DocumentCode :
2050567
Title :
Dual Band Tunable LNA for Flexible RF Front End
Author :
Ahsan, Naveed ; Ouacha, Aziz ; Dabrowski, Jerzy ; Samuelsson, Carl
Author_Institution :
Linkoping Univ., Linkoping
fYear :
2007
fDate :
8-11 Jan. 2007
Firstpage :
19
Lastpage :
22
Abstract :
This paper presents a dual band LNA that can be switched between two bands (2.4 GHz & 5.2 GHz) for IEEE 802.1 la/b/g WLAN applications. The LNA is also tunable within each band and the tuning is incorporated by on-chip varactors. The test chip consists of two fully integrated narrow-band tunable LNAs along with SPDT switch. For power saving one LNA can be switched off. The technology process is 0.2 mum GaAs offered by OMMIC. The LNA can achieve a relatively good performance over the two bands as demonstrated by simulation. With a 3V supply, the LNA has a gain of 26.2 dB at 2.4 GHz and 21.8 dB at 5.2 GHz and the corresponding NF varies between 2.07 dB and 1.84 dB, respectively. The LNA has an IIP3 of -7 dBm at 2.4 GHz and -1.6 dBm at 5.2 GHz.
Keywords :
circuit tuning; flexible electronics; gallium arsenide; low noise amplifiers; radiofrequency amplifiers; varactors; wireless LAN; IEEE 802.1 la/b/g WLAN application; OMMIC; SPDT switch; dual band tunable LNA; flexible RF front end; frequency 2.4 GHz; frequency 5.2 GHz; gain 21.8 dB; gain 26.2 dB; narrow-band LNA; on-chip varactors; size 0.2 mum; voltage 3 V; Dual band; Gain; Gallium arsenide; Narrowband; Noise measurement; Radio frequency; Switches; Testing; Varactors; Wireless LAN;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Applied Sciences & Technology, 2007. IBCAST 2007. International Bhurban Conference on
Conference_Location :
Islamabad
Print_ISBN :
978-969-8741-04-4
Electronic_ISBN :
978-969-8741-04-4
Type :
conf
DOI :
10.1109/IBCAST.2007.4379900
Filename :
4379900
Link To Document :
بازگشت