Dual Band Tunable LNA for Flexible RF Front End
2007 (English)In: Proceedings of the IEEE International Bhurban Conference on Applied Sciences & Technology (IBCAST 2007), January 8-11, 2007, Islamabad, Pakistan, IEEE Explore , 2007, 19-22 p.Conference paper (Refereed)
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.
Place, publisher, year, edition, pages
IEEE Explore , 2007. 19-22 p.
Circuit tuning, flexible electronics, gallium arsenide, low noise amplifiers, radiofrequency amplifiers, varactors, wireless LAN
IdentifiersURN: urn:nbn:se:liu:diva-14860DOI: 10.1109/IBCAST.2007.4379900ISBN: 978-969-8741-04-4OAI: oai:DiVA.org:liu-14860DiVA: diva2:25371