A 3 to 5 GHz UWB SiGe HBT low noise amplifier for WPANS IEEE 802.15.3a standard. | [Information technology Journal • 2007]

Author(s):

1. Farid Touati: Department of Electrical and Computer Engineering, Sultan Qaboos University, Al-Khod, Muscat, Oman

2. Zia Nadir: Department of Electrical and Computer Engineering, Sultan Qaboos University, Al-Khod, Muscat, Oman

3. Mohammed Bait Suwailam: Department of Electrical and Computer Engineering, Sultan Qaboos University, Al-Khod, Muscat, Oman

4. Skandar Douss: Laboratories d’Electronique et des Technologies de I’ Information, National School of Engineering of Sfax, Sfax, Tunisia

5. Mourad Loulou: Laboratories d’Electronique et des Technologies de I’ Information, National School of Engineering of Sfax, Sfax, Tunisia

Abstract:

Ultra-Wideband Low-Noise Amplifiers (UWB LNA) operating in the low-frequency band (3.1-5 GHz) of UWB spectrum are presented. The designs consist of a cascode amplifier with wideband input matching techniques based on LC-ladder filters or shunt-feedback both combined with inductive peaking. Implemented with a SiGe HBT process, the LNAs give 18.0 dB gain, better than-20 dB input matching and a return loss less than-34 dB, while consuming 11 mW under 1.5 V supply. The feedback LNA gives a better flat noise figure of 2.5 dB and an input IP3 of-6 dB at 5 GHz.

Page(s): 579-583

DOI: DOI not available

Published: Journal: Information technology Journal, Volume: 6, Issue: 4, Year: 2007

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