Microstrip Patch Antenna Calculator Updated ⭐

1. Introduction A microstrip patch antenna consists of a radiating metallic patch printed on a grounded dielectric substrate. It is widely used in wireless communication (Wi-Fi, GPS, 5G, RFID) due to its low profile, light weight, and ease of fabrication.

# Effective length and physical length Leff = c / (2 * f * math.sqrt(ereff)) L_m = Leff - 2 * delta_L_m L_mm = L_m * 1000

# Inset feed for 50 ohms target_Z = 50 if target_Z < R_edge: y0_m = (L_m / math.pi) * math.acos(math.sqrt(target_Z / R_edge)) y0_mm = y0_m * 1000 else: y0_mm = None # cannot match with inset; use other method microstrip patch antenna calculator

# Fringing extension num = (ereff + 0.3) * (W_m / h + 0.264) den = (ereff - 0.258) * (W_m / h + 0.8) delta_L_m = 0.412 * h * (num / den) delta_L_mm = delta_L_m * 1000

For a reliable design, combine calculator output with electromagnetic simulation and at least one physical iteration. Happy antenna designing! End of piece. # Effective length and physical length Leff =

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"

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 return "Width (mm)": round(W_mm

FR-4 (( \varepsilon_r = 4.4 ), ( h = 1.6 , mm )).