作者: A. Bhattacharyya , R. Garg
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摘要: Input impedance and bandwidth of an annular ring microstrip antenna have been determined by modeling the as a section radial line loaded with wall admittances. The effect mutual coupling between radiating apertures has taken into account. theoretically calculated values input for TM 12 -mode are compared measurements. agreement is good. Higher order modes found to be present in vicinity -mode. reactance due these can utilized increase voltage standing-wave ratio (VSWR) antenna.