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Browse Prior Art Database

TRANSMIT-RECEIVE SWITCH WITH SELECTABLE ANTENNA PORTS

IP.com Disclosure Number: IPCOM000005663D
Original Publication Date: 1987-Oct-01
Included in the Prior Art Database: 2001-Oct-24

Publishing Venue

Motorola

Related People

Authors:
Kai Siwiak

Abstract

A two PIN diode T/R switch is configured to switch either of two antennas between a transmitter and receiver. No PIN diode current is required when either antenna port is used in the receive mode. The circuit also provides more than 26 dB second harmonic attenuation across a 25% frequency bandwidth.