A Novel Simple and Compact Microstrip-Fed Circularly Polarized Wide Slot Antenna With Wide Axial Ratio Bandwidth for C-Band Applications


This communication presents a style of a new compact circularly polarized (CP) slot antenna fed by a microstrip feedline. The three-dB axial ratio band can be achieved by simply protruding a horizontal stub from the ground plane toward the middle of the wide slot (WS) and then feeding the WS with a microstrip feedline positioned to the aspect of the WS, beneath the protruded stub. The feedline and metallic stub are perpendicular to every alternative, and they resemble a T form when viewed from the high. The proposed antenna is fabricated with an space of . Measurement results show that the antenna attains an impedance matching bandwidth of ninety.two%, from three.five to nine.25 GHz, and a broadband three dB-AR bandwidth of 40percent, ranging from to six.9 GHz. A peak gain of 0.8–four.five dBi is achieved at intervals the AR band. The proposed antenna is suitable for circular polarization applications in C band.

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