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Reconfigurable Dual-Channel Multiband RF Receiver for GPS/Galileo/BD-2 Systems.
- Source :
-
IEEE Transactions on Microwave Theory & Techniques . Nov2012, Vol. 60 Issue 11, p3491-3501. 11p. - Publication Year :
- 2012
-
Abstract
- A fully integrated dual-channel multiband RF receiver is designed and implemented for next-generation global navigation satellite systems (GNSSs) in a 0.18-\mu\ m CMOS process. Its two reconfigurable signal channels can simultaneously process any two types of 2-, 4-, or 20-MHz bandwidth signals mainly located around the RF bands of 1.2 and 1.57 GHz for GPS, Galileo, and BD-2 (aka Compass) systems, while achieving better performance (die area, noise figure, gain dynamic range) than other state-of-the-art GNSS receivers. A digital automatic gain control loop consisting of a variable gain amplifier and nonuniform 4-bit ADC is utilized to improve the receiver's robustness and performance in the presence of interferences. While drawing 25-mA current per channel from a 1.8-V supply, this RF receiver achieves a total noise figure of 2.5 dB/2.7 dB at 1.2/1.57 GHz, an image rejection of 28 dB, a maximum voltage gain of 110 dB, a gain dynamic range of 73 dB, and an input-referred 1-dB compression point of -58 dBm, with an active die area of 2.4 \ mm^2 for single channel. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 00189480
- Volume :
- 60
- Issue :
- 11
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Microwave Theory & Techniques
- Publication Type :
- Academic Journal
- Accession number :
- 83369255
- Full Text :
- https://doi.org/10.1109/TMTT.2012.2216287