A wideband multi-stage inverter-based driver amplifier for IEEE 802.22 WRAN transmitters

Author

Geng-Zhen Qi ; Ka-Fai Un ; Wei-Han Yu ; Pui-In Mak ; Martins, Rui P.

Author_Institution

State-Key Lab. of Analog & Mixed-Signal VLSI & FST-ECE, Univ. of Macau, Macao, China

fYear

2013

fDate

26-28 Aug. 2013

Firstpage

6

Lastpage

9

Abstract

This paper proposes a wideband multi-stage inverter-based driver amplifier (DA) suitable for IEEE 802.22 wireless regional area network (WRAN) transmitters. In order to optimize the voltage gain, power, linearity and load drivability, the DA employs two cascaded inverters followed by a source follower, in which the second inverter employs resistive feedback and an inverter-based active load to achieve linearization. Simulated in 65 nm CMOS, the achieved voltage gain is 17.6 dB and the power is 14.6 mW at 1.2 V. The -3 dB bandwidth is 5.6 MHz to 2.17 GHz. For a 3^rd-order intermodulation distortion (IMD3) of -45 dBc, the output power reaches -7.3 dBm.

Keywords

CMOS analogue integrated circuits; UHF amplifiers; UHF integrated circuits; driver circuits; logic gates; radio networks; radio transmitters; wideband amplifiers; 3rd-order intermodulation distortion; CMOS process; DA; IEEE 802.22 WRAN transmitters; IMD3; cascaded inverters; frequency 5.6 MHz to 2.17 GHz; gain 17.6 dB; inverter-based active load; power 14.6 mW; resistive feedback; second inverter; size 65 nm; source follower; voltage 1.2 V; wideband multistage inverter-based driver amplifier; wireless regional area network; Gain; Inverters; Linearity; Power amplifiers; Power generation; Radio transmitters; Wideband; DA; IMD3; WRAN transmitters; inverter-based; linearity; sweet spot; wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Quality Electronic Design (ASQED), 2013 5th Asia Symposium on

Conference_Location

Penang

Print_ISBN

978-1-4799-1312-1

Type

conf

DOI

10.1109/ASQED.2013.6643554

Filename

6643554