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dc.contributor.authorChang, CYen_US
dc.contributor.authorYang, CCen_US
dc.date.accessioned2014-12-08T15:46:43Z-
dc.date.available2014-12-08T15:46:43Z-
dc.date.issued1999-04-01en_US
dc.identifier.issn0018-9480en_US
dc.identifier.urihttp://dx.doi.org/10.1109/22.754879en_US
dc.identifier.urihttp://hdl.handle.net/11536/31411-
dc.description.abstractA novel broad-band rat-race ring coupler with a unit element at each port and an ideal phase inverter at one of the ring arms is proposed and analyzed. Design equations based on Chebyshev equiripple functions are derived, The design curves of equal or unequal power division are also presented, Theoretical data show that the bandwidth of unequal power division with a specific return-loss value increases as the power division ratio increases or decreases from unity, For a 180 degrees hybrid with equal power division (3 dB) and 15-dB return loss, the proposed rat-race ring may have a bandwidth of 4:1. Three circuits of this novel rat-race ring are realized using finite-ground-plane coplanar waveguide. The measured results match very well with the theory.en_US
dc.language.isoen_USen_US
dc.subjectfinite-ground plane coplanar waveguideen_US
dc.subjectphase inverteren_US
dc.subjectuniplanar ring coupleren_US
dc.titleA novel broad-band Chebyshev-response rat-race ring coupleren_US
dc.typeArticleen_US
dc.identifier.doi10.1109/22.754879en_US
dc.identifier.journalIEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUESen_US
dc.citation.volume47en_US
dc.citation.issue4en_US
dc.citation.spage455en_US
dc.citation.epage462en_US
dc.contributor.department電信工程研究所zh_TW
dc.contributor.departmentInstitute of Communications Engineeringen_US
dc.identifier.wosnumberWOS:000079643000011-
dc.citation.woscount38-
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