A Q-enhanced Transformer Coupling Dynamic Dual-Mode 5GHz Bandpass NB / Interference Rejection UWB Filter

Author

Pham, B. ; Dinh, A.

Author_Institution

Saskatchewan Univ., Saskatoon

fYear

2007

fDate

16-19 Sept. 2007

Firstpage

687

Lastpage

690

Abstract

This paper presents a fully integrated dual mode Q-enhanced bandpass/notch filter front-end designed for narrowband and UWB receivers. Using a simple logic state to switch its function, the filter can provide bandpass filtering for channel selection in the NB mode or NB interference rejection in the UWB mode. A Q-enhanced circuit coupled through a transformer is used to realize the modes. Using 1.8 V supply, the filter consumes 22 mW of power and provides a 32 dB interference rejection in the UWB mode and a gain of 24 dB in the NB mode. The design occupies a die area of 1 mm² using the mainstream 0.18 mum CMOS process.

Keywords

CMOS integrated circuits; band-pass filters; interference suppression; notch filters; radio receivers; ultra wideband communication; wireless channels; CMOS process; Q-enhanced transformer coupling dynamic dual-mode filter; UWB filter; UWB receivers; bandpass NB filter; channel selection; frequency 5 GHz; gain 24 dB; interference rejection; narrowband filter; noise figure 32 dB; notch filter; voltage 1.8 V; Band pass filters; CMOS process; Coupling circuits; Filtering; Gain; Interference; Logic; Narrowband; Niobium; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Custom Integrated Circuits Conference, 2007. CICC '07. IEEE

Conference_Location

San Jose, CA

Print_ISBN

978-1-4244-1623-3

Electronic_ISBN

978-1-4244-1623-3

Type

conf

DOI

10.1109/CICC.2007.4405825

Filename

4405825