Number 9
نویسندگان
چکیده
The electromagnetic band gap structures are widely used to suppress pronounced surface waves in antennas with thicker substrate and higher dielectric constant. This paper reviews various application of Electromagnetic band gap structure in microstrip antenna, a band gap characterization of an electromagnetic bandgap structure along with the explanation of various reported configurations of compact electromagnetic band gap structures. Chebyshev tapered electromagnetic band gap distribution is adopted to minimize ripples in the passband caused by the periodicity of planar electromagnetic band gap structure. They are used with ceramic substrate to increase the radiation efficiency of the antenna and are placed along the inset feed line to improve antenna performance, however to reduce mutual coupling it is placed between antenna arrays. A dual band circularly symmetric structure for the enhancement of radiation properties of microstrip antenna is also studied.
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