Volume 5, Issue 4 (December 2009)                   IJEEE 2009, 5(4): 230-233 | Back to browse issues page

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Abolhasani Z, Tayarani M. Spurious Response Suppression in Waveguide Filters using E-Shaped Chiral Resonators. IJEEE. 2009; 5 (4) :230-233
URL: http://ijeee.iust.ac.ir/article-1-217-en.html
Abstract:   (7282 Views)
In this paper, chiral E-shaped resonators are used in a waveguide. Direction of EM wave and position of resonators for effective excitation is studied and various resonances of E-shaped resonators are determined. As a consequence an analytical equivalent circuit model is proposed. Finally, an array of these resonators is used to realize a wide reject band. The resulted band stop filter performance is simulated and a rejection level of almost 40 dB is achieved to confirm the effectiveness of the idea. This stopband filter is used in cascade with a bandpass filter to suppress its spurious response.
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Subject: Microwave Passive Circuits
Received: 2009/12/12 | Accepted: 2013/12/30 | Published: 2013/12/30