Patent ID: 8027646
Filing Date: 2011-09-27
Classification: H04B

Abstract:
1. A communication system for filtering and attenuating a receive signal in between a bi-directional antenna system and a bi-directional base station system, the communication system comprising: a first circulator configured to receive the receive signal from a first bi-directional link coupled to the bi-directional antenna system and circulate the receive signal to a first uni-directional link; a signal processing system configured to receive the receive signal from the first uni-directional link, filter and attenuate the receive signal, and transfer the receive signal to a second uni-directional link; a second circulator configured to receive the receive signal from the second uni-directional link, circulate the receive signal to a second bi-directional link coupled to the bi-directional base station system, receive a transmit signal from the second bi-directional link, and circulate the transmit signal to a third uni-directional link; the first circulator configured to receive the transmit signal from the third uni-directional link and circulate the transmit signal to the first bi-directional link coupled to the bi-directional antenna system.