A 1.55mW mixed-signal integrating mixer for direct spectrum estimation in 0.13μm CMOS

Author

Banovic, Kevin ; Carusone, Anthony Chan

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Toronto, Toronto, ON, Canada

fYear

2012

fDate

12-14 Nov. 2012

Firstpage

89

Lastpage

92

Abstract

A low power integrating mixer prototype chip for direct spectrum estimation is fabricated for opportunistic spectrum access, interference detection and built-in test applications. The integrating mixer consists of a folded architecture that combines mixing, current-domain windowing, and integration to implement the short-time Fourier transform (STFT). The design operates over a frequency range of 0.05-3GHz, consumes 1.55mW from a 1.2V supply and obtains a dynamic range (DR) of 24dB.

Keywords

CMOS integrated circuits; Fourier transforms; UHF integrated circuits; UHF mixers; VHF circuits; built-in self test; integrated circuit design; integrated circuit testing; interference; low-power electronics; microwave integrated circuits; microwave mixers; mixed analogue-digital integrated circuits; CMOS technology; STFT; built-in test application; current-domain windowing; direct spectrum estimation; folded architecture; frequency 0.05 GHz to 3 GHz; gain 24 dB; interference detection; low power integrating mixer prototype chip; mixed-signal integrating mixer; opportunistic spectrum access fabrication; power 1.55 mW; short-time Fourier transform; size 0.13 mum; voltage 1.2 V;

fLanguage

English

Publisher

ieee

Conference_Titel

Solid State Circuits Conference (A-SSCC), 2012 IEEE Asian

Conference_Location

Kobe

Type

conf

DOI

10.1109/IPEC.2012.6522634

Filename

6522634