Ultra-low-power 2.4 GHz image-rejection low-noise amplifier

21 July 2005

journal article
Published by Institution of Engineering and Technology (IET) in Electronics Letters

Vol. 41 (15) , 842-843
https://doi.org/10.1049/el:20051032

Abstract

An ultra-low-power image-rejection low-noise amplifier (IR-LNA) for 2.4 GHz ZigBee applications based on 0.18 µm CMOS technology is presented. By using the third-order active notch filter the proposed IR-LNA can achieve high image-rejection ratio. Measurements show 12 dB gain, 1.8 dB noise figure, 38 dB image-rejection, −3 dBm input third-order intercept point, −18 and −19 dB input and output return loss while dissipating 0.6 mA from a supply voltage of 1.5 V.

Keywords

1.8 DB
-19 DB
0.6 MA
OUTPUT RETURN LOSS
-18 DB
ZIGBEE APPLICATIONS
CMOS TECHNOLOGY
THIRD-ORDER ACTIVE NOTCH FILTER
1.5 V
INPUT RETURN LOSS
12 DB
INPUT THIRD-ORDER INTERCEPT POINT
NOISE FIGURE
0.18 MICRON
IR-LNA
2.4 GHZ
ULTRA-LOW-POWER LOW-NOISE AMPLIFIER
IMAGE-REJECTION LOW-NOISE AMPLIFIER

This publication has 2 references indexed in Scilit:

CMOS Low-Noise Amplifier Design Optimization Techniques
IEEE Transactions on Microwave Theory and Techniques, 2004
5-GHz CMOS wireless LANs
IEEE Transactions on Microwave Theory and Techniques, 2002