Accession Number:

AD0738834

Title:

UHF Ferrites (Garnets).

Descriptive Note:

Semiannual technical rept. 1 May-31 Dec 71,

Corporate Author:

RAYTHEON CO WALTHAM MASS RESEARCH DIV

Personal Author(s):

Report Date:

1972-01-01

Pagination or Media Count:

79.0

Abstract:

Two objectives have been defined for the performance of this contract. The first is the development of a low loss temperature stable magnetic garnet for an above resonance microwave UHF circulator. The second is to develop an S-band phase shifter material which would offer some improvement in temperature stability and lower materials cost over presently available ferrites. Dense, single phase garnet has been produced with the composition Y 1.70Ca1.30In.35V.65Fe4.00O12. A survey has been made of the garnet and spinel S-band phase-shifter materials. A processing study has been started on a calcium-vanadium substituted YIG. Compositions with and without manganese substitutions have been prepared to explore the effect on remanent magnetization and stress sensitivity. Author

Subject Categories:

  • Electrical and Electronic Equipment
  • Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE