High gain, low noise Cascode LNA using T-matching network for wireless applications

2012 ◽  
Author(s):  
A. R. Othman ◽  
A. B. Ibrahim ◽  
M. N. Husain ◽  
M. T. Ahmad ◽  
M. Senon
Keyword(s):  
High Gain ◽  
Low Noise ◽  
Matching Network ◽  
Wireless Applications

Inductive Feedback Technique for Design of High Gain 0.18μm CMOS LNA for 5G Applications

2021 ◽  
pp. 2150236
Author(s):  
Anjana Jyothi Banu ◽  
G. Kavya ◽  
D. Jahnavi
Keyword(s):  
Reflection Coefficient ◽  
Noise Figure ◽  
Cmos Technology ◽  
High Gain ◽  
Low Noise ◽  
Common Source ◽  
Matching Network ◽  
Input Matching ◽  
Cmos Lna ◽  
Noise Amplifier

A 26[Formula: see text]GHz low-noise amplifier (LNA) designed for 5G applications using 0.18[Formula: see text][Formula: see text]m CMOS technology is proposed in this paper. The circuit includes a common-source in the first stage to suppress the noise in the amplifier. The successive stage has a Cascode topology along with an inductive feedback to improve the power gain. The input matching network is designed to achieve the input reflection coefficient less than [Formula: see text]7dB at the intended frequency. The matching network at the output is designed using inductor–capacitor (LC) components connected in parallel to attain the output reflection coefficient of [Formula: see text]10[Formula: see text]dB. Due to the inductor added in feedback at the second stage. The [Formula: see text] obtained is 18.208[Formula: see text]dB at 26[Formula: see text]GHz with a noise figure (NF) of 2.8[Formula: see text]dB. The power supply given to the LNA is 1.8[Formula: see text]V. The simulation and layout of the presented circuit are performed using Cadence Virtuoso software.

Concurrent Multi-Band Low-Noise Amplifier

2017 ◽  
Vol 26 (06) ◽  
pp. 1750104 ◽  
Author(s):  
Ramya ◽  
T. Rama Rao ◽  
Revathi Venkataraman
Keyword(s):  
Noise Figure ◽  
Transformation Method ◽  
High Gain ◽  
Wide Frequency Range ◽  
Low Noise ◽  
Low Noise Amplifier ◽  
Vehicular Communication ◽  
Matching Network ◽  
Noise Amplifier ◽  
Multi Band

With rapid expansions of wireless communications, requirements for transceivers that support concurrent multiple services are continuously increasing and demanding design of a concurrent low-noise amplifier (LNA) with low noise figure (NF), high gain, and high linearity over a wide frequency range for various wireless applications. The proposed work focuses on a concurrent multi-band LNA that works at navigational frequencies, namely, of 1.2[Formula: see text]GHz and 1.5[Formula: see text]GHz, wireless communication frequencies, namely, of 2.45[Formula: see text]GHz and 3.3[Formula: see text]GHz, dedicated short range communication (DSRC) frequency of 5.8[Formula: see text]GHz for the vehicular communication applications. This circuit has a distinct input matching network which resonates at all desired five frequency bands and is achieved by adapting frequency transformation method. To accomplish simultaneous reception of the desired penta-band, the output matching is designed with simple LC matching network with the aid of load-pull methodology.

scholarly journals Design and implementation of a broad-band high gain low noise amplifier for 3G/4G applications

2021 ◽  
Vol 23 (2) ◽  
pp. 725
Author(s):  
Ahmed M. Abdelmonem ◽  
Ahmed S. I. Amar ◽  
Amir Almslmany ◽  
Ibrahim L. Abdalla ◽  
Fathi A. Farag
Keyword(s):  
Noise Figure ◽  
Supply Voltage ◽  
Low Cost ◽  
Broad Band ◽  
High Gain ◽  
Low Noise ◽  
Low Noise Amplifier ◽  
Design System ◽  
Matching Network ◽  
Noise Amplifier

The main aim of the paper is designing and implementing a broadband low-noise-amplifier (LNA) based on compensated matching network techniquein order to get high stable gain, low noise figure, low cost and smaller sizefor 3G/4G communication system applications at 2 GHz with bandwidth 600MHz. The Advanced Design System simulates the proposed circuit (ADS).The implementation was done with a class A bias circuit and a low noise transistor BFU 730F with a lower Noise Figure (NFmin) 0.62 dB. Collectorcurrent is measured to be 5.8mA and base current is 19.1μA with a supply voltage of 2.25V. The new design proposed a (NFmin) of 0.62 dB with a 17.8dB high stable amplifier gain. The microstrip lines (MSL) and compensated matching network techniques were used to improve the LNA’s stability and achieve a good result. The LNA board is implemented and assembled on the FR4 botton layer material. The results are virtually non existence equivalent between the simulated and the measured results.

Sign in / Sign up

Export Citation Format

Share Document