Compact dual-mode dual-band bandpass filter with wide stopband for WLAN applications
A compact dual-mode dual-band bandpass filter (BPF) for WLAN applications is presented. On the basis of a primary passband formed by a ring resonator, a second passband is introduced by taking advantage of its tightly coupled input and output structures. Therefore, a dual-band performance is achieve...
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Published in | Electronics letters Vol. 51; no. 17; pp. 1372 - 1374 |
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Main Authors | , , , |
Format | Journal Article |
Language | English |
Published |
The Institution of Engineering and Technology
20.08.2015
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Subjects | |
Online Access | Get full text |
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Summary: | A compact dual-mode dual-band bandpass filter (BPF) for WLAN applications is presented. On the basis of a primary passband formed by a ring resonator, a second passband is introduced by taking advantage of its tightly coupled input and output structures. Therefore, a dual-band performance is achieved without increasing the overall circuit size. Shorting vias and spurlines are adopted separately to realise the dual-mode excitation of each passband. Finally, a compact dual-mode BPF centred at 2.4 and 5.2 GHz is designed and fabricated, along with four transmission zeros, leading to sharp skirts and a wide stopband. Experimental results reveal good agreement with simulation results. |
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Bibliography: | ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23 |
ISSN: | 0013-5194 1350-911X 1350-911X |
DOI: | 10.1049/el.2015.1913 |