Compact and high selectivity dual-band dual-mode microstrip BPF with single stepped-impedance resonator

2011 ◽  
Vol 47 (5) ◽  
pp. 326 ◽  
Author(s):  
H.-W. Deng ◽  
Y.-J. Zhao ◽  
X.-S. Zhang ◽  
W. Chen ◽  
J.-K. Wang
Keyword(s):  
High Selectivity ◽  
Dual Band ◽  
Dual Mode ◽  
Stepped Impedance Resonator

Dual-mode resonator filter with improved feed-lines for dual-band applications

2020 ◽  
Vol 71 (6) ◽  
pp. 433-435
Author(s):  
Shan Shan Gao ◽  
Jia-Lin Li ◽  
Zhe Lin Zhu ◽  
Jia Li Xu ◽  
Yong Xin Zhao
Keyword(s):  
Simple Structure ◽  
High Selectivity ◽  
Bandpass Filter ◽  
Dual Band ◽  
Dual Mode ◽  
Transmission Zeros ◽  
Good Consistency ◽  
Mode Resonator

AbstractAn improved feedline configuration for dual-mode resonator filter is investigated in this paper. Based on the introduced topology, a dual-mode dual-band bandpass filter with center frequencies of 1.8 and 2.4 GHz is optimally designed, fabricated and tested. The introduced dual-band bandpass filter has simple structure and enables high selectivity to be realized due to two pairs of transmission zeros located near to the lower and upper passband, respectively. Both measured and simulated performances are presented with good consistency.

Multilayer SIW Dual-Band Filters with Independent Band Characteristics and High Selectivity

Frequenz ◽  
2019 ◽  
Vol 73 (9-10) ◽  
pp. 293-300
Author(s):  
Dinghong Jia ◽  
Jianqin Deng ◽  
Yangping Zhao ◽  
Ke Wu
Keyword(s):  
High Selectivity ◽  
Bandpass Filter ◽  
Large Range ◽  
Metal Layer ◽  
Dual Band ◽  
Effective Dimension ◽  
Dual Mode ◽  
Transmission Zeros ◽  
Design Freedom ◽  
Good Agreement

Abstract This work presents an approach to developing dual-mode dual-band substrate integrated waveguide (SIW) bandpass filter based on multilayer process. TE102/TE201 and TE101/TE102 modes are used to feature the two passbands, respectively. To begin with, large range of band location ratios are decided by the effective dimension of the SIW resonator. With reference to the field distribution, independent coupling schemes of the dual-modes are then realized by slots or circular apertures etched on the middle metal layer. It allows to not only introduce a large design freedom of bandwidth but also keep compactness. Finally, source-load and mixed couplings are deployed to produce transmission zeros around the passband in providing a sharp selectivity in the two filters, respectively. The details to independently control the center frequencies and bandwidth of two passbands are also presented. A two-order double-layered and a triple-layered SIW dual-band bandpass filter are prototyped to evaluate the proposed design approach, respectively. Results show a good agreement between simulations and measurements. The proposed filter exhibits flexible design freedom, high selectivity as well as good out-of-band rejection.

Compact and high selectivity dual-mode dual-band microstrip BPF with QWR and SLR

2012 ◽  
Vol 54 (12) ◽  
pp. 2702-2705 ◽  
Author(s):  
Hong-wei Deng ◽  
Yong-jiu Zhao ◽  
Yong Fu ◽  
Xiao-jun Zhou ◽  
Yan-yun Liu
Keyword(s):  
High Selectivity ◽  
Dual Band ◽  
Dual Mode

High‐selectivity dual‐mode dual‐band microstrip bandpass filter with multi‐transmission zeros

2017 ◽  
Vol 53 (7) ◽  
pp. 482-484 ◽  
Author(s):  
Wangshuxing Ieu ◽  
Dewei Zhang ◽  
Dongfang Zhou
Keyword(s):  
High Selectivity ◽  
Bandpass Filter ◽  
Dual Band ◽  
Dual Mode ◽  
Transmission Zeros

Design of compact dual‐mode dual‐band filtering power divider with high selectivity

2015 ◽  
Vol 51 (22) ◽  
pp. 1795-1796 ◽  
Author(s):  
Chuantao Cai ◽  
Jianpeng Wang ◽  
Yijing Deng ◽  
Jia‐Lin Li
Keyword(s):  
High Selectivity ◽  
Power Divider ◽  
Dual Band ◽  
Dual Mode
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