US2895076A - High frequency electron discharge device - Google Patents
High frequency electron discharge device Download PDFInfo
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- US2895076A US2895076A US667060A US66706057A US2895076A US 2895076 A US2895076 A US 2895076A US 667060 A US667060 A US 667060A US 66706057 A US66706057 A US 66706057A US 2895076 A US2895076 A US 2895076A
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- electron discharge
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/54—Amplifiers using transit-time effect in tubes or semiconductor devices
Definitions
- This invention relates to very high frequency electron discharge devices, and more particularly to a coaxial transmission line assembly for such a device.
- One object of the invention is to reduce the magnitude of mechanical stress and strain imposed upon an electron discharge device incident to its insertion and withdrawal in a coaxial transmission line assembly.
- Another object of this invention is to provide an improved coaxial transmission line assembly whereinthe associated high frequency electron discharge device may be inserted and withdrawn without disturbing the remainder of the assembly.
- a further object of the invention is to provide a simple tuning structure for a coaxial line assembly utilizing an electron discharge device wherein the anode blocking capacitor for the said device may be removed without disturbing the associatedcoaxial transmission line.
- Another object of this invention is to provide a coaxial transmission line assembly aifording isolation for the anode element of the electron discharge device so that the reception by said anode element of the DC. voltage developed in said device, produces no reactive effects along any associated conductive elements of the aforesaid assembly.
- Transmitters and receivers in the very high frequency range frequently use electron discharge devices in the socalled grounded grid circuit wherein the grid is the electron discharge element common to both' input and output circuits, the input signal being applied between grid and cathode and the output signal being removed between grid and anode.
- the high frequency range it is also common practice to use resonant coaxial transmission lines astuned circuits.
- Coaxial transmission line assemblies as heretofore known, have various disadvantages.
- the anode line is constructed around the outside ofa cathode line.
- the high voltage is exposedand-it is difficult to provide RF. and power connectionsto. the tuned circuits.
- the present invention provides unitary, interlocking means associated with a resonant coaxial transmission line'in such a manner as to permit insertion and withdrawal of an electrondischarge device therethrough.
- the said unitary means includes a carrier to transmit the mechanical stress and strain incident to insertion and withdrawal, the carrier being left in place while the electron discharge device is operating in the coaxial line assembly.
- the anode blocking capacitor is built into the lower end of the carrier.
- the electron discharge device is mountedin the carrier and then inserted into the coaxial line assembly.
- the R.F. component of anode current passes through the anode ice capacitor to the outside surface of the carrier and then to the center conductor of the aforesaid assembly.
- the resonant coaxial transmission line is comprised of a pair of cylindrical cavity resonators 1 and 2 respectively, for electronic discharge tube 3 which is utilized in a grounded grid circuit wherein grid 4 of electron discharge device 3 is common to both input and output circuits.
- the input being applied between grid 4 and cathode 8 and output being removed between grid 4 and anode 6.
- Resonator 1 is utilized as a resonator for grid 4 and cathode 8 of device 3 and resonator 2 utilized as a resonator for grid 4 and anode 6.
- Resonator 1 is comprised of outer conductive cylinders 7 and inner conductive cylinder 8, respectively.
- the terminating end of resonator 1 is short-circuited by adjustable annular'piston 9.
- the other terminating end of resonator 1 is completed by means of annular conductive disc 10.
- Annular conductive disc 11 has a plurality of conductive fingers 12 contacting grid flange 4 which is separated from annular disc 10 by annular dielectric disc 13, thus forming a capacitor.
- the R.F. energy from grid. 4 is thereby coupled to outer conductive cylinder 7.
- Cathode 5 is capacitively coupled to inner conductive cylinder 8 by means of annular conductive disc 14, annular dielectric disc 15 and annular conductive disc 16 having a.
- Outer cylinder 7 is electrically connected to inner cylinder 8 by adjustable annular shorting piston 9.- Cylinders 7 and 8 are heldin concentric mechanical inter-relationship by annular disc shaped end member 17 and disc 22 performs the same function as between elements 20 and 21. Direct current connection. to grid 4 is completed by way of wire 18- and to cathode 5 by way of wire 19.
- Resonator 2 is comprised of outer conductive cylinder 20 and inner conductive cylinder 21 which are electrically interconnected by way of adjustable annular shorting piston 23. The other terminating end is common to both resonator 1 and 2 and is annular conductive disc 10.
- Grid 4 is capacitively coupled to outer cylinder 20 by way of annular conductive disc 10, annular dielectric disc 13 and annular conductive disc 11 having a plurality of conductive fingers 12 contacting the aforementioned-v grid 4.
- Inner conductive cylinder 21 is made of suflicient diameter so that it permits the insertion and withdrawalof a carrier with electron discharge device rigidly mounted at one end.
- the carrier is comprised of two concentric conductive cylinders 24 and 25 of which the outer cylinder 24 extends axially beyond the plane of terminating disc 22 while the inner cylinder '25 terminates in a threaded portion 27 adapted to receive a fitting 28 serving to mechanically seecure anode flange of electron discharge device 3 in adjustable relation thereto, there beingan inner shoulder 29 formed internally of cylinder 25 to cooperate with fitting 28 in this securing operation.
- Resonator 2 also includes cooling air duct 32 to provide means to dissipate heat from discharge device 3.
- a dielectric material such as sheet mica or its equivalent, is wrapped about the outer periphery of cylinder 25 as indicated at cylinder 25 and the inner surface of cylinder 24 thus effecting a unitary organization consisting of the two cylinders 2425 and the interposed dielectric material 30.
- a multi-fingered conducting ring 31 depending from the lower portion of the inner wall 21 of the resonator 2, said ring 31 having its lower portion turned inwardly to engage and exert an inwardly directed clamping pressure upon the assembly 24-3025.
- the aforesaid carrier has provided a mounting for electron discharge device 3, it also provides means for insertion and withdrawal of electron discharge device 3 into aforesaid coaxial line assembly.
- the anode blocking capacitor is built into the lower end of said carrier.
- the DC. path from anode 6 is completed by an insulated conductive cylinder 25 to wire 33.
- a coaxial cylindrical transmission line operatively associated with said tube, said transmission line including an assembly of elements concentrically surrounding said electron discharge tube, and a tube carrying assembly integrated with said electron discharge tube and extending axially of said transmission line assembly to a point beyond the outer limits of said transmission line assembly to effect insertion and withdrawal of said electron discharge tube with said tube carrying assembly from said transmission line assembly independently of any disturbance of said transmission line assembly.
- said tube carrying assembly includes inner and outer concentric cylindrical conductors of which one conductor extends axially beyond the said transmission line assembly, and means for adjustably clamping the other conductor to said electron discharge tube.
- said tube carrying assembly includes inner and outer concentric cylindrical conductors of which one conductor extends axially beyond the said transmission line assembly, means for adjustably clamping the other conductor to said electron discharge tube and a dielectric material positioned about the outer periphery of the inner conductor to interpose capacitance coupling between said electron discharge tube and said coaxial transmission line assembly.
- said tube carrying assembly includes inner and outer concentric cylindrical conductors of which said outer conductor extends axially beyond the said transmission line assembly, means for adjustably clamping said inner conductor to said electron discharge tube, means positioned about outer periphery of said inner conductor to interpose capacitance coupling between said electron discharge tube and said coaxial transmission line assembly, and means constituted in part by said inner conductor for feeding direct current to the anode of said electron discharge tube.
- a pair of coaxial cavity resonators external to but operatively associated with said tube, means for coupling the input and output of said device to said resonators, the first resonator being coupled between the grid and cathode of said tube, the second resonator between the grid and 4 anode of said tube, the said pair of cavity resonators each including inner and outer conductors of which said inner conductor has an inside diameter larger than the outside diameter of said electron discharge tube to effect insertion and withdrawal of said electron discharge tube by axial telescoping of said tube into and out of said inner conductor, and a tube carrying assembly integrated with said electron discharge tube to insert and withdraw the said electron discharge tube with said integrated tube carrying assembly into said combination of resonators by way of said inner conductor.
- a pair of coaxial cavity resonators external to but operatively associated with said tube, means for coupling the input and output of said tube to said resonators, the first resonator being coupled between the grid and cathode of said tube, the second resonator between the grid and anode of said tube, the said pair of cavity resonators each including inner and outer conductors, and a tube carrier assembly interlocked with said electron discharge tube to insert and withdraw the said electron discharge device in unitary fashion with said tube carrying assembly independently of said inner conductor of said second cavity resonator, said inner conductor of said second resonator having an inside diameter larger than the outside diameter of said tube carrying assembly in order to effect the insertion and withdrawal of said electron discharge tube with said tube carrying assembly by axial telescoping of said electron discharge tube with said tube carrying assembly into and out of said inner conductor.
- a pair of coaxial cavity resonators external to but operatively associated with said tube, means for coupling the input and output of said tube to said resonators, the first resonator being coupled between the grid and cathode of said tube, the second resonator between the grid and anode of said tube, the said pair of cavity resonators each including a pair of concentric inner and outer cylindrical conductors, and a tube carrying assembly integrated with said electron discharge tube for insertion and withdrawal of said electron discharge device into and out of said second cavity resonator by way of said inner conductor of said second cavity resonator, said inner conductor having an inside diameter larger than the outside diameter of said tube carrying assembly to effect insertion and withdrawal of said electron discharge tube by axial telescoping of said electron discharge tube integrated with said tube carrying assembly into said inner conductor.
- said tube carrying assembly includes inner and outer concentric cylindrical conductors of which said outer conductor extends axially beyond said second cavity resonator, means for adjustably clamping said inner conductor to said electron discharge tube, dielectric means positioned about the outer periphery of said inner conductor to interpose capacitive coupling between said anode of said electron discharge tube and said outer conductor, and means for feeding direct current to said anode of said electron discharge tube by way of said inner conductor.
- a pair of coaxial cavity resonators external to but operatively associated with said tube, means for coupling the input and output of said tube to said resonators, the first resonator being coupled between the grid and cathode of said tube, the second resonator between the grid and anode of said tube, the said pair of cavity resonators each including inner and outer conductors and tube carrying assembly to insert and withdraw said electron discharge tube by way of said second cavity resonator, said tube carrying assembly including inner and outer concentric cylindrical conductors of which said outer concentric conductor extends axially beyond said second cavity resonator, means for adjustably clamping said inner concentric conductor to said electron discharge tube, dielectric means positioned about outer periphery of said inner concentric conductor to interpose capacitance coupling between said electron discharge tube and said second cavity resonator, and means constituted in part by said inner concentric conductor for feeding direct current to the anode of said electron discharge tube.
- a pair of coaxial cavity resonators external to and operatively associated with said tube, means for coupling the input and output of said tube to said resonators, the first resonator being coupled between the grid and cathode of said tube, the second resonator between the grid and anode of said tube, the said pair of cavity resonators each including a pair of concentric inner and outer cylindrical conductors, tube carrying assembly for insertion and withdrawal of said eelctron discharge tube into said second cavity resonator by way of said inner conductor of said second cavity resonator, said tube carrying assembly including inner and outer telescopic cylindrical conductors of which said outer telescopic conductor extends axially beyond said cavity resonator upon complete insertion into said cavity resonator, means for adjustably clamping said inner telescopic conductor to said electron discharge tube, dielectric means positioned about the outer periphery of said inner telescopic conductor to interpose capacitance coupling between said
- An electron discharge tube carrying assembly comprising inner and outer concentric cylindrical conductors of which said outer conductor extends axially beyond said inner conductor, means for adjustably clamping said inner conductor to said electron discharge tube, dielectric means positioned about the outer periphery of said inner conductor so that said inner and outer concentric conductors coact with said dielectric means to operate as a capacitor, and means for feeding direct current to the anode of said electron discharge tube by way of said inner conductor.
Description
United States Patent HIGH FREQUENCY ELECTRON DISCHARGE DEVICE Arthur C. Stacker, Collingswood, N.J., assignor to the United States of America as represented by the Secretary of the Air Force Application June 20, 1957, Serial No. 667,060
12 Claims. (Cl. 31544) This invention relates to very high frequency electron discharge devices, and more particularly to a coaxial transmission line assembly for such a device.
One object of the invention is to reduce the magnitude of mechanical stress and strain imposed upon an electron discharge device incident to its insertion and withdrawal in a coaxial transmission line assembly.
Another object of this invention is to provide an improved coaxial transmission line assembly whereinthe associated high frequency electron discharge device may be inserted and withdrawn without disturbing the remainder of the assembly.
A further object of the invention is to provide a simple tuning structure for a coaxial line assembly utilizing an electron discharge device wherein the anode blocking capacitor for the said device may be removed without disturbing the associatedcoaxial transmission line.
Another object of this invention is to provide a coaxial transmission line assembly aifording isolation for the anode element of the electron discharge device so that the reception by said anode element of the DC. voltage developed in said device, produces no reactive effects along any associated conductive elements of the aforesaid assembly.
Transmitters and receivers in the very high frequency range frequently use electron discharge devices in the socalled grounded grid circuit wherein the grid is the electron discharge element common to both' input and output circuits, the input signal being applied between grid and cathode and the output signal being removed between grid and anode. In the high frequency range it is also common practice to use resonant coaxial transmission lines astuned circuits.
Coaxial transmission line assemblies, as heretofore known, have various disadvantages. In one assembly the anode line is constructed around the outside ofa cathode line. In such an assembly the high voltage is exposedand-it is difficult to provide RF. and power connectionsto. the tuned circuits. In other arrangements it is necessarytoremove one of the coaxial lines in order to insert orwithdraw the electron discharge device associated therewith.
The present invention provides unitary, interlocking means associated with a resonant coaxial transmission line'in such a manner as to permit insertion and withdrawal of an electrondischarge device therethrough. The said unitary means includes a carrier to transmit the mechanical stress and strain incident to insertion and withdrawal, the carrier being left in place while the electron discharge device is operating in the coaxial line assembly.
To permit operating the exposed end of the carrier with direct current at zero potential, the anode blocking capacitor is built into the lower end of the carrier. The electron discharge device is mountedin the carrier and then inserted into the coaxial line assembly. The R.F. component of anode current passes through the anode ice capacitor to the outside surface of the carrier and then to the center conductor of the aforesaid assembly.
For a better understanding of the invention, together with other and further objects, advantages and capabilities thereof, reference is made to the following description of the embodiment illustrated in the single figure of the accompanying drawing, which is a longitudinal sectional view of a resonant coaxial transmission line assembly embodying the invention.
The resonant coaxial transmission line is comprised of a pair of cylindrical cavity resonators 1 and 2 respectively, for electronic discharge tube 3 which is utilized in a grounded grid circuit wherein grid 4 of electron discharge device 3 is common to both input and output circuits. The input being applied between grid 4 and cathode 8 and output being removed between grid 4 and anode 6. Resonator 1 is utilized as a resonator for grid 4 and cathode 8 of device 3 and resonator 2 utilized as a resonator for grid 4 and anode 6.
Resonator 1 is comprised of outer conductive cylinders 7 and inner conductive cylinder 8, respectively. The terminating end of resonator 1 is short-circuited by adjustable annular'piston 9. The other terminating end of resonator 1 is completed by means of annular conductive disc 10. Annular conductive disc 11 has a plurality of conductive fingers 12 contacting grid flange 4 which is separated from annular disc 10 by annular dielectric disc 13, thus forming a capacitor. The R.F. energy from grid. 4 is thereby coupled to outer conductive cylinder 7. Cathode 5 is capacitively coupled to inner conductive cylinder 8 by means of annular conductive disc 14, annular dielectric disc 15 and annular conductive disc 16 having a. plurality of conductive fingers contacting cathode flange S. Outer cylinder 7 is electrically connected to inner cylinder 8 by adjustable annular shorting piston 9.- Cylinders 7 and 8 are heldin concentric mechanical inter-relationship by annular disc shaped end member 17 and disc 22 performs the same function as between elements 20 and 21. Direct current connection. to grid 4 is completed by way of wire 18- and to cathode 5 by way of wire 19.
Resonator 2 is comprised of outer conductive cylinder 20 and inner conductive cylinder 21 which are electrically interconnected by way of adjustable annular shorting piston 23. The other terminating end is common to both resonator 1 and 2 and is annular conductive disc 10. Grid 4 is capacitively coupled to outer cylinder 20 by way of annular conductive disc 10, annular dielectric disc 13 and annular conductive disc 11 having a plurality of conductive fingers 12 contacting the aforementioned-v grid 4. Inner conductive cylinder 21 is made of suflicient diameter so that it permits the insertion and withdrawalof a carrier with electron discharge device rigidly mounted at one end. The carrier is comprised of two concentric conductive cylinders 24 and 25 of which the outer cylinder 24 extends axially beyond the plane of terminating disc 22 while the inner cylinder '25 terminates in a threaded portion 27 adapted to receive a fitting 28 serving to mechanically seecure anode flange of electron discharge device 3 in adjustable relation thereto, there beingan inner shoulder 29 formed internally of cylinder 25 to cooperate with fitting 28 in this securing operation. Resonator 2 also includes cooling air duct 32 to provide means to dissipate heat from discharge device 3.
In order to establish the desired capacitancerelation ship between the cylinders 24 and 25 a dielectric material, such as sheet mica or its equivalent, is wrapped about the outer periphery of cylinder 25 as indicated at cylinder 25 and the inner surface of cylinder 24 thus effecting a unitary organization consisting of the two cylinders 2425 and the interposed dielectric material 30. To further insure maintenance of the components of this assembly in the indicated relationships there may be included a multi-fingered conducting ring 31 depending from the lower portion of the inner wall 21 of the resonator 2, said ring 31 having its lower portion turned inwardly to engage and exert an inwardly directed clamping pressure upon the assembly 24-3025.
It will thus be seen the aforesaid carrier has provided a mounting for electron discharge device 3, it also provides means for insertion and withdrawal of electron discharge device 3 into aforesaid coaxial line assembly. In addition the anode blocking capacitor is built into the lower end of said carrier. The DC. path from anode 6 is completed by an insulated conductive cylinder 25 to wire 33. When electron discharge device 3 and said associated carrier are inserted, the RF. component of anode current passes through the said capacitor to the outside surface of conductive cylinder 24 and thence by contact fingers 31 to the outside surface of inner conductive cylinder 21, thereby forming the electrical circuit for resonator 2.
While there has been shown and described a preferred embodiment of the present invention, it will become obvious to those skilled in the art that various changes and modifications may be made therein without departing from the invention as defined by the appended claims.
What is claimed is:
1. In combination with an electron discharge tube, a coaxial cylindrical transmission line operatively associated with said tube, said transmission line including an assembly of elements concentrically surrounding said electron discharge tube, and a tube carrying assembly integrated with said electron discharge tube and extending axially of said transmission line assembly to a point beyond the outer limits of said transmission line assembly to effect insertion and withdrawal of said electron discharge tube with said tube carrying assembly from said transmission line assembly independently of any disturbance of said transmission line assembly.
2. The combination as set forth in claim 1 wherein said tube carrying assembly includes inner and outer concentric cylindrical conductors of which one conductor extends axially beyond the said transmission line assembly, and means for adjustably clamping the other conductor to said electron discharge tube.
3. The combination as set forth in claim 1 wherein said tube carrying assembly includes inner and outer concentric cylindrical conductors of which one conductor extends axially beyond the said transmission line assembly, means for adjustably clamping the other conductor to said electron discharge tube and a dielectric material positioned about the outer periphery of the inner conductor to interpose capacitance coupling between said electron discharge tube and said coaxial transmission line assembly.
4. The combination as set forth in claim 1 wherein said tube carrying assembly includes inner and outer concentric cylindrical conductors of which said outer conductor extends axially beyond the said transmission line assembly, means for adjustably clamping said inner conductor to said electron discharge tube, means positioned about outer periphery of said inner conductor to interpose capacitance coupling between said electron discharge tube and said coaxial transmission line assembly, and means constituted in part by said inner conductor for feeding direct current to the anode of said electron discharge tube.
5. In combination with an electron discharge tube, a pair of coaxial cavity resonators external to but operatively associated with said tube, means for coupling the input and output of said device to said resonators, the first resonator being coupled between the grid and cathode of said tube, the second resonator between the grid and 4 anode of said tube, the said pair of cavity resonators each including inner and outer conductors of which said inner conductor has an inside diameter larger than the outside diameter of said electron discharge tube to effect insertion and withdrawal of said electron discharge tube by axial telescoping of said tube into and out of said inner conductor, and a tube carrying assembly integrated with said electron discharge tube to insert and withdraw the said electron discharge tube with said integrated tube carrying assembly into said combination of resonators by way of said inner conductor.
6. In combination with an electron discharge tube, a pair of coaxial cavity resonators external to but operatively associated with said tube, means for coupling the input and output of said tube to said resonators, the first resonator being coupled between the grid and cathode of said tube, the second resonator between the grid and anode of said tube, the said pair of cavity resonators each including inner and outer conductors, and a tube carrier assembly interlocked with said electron discharge tube to insert and withdraw the said electron discharge device in unitary fashion with said tube carrying assembly independently of said inner conductor of said second cavity resonator, said inner conductor of said second resonator having an inside diameter larger than the outside diameter of said tube carrying assembly in order to effect the insertion and withdrawal of said electron discharge tube with said tube carrying assembly by axial telescoping of said electron discharge tube with said tube carrying assembly into and out of said inner conductor.
7. In combination with an electron discharge tube, a pair of coaxial cavity resonators external to but operatively associated with said tube, means for coupling the input and output of said tube to said resonators, the first resonator being coupled between the grid and cathode of said tube, the second resonator between the grid and anode of said tube, the said pair of cavity resonators each including a pair of concentric inner and outer cylindrical conductors, and a tube carrying assembly integrated with said electron discharge tube for insertion and withdrawal of said electron discharge device into and out of said second cavity resonator by way of said inner conductor of said second cavity resonator, said inner conductor having an inside diameter larger than the outside diameter of said tube carrying assembly to effect insertion and withdrawal of said electron discharge tube by axial telescoping of said electron discharge tube integrated with said tube carrying assembly into said inner conductor.
8. The combination as set forth in claim 7 wherein the last-named means includes retention means for adjustably clamping the cavity resonator to said electron discharge tube.
9. The combination as set forth in claim 7 wherein said tube carrying assembly includes inner and outer concentric cylindrical conductors of which said outer conductor extends axially beyond said second cavity resonator, means for adjustably clamping said inner conductor to said electron discharge tube, dielectric means positioned about the outer periphery of said inner conductor to interpose capacitive coupling between said anode of said electron discharge tube and said outer conductor, and means for feeding direct current to said anode of said electron discharge tube by way of said inner conductor.
10. In combination with an electron discharge tube, a pair of coaxial cavity resonators external to but operatively associated with said tube, means for coupling the input and output of said tube to said resonators, the first resonator being coupled between the grid and cathode of said tube, the second resonator between the grid and anode of said tube, the said pair of cavity resonators each including inner and outer conductors and tube carrying assembly to insert and withdraw said electron discharge tube by way of said second cavity resonator, said tube carrying assembly including inner and outer concentric cylindrical conductors of which said outer concentric conductor extends axially beyond said second cavity resonator, means for adjustably clamping said inner concentric conductor to said electron discharge tube, dielectric means positioned about outer periphery of said inner concentric conductor to interpose capacitance coupling between said electron discharge tube and said second cavity resonator, and means constituted in part by said inner concentric conductor for feeding direct current to the anode of said electron discharge tube.
11. In combination with an electron discharge tube, a pair of coaxial cavity resonators external to and operatively associated with said tube, means for coupling the input and output of said tube to said resonators, the first resonator being coupled between the grid and cathode of said tube, the second resonator between the grid and anode of said tube, the said pair of cavity resonators each including a pair of concentric inner and outer cylindrical conductors, tube carrying assembly for insertion and withdrawal of said eelctron discharge tube into said second cavity resonator by way of said inner conductor of said second cavity resonator, said tube carrying assembly including inner and outer telescopic cylindrical conductors of which said outer telescopic conductor extends axially beyond said cavity resonator upon complete insertion into said cavity resonator, means for adjustably clamping said inner telescopic conductor to said electron discharge tube, dielectric means positioned about the outer periphery of said inner telescopic conductor to interpose capacitance coupling between said electron discharge tube and said outer telescopic conductor, means constituted in part by said inner telescopic conductor for feeding direct current to the anode of said electron discharge tube, and means attached to said inner conductor of said second cavity resonator to direct an inward clamping pressure against said tube carrying assembly upon insertion into said inner conductor of said second cavity resonator.
12. An electron discharge tube carrying assembly comprising inner and outer concentric cylindrical conductors of which said outer conductor extends axially beyond said inner conductor, means for adjustably clamping said inner conductor to said electron discharge tube, dielectric means positioned about the outer periphery of said inner conductor so that said inner and outer concentric conductors coact with said dielectric means to operate as a capacitor, and means for feeding direct current to the anode of said electron discharge tube by way of said inner conductor.
References Cited in the file of this patent UNITED STATES PATENTS 2,472,721 'Nergaard June 7, 1949 2,530,836 Mumford Nov. 21, 1950 2,574,012 Bonne et a1. Nov. 6, 1951 2,589,246 Grimm Mar. 18, 1952 2,666,160 Bowie Ian. 12, 1954 2,752,524 Martin June 26, 1956 2,816,245 Coeterier Dec. 10, 1957 2,828,438 McArthur Mar. 25, 1958 FOREIGN PATENTS 658,747 Great Britain Oct. 10, 1951
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US667060A US2895076A (en) | 1957-06-20 | 1957-06-20 | High frequency electron discharge device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US667060A US2895076A (en) | 1957-06-20 | 1957-06-20 | High frequency electron discharge device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2895076A true US2895076A (en) | 1959-07-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US667060A Expired - Lifetime US2895076A (en) | 1957-06-20 | 1957-06-20 | High frequency electron discharge device |
Country Status (1)
| Country | Link |
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| US (1) | US2895076A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3133253A (en) * | 1959-05-01 | 1964-05-12 | Hughes Aircraft Co | Microwave amplifier with heat dissipating means |
| US3193779A (en) * | 1963-03-27 | 1965-07-06 | Charles A Beaty | Frequency selective amplifier having frequency responsive positive feedback |
| US4302705A (en) * | 1978-09-22 | 1981-11-24 | Thomson-Csf | Capacitive coupling device for an electron tube |
| US6304033B1 (en) * | 1993-12-18 | 2001-10-16 | U.S. Philips Corporation | Electron beam tube having a DC power lead with a damping structure |
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| US658747A (en) * | 1898-11-11 | 1900-10-02 | Anilin Fabrikation Ag | Compound of gelatin and tannin and process of producing same. |
| US2472721A (en) * | 1945-03-16 | 1949-06-07 | Rca Corp | Electron discharge device employing cavity resonator circuits |
| US2530836A (en) * | 1949-07-01 | 1950-11-21 | Bell Telephone Labor Inc | Grounded grid microwave modulator |
| US2574012A (en) * | 1942-09-15 | 1951-11-06 | Csf | Electron discharge tube and circuit arrangement therefor |
| US2589246A (en) * | 1944-12-29 | 1952-03-18 | Us Sec War | Oscillator |
| US2666160A (en) * | 1946-06-24 | 1954-01-12 | Sylvania Electric Prod | Disk seal tube |
| US2752524A (en) * | 1945-12-13 | 1956-06-26 | Edward G Martin | Oscillator tube cavity tuner |
| US2816245A (en) * | 1951-05-29 | 1957-12-10 | Philips Corp | Device for producing ultra-short waves |
| US2828438A (en) * | 1947-06-26 | 1958-03-25 | Gen Electric | Electric discharge devices |
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1957
- 1957-06-20 US US667060A patent/US2895076A/en not_active Expired - Lifetime
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US658747A (en) * | 1898-11-11 | 1900-10-02 | Anilin Fabrikation Ag | Compound of gelatin and tannin and process of producing same. |
| US2574012A (en) * | 1942-09-15 | 1951-11-06 | Csf | Electron discharge tube and circuit arrangement therefor |
| US2589246A (en) * | 1944-12-29 | 1952-03-18 | Us Sec War | Oscillator |
| US2472721A (en) * | 1945-03-16 | 1949-06-07 | Rca Corp | Electron discharge device employing cavity resonator circuits |
| US2752524A (en) * | 1945-12-13 | 1956-06-26 | Edward G Martin | Oscillator tube cavity tuner |
| US2666160A (en) * | 1946-06-24 | 1954-01-12 | Sylvania Electric Prod | Disk seal tube |
| US2828438A (en) * | 1947-06-26 | 1958-03-25 | Gen Electric | Electric discharge devices |
| US2530836A (en) * | 1949-07-01 | 1950-11-21 | Bell Telephone Labor Inc | Grounded grid microwave modulator |
| US2816245A (en) * | 1951-05-29 | 1957-12-10 | Philips Corp | Device for producing ultra-short waves |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3133253A (en) * | 1959-05-01 | 1964-05-12 | Hughes Aircraft Co | Microwave amplifier with heat dissipating means |
| US3193779A (en) * | 1963-03-27 | 1965-07-06 | Charles A Beaty | Frequency selective amplifier having frequency responsive positive feedback |
| US4302705A (en) * | 1978-09-22 | 1981-11-24 | Thomson-Csf | Capacitive coupling device for an electron tube |
| US6304033B1 (en) * | 1993-12-18 | 2001-10-16 | U.S. Philips Corporation | Electron beam tube having a DC power lead with a damping structure |
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