Integral polepiece RF amplification tube for millimeter wave frequencies
AssigneeLitton Systems, Inc.
InventorsAlan J. Theiss, Douglas B. Lyon
Life of this patent
Estimating the term…
Abstract
An integral polepiece RF amplification tube for amplifying a millimeter wave RF signal is provided which has a laminate structure comprising a plurality of magnetic and non-magnetic conductive plates which are alternatingly and integrally formed together. The tube has substantially planar surfaces, which permit the attachment of a heat sink thereto. The non-magnetic plates each have a slot which provides a resonant cavity, and a portion of the magnetic plates have a notch which couples the cavities. A magnetic field induced into the tube provides focusing to an electron beam projected through a tunnel which passes through each of the cavities. The amplification tube can be configured for use as a coupled cavity traveling wave tube or a klystron.
Claims35
An RF amplification tube for amplifying a microwave signal, comprising:
- a laminate structure comprising a plurality of magnetic plates and a plurality of electrically conductive non-magnetic plates which are alternatingly and integrally formed together;
- a means for inducing a magnetic field in said laminate structure having lines of flux which flow through said magnetic plates;
- a planar surface provided on at least one side of said laminate structure, said planar surface permitting the attachment of a heat sink thereto;
- and
- a beam tunnel provided through said structure and permitting projection of an electron beam therethrough, said magnetic plates extending to said beam tunnel.
An RF amplification tube for amplifying a microwave signal, comprising:
- a laminate structure comprising a plurality of magnetic plates and a plurality of electrically conductive non-magnetic plates which are alternatingly and integrally formed together;
- a means for inducing a magnetic field in said laminate structure having lines of flux which flow through said magnetic plates;
- and
- a beam tunnel provided through said structure and permitting projection of an electron beam therethrough, said magnetic plates extending to said beam tunnel.
An RF amplification tube for amplifying a microwave signal, comprising:
- a laminate structure comprising a plurality of magnetic plates and a plurality of electrically conductive non-magnetic plates which are alternatingly and integrally formed together;
- a means for inducing a magnetic field in said laminate structure having liens of flux which flow through said magnetic plates;
- a planar surface provided on at least one side of said laminate structure, said planar surface permitting the attachment of a heat sink thereto;
- and
- a beam tunnel provided through said structure and permitting projection of an electron beam therethrough;
- wherein said non-magnetic plates each have a slot, said slots each providing a resonant cavity, said magnetic plates having a notch, said notches coupling said cavities.
An RF amplification tube for amplifying a microwave signal, comprising:
- a laminate structure comprising a plurality of magnetic plates and a plurality of electrically conductive non-magnetic plates which are alternatingly and integrally formed together;
- a means for inducing a magnetic field in said laminate structure having lines of flux which flow through said magnetic plates;
- a planar surface provided on at least one side of said laminate structure, said planar surface permitting the attachment of a heat sink thereto;
- and
- a heat sink attached to said planar surface, said non-magnetic plates conducting heat from said beam tunnel to said heat sink.
An RF amplification tube for amplifying a microwave signal, comprising:
- a laminate structure comprising a plurality of magnetic plates and a plurality of electrically conductive non-magnetic plates which are alternatingly and integrally formed together;
- a means for inducing a magnetic field in said laminate structure having lines of flux which flow through said magnetic plates, said inducing means comprises permanent magnets coupled to said magnetic plates;
- and
- a planar surface provided on at least one side of said laminate structure, said planar surface permitting the attachment of a heat sink thereto.
An RF amplification tube for amplifying a microwave signal, comprising:
- a laminate structure comprising a plurality of non-magnetic plates and a plurality of electrically conductive non-magnetic plates which alternatingly and integrally formed together;
- a means for inducing a magnetic field in said laminate structure having lines of flux which flow through said magnetic plates;
- a planar surface provided on at least one side of said laminate structure, said planar surface permitting the attachment of a heat sink thereto;
- wherein said non-magnetic plates each have at least one slot, said slots each providing a resonant cavity, a portion of said magnetic and non-magnetic plates having a notch, said notches coupling said cavities.
An RF amplification tube for amplifying a microwave signal, comprising:
- a laminate structure comprising a plurality of non-magnetic plates and a plurality of electrically conductive non-magnetic plates which are alternatingly and integrally formed together;
- a means for inducing a magnetic field in said laminate structure having lines of flux which flow through said magnetic plates;
- a planar surface provided on at least one side of said laminate structure, said planar surface permitting the attachment of a heat sink thereto;
- said non-magnetic plates each have at least one slot, said slots each providing a resonant cavity, a portion of said magnetic plates having a notch, said notches coupling said cavities.
A millimeter wave electron tube, having at least a pair of coupled cavities, comprising:
- an iris for coupling said coupled cavities located at an edge of a magnetic polepiece;
- and
- a planar heat sink forming a wall of said iris.
A millimeter wave electron tube, having at least a pair of coupled cavities, comprising:
- an iris for coupling said coupled cavities located at an edge of a magnetic polepiece;
- a planar heat sink forming a wall of said iris;
- and
- a plurality of non-magnetic plates, said non-magnetic plates alternatingly and integrally formed with a plurality of said polepieces.
A method for manufacturing an integral polepiece coupled cavity traveling wave tube for amplifying a millimeter wave RF signal, comprising the steps of:
- alternatingly assembling a plurality of substantially unfinished magnetic and non-magnetic plates together;
- integrally forming said plates together into a laminate structure;
- and
- forming a substantially planar surface on at least one side of said laminate structure.
A method for manufacturing an integral polepiece coupled cavity traveling wave tube for amplifying a millimeter wave RF signal, comprising the steps of:
- alternatingly assembling a plurality of magnetic and non-magnetic plates together;
- integrally forming said plates together into a laminate structure;
- forming a substantially planar surface on at least one side of said laminate structure;
- cutting a notch into a selected edge of selected ones of said magnetic plates and partially extending into said non-magnetic plates adjacent to said magnetic plate;
- and
- cutting a slot through each of said non-magnetic plates, each of said slots providing a cavity, said notches coupling said cavities.
Dependencies are inferred from the claim text.