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dc.contributor.authorChen, Tse-Yuen_US
dc.contributor.authorChi, Pei-Lingen_US
dc.contributor.authorLin, Ting-Tsanen_US
dc.date.accessioned2014-12-08T15:34:49Z-
dc.date.available2014-12-08T15:34:49Z-
dc.date.issued2013en_US
dc.identifier.isbn978-1-4799-1472-2en_US
dc.identifier.urihttp://hdl.handle.net/11536/23705-
dc.description.abstractA miniaturized branch-line coupler that is able to operate at two arbitrary frequencies is presented in this paper. The dual-band frequency ratio depends on the coupling coefficient in the proposed transmission line element. It will be shown later that the dual-band separation decreases as the coupling strength increases. By replacing the traditional quarter-wavelength lines with the proposed artificial transmission lines of a prescribed coupling coefficient, a size-reduced branch-line coupler can be implemented at dual frequencies of interest. An example of the 0.9-and 1.8-GHz branch-line coupler, which corresponds to a band ratio of 2, is experimentally developed and characterized. The presented coupler occupies only 44% footprint of the conventional coupler operating at the lower frequency of the dual-band operation. Excellent agreement between the simulated and measured results is obtained.en_US
dc.language.isoen_USen_US
dc.subjectBranch-line coupleren_US
dc.subjectcoupled lineen_US
dc.subjectdual-banden_US
dc.titleMiniaturized Branch-Line Coupler with Coupling-Dependent Dual-Frequency Operationen_US
dc.typeProceedings Paperen_US
dc.identifier.journal2013 ASIA-PACIFIC MICROWAVE CONFERENCE PROCEEDINGS (APMC 2013)en_US
dc.citation.spage360en_US
dc.citation.epage362en_US
dc.contributor.department資訊工程學系zh_TW
dc.contributor.departmentDepartment of Computer Scienceen_US
dc.identifier.wosnumberWOS:000330851900116-
Appears in Collections:Conferences Paper