20-dB Coupler Serves LTE

Jan. 5, 2011

An application-specific 20-dB coupler has been developed by Response Microwave for use in Long-Term-Evolution (LTE) fourth-generation (4G) cellular distribution systems. The coupler operates from 800 to 5800 MHz with typical insertion loss of 0.3 dB and minimum directivity of 23 dB. The coupling flatness is within 1 dB of the 20-dB value and the maximum VSWR is 1.15:1. The rugged coupler can handle input power levels as high as 50 W CW and is equipped with SMA female connectors. It is supplied in a compact housing measuring 3.9 x 1.5 x 1.02 in. and can operate at temperatures from -35 to +80C.

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.