Referenced Items are not available for this document.
A new dual-band 90° coupler using coupled transmission lines is proposed in this paper. As the coupler consists of only three quarter-wave coupled-line sections, it occupies less circuit area as compared to other existing dual-band branch-line couplers. A desired dual-band operation can be achieved by proper design of the coupling level for those coupled-line sections. Moreover, the coupler's configuration contains a degree of freedom so that its design is “customizable,” allowing itself to be conveniently realized on a variety of circuit and substrate technologies. As a result, it is suitable for use in many practical applications.
Published in:
Microwave Theory and Techniques, IEEE Transactions on
(Volume:59
,
Issue:
9
)
Date of Publication: Sept. 2011
- Page(s):
- 2227 - 2232
- ISSN :
- 0018-9480
- INSPEC Accession Number:
- 12219076
- Digital Object Identifier :
- 10.1109/TMTT.2011.2160199
- Product Type:
- Journals & Magazines
- Date of Publication :
- 28 July 2011
- Date of Current Version :
- 12 September 2011
- Issue Date :
- Sept. 2011
- Sponsored by :
- IEEE Microwave Theory and Techniques Society
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