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A low noise dual-band cascaded LNA with notch filtering network for IEEE 802.11b/g/a/n wireless applications

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Title: A low noise dual-band cascaded LNA with notch filtering network for IEEE 802.11b/g/a/n wireless applications

Authors: Ahmad A., Othman A. R., Hamidon A. H., Pongot K.

Journal: ARPN Journal of Engineering and Applied Sciences

HEC Recognition History
Category From To
Y 2023-07-01 2024-09-30
Y 2022-07-01 2023-06-30
Y 2021-07-01 2022-06-30
X 2020-07-01 2021-06-30

Publisher: Khyber Medical College, Peshawar

Country: Pakistan

Year: 2016

Volume: 11

Issue: 5

Language: English

Categories
Electrical Engineering (5972) Wireless Communication (410) Low Noise Amplifiers (4) RF Engineering (43) Circuit Design (53)

Abstract

This paper presents the design of dual-band low noise amplifier (LNA) for WLAN IEEE 802.11b/g/a/n wireless applications. A new technique using a cascaded LNA, notch filter and T network impedance matching is proposed. A fully integrated dual band LNA was designed using GaAs pHEMT transistors to increase and improve the gain and noise figure (NF) effectively. The LNA was matched concurrently at the two frequency bands by matching the input and output networks without switching techniques. The post layout simulation shows the power gain |S21| of 33.845 dB and 20.000 dB and NF of 0.946 dB and 0.493 dB for center frequency of 2.4 GHz and 5.75 GHz. The supply voltage for LNA is 2V.

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