Single-mode tunable oscillator using magnetostatic waves

Details Single-mode tunable oscillator using magnetostatic waves Single-mode tunable oscillator using magnetostatic waves

1979-04-27

1981-09-22

Grimm, Siegfried H.

Oscillators

With distributed parameter resonator

331107A, 331135, 331154, 333144, 333152, H03B 530

Patent

active

042912830

ABSTRACT:
An oscillator including two magnetostatic wave delay lines of different lengths formed on the surface of a magnetic material, one of whose ends is common and made by a first microstrip coupler, each of the other ends being made of a second and a third microstrip couplers respectively. The two lines are looped by means of a single amplifier. By selecting the two lengths, it is possible to obtain the desired interval between modes in such a way that there is a single oscillation mode comprised in the pass-band of the strips, in a pre-determined tuning band. This oscillator operates in the microwave range.

REFERENCES:
patent: 4028639 (1977-06-01), Hagon et al.
Miller et al., "Tunable Magnetostatic Surface Wave Oscillator", Electronics Letters, vol. 12, No. 9, Apr. 29, 1976, pp. 209, 210.
"Surface-Acoustic-Wave Oscillator Tuned by Magnetoelastic Effect, Electronics Letters, vol. 13, No. 19, Sep. 15, 1977, pp. 589-590.
Parker et al., "A Saw Oscillator Using Two Acoustic Paths", 1976 IEEE Ultrasonics Symposium Proceedings, Sep. 29-Oct. 1, 1976, pp. 243-247.
Haworth, "A Magnetostatic Delay Line Oscillator", 1975 IEEE-MTT-S International, May 12-14, 1975, pp. 371-372.
Adam et al., "Microwave Magnetostatic Delay Devices Based on Epitaxial Yttrium Iron Garnet", Proceedings of IEEE, vol. 64, May 1976, pp. 794-800.

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