Synthesis of lumped‐element dual‐band bandpass filters with independently controllable bandwidth

2022 ◽  
Author(s):  
Zhuoyin Chen ◽  
Yongle Wu ◽  
Weimin Wang
Keyword(s):  
Bandpass Filters ◽  
Dual Band ◽  
Lumped Element

Quasi-elliptic dual-band bandpass filters based on series-cascaded multi-resonant cells

2020 ◽  
Vol 12 (7) ◽  
pp. 609-614
Author(s):  
Andrea Ashley ◽  
Dakotah J. Simpson ◽  
Dimitra Psychogiou
Keyword(s):  
Radio Frequency ◽  
Insertion Loss ◽  
Transfer Functions ◽  
Bandpass Filters ◽  
Dual Band ◽  
Proof Of Concept ◽  
Lumped Element ◽  
Transmission Zeros ◽  
Design Competition ◽  
Implementation Scheme

AbstractThis paper reports on quasi-elliptic dual-band bandpass filters (BPFs) that were designed for the Filter Student Design Competition of the 2019 European Microwave Week. The proposed lumped-element (LE) BPF concept is based on two dual-band transversal cells and one multi-resonant cell that allow the realization of symmetric and asymmetric dual-band transfer functions shaped by six poles and five transmission zeros. A compact implementation scheme based on LE series resonators is proposed for size compactness and wide spurious free out-of-band response. For proof-of-concept demonstration purposes, a dual-band LE prototype with two passbands centered 1 and 1.5 GHz was designed, manufactured, and measured. It exhibited the following radio frequency measured performance characteristics. Passbands centered at 1.02 and 1.45 GHz, minimum insertion loss levels of 2.0 and 2.7 dB, and bandwidth of 146 and 105 MHz, respectively, for the first and the second passband, and out-of-band rejection >30 dB between 0 and 894 MHz, 1.17–1.34 GHz, and 1.72–6.9 GHz.

Dual-Band Semi-Lumped-Element Power Dividers at UHF/SHF Bands

2021 ◽  
Author(s):  
Tadashi Kawai ◽  
Kensuke Nagano ◽  
Akira Enokihara
Keyword(s):  
Dual Band ◽  
Power Dividers ◽  
Lumped Element

Non-Reciprocal MMIC-Based Dual-Band Bandpass Filters

2021 ◽  
Author(s):  
Andrea Ashley ◽  
Dimitra Psychogiou
Keyword(s):  
Bandpass Filters ◽  
Dual Band

A Hybrid SAW-Resonator/Lumped-Element Dual-Band Bandstop Filter with Continuously Tunable Bandwidths

2021 ◽  
Author(s):  
Ruixuan Chen ◽  
Qingyuan Zhang ◽  
Qiao Zhang ◽  
Lingyun Zhou ◽  
Chang Chen
Keyword(s):  
Dual Band ◽  
Lumped Element ◽  
Bandstop Filter
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