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Tunable frequency selective surface using liquid substrates

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3 Author(s)
Lima, A.C.deC. ; Electron. Eng. Labs., Kent Univ., Canterbury ; Parker, E.A. ; Langley, R.J.

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

Published in:

Electronics Letters  (Volume:30 ,  Issue: 4 )