A low-power 2.4-GHz receiver front-end for wireless sensor networks
Journal
Microwave and Optical Technology Letters
Journal Volume
51
Journal Issue
12
Pages
3021-3024
Date Issued
2009
Author(s)
Abstract
Abstract A low‐power 2.4‐GHz SiGe HBT receiver front‐end for wireless sensor networks utilizing current‐ reuse technique is reported for the first time. The proposed receiver comprises the low‐noise amplifier (LNA), the passive mixer, and the intermediate frequency (IF) amplifier. To reduce the power consumption, the dc bias current of the IF amplifier is reused by the LNA. The receiver front‐end dissipated 13.8 mW, and achieved input return loss ( S 11 ) of −22 dB, conversion voltage gain of 34 dB, noise figure of 6.3 dB, and input third‐order intermodulation point (IIP3) of −21 dBm at IF of 1 MHz. © 2009 Wiley Periodicals, Inc. Microwave Opt Technol Lett 51: 3021–3024, 2009; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.24812
SDGs
Type
journal article