DocumentCode :
3205064
Title :
Modeling and application of 2D photonic band gap structures
Author :
Rahman, Mizan ; Stuchly, Maria A.
Author_Institution :
Dept. of Electr. & Comput. Eng., Victoria Univ., BC, Canada
Volume :
2
fYear :
2001
fDate :
2001
Abstract :
Photonic band gap (PBG) structures have originally been explored in electro-optics. During the last five years, 2D planar PBG circuits have also been used at microwave frequencies. PBG structures behave as high impedance surfaces and suppress surface waves in one or more frequency ranges. Until now, these circuits have only been reliably modeled by numerical methods. A new equivalent circuit model is proposed. The model is based on the transmission line theory and periodic structures. The model is simple, but limited as it only allows for determination of the stop bands for the two principal directions of wave propagation. Nevertheless, it is a useful first step in the design of PBG structures. If this model is coupled with a simple numerical modeling using the FDTD method, it predicts the complete characteristics of the structure. The proposed analytical and numerical modeling is applied to improve the performance of a broadband circularly polarized patch antenna
Keywords :
antenna theory; arrays; equivalent circuits; finite difference time-domain analysis; microstrip antennas; microwave devices; periodic structures; photonic band gap; transmission line theory; 2D photonic band gap structures; 2D planar PBG circuits; FDTD method; broadband patch antenna; circularly polarized patch antenna; equivalent circuit model; high impedance surfaces; metal patch array; microwave frequencies; numerical modeling; periodic structures; stop bands; surface wave suppression; transmission line theory; Equivalent circuits; Microwave circuits; Microwave frequencies; Numerical models; Periodic structures; Photonic band gap; Predictive models; Surface impedance; Surface waves; Transmission line theory;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Aerospace Conference, 2001, IEEE Proceedings.
Conference_Location :
Big Sky, MT
Print_ISBN :
0-7803-6599-2
Type :
conf
DOI :
10.1109/AERO.2001.931270
Filename :
931270
Link To Document :
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