Wave transmission lines and networks – Plural channel systems – Nonreciprocal gyromagnetic type
Patent
1982-02-19
1984-04-24
Gensler, Paul L.
Wave transmission lines and networks
Plural channel systems
Nonreciprocal gyromagnetic type
333102, 333 241, 333158, H01P 1397, H01P 111, H01P 1195
Patent
active
044450982
ABSTRACT:
The present invention is for an apparatus and method of fast-switching a dual-toroid microwave ferrite phase shifter. A first circuit is provided for controllably switching the ferrite in one of the toroids between a saturated and partially saturated states. A second conduit is provided for controllably switching the ferrite in the other of the toroids between a saturated and partially saturated states. A control circuit is provided for controlling the first and second circuits such that the ferrite in at least one of the toroids is maintained in the saturated state at any given time such that any desired phase shift may be achieved with only one switching operation for each toroid. The present invention provides new reference states such that there are two reciprocal phase states for any given phase state such that a reciprocal phase state may always be achieved with only one switching operation for each toroid.
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"Non-Reciprocal Remanence Phase Shifter Rectangular Waveguide", IEEE MIT-2, Feb. 1967 by W. J. and E. Stern.
Roberts Roger G.
Sharon Thomas E.
Electromagnetic Sciences, Inc.
Gensler Paul L.
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