Large-time-bandwidth-product surface-wave pulse compressor employing reflective gratings

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Large-time-bandwidth-product surface-wave pulse compressor employing reflective gratings

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© The Institution of Electrical Engineers
Published

A novel dispersive delay line with a time-bandwidth product in excess of 1500 has been developed. The device uses the reflection of elastic surface waves from sputter-etched gratings on LiNbO3. This reflective-array compressor is relatively free of the spurious signals which limit the performance of inter-digital transducer arrays.

Inspec keywords: ultrasonic delay lines

Other keywords: surface wave pulse compressor; large time bandwidth product; dispersive delay line; reflective grating use

Subjects: Acoustic wave devices

References

    1. 1)
      • Martin, T.A.: `A new dispersive delay line', Presented at the 1970 IEEE ultrasonics symposium, 21–23 October 1970, San Francisco, Calif..
    2. 2)
      • J.J. Campbell , W.R. Jones . A method for estimating optimal crystal cuts and propagation directions for excitation of piezoelectric surface waves. IEEE Trans. , 209 - 217
    3. 3)
      • R.C. Williamson . Improved electrostatic probe measurements of elastic surface waves. IEEE Trans.
    4. 4)
      • H.I. Smith , F.J. Bachner , N. Efremow . A high yield photo-lithographic technique for surface wave devices. J. Electrochem. Soc. , 821 - 825
    5. 5)
      • R.H. Tancrell , M.G. Holland . Acoustic surface wave filters. Proc. Inst. Elec. Electron. Eng. , 393 - 409
    6. 6)
      • Slobodnik, A.J., Conway, E.D.: `Microwave acoustics handbook', AFCRL-70-0164, 1970.
    7. 7)
      • Williamson, R.C., Smith, H.L.: `The reflection of elastic surface waves from periodic arrays on LiNbO', Presented at the 1971 IEEE ultrasonics symposium, 1971, Miami Beach, Fla..
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