Status of ferrite technology in the United States

There has been steady progress in advancing the state-of-the-art in ferrite devices in the United States over the past several years. Microstrip circulator technology at microwave frequencies has advanced to the point where cost and manufacturability rather than performance are the major issues. A primary goal is to produce a ferrite device which is compatible in size and cost with monolithic microwave circuits. Activity in thin-film YIG filter technology has been waning in the United States over the past few years but the intrinsically high Q of YIG resonators and the compatibility of film technology with monolithic circuits may reverse this trend. Vacuum electronics will continue to play an important role in future military systems. There is currently a substantial triservice initiative to advance this technology along many fronts (microwave power modules, vacuum microelectronics, millimeter-wave amplifiers, crossed field devices, etc.) in support of military requirements.<<ETX>>

[1]  S. H. Talisa,et al.  A 13-channel magnetostatic wave filterbank , 1988, 1988., IEEE MTT-S International Microwave Symposium Digest.

[2]  C. R. Boyd,et al.  Ferrite rotary-field phase shifters with reduced cross-section , 1990, IEEE International Digest on Microwave Symposium.

[3]  E. Schloemann.  Lumped-element circulator optimization , 1988, 1988., IEEE MTT-S International Microwave Symposium Digest.

[4]  R. E. Neidert,et al.  Losses in Y-junction stripline and microstrip ferrite circulators , 1993 .

[5]  Magnetostatic wave notch filter , 1992, 1992 IEEE Microwave Symposium Digest MTT-S.

[6]  S. N. Stitzer,et al.  Frequency selective limiters for high dynamic range microwave receivers , 1993, 1993 IEEE MTT-S International Microwave Symposium Digest.

[7]  S. Mathews,et al.  Superconducting nonreciprocal devices for microwave systems , 1992, IEEE Microwave and Guided Wave Letters.

[8]  J. A. Weiss,et al.  New uniaxial-ferrite millimeter-wave junction circulators , 1989, IEEE MTT-S International Microwave Symposium Digest.

[9]  W. E. Hord.  Recent developments in the average power capacity of rotary-field ferrite phase shifters , 1992, 1992 IEEE Microwave Symposium Digest MTT-S.

[10]  C. Vittoria,et al.  Oriented barium hexaferrite thin films prepared by pulsed laser deposition , 1992 .

[11]  Theory of low-field loss in partially magnetized ferrites , 1992 .

[12]  High-rate deposition of ferrite films in aqueous solution by light-enhanced ferrite plating , 1990 .

[13]  Lionel E. Davis,et al.  More compact ferrite circulator junctions with predicted performance , 1992 .

[14]  Ernst F. R. A. Schloemann,et al.  A compact broadband microstrip circulator for phased array antenna modules , 1992, 1992 IEEE Microwave Symposium Digest MTT-S.

[15]  H. Bosma.  On Stripline Y-Circulation at UHF , 1964 .

[16]  M. Latrach,et al.  A new design of cylindrical closed triplate ferrite resonators compared with magnetic wall approximation , 1990 .

[17]  Y. Tamaura,et al.  Ferrite plating on GaAs for microwave monolithic integrated circuit , 1987 .

[18]  S.N. Stitzer,et al.  A Multi-Octave Frequency Selective Limiter , 1983, 1983 IEEE MTT-S International Microwave Symposium Digest.