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http://dx.doi.org/10.5573/ieie.2014.51.7.026

Design and Implementation of High Efficiency Transceiver Module for Active Phased Arrays System of IMT-Advanced  

Lee, Suk-Hui (Convergence Communication Components Research Center, Korea Electronics and Technology Institute)
Jang, Hong-Ju (Department of Electronics Engineering, Incheon National University)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.51, no.7, 2014 , pp. 26-36 More about this Journal
Abstract
The needs of active phased arrays antenna system is getting more increased for IMT-Advanced system efficiency. The active phased array structure consists of lots of small transceivers and radiation elements to increase system efficiency. The minimized module of high efficiency transceiver is key for system implementation. The power amplifier of transmitter decides efficiency of base-station. In this paper, we design and implement minimized module of high efficiency transceiver for IMT-Advanced active phased array system. The temperature compensation circuit of transceiver reduces gain error and the analog pre-distorter of linearizer reduces implemented size. For minimal size and high efficiency, the implented power amplifier consist of GaN MMIC Doherty structure. The size of implemented module is $40mm{\times}90mm{\times}50mm$ and output power is 47.65 dBm at LTE band 7. The efficiency of power amplifier is 40.7% efficiency and ACLR compensation of linearizer is above 12dB at operating power level, 37dBm. The noise figure of transceiver is under 1.28 dB and amplitude error and phase error on 6 bit control is 0.38 dB and 2.77 degree respectively.
Keywords
IMT-Advanced; Active phased arrays; Efficiency; Transceiver;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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