_MM, SLOT_Y_OFF_MM
Setup: openEMS Python bindings built from source against /opt/openEMS for
Python 3.12 in radar_venv; run with
DYLD_LIBRARY_PATH=~/opt/openEMS/lib ~/radar_venv/bin/python
under cwd != openEMS-Project/openEMS/python (avoids CSXCAD shadow import).
Status: simulation infrastructure verified end-to-end; patch resonates at
10.4 GHz with W=9.0 / L=5.5–6.0 mm. Full 50 Ω impedance match not yet
converged — the L4 backplane (non-standard for aperture-coupled) reduces
slot coupling vs textbook formulas; needs proper EM optimizer (scipy
wrapping or CST/HFSS handoff) to fully tune. ~150 MHz baseline BW
predicted from substrate physics; 30/40 MHz chirp target comfortably
under any plausible match outcome.
This commit is contained in:
Jason
418
5_Simulations/Antenna/aperture_coupled_aeris10_v2.py
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418
5_Simulations/Antenna/aperture_coupled_aeris10_v2.py
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#!/usr/bin/env python3
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# aperture_coupled_aeris10_v2.py
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#
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# Single-element aperture-coupled patch antenna characterization for the
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# UPDATED Stack_Hybrid stackup (committed 1de2296, 2026-04-29).
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#
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# Patch geometry is INTERPOLATED from the as-built 2-layer Gerber
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# (Antenna_16_8.top, March 2025) and rescaled for the new 0.508 mm RO4350B
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# substrate via the εr_eff + ΔL closed-form shift:
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# L_new ≈ L_old × ((λ_eff_new/2 − 2·ΔL_new) / (λ_eff_old/2 − 2·ΔL_old))
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# L_old (Gerber) = 7.356 mm on 0.102 mm RO4350B → εr_eff ≈ 3.39
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# L_new (predict) = 7.250 mm on 0.508 mm RO4350B → εr_eff ≈ 3.17
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# W stays 7.854 mm (only depends on εr, not h)
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#
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# Stackup (Stack_Hybrid.png, ANTENNA column):
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# L1 Cu 0.035 mm ← patch
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# -- RO4350B 0.508 mm εr=3.48 (top patch substrate)
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# L2 Cu 0.035 mm ← inner ground + coupling slot
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# -- RO4450F 1.2 mm εr=3.52 (bonding ply)
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# L3 Cu 0.035 mm ← microstrip feed line + λ_g/4 stub
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# -- RO4350B 0.11 mm εr=3.48 (feed substrate)
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# L4 Cu 0.035 mm ← bottom ground plane
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#
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# Run modes:
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# PROFILE=sanity : 1 run with current SLOT_L / STUB_L env vars
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# PROFILE=balanced : 1 run, finer mesh
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# PROFILE=sweep : 5×5 grid over slot_L × stub_L, picks best, reports
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#
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# Env overrides:
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# SLOT_L_MM (default 5.0) Slot length in y
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# STUB_L_MM (default 4.32) Stub past slot center
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# PATCH_L_MM (default 7.25) Patch length (re-tunable)
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#
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# Outputs in /tmp/aeris10_aperture_v2/:
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# single run : S11.png, S11_data.csv
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# sweep mode : sweep_results.csv, sweep_S11.png
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import os
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import sys
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import time
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import csv
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import numpy as np
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import matplotlib
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matplotlib.use("Agg")
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import matplotlib.pyplot as plt
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from openEMS import openEMS
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from openEMS.physical_constants import C0
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from CSXCAD import ContinuousStructure
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from CSXCAD.SmoothMeshLines import SmoothMeshLines
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# ============================================================================
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# PROFILES
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# ============================================================================
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PROFILE = os.environ.get("PROFILE", "sanity")
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profiles = {
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"sanity": {"mesh_lambda_div": 18, "n_timesteps": 50000, "end_dB": -30},
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"balanced": {"mesh_lambda_div": 25, "n_timesteps": 80000, "end_dB": -40},
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"sweep": {"mesh_lambda_div": 16, "n_timesteps": 40000, "end_dB": -25},
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}
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cfg = profiles[PROFILE if PROFILE != "sweep" else "sweep"]
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# ============================================================================
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# BAND
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# ============================================================================
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F0 = 10.5e9
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F_SPAN = 4.0e9
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F_START = F0 - F_SPAN/2
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F_STOP = F0 + F_SPAN/2
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# ============================================================================
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# STACKUP (mm) — from Stack_Hybrid.png ANTENNA column
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# ============================================================================
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T_CU = 0.035
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H_PATCH_SUB = 0.508
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H_BOND = 1.2
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H_FEED_SUB = 0.11
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EPS_RO4350B = 3.48
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EPS_RO4450F = 3.52
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TAN_RO4350B = 0.0037
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TAN_RO4450F = 0.0040
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# Z layers (L4 bottom = 0)
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Z_L4 = 0.0
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Z_L3 = Z_L4 + T_CU + H_FEED_SUB
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Z_L2 = Z_L3 + T_CU + H_BOND
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Z_L1 = Z_L2 + T_CU + H_PATCH_SUB
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Z_TOP = Z_L1 + T_CU
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# ============================================================================
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# GEOMETRY (mm)
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# ============================================================================
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# Patch: from Gerber.top D10 = 0.30921 × 0.28961 in = 7.854 × 7.356 mm,
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# L rescaled −1.4% for the substrate-thickness shift (0.102 → 0.508 mm RO4350B).
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PATCH_W = float(os.environ.get("PATCH_W_MM", "7.854"))
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PATCH_L = float(os.environ.get("PATCH_L_MM", "7.25"))
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# Slot (under patch in L2). Length perpendicular to feed line direction.
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SLOT_L = float(os.environ.get("SLOT_L_MM", "5.0"))
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SLOT_W = float(os.environ.get("SLOT_W_MM", "0.4"))
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# Microstrip feed on L3, dominant ground = L4 (0.11 mm RO4350B). 50 Ω target.
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# Hammerstad: W ≈ 0.25 mm for 50 Ω on 0.11 mm RO4350B.
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FEED_W = 0.25
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FEED_STUB_L = float(os.environ.get("STUB_L_MM", "4.32")) # λ_g/4 starting
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# Need 4+ mm of pure-microstrip lead before L2 ground catches the line, so
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# MSLPort feed/measurement planes both sit in microstrip-only region (Z0=50).
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FEED_LEAD_L = 14.0 # length from board edge (port) to slot center
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# Substrate / ground extents (~λ/2 margin around patch)
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GND_X_MARGIN = 14.3
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GND_Y_MARGIN = 14.3
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GND_X_HALF = max(PATCH_W/2, SLOT_L/2) + GND_X_MARGIN
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GND_Y_HALF = max(PATCH_L/2, FEED_LEAD_L + FEED_STUB_L) + GND_Y_MARGIN
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# Air box (λ/2 above patch, λ/4 below)
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AIR_ABOVE = 14.3
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AIR_BELOW = 8.0
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AIR_X_HALF = GND_X_HALF + 8.0
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AIR_Y_HALF = GND_Y_HALF + 8.0
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OUT_DIR = "/tmp/aeris10_aperture_v2"
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os.makedirs(OUT_DIR, exist_ok=True)
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# ============================================================================
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# Build + run a single FDTD case, return (freq[], S11_dB[], Zin[], VSWR[])
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# ============================================================================
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def run_case(slot_l, stub_l, patch_l, sim_path, profile_cfg, label="", slot_w=None,
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slot_y_off=None, patch_w=None):
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if slot_w is None:
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slot_w = SLOT_W
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if slot_y_off is None:
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slot_y_off = float(os.environ.get("SLOT_Y_OFF_MM", "0.0"))
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if patch_w is None:
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patch_w = PATCH_W
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fdtd = openEMS(NrTS=profile_cfg["n_timesteps"],
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EndCriteria=10**(profile_cfg["end_dB"]/20.0))
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fdtd.SetGaussExcite(F0, F_SPAN/2.0)
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fdtd.SetBoundaryCond(["MUR"]*6)
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CSX = ContinuousStructure()
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fdtd.SetCSX(CSX)
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mesh = CSX.GetGrid()
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mesh.SetDeltaUnit(1e-3)
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# ---- materials ----
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eps0 = 8.854e-12
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patch_sub = CSX.AddMaterial("RO4350B_top",
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epsilon=EPS_RO4350B,
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kappa=2*np.pi*F0*EPS_RO4350B*eps0*TAN_RO4350B)
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bond_sub = CSX.AddMaterial("RO4450F_bond",
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epsilon=EPS_RO4450F,
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kappa=2*np.pi*F0*EPS_RO4450F*eps0*TAN_RO4450F)
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feed_sub = CSX.AddMaterial("RO4350B_feed",
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epsilon=EPS_RO4350B,
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kappa=2*np.pi*F0*EPS_RO4350B*eps0*TAN_RO4350B)
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copper = CSX.AddMetal("Copper")
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# ---- substrates ----
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patch_sub.AddBox([-GND_X_HALF, -GND_Y_HALF, Z_L2 + T_CU],
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[+GND_X_HALF, +GND_Y_HALF, Z_L1], priority=1)
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bond_sub.AddBox([-GND_X_HALF, -GND_Y_HALF, Z_L3 + T_CU],
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[+GND_X_HALF, +GND_Y_HALF, Z_L2], priority=1)
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feed_sub.AddBox([-GND_X_HALF, -GND_Y_HALF, Z_L4 + T_CU],
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[+GND_X_HALF, +GND_Y_HALF, Z_L3], priority=1)
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# ---- L1: patch ----
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copper.AddBox([-patch_w/2, -patch_l/2, Z_L1],
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[+patch_w/2, +patch_l/2, Z_L1 + T_CU], priority=10)
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# ---- L2: ground patch around slot only (NOT full plane) ----
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# Finite-extent inner ground centered around the slot. Lets the feed line
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# transition from microstrip (no L2 above) at the port → stripline-ish
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# (L2 above) near the slot. This kills the parallel-plate cavity that a
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# full-extent L2 plane would form between L2↔L4 around the lumped port.
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# L2 patch covers ~2·PATCH_L in y, full board width in x.
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L2_HALF_Y = PATCH_L # ground extends ±PATCH_L in y around slot at y=0
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# Above slot (y > +slot_w/2)
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copper.AddBox([-GND_X_HALF, +slot_w/2, Z_L2],
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[+GND_X_HALF, +L2_HALF_Y, Z_L2 + T_CU], priority=10)
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# Below slot (y < -slot_w/2)
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copper.AddBox([-GND_X_HALF, -L2_HALF_Y, Z_L2],
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[+GND_X_HALF, -slot_w/2, Z_L2 + T_CU], priority=10)
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# Left of slot (x < -slot_l/2, |y| <= slot_w/2)
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copper.AddBox([-GND_X_HALF, -slot_w/2, Z_L2],
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[-slot_l/2, +slot_w/2, Z_L2 + T_CU], priority=10)
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# Right of slot (x > +slot_l/2, |y| <= slot_w/2)
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copper.AddBox([+slot_l/2, -slot_w/2, Z_L2],
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[+GND_X_HALF, +slot_w/2, Z_L2 + T_CU], priority=10)
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# ---- L3: microstrip feed line — runs in y direction, ⟂ to slot ----
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feed_y_start = -FEED_LEAD_L # board edge (port location)
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feed_y_end = +stub_l # stub past slot center (slot at y=0)
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copper.AddBox([-FEED_W/2, feed_y_start, Z_L3],
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[+FEED_W/2, feed_y_end, Z_L3 + T_CU], priority=10)
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# ---- L4: full bottom ground ----
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copper.AddBox([-GND_X_HALF, -GND_Y_HALF, Z_L4],
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[+GND_X_HALF, +GND_Y_HALF, Z_L4 + T_CU], priority=10)
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# ---- mesh (must exist before MSLPort sees it) ----
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PORT_LEN = 2.0 # mm of trace allocated to the port region
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FEED_SHIFT_PORT = 0.4 # excitation point inside the port box
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MEAS_SHIFT_PORT = 1.6 # V/I measurement plane inside the port box
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lambda_min_mm = (C0 / F_STOP) * 1000.0
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res = lambda_min_mm / profile_cfg["mesh_lambda_div"]
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xlines = [-AIR_X_HALF, -GND_X_HALF, -PATCH_W/2, -slot_l/2, -FEED_W/2,
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0, +FEED_W/2, +slot_l/2, +PATCH_W/2, +GND_X_HALF, +AIR_X_HALF]
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# MSLPort requires ≥5 mesh lines in propagation direction inside the port
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# box (y = feed_y_start..feed_y_start+PORT_LEN). Force 6 explicit lines.
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port_y_lines = list(np.linspace(feed_y_start, feed_y_start + PORT_LEN, 6))
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ylines = [-AIR_Y_HALF, -GND_Y_HALF, -PATCH_L/2, -slot_w/2,
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0, +slot_w/2, +PATCH_L/2, feed_y_end, +GND_Y_HALF, +AIR_Y_HALF,
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-PATCH_L] + port_y_lines
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zlines = [Z_L4 - AIR_BELOW,
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Z_L4, Z_L4 + T_CU,
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Z_L3, Z_L3 + T_CU,
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Z_L2, Z_L2 + T_CU,
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Z_L1, Z_L1 + T_CU,
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Z_TOP + AIR_ABOVE]
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xlines = SmoothMeshLines(np.array(xlines), res)
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ylines = SmoothMeshLines(np.array(ylines), res)
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zlines = SmoothMeshLines(np.array(zlines), res)
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mesh.AddLine("x", xlines)
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mesh.AddLine("y", ylines)
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mesh.AddLine("z", zlines)
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n_cells = len(xlines) * len(ylines) * len(zlines)
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# ---- Microstrip-line port (after mesh is in place; checks line count) ----
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# The L2 inner ground was pulled back to y = -PATCH_L (= -7.25 mm), so
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# this port region (y = -8.0..-6.0 mm) sees ONLY L4 ground below → pure
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# microstrip. AddMSLPort excites the TEM mode cleanly without coupling
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# into the parallel-plate cavity that a full L2 plane would form.
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port = fdtd.AddMSLPort(1, copper,
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start=[-FEED_W/2, feed_y_start, Z_L4 + T_CU],
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stop= [+FEED_W/2, feed_y_start + PORT_LEN, Z_L3 + T_CU],
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prop_dir='y', exc_dir='z',
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excite=1.0,
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FeedShift=FEED_SHIFT_PORT,
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MeasPlaneShift=MEAS_SHIFT_PORT,
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Feed_R=50)
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# ---- run ----
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print(f"[case {label}] slot_L={slot_l:.2f}mm stub_L={stub_l:.2f}mm "
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f"patch_L={patch_l:.3f}mm cells={n_cells:,}")
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t0 = time.time()
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fdtd.Run(sim_path, verbose=0, cleanup=True)
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dt = time.time() - t0
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# ---- post-process ----
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freq = np.linspace(F_START, F_STOP, 401)
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port.CalcPort(sim_path, freq)
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s11 = port.uf_ref / port.uf_inc
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s11_dB = 20.0 * np.log10(np.abs(s11) + 1e-30)
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zin = port.uf_tot / port.if_tot
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vswr = (1 + np.abs(s11)) / (1 - np.abs(s11) + 1e-30)
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return freq, s11_dB, zin, vswr, dt
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def find_resonance(freq, s11_dB, zin=None):
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"""Return (f_res_Hz, s11_min_dB, f_lo, f_hi, bw_pct).
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Resonance point: where Im(Zin) crosses zero (true antenna resonance).
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Falls back to min(S11) if Zin not provided or no zero crossing found.
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"""
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f_res, s11_min = None, None
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if zin is not None:
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# Find Im(Zin) = 0 crossings inside the search band 9.0..11.5 GHz
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x = np.imag(zin)
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mask = (freq >= 9.0e9) & (freq <= 11.5e9)
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idx_band = np.where(mask)[0]
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if len(idx_band) > 1:
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xb = x[idx_band]
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# Find sign changes in xb
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sign_changes = np.where(np.diff(np.sign(xb)) != 0)[0]
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if len(sign_changes):
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# Linear interpolation to refine the crossing
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k = sign_changes[0]
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i0, i1 = idx_band[k], idx_band[k+1]
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# Linear interp where Im(Zin) = 0
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t = -x[i0] / (x[i1] - x[i0]) if x[i1] != x[i0] else 0
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f_res = freq[i0] + t * (freq[i1] - freq[i0])
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# S11 at f_res via interpolation
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s11_min = s11_dB[i0] + t * (s11_dB[i1] - s11_dB[i0])
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if f_res is None:
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imin = int(np.argmin(s11_dB))
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f_res = freq[imin]
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s11_min = float(s11_dB[imin])
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# walk outward to find -10 dB crossings around f_res
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below = s11_dB <= -10.0
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if not below.any():
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return f_res, s11_min, 0.0, 0.0, 0.0
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# find the -10 dB band containing or nearest to f_res
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i_f = int(np.argmin(np.abs(freq - f_res)))
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if not below[i_f]:
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return f_res, s11_min, 0.0, 0.0, 0.0
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lo = i_f
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while lo > 0 and below[lo-1]:
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lo -= 1
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hi = i_f
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while hi < len(below)-1 and below[hi+1]:
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hi += 1
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f_lo, f_hi = freq[lo], freq[hi]
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bw = f_hi - f_lo
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bw_pct = bw / f_res * 100.0
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return f_res, s11_min, f_lo, f_hi, bw_pct
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# ============================================================================
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# MAIN
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# ============================================================================
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if PROFILE == "sweep":
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# 5x5 grid
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slot_grid = [4.0, 5.0, 6.0, 7.0, 8.0]
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stub_grid = [3.0, 3.5, 4.0, 4.5, 5.0]
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patch_l = float(os.environ.get("PATCH_L_MM", "7.25"))
|
||||
rows = []
|
||||
print(f"[sweep] {len(slot_grid)}×{len(stub_grid)} = {len(slot_grid)*len(stub_grid)} cases")
|
||||
for i, sl in enumerate(slot_grid):
|
||||
for j, st in enumerate(stub_grid):
|
||||
label = f"{i*len(stub_grid)+j+1:02d}/{len(slot_grid)*len(stub_grid)}"
|
||||
sim_path = os.path.join(OUT_DIR, f"sweep_s{sl:.1f}_t{st:.1f}")
|
||||
try:
|
||||
freq, s11_dB, zin, vswr, dt = run_case(
|
||||
sl, st, patch_l, sim_path, cfg, label=label)
|
||||
f_res, s11_min, f_lo, f_hi, bw_pct = find_resonance(freq, s11_dB, zin)
|
||||
rows.append({
|
||||
"slot_L": sl, "stub_L": st, "patch_L": patch_l,
|
||||
"f_res_GHz": f_res/1e9, "s11_min_dB": s11_min,
|
||||
"f_lo_GHz": f_lo/1e9, "f_hi_GHz": f_hi/1e9,
|
||||
"bw_pct": bw_pct, "elapsed_s": dt,
|
||||
})
|
||||
print(f" [{label}] f_res={f_res/1e9:.2f}GHz S11={s11_min:.1f}dB "
|
||||
f"BW={bw_pct:.1f}% t={dt:.0f}s")
|
||||
except Exception as e:
|
||||
print(f" [{label}] FAILED: {e}")
|
||||
|
||||
# CSV
|
||||
with open(os.path.join(OUT_DIR, "sweep_results.csv"), "w", newline="") as f:
|
||||
if rows:
|
||||
w = csv.DictWriter(f, fieldnames=rows[0].keys())
|
||||
w.writeheader()
|
||||
for r in rows:
|
||||
w.writerow(r)
|
||||
|
||||
# Score = (closeness to 10.5 GHz) + (BW) + (S11 dip depth)
|
||||
def score(r):
|
||||
if r["bw_pct"] == 0:
|
||||
return -1e9
|
||||
f_off = abs(r["f_res_GHz"] - 10.5)
|
||||
return -10.0*f_off + r["bw_pct"] - 0.5*r["s11_min_dB"]
|
||||
rows.sort(key=score, reverse=True)
|
||||
print()
|
||||
print("=" * 78)
|
||||
print("Top 5 sweep results (best score first):")
|
||||
print(f" {'slot':>6} {'stub':>6} {'f_res':>8} {'S11':>7} {'BW':>7} {'lo–hi':>15}")
|
||||
for r in rows[:5]:
|
||||
print(f" {r['slot_L']:>6.2f} {r['stub_L']:>6.2f} "
|
||||
f"{r['f_res_GHz']:>6.2f}GHz {r['s11_min_dB']:>5.1f}dB "
|
||||
f"{r['bw_pct']:>5.2f}% {r['f_lo_GHz']:.2f}–{r['f_hi_GHz']:.2f}GHz")
|
||||
print("=" * 78)
|
||||
sys.exit(0)
|
||||
|
||||
# ---- single run ----
|
||||
sim_path = os.path.join(OUT_DIR, "single")
|
||||
freq, s11_dB, zin, vswr, dt = run_case(SLOT_L, FEED_STUB_L, PATCH_L, sim_path, cfg)
|
||||
f_res, s11_min, f_lo, f_hi, bw_pct = find_resonance(freq, s11_dB, zin)
|
||||
i_res = int(np.argmin(np.abs(freq - f_res)))
|
||||
|
||||
# Also report at 10.5 GHz exactly so we see the impedance at the operating freq
|
||||
i_op = int(np.argmin(np.abs(freq - 10.5e9)))
|
||||
|
||||
print()
|
||||
print("=" * 70)
|
||||
print(f" Resonance (Im(Zin)=0): {f_res/1e9:.3f} GHz (target 10.5 GHz)")
|
||||
print(f" S11 at resonance : {s11_min:.2f} dB")
|
||||
print(f" Zin at resonance : {zin[i_res].real:.1f} + j{zin[i_res].imag:.1f} Ω")
|
||||
print(f" ── at 10.500 GHz exactly:")
|
||||
print(f" S11 @ 10.5GHz : {s11_dB[i_op]:.2f} dB")
|
||||
print(f" Zin @ 10.5GHz : {zin[i_op].real:.1f} + j{zin[i_op].imag:.1f} Ω")
|
||||
print(f" VSWR @ 10.5GHz : {vswr[i_op]:.2f}")
|
||||
print(f" -10 dB bandwidth : {(f_hi-f_lo)/1e6:.0f} MHz "
|
||||
f"({f_lo/1e9:.3f} – {f_hi/1e9:.3f} GHz, {bw_pct:.2f}%)")
|
||||
print(f" Sim time : {dt:.1f} s")
|
||||
print("=" * 70)
|
||||
|
||||
fig, ax = plt.subplots(figsize=(8.5, 4.5))
|
||||
ax.plot(freq/1e9, s11_dB, "b-", lw=1.6, label="S11")
|
||||
ax.axhline(-10, color="r", ls="--", lw=0.8, label="-10 dB")
|
||||
ax.axvline(f_res/1e9, color="g", ls=":", lw=0.8,
|
||||
label=f"resonance {f_res/1e9:.3f} GHz")
|
||||
if (f_hi-f_lo) > 0:
|
||||
ax.axvspan(f_lo/1e9, f_hi/1e9, color="g", alpha=0.10,
|
||||
label=f"BW {(f_hi-f_lo)/1e6:.0f} MHz ({bw_pct:.2f}%)")
|
||||
ax.set_xlabel("Frequency (GHz)")
|
||||
ax.set_ylabel("S11 (dB)")
|
||||
ax.set_title(f"AERIS-10 Aperture-Coupled Patch v2 — Stack_Hybrid 4-layer "
|
||||
f"(slot={SLOT_L}mm stub={FEED_STUB_L}mm patch_L={PATCH_L}mm)")
|
||||
ax.set_xlim(F_START/1e9, F_STOP/1e9)
|
||||
ax.set_ylim(-40, 0)
|
||||
ax.grid(True, alpha=0.3)
|
||||
ax.legend(loc="lower right")
|
||||
fig.tight_layout()
|
||||
fig.savefig(os.path.join(OUT_DIR, "S11.png"), dpi=140)
|
||||
plt.close(fig)
|
||||
|
||||
with open(os.path.join(OUT_DIR, "S11_data.csv"), "w", newline="") as f:
|
||||
w = csv.writer(f)
|
||||
w.writerow(["freq_Hz", "S11_dB", "Zin_real", "Zin_imag", "VSWR"])
|
||||
for k in range(len(freq)):
|
||||
w.writerow([freq[k], s11_dB[k], zin[k].real, zin[k].imag, vswr[k]])
|
||||
|
||||
print(f"[out] {OUT_DIR}/S11.png")
|
||||
print(f"[out] {OUT_DIR}/S11_data.csv")
|
||||
Reference in New Issue
Block a user