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Comparative propagation study of pulse-modulated microwaves

✍ Scribed by Thad G. Rolling; T. Koryu Ishii

Publisher
John Wiley and Sons
Year
1996
Tongue
English
Weight
466 KB
Volume
13
Category
Article
ISSN
0895-2477

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✦ Synopsis

We study the reflection and transmission properties of two-dimensional (20) photonic band-gap (PBG) materials with the use of the transfer matrix method. Then, by combining this method with the reciprocity theorem, we calculate the radiation patterns of antennas placed on top of 2 0 PBG materials. The results are in good agreement with recent theoretical and experimental results in similar systems. We also compare the present method of calculating the radiation pattems with a recently proposed method where the PBG crystal is replaced with an equiilalent reflection plane. We show that the present method has several adcantages; for example, it can be used euen for cases where the driuen frequency of the antenna is not inside the PBG.

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