Summary
International Technical Conference on Circuits/Systems, Computers and Communications
2008
Session Number:H6
Session:
Number:H6-5
Minimization of Power Consumption for the Monitoring of Mobile-WiMAX Service Coverage in DBDM Handsets
Changmin Lee, Youngcheol Park,
pp.-
Publication Date:2008/7/7
Online ISSN:2188-5079
Summary:
This paper presents a wideband active detector to scan the mobile WiMAX(mWiMAX) service area when a mWiMAX+cellular DBDM terminal is out of the mWiMAX coverage. The device, which consists of a wideband LNA and an envelope detector to minimize the power consumption for the scanning of signal existence, is designed to detect 10MHz of mWiMAX signal at 2.35GHz with the gain of 10~11dB. Measurement result shows 30~60mW of power consumption over the input power of -50 dBm~ 0 dBm, which is significantly lower power consumption compared to the case of conventional reception with full demodulation of mWiMAX signal.