Title :
Experimental adaptive cylindrical array
Author :
Haupt, Randy L. ; Southall, Hugh
Author_Institution :
Dept. of Electr. Eng., Nevada Univ., Reno, NV, USA
Abstract :
An adaptive antenna places nulls in its antenna pattern in the direction of the interfering sources. Adaptive antennas are a subset of smart antennas, and have received considerable interest in the recent wireless revolution. This paper presents a successful application of a genetic algorithm with an experimental antenna for placing a null in the direction of an interference source. The experiment took place at the Air Force Research Laboratory (AFRL)/Sensors Directorate, Hanscom AFB, MA. Results show that a null can be placed down to the noise floor of the measurement system within 20 to 50 power measurements. Thus, the approach to adaptive nulling is a viable means of quickly placing a null in the sidelobes of a phased array antenna
Keywords :
adaptive antenna arrays; antenna phased arrays; antenna radiation patterns; dipole antenna arrays; genetic algorithms; adaptive antenna; adaptive cylindrical array; antenna pattern; genetic algorithm; interfering sources; noise floor; nulls; phased array antenna; sidelobes; Adaptive arrays; Directive antennas; Force measurement; Force sensors; Genetic algorithms; Interference; Phased arrays; Power measurement; Receiving antennas; Wireless sensor networks;
Conference_Titel :
Aerospace Conference, 1999. Proceedings. 1999 IEEE
Conference_Location :
Snowmass at Aspen, CO
Print_ISBN :
0-7803-5425-7
DOI :
10.1109/AERO.1999.789789
