Title :
Reconfigurable Null Scanning Antenna With Three Dimensional Null Steer
Author :
Siwen Yong ; Bernhard, Jennifer
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Illinois at Urbana-Champaign, Urbana, IL, USA
fDate :
3/1/2013 12:00:00 AM
Abstract :
A reconfigurable null scanning antenna (RNSA) capable of continuous null steering in three-dimensional space is presented. This compact antenna maintains its common impedance bandwidth through the careful combination of resonances of both the driven and parasitic patches, and the incorporation of 12 varactors enables continuous null steer. Full wave simulations predict antenna performance, whereas impedance and pattern measurements validate simulated results.
Keywords :
antenna radiation patterns; beam steering; varactors; RNSA; continuous null steering; full wave simulations; impedance bandwidth; impedance measurements; parasitic patches; pattern measurements; reconfigurable null scanning antenna; three dimensional null steer; varactors; Antenna measurements; Antenna radiation patterns; Capacitance; Impedance; Varactors; Voltage measurement; 3–D null scanning; cognitive radio; microstrip; pattern reconfigurable antenna;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2012.2227101
