Title :
Low power consumption 2.4 GHz WLAN front-end module for a multiple radio handset
Author :
Huang, Chun-Wen Paul ; Vaillancourt, William ; Parolin, Andrew ; Zelley, Chris
Author_Institution :
SiGe Semicond., Methuen, MA, USA
Abstract :
A compact 5×6×1.4 mm3 2.4 GHz wireless LAN (WLAN) front-end module (FEM) is presented. The FEM features low power consumption of 145 mA for 18 dBm output with 3% EVM at 54 Mbps transmissions, <-170 dBm/Hz noise emission up to 2 GHz, and high out-of-band interference suppression, able to support a multi-radio handset with simultaneous operations. The FEM has a 30 dB in-band gain, >24 dB transmit/receive (T/R) isolation under 10:1 mismatch, an integrated regulator, and a temperature compensated power detector. All these unique features provide an easiest integration of a WLAN radio into a multi-radio handset.
Keywords :
UHF power amplifiers; cellular radio; compensation; interference suppression; low-power electronics; mobile handsets; transceivers; voltage regulators; wireless LAN; 1.4 mm; 145 mA; 2.4 GHz; 30 dB; 5 mm; 54 Mbit/s; 6 mm; WLAN front-end; cellular phones; high out-of-band interference suppression; integrated regulator; low power front-end module; power amplifier; simultaneous operation multiple radio handset; temperature compensated power detector; transmit/receive isolation; transmit/receive switch; Antennas and propagation; Cellular phones; Energy consumption; Germanium silicon alloys; Regulators; Semiconductor device noise; Silicon germanium; Switches; Telephone sets; Wireless LAN;
Conference_Titel :
Radio Frequency integrated Circuits (RFIC) Symposium, 2005. Digest of Papers. 2005 IEEE
Print_ISBN :
0-7803-8983-2
DOI :
10.1109/RFIC.2005.1489628
