User's Manual

Table Of Contents
INTRODUCTION
Confidential, Proprietary Information
Title: PolBEAMER PCS (3.2) Array System-
Assembly and Operation Manual
Doc. No.:
913000801
Rev.: 01
Page: 11 of 91
MSB Most Significant Bit
MTBF Mean Time Between Failures
MTTR Mean Time To Repair
PCB Printed Circuit Board
PCS Personal Communications Services
RF Radio Frequency
RFI Radio Frequency Interference
Rx Receiver
TBD To Be Defined
TDMA Time Division Multiple Access
Tx Transmitter
VSWR Voltage Standing Wave Ratio
1.2. BEAMER® Array System Overview
The BEAMER® is an integrated active antenna for wireless communications. It incorporates
a transmission amplifier, transmission band filter, transmission elemental antenna, and the
respective receive chain: elemental antenna, band filter, and LNA.
The Tx amplifier is linearized. The Rx amplifier has an exceptional linear dynamic range. The
integral unit contains its own power conditioner and a monitoring and control circuit that
communicates with the BTS. The whole unit is sealed and built as a plug-in replaceable unit.
The design and production techniques offer low price and high reliability.
The BEAMER® replaces the PA in the BTS. It circumvents the loss in the transmit chain -
duplexer, cable, antenna corporate feed or beam forming network – which typically amounts
to 4 to 8 dB. A column of 4 to 8 BEAMER® units replaces the sector antenna. The reliability
and the redundancy in the array offer a major gain in life-cycle cost.