Low-profile Inverted A-Shaped Patch Antenna for Multi-band Operations
نویسندگان
چکیده
A low-profile modified inverted-A shape patch antenna for multi-band operations is designed, fabricated and analyzed. The proposed antenna has 20x20 mm radiating patch fed by 4 mm long microstrip line on 1.6 mm thick fiberglass polymer resin dielectric material substrate and a reduced ground plane. The proposed antenna is designed and simulated by using market available 3-dimensional high frequency electromagnetic simulator HFSS and the antenna properties are measured in a standard far field anechoic chamber. The measurement results shows that impedance bandwidths (return loss<-10dB) are of 360 MHz (2.53-2.89 GHz) and 440 MHz (3.47-3.91 GHz) for WiMAX, and 1550 MHz (6.28-7.83 GHz) for C-band satellite applications. The maximum measured gain of 3.62 dBi, 3.67 dBi and 5.7 dBi are obtained at lower, middle and upper band respectively. The analysis results show almost stable radiation patterns and high efficiencies for the proposed antenna in all bands of interest. Keywords-microstrip antenna, multiband application, fiberglass polymer resin, anechoic chamber, WiMAX, C-band.
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تاریخ انتشار 2014