Claims
- 1. In a magnetostatic wave delay line having a ground plane member, a magnetostatic substrate member in spaced proximate relationship thereto, transmitting and receiving transducers spaced apart and operably engaged to said substrate member and means for generating a magnetic bias field, the improvement residing in a delay line parameters configuration of discrete parameters for group delay linearity enhancement, said delay line parameters configuration comprising
- linear parameter variation with distance, between said transmitting and receiving transducers, said linear parameter variation being implemented by means of a linear variation of the magnetic field bias strength.
- 2. A magnetostatic wave delay line as defined in claim 1 wherein the linear parameter variation is implemented by means of a linear variation of the magnetostatic substrate thickness.
- 3. A magnetostatic wave delay line as defined in claim 1 wherein the linear parameter variation is implemented by means of a linear variation of magnetostatic substrate member to ground plane member spatial relationship.
- 4. A magnetostatic wave delay line as defined in claim 1 wherein said magnetic field bias strength varies from a field strength of 3000 gauss at one transducer to 3200 gauss at the other transducer.
- 5. A magnetostatic wave delay line is defined in claim 2 wherein the thickness of said magnetic substrate varies from 10 microns at one transducer to 30 microns at the other transducer.
- 6. A magnetostatic wave delay line as defined in claim 3 wherein magnetostatic substrate member to ground plane member spatial relationship varies from 10 microns at one transducer to 30 microns at the other transducer.
- 7. A magnetostatic wave delay line as defined in claim 1 wherein said magnetostatic substrate member is comprised of a magnetic crystal garnet film.
- 8. A magnetostatic wave delay line as defined in claim 7 wherein said manetic crystal garnet film is Yittmium Iron Garnet.
STATEMENT OF GOVERNMENT INTEREST
The invention described herein may be manufactured and used by or for the Government for governmental purposes without the payment of any royalty thereon.
US Referenced Citations (11)