Bias Tees Power 10 MHz to 40 GHz

July 7, 2015
A line of bias tees features low loss and current-carrying capabilities to 7 A through 40 GHz.

A line of bias tees introduced at the recent IEEE International Microwave Symposium (IMS) event includes units covering a total frequency range of 10 MHz to 40 GHz. Suitable for biasing active components and systems, bias tees in the BTHC series cover 500 MHz to 4 GHz, with bias tees in the BTS series spanning 10 MHz to 18 GHz, and in the BTHF series operating from 10 MHz to 40 GHz. The high-current BTHC series can handle current levels to 7 A. The bias tees, which are available as RoHS-compliant components, are matched to 50 Ω and designed for use at operating temperatures from –55 to +100°C. For example, model BTHF-40G operates from 10 MHz to 40 GHz with typical insertion loss of 1.5 dB. Minimum return loss is 12 dB with minimum VSWR of 1.70:1. The bias tee provides minimum dc port isolation of 25 dB and handles 250-mA maximum dc current. In contrast, model BTHC-4G operates from 500 to 4000 MHz with 0.7-dB typical insertion loss and 15-dB minimum return loss. It exhibits maximum VSWR of 1.50:1 with 25-dB minimum bias port isolation and can handle 7-A current. Most units are supplied with SMA connectors.

TTE Filters LLC, 11652 West Olympic Blvd., Los Angeles, CA 90064; (310) 478-8224

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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