This paper presents a low-profile dual-band filtering antenna element and its application to
long-term evolution (LTE) multiple-input multiple-output (MIMO) system for wireless …

This paper provides an overview of balanced (or differential-mode) structures operating at
microwaves, including common-mode suppression filters, balanced filters and circuits with …

A new type of RF microwave differential-mode planar multiband bandpass filters (BPFs) are
presented. Each symmetrical half of the proposed balanced filtering architecture is …

A coupled-line coupling structure is proposed for the design of quasi-elliptic bandpass filters
(BPFs). The coupled-line structure functions as the input coupling structure for a BPF and …

In this paper, a new quadruple-mode stepped-impedance square ring loaded resonator (SI-
SRLR) is proposed, and a high-performance dual-band differential bandpass filter (BPF) is …

This paper presents a varactor-and stub-loaded dumbbell-shaped resonator (VSDSR) for
application in differential dual-band bandpass filter, which possesses a tunable lower …

This brief presents a dual-band balanced filter with wide stopband, controllable transmission
zeros and bandwidths, and compact size based on a newly designed electromagnetically …

In this paper, a fourth-order dual-band high-temperature superconducting (HTS) differential
bandpass filter (BPF) with controllable midband frequencies and bandwidths is developed …

Novel multiband balanced bandpass filters with controllable bandwidths are presented in
this letter. Slotline coupled-feed structure (SLCFS) is employed to suppress the common …

This paper presents a novel quarter-mode packaged bandpass filter with four transmission
zeros (TZs) in substrate-integrated waveguide (SIW) technology. The filter has an insertion …