A new type of microstrip dual-mode dual-band bandpass filter (BPF) using a single
quadruple-mode resonator (QMR) is proposed in this paper. The classical even-/odd-mode …

In this paper, compact ultra-wideband (UWB) bandpass filters with ultra-narrow dual-and
quad-notched bands are proposed using the broadside-coupled microstrip/coplanar …

It has been over a decade since stepped-impedance resonators (SIRs) first carved a niche
in applications for multiband bandpass filter (BPF) design. This was the first class of …

In this paper, a compact dual‐band bandpass filter (DB‐BPF) is implemented by using a pair
of coupled stepped impedance resonators (SIRs) and a pair of λ/2 bended resonators for the …

An efficient and practical design method for a dual-band bandpass filter (BPF) is presented.
The electrical specifications of the filter, such as the center frequency, bandwidth, and …

This paper describes a stacked spiral resonator (SSR) structure for designing very compact
multiband bandpass filters. The resonant frequencies of the proposed SSR structure can be …

A compact microstrip dual-band bandpass filter (BPF) using the embedded open-loop ring
resonator is proposed. The filter can achieve two passbands without using the external dual …

A novel compact planar triple-band bandpass filter using two sets of short stub-loaded
stepped impedance resonators (SSLSIRs) and a pair of embedded stepped impedance …

In this letter, a compact bandpass filter is proposed based on the hybrid microstrip/defected
ground structure (DGS) cells with an interdigital-coupled (IC) scheme. The hybrid cell can …

A novel short‐and open‐stub loaded spiral resonator (SOSL‐SR) is presented and analysed
by the odd‐and even‐mode method to obtain three controllable resonant modes. Therefore …