Design of a 2.4GHz-Microstrip Line Filter Using the Semicircle Defected Ground Structure

摘要

A design and simulation for L-shaped slot microstrip line antenna with semicircle ground structure has been researched, the main purpose is suppressing the existence of higher order harmonic. In this paper, simulated soft (Ansoft HFSS V.6.0) used to be simulated the frequency response under different parameters such as dimensions, amounts of SDGS. The results show good performance of SDGS in higher resonant frequency suppression. Final, an antenna with 2.4GHz center frequency had been design and fabricated.