Compact LTCC Dual-Mode Filter With Non-Orthogonal Feeding and Harmonics Suppression for 5g Applications

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.

Miniaturized metallic symmetrical resonator backed CPW inspired dual band filter using Meander line for 5G mm‐wave applications

“…The abundant users of multi-service wireless systems lead to overcrowding of the existing frequency spectrum. [1][2][3] To overcome these issues the RF spectrum has to adopt for 5G mm-wave bands which provides higher channel capacity and accommodate massive mobile traffic. Microwave filters are highly inevitable to differentiate the desired service in the multiservice environment.…”

“…Hence, the major goal of the multiservice wireless mobile communication systems is to offer exceptional QoS in limited power within the allocated spectrum. The abundant users of multi‐service wireless systems lead to overcrowding of the existing frequency spectrum 1–3 . To overcome these issues the RF spectrum has to adopt for 5G mm‐wave bands which provides higher channel capacity and accommodate massive mobile traffic.…”