K. Dhwaj, J. M. Kovitz, H. Tian, L. J. Jiang and T. Itoh, “Half-Mode Cavity-Based Planar Filtering Antenna With Controllable Transmission Zeroes,” IEEE Antennas and Wireless Propagation Letters, vol. 17, no. 5, pp. 833-836, May 2018.
K. Dhwaj, J. M. Kovitz, H. Tian, L. J. Jiang and T. Itoh, “Half-Mode Cavity-Based Planar Filtering Antenna With Controllable Transmission Zeroes,” IEEE Antennas and Wireless Propagation Letters, vol. 17, no. 5, pp. 833-836, May 2018.