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IEEE Antennas and Wireless Propagation Letters > 2017 > 16 > 1139 - 1142
IEEE Access > 2017 > 5 > 15055 - 15065
IEEE Transactions on Antennas and Propagation > 2011 > 59 > 5 > 1472 - 1480
IEEE Transactions on Antennas and Propagation > 2011 > 59 > 9 > 3424 - 3427
2009 Asia Pacific Microwave Conference > 763 - 765