A Novel Dual-Mode Bandpass Filter Based on a Defected Waveguide Resonator

Guan, Xuehui

doi:10.4218/etrij.11.0211.0034

Cited by 3 publications

(1 citation statement)

References 11 publications

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“…The dark circles and the white circles indicate resonant modes of resonators and source/load, respectively. Mode 1 is generated by the microstrip resonator; modes 2 and 3 are even and odd modes of the dual-mode DGS resonator [16]. These modes are all directly coupled to both the source and the load.…”

Section: Analysis Of Filter Structurementioning

confidence: 99%

A Novel Triple-Mode Bandpass Filter Based on a Dual-Mode Defected Ground Structure Resonator and a Microstrip Resonator

Guan

Yuan

Song

et al. 2013

International Journal of Antennas and Propagation

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A novel triple-mode bandpass filter (BPF) using a dual-mode defected ground structure (DGS) resonator and a microstrip resonator is proposed in this paper. The dual-mode characteristic is achieved by loading a defected T-shaped stub to a uniform impedance DGS resonator. A uniform impedance microstrip resonator is designed on the top layer of the DGS resonator and a compact bandpass filter with three resonant modes in the passband can be achieved. A coupling scheme for the structure is given and the coupling matrix is synthesized. Based on the structure, a triple-mode BPF with central frequency of 2.57 GHz and equal ripple bandwidth of 15% is designed for the Wireless Local Area Network. Three transmission zeros are achieved at 1.48 GHz, 2.17 GHz, and 4.18 GHz, respectively, which improve the stopband characteristics of the filter. The proposed filter is fabricated and measured. Good agreements between measured results and simulated results verify the proposed structure well.

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Section: Analysis Of Filter Structurementioning

confidence: 99%

A Novel Triple-Mode Bandpass Filter Based on a Dual-Mode Defected Ground Structure Resonator and a Microstrip Resonator

Guan

Yuan

Song

et al. 2013

International Journal of Antennas and Propagation

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Design of Bandpass Filter Based on Asymmetrical T-shaped Resonators

Lerdwanittip

ApiradaNamsang

Jantree

2016

Procedia Computer Science

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Quad-Band Bandpass Filter Using Quad-Mode Stub-loaded Resonators

Liu¹,

Wang²,

Wang³

et al. 2014

ETRI J

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Compact multi‐band bandpass filters using quad‐mode stub‐loaded resonators are proposed in this letter. Firstly, a novel approach about the mode‐splitting characteristics of the quadruple‐mode resonator is investigated, which can provide dual‐band behavior. Secondly, a quad‐band filter is proposed and designed by cascading two quadruple‐mode resonators; the upper one operates at 1.8/2.4 GHz (GSM‐ and WiMax‐band) and the lower one at 1.57/2.1 GHz (GPS‐ and WCDMA‐band). Finally, the proposed filters have been fabricated. Respectable agreement between simulation and measurement verifies the validity of this design methodology.

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A Novel Dual-Mode Bandpass Filter Based on a Defected Waveguide Resonator

Cited by 3 publications

References 11 publications

A Novel Triple-Mode Bandpass Filter Based on a Dual-Mode Defected Ground Structure Resonator and a Microstrip Resonator

A Novel Triple-Mode Bandpass Filter Based on a Dual-Mode Defected Ground Structure Resonator and a Microstrip Resonator

Design of Bandpass Filter Based on Asymmetrical T-shaped Resonators

Quad-Band Bandpass Filter Using Quad-Mode Stub-loaded Resonators

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