Referenced Items are not available for this document.
In a recent paper, [see ibid., vol. 42, p. 1437-42, 1994], Bialkowski and Jellett discussed the design of a broadband 3-dB quadrature hybrid. This hybrid is comprised of 4-port microstrip disc. It appears that the authors were able to increase the operational bandwidth of the circular disc 4-dB quadrature coupler to about 20%. Open and short-circuited stubs were introduced to the periphery of the coupler in order to realize a broader bandwidth. This technique was applied previously by Riblet [1980] and Ohta [1989] on planar components and broader operational bandwidth was realized. In addition to listing a few corrections, the author responds to some inaccurate statements made in the original article by offering some comments. The original authors reply to these comments.<
Published in:
Microwave Theory and Techniques, IEEE Transactions on
(Volume:43
,
Issue:
1
)
Date of Publication: Jan. 1995
- Page(s):
- 239 - 240
- ISSN :
- 0018-9480
- INSPEC Accession Number:
- 4860803
- Digital Object Identifier :
- 10.1109/22.362979
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 August 2002
- Issue Date :
- Jan. 1995
- Sponsored by :
- IEEE Microwave Theory and Techniques Society
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