July 30, 2025

Microstrip patch antennas commonly use four feeding methods: edge feeding (50Ω impedance matching with λ/4 transformer), probe feeding (1-2mm diameter pin at optimal 30-40% patch length), aperture coupling (1-3mm slot with 1-2dB lower cross-polarization), and proximity coupling (2-5mm overlap for wider bandwidth up to 15%). Each method balances bandwidth (2-5% vs 10-15%), complexity, and spurious […]

When selecting an antenna, key factors include frequency range (e.g., 2.4-5 GHz for WiFi), gain (6-10 dBi for typical applications), polarization (linear/circular based on use case), and radiation pattern (omnidirectional vs. directional with 30-60° beamwidth). Environmental factors like mounting height (optimal 5-15m for urban areas) and material durability (UV-resistant ABS or aluminum housing) also critically