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2020-06-09
Compact LTCC Dual-Mode Filter with Non-Orthogonal Feeding and Harmonics Suppression for 5G Applications
By
Progress In Electromagnetics Research Letters, Vol. 92, 17-24, 2020
Abstract
A dual-mode band-pass filter (BPF) for the fifth generation (5G) N78 band applications is proposed based on a 2-layer low temperature cofired ceramic (LTCC) substrate. The proposed BPF is built with a square resonator and two pairs of open-stubs, which suppressed the 2nd-order and 3rd-order 27 and 21 dB, respectively. The proposed BPF not only achieved a size reduction of 50% compared with a single-mode implementation, but also possessed a non-orthogonal input/output (I/O) feeding style, which presents convenient interconnection and integration with neighboring devices. Moreover, the dual-mode BPF does not need a conventional disturbing element to excite two degenerate modes. Comparison and discussion are carried out as well.
Citation
Changkun Li, Li Qian, Ziyang Zhang, Yunheng Wang, and Bo Zhou, "Compact LTCC Dual-Mode Filter with Non-Orthogonal Feeding and Harmonics Suppression for 5G Applications," Progress In Electromagnetics Research Letters, Vol. 92, 17-24, 2020.
doi:10.2528/PIERL20022705
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