Surface-Mount Baluns Extend To 6 GHz

Feb. 15, 2013
A pair of balanced/unbalanced (balun) transformers provide frequency coverages from 500 kHz to 3 and 6 GHz, respectively.

A pair of broadband surface-mount balanced/unbalanced (balun) transformers from Marki Microwave provides frequency coverages to 3 and 6 GHz, respective. Model BAL-0003SM operates from 500 kHz to 3 GHz with 6-dB typical insertion loss and 180-deg. nominal phase shift. It features matched 50-Ω input and output ports with amplitude balance of typically ±0.3 dB and phase balance of typically ±3 deg. The balun has 35-dB common-mode rejection, with 9-dB typical isolation and 17-ps typical rise/fall time. Higher-frequency model BAL-0006SM exhibits 6-dB typical insertion loss from 500 kHz to 6 GHz with amplitude balance of typically ±0.4 dB and phase balance of typically ±3 deg. It achieves 35-dB common-mode rejection with9-dB typical isolation and 17-ps typical rise/fall time.

Marki Microwave, 215 Vineyard Ct., Morgan Hill, CA 95037; (408) 778-4200, FAX: (408) 778-4300, e-mail: [email protected], www.markimicrowave.com.

About the Author

Jack Browne | Technical Contributor

Jack Browne, Technical Contributor, has worked in technical publishing for over 30 years. He managed the content and production of three technical journals while at the American Institute of Physics, including Medical Physics and the Journal of Vacuum Science & Technology. He has been a Publisher and Editor for Penton Media, started the firm’s Wireless Symposium & Exhibition trade show in 1993, and currently serves as Technical Contributor for that company's Microwaves & RF magazine. Browne, who holds a BS in Mathematics from City College of New York and BA degrees in English and Philosophy from Fordham University, is a member of the IEEE.

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