Design and simulation of an improved wideband low noise amplifier with an active balun
Design and simulation of an improved wideband low noise amplifier with an active balun
- Author(s): Shengjie Yuan ; Jixiang Zhao ; Yunfeng Li
- DOI: 10.1049/cp.2012.1095
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- Author(s): Shengjie Yuan ; Jixiang Zhao ; Yunfeng Li Source: International Conference on Automatic Control and Artificial Intelligence (ACAI 2012), 2012 p. 786 – 789
- Conference: International Conference on Automatic Control and Artificial Intelligence (ACAI 2012)
- DOI: 10.1049/cp.2012.1095
- ISBN: 978-1-84919-537-9
- Location: Xiamen, China
- Conference date: 3-5 March 2012
- Format: PDF
This paper presents the design and simulation of a improved CMOS wideband 1-6Ghz low noise amplifier (LNA). The LNA can be suitable for several different kinds of standard receivers, including Global Position System, wireless local area network, Bluetooth and ZigBee. An active balun is added to the differential amplifier. The active balun can transform the signal received form the antenna or fitter into differential signal. The transformation reduces the number of matching network. The circuit of LNA is designed and then simulated with TSMC 0.18μm technology, and the simulation results illustrate that this proposed LNA achieves a good gain with suitable noise figure, input and output loss which gives a maximum gain of 14dB in the bandwidth with 4 dB noise figure.
Inspec keywords: MMIC amplifiers; low noise amplifiers; wideband amplifiers; baluns; UHF integrated circuits; field effect MMIC; differential amplifiers; UHF amplifiers; CMOS analogue integrated circuits
Subjects: Analogue circuit design, modelling and testing; Amplifiers; CMOS integrated circuits; Microwave integrated circuits; Waveguide and microwave transmission line components
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