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Bias-T Design Considerations for the LWA

By Brian Hicks and Bill Erickson

Abstract

The strawman design document [1] for the LWA suggests that the Front End Electronics (FEE) could be powered through the use of a circuit known as a bias-T. We will discuss how a bias-T operates and present a low cost design optimized for performance within the LWA frequency range of 20 to 80 MHz. We highly recommend the use of bias-T based on discrete components incorporated directly into the LWA FEE and ARX subsystems. I

Year: 2008
OAI identifier: oai:CiteSeerX.psu:10.1.1.192.7336
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