Monolithic waveguide zinc-oxide-on-silicon convolver
- 27 May 1976
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 12 (11) , 271-272
- https://doi.org/10.1049/el:19760209
Abstract
A monolithic waveguide zinc-oxide-on-silicon convolver has been constructed and operated at a centre frequency of 125 MHz. The zinc oxide is originally deposited over the whole substrate and then etched to form the waveguide. The waveguide width is 1/10 of the beam width at the input transducers, which should yield a 20 dB improvement in efficiency over a normal convolver with a beam width equal to the transducer width, after accounting for the loss in the input tapers. Such an improvement was observed in experimental devices.Keywords
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