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Acoustic convolver using multistrip beamwidth compressors

Acoustic convolver using multistrip beamwidth compressors

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© The Institution of Electrical Engineers
Published

A degenerate nonlinear surface-wave convolver has been built from nonsymmetrical couplers working as beamwidth compressors to increase the acoustic power density and thus the bilinear merit factor. The measured results are compared with those of the classical LiNbO3 convolver, and the practical advantages of this new structure are pointed out. To demonstrate the device capability, the autocorrelation function of a linear f.m. pulse whose b.t. product was 120 has been performed.

Inspec keywords: lithium compounds; acoustic surface wave devices; signal processing

Other keywords: LiNbO3; acoustic surface wave devices; signal processing; acoustic convolver; multistrip beamwidth compressors

Subjects: Piezoelectric and ferroelectric devices; Acoustic wave devices

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