Journal ArticleDOI
Broadband microstrip bandpass filters using triple-mode resonator
TLDR
In this paper, a broadband microstrip bandpass filter using a stub-loaded resonator is proposed, which consists of a half-wave resonator and a shunt open-circuited stub.Abstract:
A broadband microstrip bandpass filter using a stub-loaded resonator is proposed. The basic block of the proposed filter is a triple-mode resonator that consists of a half-wave resonator and a shunt open-circuited stub. A parameter study of how to control the frequencies of the three modes is presented. Two bandpass filters using the proposed resonator have been designed, fabricated and tested to validate the design concept. Design guidelines and a comparison with previous work are also included. For the first bandpass filter, from 1.75 to 3.25 GHz, the measured return loss is greater than 16 dB and the measured insertion loss is less than 0.9 dB. The maximum group delay variation is 0.6 ns. Furthermore, there are two transmission zeros at 1.3 and 3.8 GHz for a better cut-off response. For the second one, from 1.6 to 3.7 GHz, the measured return loss is greater than 14 dB and the measured insertion loss is less than 1 dB. The maximum group delay variation is 0.6 ns, and there are two transmission zeros at 1.36 and 4.03 GHz.read more
Citations
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Journal ArticleDOI
High Selectivity Fifth-Order Wideband Bandpass Filters With Multiple Transmission Zeros Based on Transversal Signal-Interaction Concepts
TL;DR: Two high selectivity fifth-order wideband bandpass filters with multiple transmission zeros based on transversal signalinteraction concepts are proposed in this article, where two transmission paths consisting of a shorted stub and two open coupled lines are used to realize signal transmission from Port 1 to Port 2.
Journal ArticleDOI
Compact UWB Bandpass Filter With a Notched Band Using Radial Stub Loaded Resonator
TL;DR: In this paper, a radial stub loaded resonator (RSLR) is proposed to control two tunable transmission zeros separately and on the other hand, has the ability to provide a notched band.
Journal ArticleDOI
Transversal Signal Interaction: Overview of High-Performance Wideband Bandpass Filters
Wenjie Feng,Wenquan Che,Quan Xue +2 more
TL;DR: In this article, the transversal signal-interaction concepts have been extended to the design of differential wideband/UWB balanced bandpass filters with broadband common-mode suppression in their former works.
Journal ArticleDOI
Compact Ultra-Wideband Bandpass Filter With Improved Upper Stopband Using Open/Shorted Stubs
Xin Gao,Wenjie Feng,Wenquan Che +2 more
TL;DR: In this paper, a compact ultra wideband (UWB) bandpass filter with improved upper stopband using open/shorted stubs is proposed, where seven transmission zeros in the upper-stopband can be realized by different open and short stubs.
Journal ArticleDOI
Proposal and Design of a Power Divider With Wideband Power Division and Port-to-Port Isolation: A New Topology
TL;DR: A novel topology is proposed to design a class of power dividers with the simultaneous realization of wideband power division and port-to-port isolation, exhibiting an extremely wide operating band of 78% fractional bandwidth.
References
More filters
Journal ArticleDOI
Ultra-wideband (UWB) bandpass filters using multiple-mode resonator
Lei Zhu,Sheng Sun,W. Menzel +2 more
TL;DR: In this article, a microstrip-line ultra-wideband (UWB) bandpass filter is proposed and implemented using a multiplemode resonator (MMR), aiming at transmitting the signals in the whole UWB passband of 3.1-10.6GHz.
Journal ArticleDOI
Ultra-wideband bandpass filter with hybrid microstrip/CPW structure
TL;DR: In this article, a hybrid microstrip and coplanar waveguide (CPW) structure was proposed for ultra wideband (UWB) bandpass filter (BPF).
Journal ArticleDOI
EBG-Embedded Multiple-Mode Resonator for UWB Bandpass Filter With Improved Upper-Stopband Performance
Sai Wai Wong,Lei Zhu +1 more
TL;DR: In this paper, an EBG-embedded multiple-mode resonator (MMR) is proposed to constitute an upper-stopband-improved and size-miniaturized ultra wideband (UWB) bandpass filter (BPF).
Journal ArticleDOI
Broadband quasi-Chebyshev bandpass filters with multimode stepped-impedance resonators (SIRs)
TL;DR: In this paper, a planar broadband bandpass filters of order up to 9 are synthesized based on the multimode property of stepped-impedance resonators (SIRs).
Journal ArticleDOI
An optimum ultra-wideband microstrip filter
Jia-Sheng Hong,Hussein Shaman +1 more
TL;DR: In this paper, an ultra-wideband (UWB) microstrip filter with a frac-tional bandwidth (FBW) of more than 100% is designed and demon-strated.
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