Title :
New method to reduce errors in antenna pattern measurement using RLS algorithm
Author :
Dianat, Javad ; Ghobadi, Ch ; Nourinia, J.
Author_Institution :
Dept. of Electr. Eng., Urmia Univ., Iran
Abstract :
This paper presents a new method to reduce stray signal errors in antenna radiation pattern measurement using RLS algorithm (recursive least-squares algorithm). Stray signals create by reflection and scattering of the range antenna field from fixed objects in the range and by leakage of the range RF system. This method can be used on static far-field range. In this method, an antenna with the known pattern (reference antenna) is placed in the test zone to find the optimal tap weights of the RLS algorithm. By the optimal tap weights, radiation pattern of AUT (antenna under test) is corrected. The effectiveness of this method is confirmed by some simulation results.
Keywords :
antenna radiation patterns; electromagnetic wave reflection; electromagnetic wave scattering; least squares approximations; recursive estimation; antenna radiation pattern measurement; antenna under test; optimal tap weights; recursive least-squares algorithm; reference antenna; stray signal error reduction; Antenna measurements; Antenna radiation patterns; Directive antennas; Phase measurement; RF signals; Radio frequency; Reflection; Reflector antennas; Resonance light scattering; Testing;
Conference_Titel :
Microwave Conference Proceedings, 2005. APMC 2005. Asia-Pacific Conference Proceedings
Print_ISBN :
0-7803-9433-X
DOI :
10.1109/APMC.2005.1607001