DocumentCode :
2174099
Title :
Low complexity free space impedances measurement of UWB antennas
Author :
Sipal, Vit ; Gelabert, Javier ; Stevens, Christopher ; Edwards, David ; Allen, Ben
Author_Institution :
Dept. of Eng. Sci., Univ. of Oxford, Oxford, UK
fYear :
2012
fDate :
26-30 March 2012
Firstpage :
2095
Lastpage :
2098
Abstract :
This work discusses the standard algorithm for measurement of free-space antenna reflection coefficient in a reverberation chamber. This algorithm is explored in the time domain and it is shown that the bandwidth of ultrawideband antennas allows a significant reduction of the number of measurements required. This is because the ultrawideband bandwidth allows us differentiating between the free space antenna reflection coefficient and the backscattering of the environment. The limits on the minimum bandwidth, the distance to the nearest object, and the number of measurement points are discussed and experimental results confirm the methodology. The proposed methodology significantly reduces the duration of the measurement and it is believed to be of interest for industrial production and testing of ultrawideband antennas.
Keywords :
electric impedance measurement; electromagnetic wave reflection; ultra wideband antennas; UWB antennas; free-space antenna reflection coefficient; industrial production; low complexity free space impedances measurement; reverberation chamber; time domain; ultrawideband bandwidth; Antenna measurements; Bandwidth; Reflection; Reflector antennas; Time domain analysis; UWB; antenna; measurement; reflection coefficient; ultrawideband;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas and Propagation (EUCAP), 2012 6th European Conference on
Conference_Location :
Prague
Print_ISBN :
978-1-4577-0918-0
Electronic_ISBN :
978-1-4577-0919-7
Type :
conf
DOI :
10.1109/EuCAP.2012.6205838
Filename :
6205838
Link To Document :
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