Compact tunable bandpass filter with wide tuning range using ring resonator and short‐ended coupled lines | Zendy

Zhu H. | Zendy; Abbosh A. | Zendy

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Compact tunable bandpass filter with wide tuning range using ring resonator and short‐ended coupled lines

Author(s) -

Zhu H.,

Abbosh A.

Publication year - 2015

Publication title -

electronics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.375

H-Index - 146

ISSN - 1350-911X

DOI - 10.1049/el.2015.0346

Subject(s) - band pass filter , resonator , ring (chemistry) , materials science , filter (signal processing) , electronic engineering , distributed element filter , range (aeronautics) , optoelectronics , filtering theory , prototype filter , acoustics , physics , electrical engineering , computer science , low pass filter , engineering , chemistry , organic chemistry , artificial intelligence , composite material

A tunable bandpass filter with wide tuning ranges for both the centre frequency and bandwidth is presented. The filter is based on using a ring resonator connected to a short‐ended coupled‐line structure. Two transmission zeros are generated in the upper stopband resulting in a sharp cutoff and harmonic suppression across a wide stopband. A thorough procedure is used to analyse the proposed filter. A prototype is fabricated and tested. The achieved results indicate a wide centre frequency and bandwidth tuning ranges of 0.52–1.42 GHz and 90–320 MHz, respectively.

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