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Broad beamwidth circular polarisation antenna: Microstrip-monopole antenna

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5 Author(s)
Chuan Wu ; Sch. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu, China ; Lei Han ; Feng Yang ; Liangyi Wang
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A novel broad beamwidth circular polarisation antenna called a microstrip-monopole antenna (MMA) is proposed. By loading four cylinders which are perpendicular to the substrate of the microstrip antenna near the edge of a circular patch, broad beamwidth is achieved. Using this simple method, the MMA is invented. The 3 dB beamwidth of the MMA is about 156 at central frequency, which is 110 wider than the classical microstrip antenna. So the MMA is a good candidate as wide-angle scanning phased array. Measured and simulated results are demonstrated and good agreement is obtained.

Published in:

Electronics Letters  (Volume:48 ,  Issue: 19 )