A WiMedia UWB receiver with a synthesizer

Author

Kaltiokallio, Mikko ; Saari, Ville ; Rapinoja, Tapio ; Stadius, Kari ; Ryynänen, Jussi ; Lindfors, Saska ; Halonen, Kari

Author_Institution

Dept. of Micro & Nano Sci., Helsinki Univ. of Technol., Espoo

fYear

2008

fDate

15-19 Sept. 2008

Firstpage

330

Lastpage

333

Abstract

This paper describes a direct-conversion receiver for WiMedia UWB applications. The receiver consists of separate BG1 and BG3 LNAs including a 2.4-GHz notch filter, quadrature mixers, a base-band gm-C low-pass filter with variable gain, and a fast-hopping synthesizer. The UWB receiver is targeted for a mobile handset and therefore special emphasis has been placed on the reduction of interferers. The receiver achieves 60-dB gain, noise figure less than 6.2 dB, LO settling time of less than 3 ns and DC current consumption of 137 mA from a 1.2-V supply for BG1 operation mode. The chip was fabricated using 65-nm standard CMOS process.

Keywords

CMOS integrated circuits; UHF filters; low noise amplifiers; low-pass filters; mixers (circuits); mobile handsets; notch filters; radio receivers; ultra wideband communication; BG1 operation mode; LNA; WiMedia UWB receiver; base-band gm-C low-pass filter; current 137 mA; direct-conversion receiver; fast-hopping synthesizer; frequency 2.4 GHz; gain 60 dB; mobile handset; notch filter; quadrature mixers; size 65 nm; standard CMOS process; voltage 1.2 V; CMOS process; Circuit testing; Interference; Low pass filters; Mobile communication; Paper technology; Phase locked loops; Radio frequency; Synthesizers; Ultra wideband technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid-State Circuits Conference, 2008. ESSCIRC 2008. 34th European

Conference_Location

Edinburgh

ISSN

1930-8833

Print_ISBN

978-1-4244-2361-3

Electronic_ISBN

1930-8833

Type

conf

DOI

10.1109/ESSCIRC.2008.4681859

Filename

4681859