Novel Broadband Bandpass Filters Using Y-Shaped Dual-Mode Microstrip Resonators

• Published in: IEEE microwave and wireless components letters Vol. 19; no. 9; pp. 548 - 550
• Main Authors: Song, Kaijun, Xue, Quan
• Format: Journal Article
• Language: English
• Published: New York, NY IEEE 01.09.2009; Institute of Electrical and Electronics Engineers
• Subjects: Applied sciences; Band pass filters; Bandpass filter (BPF); Bandpass filters; Bandwidth; Broadband; Circuit properties; Couplings; dual mode; Electric, optical and optoelectronic circuits; Electronic circuits; Electronics; Exact sciences and technology; Feeds; Filtering theory; Frequency filters; Group delay; Insertion loss; microstrip; Microstrip filters; Microstrip resonators; Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits; Microwaves; Noise levels; Oscillators, resonators, synthetizers; Resonance; Resonant frequency; Resonators; Simulation; Y-shaped resonator; Performance evaluation; Microstrip filters; Multivariable control; Return loss; dual mode; Parallel architectures; Microstrip resonator; Y shape; Bandpass filter (BPF); Mode filter; microstrip; Wide band; Resonance frequency; broadband; Insertion loss; Band pass filter; Y-shaped resonator; Group delay

A Y-shaped dual-mode microstrip bandpass filter (BPF) with input-output cross-coupling is presented. The characteristic of the Y-shaped dual-mode resonator has been investigated. The resonance frequencies of the degenerate modes can be adjusted easily to satisfy the bandwidth of the BPF. A parallel-...