Title :
RF performance and effect of calibration in smart antenna system
Author :
Lee, Dong Han ; Pyo, Cheol Sig
Author_Institution :
Radio Technol. Res. Group, ETRI, Daejon, South Korea
Abstract :
This work presents the RF performance and effect of phase and amplitude error calibration in a smart antenna system based on WCDMA. We focus on the design and implementation of the RF subsystem and suggest a phase and amplitude error calibration method for the smart antenna system. The RF subsystem consists of an 8-element array antenna, RF front-end, high power amplifier, RF transceiver, digital IF transceiver, and the digital calibration unit which can support switched and adaptive beamforming simultaneously. Experimental results are shown for RF performance and we propose phase and amplitude error calibration at the analog part which can mitigate the amount of DSP in the digital calibration unit.
Keywords :
3G mobile communication; UHF antennas; UHF power amplifiers; adaptive antenna arrays; array signal processing; calibration; digital radio; intermediate-frequency amplifiers; transceivers; 8-element array antenna; DSP; RF front end; RF performance; RF transceiver; WCDMA; adaptive beamforming; amplitude error; calibration effect; digital IF transceiver; digital calibration unit; high power amplifier; smart antenna system; switched beamforming; Adaptive arrays; Antenna arrays; Base stations; Calibration; Costs; Digital signal processing; Multiaccess communication; Phased arrays; Radio frequency; Transceivers;
Conference_Titel :
Vehicular Technology Conference, 2004. VTC 2004-Spring. 2004 IEEE 59th
Print_ISBN :
0-7803-8255-2
DOI :
10.1109/VETECS.2004.1387906
