Antennas, such as stacked patches, often employ low permittivity substrates, such as foams, but these tend to be fragile and difficult to glue. The authors show that low permittivity materials may instead be synthesised by perforating standard microwave substrates. Results from practical and numerical experiments are presented
Publisher: Institution of Electrical Engineers (IEE)
Rose publication type: Journal article
Sponsorship: The authors would like to thank Professors
McGeehan and White for the use of the facilities at the University of Bristol, and the Government for funding under project GV-98-14-126.