Tunable SAW comb filter

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Tunable SAW comb filter

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© The Institution of Electrical Engineers
Published

The tunable saw comb filter is described. The principle of the filter is based on changing the phase shift in the closed loop of an amplifier by means of a variable mangetoacoustic SAW delay line.

Inspec keywords: surface acoustic wave filters; tuning; magnetoacoustic effects

Other keywords: tunable SAW comb filter; variable magnetoacoustic SAW delay line

Subjects: Active filters and other active networks; Acoustic wave devices

References

    1. 1)
      • V.A. Ermolov . Surface magnetoelastic waves in polycrystalline nickel - cobalt ferrites. Sov. Phys. Acoust. , 97 - 98
    2. 2)
      • G.S. Kino . , Acoustic waves: devices, imaging and analog signal processing.
    3. 3)
      • C. Campbell . (1989) , Surface acoustic wave devices and their signal processing applications.
    4. 4)
      • Henaff, J., Feldman, M.: `Electrically tunable narrow-bandwidth SAW filter', Proc. IEEE Ultrasonics Symp., 1980, p. 332–335.
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