NEW SMALL 90-DEGREES HYBRID COUPLER

Citation
Mh. Murgulescu et al., NEW SMALL 90-DEGREES HYBRID COUPLER, Electronics Letters, 30(16), 1994, pp. 1289-1290
Citations number
2
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
ISSN journal
00135194
Volume
30
Issue
16
Year of publication
1994
Pages
1289 - 1290
Database
ISI
SICI code
0013-5194(1994)30:16<1289:NS9HC>2.0.ZU;2-D
Abstract
The two classical 90-degrees couplers (Lange coupler and branch-line h ybrid) are not appropriate for frequencies around 1-5GHz. The small 90 -degrees coupler proposed by the authors is the implementation of the Wheatstone bridge in uniplanar transmission lines. It is dedicated to narrowband applications. The coupler is demonstrated at a centre frequ ency of 4GHz.