Title :
Techniques for realizing reconfigurable RF building blocks for cognitive radio
Author :
Neihart, Nathan M. ; El-Gouhary, Amany ; Yifei Li ; Sessou, Kossi ; Xiaohua Yu
Author_Institution :
Dept. of Electr. & Comput. Eng., Iowa State Univ., Ames, IA, USA
Abstract :
Cognitive radio has emerged as an effective method for relieving the current problem of spectral crowding. One primary challenge in the field of cognitive radio design is the realization of highly frequency agile RF building blocks. This paper presents a new technique for realizing a multi-band low noise amplifier, reviews methods for realizing wide-band power amplifiers, and a new method for extending the tuning range of the voltage controlled oscillator. In addition, this paper presents a nonlinear analysis of concurrent multi-band mixers which will aid in future cognitive radio frequency planning.
Keywords :
amplifiers; cognitive radio; oscillators; telecommunication network planning; cognitive radio design; cognitive radio frequency planning; concurrent multi-band mixers; highly frequency agile RF building blocks; multiband low noise amplifier; nonlinear analysis; reconfigurable RF building blocks; spectral crowding; tuning range; voltage controlled oscillator; wide-band power amplifiers;
Conference_Titel :
Circuits and Systems (MWSCAS), 2013 IEEE 56th International Midwest Symposium on
Conference_Location :
Columbus, OH
DOI :
10.1109/MWSCAS.2013.6674789