Title :
Measurements and analysis of the effects associated with the panel gaps in a millimetrewave CATR
Author :
Philippakis, M. ; Parini, C.G.
Author_Institution :
Dept. of Electron. Eng., Queen Mary & Westfield Coll., London, UK
Abstract :
The antenna laboratory of Queen Mary and Westfield College is now operating a new compact Antenna Test Range (CATR) facility. The associated reflector is made of 18 panels each with surface accuracy of about 10-18 μm RMS, which makes the range operational for frequencies in excess of 200 GHz. Practical experience gained during measurements of antenna patterns at 183 GHz revealed that the gap formed between the panels have a significant impact on the recorded pattern especially when the antenna under test possesses significant directivity. These effects are expected to persist even in the absence of any misalignment errors
Keywords :
antenna radiation patterns; microwave antennas; microwave measurement; test facilities; 183 GHz; Queen Mary and Westfield College; antenna laboratory; antenna patterns measurement; antenna under test; compact Antenna Test Range; directivity; millimetrewave CATR; panel gaps; surface accuracy;
Conference_Titel :
Antenna Measurements using the Compact Antenna Test Range, IEE Colloquium on
Conference_Location :
London
