Photonic Band-Gap Materials for High-Gain Printed Circuit Antennas [Letters] - Antennas and Propagation, IEEE Transactions on
نویسندگان
چکیده
It is found through a vector integral-equation analysis and the reciprocity theorem that the gain of a microstrip antenna can be greatly enhanced with a photonic band-gap (PBG) material layer either as the substrate or the superstrate. The beam angle is found to coincide with that of a leaky-wave mode of a planar-grating structure. This observation suggests that high gain is due to the excitation of strong leaky-wave fields.
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