Patent ID: 6967545
Filing Date: 2005-11-22
Classification: H03H

Abstract:
1. A one-channel zebra-wave-guide implemented as an array of interdigitized electrode fingers, wherein said array comprises: (a) at least one inter-finger connector, providing electrical shorting of interdigitized electrode fingers, wherein said inter-finger connector is arranged either within and/or outside of said array, wherein size of said inter-finger connector is substantially small in direction perpendicular to direction of a SAW beam propagation, wherein said size is less than half a λ, where λ is a SAW wave-length at a desired frequency; (b) borders on both sides along direction of said SAW beam propagation, wherein each of said borders comprises a substantially wide free surface, wherein said substantially wide free surface is wider than half of said λ; and (c) at least two interdigitized electrode fingers, which are periodicallyadapted arranged for providing in-phase summing of partial SAW waves reflected from said at least two interdigitized electrode fingers at said desired frequency.