A dual mode dielectric resonator and its design to bandpass filter

You, Bin; Ji, Wusheng; Wang, Xuedong; Li, Ying

doi:10.1007/s11741-003-0057-0

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2010

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“…Dualmode narrow band BPF using dual-mode loop resonator was proposed by Wolff [1] early in 1972. In recent years, much research in dual-mode loop resonator for BPF has been done, to achieve higher performance and miniaturization [2][3][4][5][6][7][8]. A dual-mode BPF using square loop resonator with spurious response suppression at high frequencies was proposed in [2].…”

Section: Introductionmentioning

confidence: 99%

A compact dual-mode BPF base on interdigital structure

Liu

Guo

et al. 2010

2010 International Conference on Microwave and Millimeter Wave Technology

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Based on shorten wavelength effect and lowpass characteristic of interdigital structure, a compact dual-mode narrow band BPF (band-pass filter) is proposed in the paper. This filter combines interdigital structure with conventional dual-mode BPF, and takes full advantage of the blank center of conventional dual-mode loop resonator. The shorten wavelength effect and low-pass characteristic of interdigital structure is analyzed first of all, and then a structure of dual-mode narrow band BPF using interdigital structure is proposed, followed by simulation and optimization. At last, the novel filter is fabricated and the measurement results show that the proposed filter has favorable application value due to its compact size and good performance.

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