Title :
Characterization of non-anechoic chambers and echo cancellation for antenna measurement [horn antenna examples]
Author :
Pino, Marcos R. ; Loredo, Susana ; Las-Heras, Femando ; Sarkar, Tapan K.
Author_Institution :
Dept. of Electr. Eng., Univ. of Oviedo, Gijon, Spain
Abstract :
This communication focuses on the measurement of antenna radiation patterns when fully anechoic conditions are not available and consequently some undesirable echoes are initially present in the measure. Two techniques are analyzed and compared in order to identify the echo contributions and retrieve the antenna radiation pattern. Their accuracy is evaluated by comparison with measurements obtained in an anechoic chamber.
Keywords :
anechoic chambers (electromagnetic); antenna radiation patterns; antenna testing; echo suppression; fast Fourier transforms; frequency response; horn antennas; transient response; FFT; anechoic chamber; antenna measurement; antenna radiation patterns; echo cancellation; frequency response; horn antennas; impulse response; matrix-pencil method; nonanechoic chamber characterization; Anechoic chambers; Antenna measurements; Antenna radiation patterns; Delay effects; Diffraction; Echo cancellers; Fourier transforms; Frequency response; Reflector antennas; Time factors;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2004. IEEE
Print_ISBN :
0-7803-8302-8
DOI :
10.1109/APS.2004.1329776
