Towards RF analog IC realization of wave-discrete filters on 65nm CMOS

Author

Rajapaksha, Nilanka ; Madanayake, Arjuna ; Lee, Kye-Shin ; Edirisuriya, Amila ; Bruton, Len ; Belostotski, Leonid ; Xu, Yongsheng

fYear

2012

fDate

14-17 Nov. 2012

Firstpage

1

Lastpage

5

Abstract

A method is proposed for realizing analog active filters at microwave frequencies that avoids the use of spiral inductors and that can be used in the front-end of radio receivers. The proposed analog filters are based on doubly (resistively) terminated, passive, LC-ladder prototypes and wave-digital filter structures. It is expected that the proposed “wave-discrete” filters will carry to the analog domain the excellent sensitivity and stability properties of the wave-digital filters and have low sensitivity to process, voltage and temperature variations. A building block circuit is simulated in Cadence SPICE with BSIM4 models as proof of concept in 65nm CMOS process and frequency response, time domain response and IIP3 results are given. The simulation serves as an encouraging proof-of-concept towards future RF realization of wave-discrete analog IC filters for RF-FPGA, software defined, cognitive, and reconfigurable radio front-ends.

Keywords

CMOS analogue integrated circuits; active filters; field effect MMIC; frequency response; ladder filters; microwave filters; wave digital filters; BSIM4 models; CMOS process; Cadence SPICE; RF analog IC realization; RF-FPGA; analog active filters; cognitive radio front-ends; doubly passive LC-ladder prototypes; frequency response; radio receivers; reconfigurable radio front-ends; size 65 nm; software defined radio front-ends; spiral inductors; time-domain response; wave-digital filter structures; wave-discrete analog IC filters; Adaptation models; CMOS integrated circuits; Inductors; Prototypes; SPICE; Semiconductor device modeling; Sensitivity;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical & Electronics Engineers in Israel (IEEEI), 2012 IEEE 27th Convention of

Conference_Location

Eilat

Print_ISBN

978-1-4673-4682-5

Type

conf

DOI

10.1109/EEEI.2012.6377052

Filename

6377052