Title :
ISO-less, SAW-less open-loop polar modulation transceiver for 3G/GSM/EDGE multi-mode/multi-band handset
Author :
Tsukizawa, Takayuki ; Nakamura, Maki ; Do, Gary ; Igarashi, Masatoshi ; Ishida, Kaoru
Author_Institution :
Commun. Core Devices Dev. Center, Panasonic Corp., Yokohama, Japan
Abstract :
In this paper, a new 3G/GSM/EDGE multi-mode/multi-band transceiver that achieves both the elimination of TX-SAW filter and the isolator using an open-loop polar modulation transmitter is presented. Sufficient ACLR performance is accomplished by a combination of parts-to-parts calibration and temperature offset compensation. ACLR meets 3GPP target specification at VSWR=3:1, with Rx band noise at PA output in UMTS band I of -132.3 dBm/Hz thus does not degrade receiver sensitivity. This paper includes design details and experimental results.
Keywords :
3G mobile communication; calibration; modulation; surface acoustic wave filters; transceivers; 3G-GSM-EDGE multimode-multiband handset; 3GPP target specification; ISO-less SAW-less open-loop polar modulation transceiver; TX-SAW filter; loss 132.3 dB; open-loop polar modulation transmitter; parts-to-parts calibration; temperature offset compensation; 3G mobile communication; Calibration; Degradation; Filters; GSM; Isolators; Telephone sets; Temperature sensors; Transceivers; Transmitters; GSM; ISO-less; Open-loop polar modulation; SAW-less; UMTS; mobile phone; multi-mode;
Conference_Titel :
Microwave Symposium Digest (MTT), 2010 IEEE MTT-S International
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4244-6056-4
Electronic_ISBN :
0149-645X
DOI :
10.1109/MWSYM.2010.5516707
