A broadband bandpass filter using triple-mode defected ground structure resonator

Lamin Zhan; Yang Pei; Fangsheng Chen; Qinghua Tang; Chenyu Liang

doi:10.1587/elex.15.20180234

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A broadband bandpass filter using triple-mode defected ground structure resonator

Lamin Zhan, Yang Pei, Fangsheng Chen, Qinghua Tang, Chenyu Liang

著者情報

キーワード: tri-mode resonator, defected ground structure resonator, bandpass filter

ジャーナルフリー早期公開

論文ID: 15.20180234

DOI https://doi.org/10.1587/elex.15.20180234

この記事には本公開記事があります。

The final version of this article is now available: Vol. 15 (2018), No. 8 pp. 20180234-20180234

詳細

抄録

A broadband bandpass filter with a dual-plane structure is proposed. The dual-plane structure consists of a pair of L shaped microstrip feed lines on the top layer and a triple-mode defected ground structure resonator (TMDGSR) on the bottom layer. Electric field distributions and frequency response of the TMDGSR are investigated. A sample filter using TMDGSR with a 31.9% of 3-dB relative bandwidth at the centre frequency of 3.6GHz is fabricated and measured. The simulation and measurement results show that the TMDGSR has some advantages such as: simple compact triple-mode resonator structure and broadside coupling with feed lines easily, which are very useful in broadband DGS BPFs design.

責任著者(Corresponding author)

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