RF/microwave bandpass filters (BPFs) are fundamental components in high-frequency RF
transceivers. On the transmitter side, they limit the transmitted RF signal bandwidth by …

In this paper, two simple structures, ie, coupled line and T-shaped microstrip structures, are
used to construct four types of quasi-reflectionless (QR) filters, including single-and two-port …

Classes of input-reflectionless wideband bandpass filters (BPFs) and balun BPF with quasi-
elliptic-type (QET) responses are reported. They consist of two signal-transmission parts in …

An approach to design quasi-elliptic-type planar filters with single-and dual-band bandpass
transfer functions and input-absorptive capabilities is presented. Two-branch channelized …

This article presents a concise two-port asymmetric reciprocal filtering network, which mainly
consists of short-and open-ended coupled lines for designing reflectionless bandpass filters …

In this paper, a reflectionless ultra-wideband (UWB) bandpass filter (BPF) is proposed based
on complementary diplexer, which is composed of a BPF and two bandstop filters (BSFs) …

This article presents a new design concept for dielectric waveguide bandpass filters (BPFs)
with multiple transmission zeros (TZs) by constructing multiple cascaded-trisection (CT) …

Multi-band and all-band absorptive filters can greatly promote the miniaturization of radio
frequency (RF) communication systems. However, the existing absorptive multi-band filters …

With the cross-fertilization development of automatic control technology, electronic science
and technology, and wireless communication technology, a single filter is no longer able to …

This work presents the design and analysis of a novel dual-wideband bandpass filter (BPF)
using the transversal filtering section (TFS), coupled lines (CLs), and stepped impedance …