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[1] Chen Zhenhua, Xu Jinping,. W-band sharp-rejection bandpass filter with notch cavities [J]. Journal of Southeast University (English Edition), 2013, 29 (1): 11-15. [doi:10.3969/j.issn.1003-7985.2013.01.003]
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W-band sharp-rejection bandpass filter with notch cavities()
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Journal of Southeast University (English Edition)[ISSN:1003-7985/CN:32-1325/N]

Volumn:
29
Issue:
2013 1
Page:
11-15
Research Field:
Electronic Science and Engineering
Publishing date:
2013-03-20

Info

Title:
W-band sharp-rejection bandpass filter with notch cavities
Author(s):
Chen Zhenhua Xu Jinping
State Key Laboratory of Millimeter Waves, Southeast University, Nanjing 210096, China
Keywords:
W-band E-plane filter sharp rejection notch filter
PACS:
TN713.5
DOI:
10.3969/j.issn.1003-7985.2013.01.003
Abstract:
High-Q notch cavities combined with a low-order E-plane fin-line filter are used for designing a sharp-rejection band-pass filter(BPF)at W-band. Based on the conventional E-plane fin-line structure, an E-plane extended cavity is implemented to enhance the suppression at unwanted frequency points near the passband. The passband performance is not disturbed and the whole structure remains simple to be assembled. To extend the suppression bandwidth, two separated notch cavities are designed and arranged at the input and output ends of the fin-line filter, respectively. A prototype BPF is fabricated and measured. Experimental results show that the minimum insertion loss is 2.7 dB over a passband of 1 GHz. The suppression is about 85 dB near 91.7 GHz, which is 2.2 GHz lower than the center frequency. Experimental results agree well with simulation.

References:

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Memo

Memo:
Biographies: Chen Zhenhua(1984—), male, graduate; Xu Jinping(corresponding author), male, doctor, professor, jpxu@seu.edu.cn.
Foundation item: The National Natural Science Foundation of China(No.60921063).
Citation: Chen Zhenhua, Xu Jinping. W-band sharp-rejection bandpass filter with notch cavities[J].Journal of Southeast University(English Edition), 2013, 29(1):11-15.[doi:10.3969/j.issn.1003-7985.2013.01.003]
Last Update: 2013-03-20