High power ferrite circulator having heating and cooling means
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United States of America Patent
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Jul 7, 1992
Grant Date -
N/A
app pub date -
Jul 10, 1989
filing date -
Jul 10, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A high power, high frequency, Y-junction three port circulator containing at least one metal plate in the Y-junction covered with ferromagnetic material and an external magnet producing a magnetic field through the ferromagnetic material so that it is magnetized to saturation magnetization when the temperature of the material is within a predetermined temperature range; and a method and means of maintaining the temperature of the ferrite material within said predetermined range even while the circulator operates in a variable ambient environment at high power, including means connected to the metal plate for heating and cooling the plate, thereby controlling the temperature of the ferromagnetic material to maintain the temperature thereof within said predetermined temperature range.
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