Microstrip Patch Antenna Calculator [upd] -

return "Width (mm)": round(W_mm, 2), "Length (mm)": round(L_mm, 2), "Effective permittivity": round(ereff, 3), "Delta L (mm)": round(delta_L_mm, 3), "Edge resistance (ohms)": round(R_edge, 1), "Inset from center for 50Ω (mm)": round(y0_mm, 2) if y0_mm else "N/A"

FR-4 (( \varepsilon_r = 4.4 ), ( h = 1.6 , mm )). microstrip patch antenna calculator

# Effective permittivity ereff = (er + 1)/2 + ((er - 1)/2) * (1 / math.sqrt(1 + 12 * h / W_m)) return "Width (mm)": round(W_mm

import math def microstrip_patch_calc(freq_GHz, er, h_mm): """ Calculate rectangular microstrip patch antenna dimensions. freq_GHz : resonant frequency in GHz er : relative permittivity of substrate h_mm : substrate height in mm Returns dict with width, length, eff_permittivity, delta_L, inset_50 """ c = 299792458 # speed of light m/s f = freq_GHz * 1e9 h = h_mm / 1000 # convert to meters W_m = (c / (2 * f)) * math.sqrt(2 / (er + 1)) W_mm = W_m * 1000 "Length (mm)": round(L_mm