Input impedance of concentric ring microstrip antennas for dual frequency band operation including surface wave coupling
1990 ◽
Vol 137
(6)
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pp. 331
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2009 ◽
Vol 3
(8)
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pp. 1151
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2008 ◽
Vol 1
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pp. 191-198
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2018 ◽
Vol 17
(10)
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pp. 1890-1894
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