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A design of broadband circularly polarized (CP) microstrip antenna with a truncated-corner patch is presented in this paper. Using a single chip-resistor loading at the axis-line orthogonal to the feed location line, the truncated-corner microstrip antenna exhibits an effective axial ratio (AR) bandwidth of 3.0%, which is about three times of that without any chip-resistor loading. The proposed CP...
A broadband microstrip dipole antenna loaded with shorted pin is experimentally presented in the paper. The bandwidth of the antenna has increased from 70 MHz (3.5% bandwidth in 2 GHz) to 190 MHz (9.5% bandwidth in 2 GHz) by using a shorted pin. With a vertical gain of 2.7 dB and front-back gain of more than 5 dB, this broadband microstrip dipole antenna has features desirable in array application...
A single-feed circular polarized (CP) rectangular microstrip antenna (MPA) is proposed. Capacitive disk coupling feed is used in the design. By connecting a resistor load to another capacitive disk at the opposite position, CP radiation over a wide frequency range is realized. Experimental results show that the fabricated antenna has an impedance bandwidth (S11 return loss) of 78.7% and a 3-dB axial...
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