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IEEE Electron Device Letters > 2016 > 37 > 4 > 449 - 451
IEEE Transactions on Antennas and Propagation > 2016 > 64 > 2 > 820 - 825
IEEE Transactions on Microwave Theory and Techniques > 2016 > 64 > 1 > 188 - 199
IEEE Transactions on Antennas and Propagation > 2015 > 63 > 12 > 5305 - 5315