Title :
Tunable frequency selective surface using liquid substrates
Author :
Lima, A.C.deC. ; Parker, Edward A. ; Langley, Richard J.
Author_Institution :
Electron. Eng. Labs., Kent Univ., Canterbury
fDate :
2/17/1994 12:00:00 AM
Abstract :
The passband of a convoluted slot array is switched in frequency by exchanging liquid substrates. In the example illustrated, liquid with εr ≃ 2.2 gives a 3 GHz frequency shift and a 16 dB change in the transmission coefficient at 17 GHz
Keywords :
microwave antenna arrays; slot antennas; tuning; 17 GHz; convoluted slot array; frequency selective surface; liquid substrates; passband; tunable FSS;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19940232