Broadband double-balanced diode mixer using a Marchand balun with vertical coupling structure

In this article, a broadband double‐balanced mixer is presented using a wideband Marchand balun implementation by vertical coupler. Frequency is selected as 1.0–3.7 GHz for radio frequency (RF), 1.14–3.84 GHz for LO, and 140 MHz for IF signals. When LO signal with 7 dBm at 2.64 GHz is injected, a co...

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Bibliographic Details
Published inMicrowave and optical technology letters Vol. 51; no. 8; pp. 1811 - 1814
Main Authors Nam, Hee, Lee, Myeong-Gil, Yun, Tae-Soon, Lee, Jong-Chul
Format Journal Article
LanguageEnglish
Published Hoboken Wiley Subscription Services, Inc., A Wiley Company 01.08.2009
Subjects
broadband balanced mixer
conversion loss
isolation
vertical coupler
wideband Marchand balun
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Summary:In this article, a broadband double‐balanced mixer is presented using a wideband Marchand balun implementation by vertical coupler. Frequency is selected as 1.0–3.7 GHz for radio frequency (RF), 1.14–3.84 GHz for LO, and 140 MHz for IF signals. When LO signal with 7 dBm at 2.64 GHz is injected, a conversion loss of 7.5 dB, and RF to LO isolation of −45 dB are obtained. Also, an average conversion loss of 9 dB, and RF to LO isolation of −25 dB are obtained for frequency band of 1.0–3.7 GHz. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 1811–1814, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24488
Bibliography:ark:/67375/WNG-DJRD89PG-B
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ArticleID:MOP24488
ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.24488