Planar patch antenna with 100‐μm slit for size reduction and dual‐band applications

Abstract

Planar patch antenna with a 100-mm slit parallel to radiating edge is designed resulting in significant size reduction of 76% and dual-frequency operation. Tuning in the frequency range of 2.33-2.78 GHz is achieved for the lower operating frequency by introducing partial slit of varying lengths with comparable size reduction. The upper resonant frequency is higher than the resonant frequency of the simple patch by about 15-20% which is also tunable in the frequency range of 4.9-5.11 GHz, albeit not independently of the lower frequency.