An integrated RF balanced-filter with enhanced rejection characteristics
Refereed conference paper presented and published in conference proceedings


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AbstractIn this paper, a new and simple 2.4-GIIz third-order integrated RF balanced-filter for LTCC-based applications is proposed. This device is derived from the basic center-tapped transformer circuit and works as a balun as well as a bandpass filter at the same time. According to the center-tapped transformer representation, three coupled resonant tanks are used to perform the balun-type operation. Thus, with only minor modifications, a balun having specific bandpass filtering characteristics can be designed by the use of traditional coupled-resonator filter theory. In our case, a third-order Chebyshev filtering; balun is designed and implemented. Furthermore, a transmission zero at 1.9-GHz is introduced to its transmission response by means of the extracted-pole technique. Experimental measurements show good agreement with computer simulations.
All Author(s) ListYeung LK, Wu KL
Name of ConferenceIEEE MTT-S International Microwave Symposium
Start Date of Conference11/06/2005
End Date of Conference17/06/2005
Place of ConferenceLong Beach
Country/Region of ConferenceUnited States of America
Year2005
Month1
Day1
PublisherIEEE
Pages713 - 716
ISBN0-7803-8845-3
ISSN0149-645X
LanguagesEnglish-United Kingdom
Keywordsbaluns; bandpass filters; LTCC; resonator filters
Web of Science Subject CategoriesEngineering; Engineering, Electrical & Electronic; Telecommunications

Last updated on 2020-24-11 at 00:50