A tunable RF front-end receiver for cognitive radio applications

Author

Ramadan, A.H. ; Costantine, Joseph ; Kabalan, Karim Y. ; Tawk, Youssef ; Christodoulou, Christos G. ; Al-Husseini, Mohammed

Author_Institution

American Univ. of Beirut, Beirut, Lebanon

fYear

2014

fDate

6-11 July 2014

Firstpage

1212

Lastpage

1213

Abstract

In this paper, a tunable RF front-end sensing receiver for overlay cognitive radio applications is presented. The WLAN IEEE 802.11 g commercial wireless standard key specifications are targeted in the proposed receiver. The design includes a tunable filter-antenna, low-noise amplifier, tunable bandpass filter, single-ended balanced mixer, and a variable gain IF (Intermediate Frequency) amplifier. Prototypes of the aforementioned blocks are fabricated, measured, and assembled to test the reception of the built receiver. For different carrier frequencies in the 2.4-2.485 GHz vicinity, a 20-MHz down-converted signal is shown at the IF output of the receiver.

Keywords

UHF detectors; cognitive radio; overlay networks; radio receivers; radio reception; wireless LAN; wireless sensor networks; WLAN IEEE 802.11 g commercial wireless standard key specification; down-converted signal; frequency 2.4 GHz to 2.485 GHz; frequency 20 MHz; intermediate frequency amplifier; low-noise amplifier; overlay cognitive radio application; single-ended balanced mixer; tunable RF front-end sensing receiver; tunable bandpass filter; tunable filter-antenna; variable gain IF amplifier; Cognitive radio; OFDM; Radio frequency; Receivers; Sensors; Wireless sensor networks;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2014 IEEE

Conference_Location

Memphis, TN

ISSN

1522-3965

Print_ISBN

978-1-4799-3538-3

Type

conf

DOI

10.1109/APS.2014.6904933

Filename

6904933