Wave transmission lines and networks – Automatically controlled systems – With control of equalizer and/or delay network
Patent
1976-02-12
1977-04-26
Smith, Alfred E.
Wave transmission lines and networks
Automatically controlled systems
With control of equalizer and/or delay network
333 33, 333 73S, 333 84M, 333 84R, H01P 120, H01P 700, H01P 308, H01P 504
Patent
active
040204294
ABSTRACT:
A high power tunable radio frequency circuit which may be used, for example, in a power oscillator, frequency discriminator, diplexer, filter, or a multicoupler comprising a stripline distributed circuit in the influence of a variable magnetic field introduced orthogonally to the plane of the stripline circuit. The stripline is laminated between two layers of planar ferrite members and the D.C. magnetic field intensity is varied to bias the material to a predetermined but variable permeability level, thus changing the propagation velocity of the R.F. signal in the stripline and, therefore, acting to tune the device. Alternately, a microstrip embodiment may be employed utilizing a planar ferrite substrate on one side of the circuit configuration only.
REFERENCES:
patent: 3448409 (1969-06-01), Moose et al.
patent: 3671888 (1972-06-01), Szente et al.
patent: 3681716 (1972-08-01), Chiron et al.
patent: 3766494 (1973-10-01), Anbe et al.
patent: 3875538 (1975-04-01), Minet et al.
patent: 3882420 (1975-05-01), Liu
Harvey-"Microwave Engineering" Academic Press New York, 1963; title page and pp. 8-9.
Motorola Inc.
Nussbaum Marvin
Shapiro M. David
Smith Alfred E.
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