Multiband bandpass filters (BPFs) and multiplexers are essential front-end modules in the
development of multifunction, multistandard, and multiband wireless communication …

In this article, quarter-mode substrate-integrated waveguide (QMSIW) filters featuring
ultrawide stopband and flexibly allocated transmission zeros (TZs) are proposed. Eight …

A class of RF low-pass filters (LPFs) simultaneously featuring flat-in-band-group-delay and
input-quasi-reflectionless characteristics is reported for the first time. By means of a …

In this paper, a planar wideband balanced-to-balanced microstrip diplexer with excellent
reflectionless characteristics is presented. In order to solve the problem of interference …

In this article, a simple and general method for the design of cross-coupled bandpass filters
with compact size is proposed by virtue of the circular patch resonator. Owing to the unique …

This brief presents a new wide stopband substrate integrated waveguide (SIW) filter with
multimode suppression based on a multilayer structure. All spurious modes below TE404 of …

In this brief, a substrate integrated waveguide (SIW) bandpass filter (BPF) with wide out-of-
band rejection is researched and fabricated with the center frequency of 45.8 GHz and 3-dB …

In this article, two coplanar-strip (CPS) wideband balanced bandpass filters with intrinsic
common-mode (CM) suppression are proposed based on shunt-stub structures. As …

Miniaturized substrate integrated waveguide (SIW) diplexers with widely separated channel
passbands using common half-mode dual-mode SIW junction-cavities are presented and …

A low-loss and low-cost terahertz (THz) substrate-integrated waveguide (SIW) and a SIW
filter implemented in a commercially-available GaAs integrated-passive-devices (IPD) …