Title :
An Integrated Solution for Suppressing WLAN Signals in UWB Receivers
Author :
Bevilacqua, Andrea ; Maniero, Andrea ; Gerosa, Andrea ; Neviani, Andrea
Author_Institution :
Padova Univ., Padova
Abstract :
A fully integrated solution for rejecting the interference caused by wireless local area network transmissions in the 4.9-5.825-GHz band for ultra-wide-band (UWB) receivers is presented. Front-end prototypes implemented in a low cost 0.35-m SiGe BiCMOS technology are used as a test vehicle to assess the effectiveness of the presented approach. The proposed blocker filtering technique mitigates the gain desensitization, third-order intermodulation distortion and second-order intermodulation distortion by as much as 9.8, 7.9, and 6 dB, respectively. At a power consumption of only 49.2 mW, the receiver conversion gain ranges from 22-19 dB while the double side-band measured at the PCB connectors ranges from 5.5-8 dB in the 3.6-7.4-GHz frequency range.
Keywords :
BiCMOS integrated circuits; interference suppression; microwave receivers; notch filters; radio receivers; ultra wideband communication; wireless LAN; BiCMOS integrated circuit; PCB connector; SiGe - Binary; WLAN signals; bandwidth 4.9 GHz to 5.825 GHz; blocker filtering; frequency 3.6 GHz to 7.4 GHz; gain 22 dB to 19 dB; gain 5.5 dB to 8 dB; gain desensitization; interference suppression; intermodulation distortion; microwave receiver; notch filter; power 49.2 mW; power consumption; size 0.35 micron; ultrawide-band receiver; wireless local area network transmission; BiCMOS integrated circuits; Costs; Germanium silicon alloys; Interference; Intermodulation distortion; Prototypes; Silicon germanium; Testing; Ultra wideband technology; Wireless LAN; BiCMOS integrated circuits; interference suppression; microwave receivers; notch filters; ultra-wide-band (UWB) systems;
Journal_Title :
Circuits and Systems I: Regular Papers, IEEE Transactions on
DOI :
10.1109/TCSI.2007.902458
