Study Of Surface Wave Band Gap Enhancement Structure And Its Application On The Microstrip Antenna

The surface wave band gap enhancement characteristic for a mushroom-like PBGstructure is studied in this paper. The mechanism of surface wave band gap is analyzed.The method of theoretical analysis for mushroom-like PBG structure and theexperiment measurement technique of the surface wave band gap are introduced. Inwhat follows, emphasis in this paper is placed on the applications of PBG structures inmicros trip antenna field.In this thesis the applications of the mushroom-like PBG structure in microstripantenna field are addressed. The HFSS software is utilized to analyze the antennaparameters. And simulated results indicate that the longer the resonant circuit is, thelarger the equivalent inductance is. The center frequency (resonant frequency) of theband gap shifts to the lower frequencies.Finally, this article analyses microstrip antenna parameters with1,2and3PBGstructure loaded, whose result analysis verifies the correctness of the mushroom-likePBG structure.