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IEEE Microwave and Wireless Components Letters > 2011 > 21 > 1 > 7 - 9
Electronics Letters > 2008 > 44 > 8 > 530 - 531
IEEE Microwave and Wireless Components Letters > 2011 > 21 > 1 > 7 - 9
Electronics Letters > 2008 > 44 > 8 > 530 - 531