Title :
94 GHz cassegrain reflector antenna performance characterization
Author :
Nova, Enrique ; Rodrigo, Daniel ; Romeu, Jordi ; Jofre, Lluis
Author_Institution :
Dept. Signal Theor. & Commun., Univ. Politec. de Catalunya (UPC), Barcelona, Spain
Abstract :
In this contribution, the measurement procedure of the impedance and radiation characteristics of a cassegrain reflector antenna is presented. Near-field (NF) measurement techniques have been used to obtain the radiation pattern and the directivity of the antenna. The antenna efficiency has been characterized using a calibrated total power radiometer. Moreover, tolerance effects in the return loss (RL) measurements are discussed, providing a solution to overcome the variability of the input impedance of different antenna prototypes.
Keywords :
antenna radiation patterns; directive antennas; millimetre wave antennas; radiometers; reflector antennas; Cassegrain reflector antenna performance characterization; NF measurement technique; RL measurements; calibrated total power radiometer; directive antennas; frequency 94 GHz; impedance characteristics; measurement procedure; near-field measurement technique; radiation pattern characteristics; return loss measurement; Antenna measurements; Antenna radiation patterns; Electric variables measurement; Radiometry; Receivers;
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
DOI :
10.1109/EuCAP.2012.6206104
