Journal ArticleDOI
Miniaturized Dual-Mode Bandpass Filter with Controllable Harmonic Response for Dual-Band Applications
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TLDR
In this paper, a miniaturized dual-mode bandpass filter with controllable harmonic response for dual-band applications is presented, which is designed with loading distributed capacitors in the inner area of conventional dualmode loop resonator.Abstract:
A miniaturized dual-mode bandpass filter with controllable harmonic response for dual-band applications is presented in this paper. The new bandpass filter is designed with loading distributed capacitors in the inner area of conventional dual-mode loop resonator. This loading can realize both compact size and controllable harmonic response of the filter. A demonstrated filter with the dual-band operating at 1.8 and 2.6 GHz was designed, fabricated and measured. Simulated and measured results indicate that a high selective dual-mode dual-band filter with its size reduced to 34.5% of the conventional case at about 1.8 GHz has been achieved.read more
Citations
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Journal ArticleDOI
A Dual-Wideband Bandpass Filter Based on E-Shaped Microstrip Sir with Improved Upper-Stopband Performance
TL;DR: In this paper, a dual-wideband microstrip bandpass fllter with improved upper-stopband performance is presented, which uses E-shaped microstrip Stepped-Impedance Resonator (SIR) and input-output cross-coupling feed structure.
Journal ArticleDOI
Novel Miniaturized Bandpass Filters Using Spiral-Shaped Resonators and Window Feed Structures
Gao-Le Dai,Ming-Yao Xia +1 more
TL;DR: In this paper, a new class of miniaturized microstrip bandpass fllters with low-insertion loss, sharp-rejection and narrow-band performance is presented.
Journal ArticleDOI
Design of different selectivity dual-mode filters with e-shaped resonator
TL;DR: In this article, a bandpass fllter design method of achieving different selectivity based on E-shaped dual-mode resonator is presented, which utilizes capacitive and inductive input-output cross-coupling to generate two adjustable transmission zeros at stopband.
Journal ArticleDOI
A New Wide-Stopband Low-Pass Filter with Generalized Coupled-Line Circuit and Analytical Theory
TL;DR: In this article, a generalized coupled-line circuit is introduced to construct a wide-stopband low-pass fllter, which includes two-section coupled lines and a connected transmission-line stub.
Journal ArticleDOI
Very miniature dual-band and dual-mode bandpass filter designs on an integrated passive device chip
TL;DR: In this article, the authors presented extremely compact dual-mode and dual-band bandpass fllter designs based on dual-resonance composite resonators developed by using integrated passive device (IPD) technology on a glass substrate.
References
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Journal ArticleDOI
Compact elliptic-function low-pass filters using microstrip stepped-impedance hairpin resonators
Lung-Hwa Hsieh,Kai Chang +1 more
TL;DR: In this article, a compact elliptic-function low-pass filter using microstrip stepped-impendance hairpin resonators and their equivalent-circuit models is developed.
Journal ArticleDOI
Dual-Mode Dual-Band Bandpass Filter Using Stacked-Loop Structure
TL;DR: In this article, a dual-mode dual-band bandpass filter using stacked-loop structure is proposed, which allows two transmission paths to radio frequency (RF) signals, each of them using dualmode resonators results in respective passband.
Journal ArticleDOI
Novel Dual-Mode Dual-Band Filters Using Coplanar-Waveguide-Fed Ring Resonators
Xiu Yin Zhang,Quan Xue +1 more
TL;DR: In this article, two microstrip perturbed ring resonators are employed to obtain dual-mode dual-band responses, and two kinds of filter configurations with compact size are proposed to satisfy various requirements of external qualify factors and coupling coefficients at both passbands.
Journal ArticleDOI
A novel compact ring dual-mode filter with adjustable second-passband for dual-band applications
TL;DR: In this article, a ring resonator with two different geometric dimensions is derived and designed to have identical fundamental and the first higher-order resonant frequencies, and the proposed filter has smaller size as compared with the basic topology of stopband filters and stepped-impedance-resonator (SIR) filters.
Journal ArticleDOI
A Compact Slow-Wave Microstrip Branch-Line Coupler With High Performance
TL;DR: In this article, a compact slow-wave microstrip branch-line coupler is presented, which not only reduces the occupied area to 28% of the conventional branch line coupler at 2.0 GHz, but also has high second harmonic suppression performance.