A novel microstrip dual-band bandpass filter (BPF) by coupling a stub-loaded hairpin
resonator and two stub-loaded uniform impedance resonators (UIRs) is proposed. First, a …

This paper presents a dual-band bandpass filter with independent switchability of each
passband. By taking advantage of harmonic ratio of asymmetric stepped-impedance …

In this paper, we present balanced dual-band bandpass filters (BPFs) using asymmetrical
coupled lines. The proposed dual-band BPF has an enhanced common-mode suppression …

This paper proposes an analytical method to design a dual-band Alter using the short-circuit
terminated half-wavelength stepped-impedance resonator (SIR). The SIR has an advantage …

Novel stub-loaded theory is presented and applied to design balanced dual-band bandpass
filter with independently controlled passband frequencies and bandwidths. According to the …

Microwave dielectric ceramics with a high-quality factor are vital materials for substrates,
dielectric resonators, and filters in millimeter-wave communication systems. Here, a novel …

A simple and effective method to design a dual-band bandpass filter with high isolation and
wide stopband is presented and validated using symmetric open-circuited stub-loaded …

A four-pole dual-band bandpass filter is designed with stub-loaded resonators and dual-
feeding structure. The stub-loaded resonator generates two resonant modes, and the …

A new dual-bandpass 180° hybrid coupler, based on four properly designed shorted-stub
loaded stepped-impedance resonators, is proposed in this paper. In order to construct the …

This paper presents the design of an eight-pole dual-band bandpass high-temperature
superconducting (HTS) filter with modified stub-loaded resonators (SLRs) and dual-feeding …