Design of a Small-Size Broadband Circularly Polarized Microstrip Antenna Array
2018 ◽
Vol 2018
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pp. 1-10
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Keyword(s):
A small-size 2×2 broadband circularly polarized microstrip antenna array is proposed in this article. The array has four broadband dual-feed U-slot patch antenna elements with circular polarization, and the sequential feeding technique is used to further enhance the 3 dB axial ratio bandwidth. The lateral size of the fabricated array is as small as 1.33λ0×1.33λ0, and the profile is only 0.04λ0. Measured results show that the overlapped −10 dB reflection coefficient and the 3 dB AR bandwidth is 53%, and the variation of the measured realized gain is less than 1 dB for S-band satellite communications (1.98–2.2 GHz).
2014 ◽
Vol 662
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pp. 243-246
Keyword(s):
2017 ◽
Vol 66
◽
pp. 135-141
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2017 ◽
Vol 65
(12)
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pp. 7073-7082
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2011 ◽
Vol 10
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pp. 1358-1361
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Keyword(s):