Microwave power accumulator
AssigneeHughes Aircraft Company
InventorsRobert S. Harp, Harry L. Stover
Life of this patent
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Abstract
Disclosed is a microwave power accumulator including a plurality of coaxial oscillator circuits, each tightly coupled to a single common output combining resonant cavity. Each of the coaxial circuits includes a negative resistance diode at one end and a lossy terminating (microwave absorbing) material at the other end which absorbs and suppresses resonant modes within each coaxial circuit. This feature enables the cavity resonance of the common output combining cavity to dominate all of the individual coaxial circuits spaced therearound. The spacing of these coaxial circuit modules around a common cylindrical output combining cavity permits a high packing density and good individual heat sinking for the accumulator.
Claims15
A microwave power accumulator including, in combination:
- a. a plurality of coaxial circuits, each having a longitudinal axis of predetermined length and further having at least one solid state microwave diode at one end of said axis and a lossy termination element at the other end thereof, and conductor means connecting said diode and said element, said coaxial circuits operative to generate microwave power which is substantially free of spurious harmonics,
- b. a central power combining cavity being defined in part by a periphery enclosing a given space and having a central axis at the center of said periphery,
- c. said coaxial circuits positioned around said periphery of said cavity and having their longitudinal axes spaced an equal distance from said central axis of said cavity,
- d. said cavity further having an output port therein centrally disposed with respect to said coaxial circuits for receiving the combined power outputs from all of said coaxial circuits, and
- e. said diode in each coaxial circuit being electromagnetically coupled to said cavity, and the resonance of said cavity causing the oscillation of said coaxial circuits at a predetermined frequency.
A microwave power accumulator comprising:
- a. a plurality of negative resistance electromagnetic oscillator circuits each capable of producing both microwave and millimeter wave power and each tuned to couple a power output signal to an output port thereof substantially free of spurious harmonics,
- b. a central power combining cavity including spaced apart top and bottom walls having outer edges thereof joined to said plurality of negative resistance electromagnetic circuits at the respective output ports thereof and enclosing a region of predetermined volume which defines a central electromagnetic wave propagating region, and
- c. said top wall having a centrally disposed output port therein from which the combined power outputs from all of said negative resistance electromagnetic oscillator circuits are derived.
Dependencies are inferred from the claim text.