Ai, J., Zhang, Y., Xu, K., Shen, M., Ma, T., & Joines, W. T. (2017). Miniaturized Quad-band Bandstop Filter with Controllable Frequencies Using Multiple-Mode Resonator. In 2017 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING (pp. 2263–2264). San Diego, CA: IEEE.

Ai, Jing, Yonghong Zhang, Kaida Xu, Mengkui Shen, Tianye Ma, and William T. Joines. “Miniaturized Quad-band Bandstop Filter with Controllable Frequencies Using Multiple-Mode Resonator.” In 2017 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING, 2263–64. IEEE, 2017.

Ai J, Zhang Y, Xu K, Shen M, Ma T, Joines WT. Miniaturized Quad-band Bandstop Filter with Controllable Frequencies Using Multiple-Mode Resonator. In: 2017 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING. IEEE; 2017. p. 2263–4.

Ai, Jing, et al. “Miniaturized Quad-band Bandstop Filter with Controllable Frequencies Using Multiple-Mode Resonator.” 2017 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING, IEEE, 2017, pp. 2263–64.

Ai J, Zhang Y, Xu K, Shen M, Ma T, Joines WT. Miniaturized Quad-band Bandstop Filter with Controllable Frequencies Using Multiple-Mode Resonator. 2017 IEEE INTERNATIONAL SYMPOSIUM ON ANTENNAS AND PROPAGATION & USNC/URSI NATIONAL RADIO SCIENCE MEETING. IEEE; 2017. p. 2263–2264.