An annular-ring slot antenna with CP radiation and harmonic suppression
2013 ◽
Vol 39
◽
pp. 133-140
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2014 ◽
Vol 25
(4)
◽
pp. 337-345
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2015 ◽
Vol 58
(2)
◽
pp. 323-328
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2015 ◽
Vol 19
(1)
◽
pp. 19-25