User Manual

Wireless Innovations Group
2601 Telecom Parkway
Richardson, Texas 75082
400/800 MHz Fiber Optic & RF Fed Bi-Directional
Amplifier Operations / Maintenance Manual
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Date
:06/16/2004
Page:
38 of 63
5.5 800 MHz High Isolation Duplexer (AE04A-D1438-001)
5.5.1 Description
The 800 MHz, high isolation duplexer provides the high bandpass selectivity and
isolation for the Uplink and the Downlink frequency. The duplexer is based on a
5-cavity cross-coupled bandpass filter design and is aligned carefully during
production to optimize the insertion loss, selectivity, and VSWR
The duplexer is a fully passive device and should have an extremely long trouble-
free working life and requires no maintenance. Should the duplexer be suspect of
failure, the entire duplexer module should be replaced.
5.5.2 Specification
PARAMETER SPECIFICATION
Frequency Range: Downlink
Uplink
866 – 869 MHz
821 – 824 MHz
Passband Insertion Loss 1 dB
Passband VSWR < 1.2:1
Impedance 50 Ohms
Power Handling 10 Watt
Downlink-To-Uplink Isolation > 96 dB @ Receive Port
Uplink-To-Downlink Isolation > 96 dB @ Transmit Port
Operating Temperature
-20
°
C to +60
°
C