US2187584A - High frequency energy line - Google Patents
High frequency energy line Download PDFInfo
- Publication number
- US2187584A US2187584A US138113A US13811337A US2187584A US 2187584 A US2187584 A US 2187584A US 138113 A US138113 A US 138113A US 13811337 A US13811337 A US 13811337A US 2187584 A US2187584 A US 2187584A
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- Prior art keywords
- conductor
- inner conductor
- insulating
- outer conductor
- high frequency
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B11/00—Communication cables or conductors
- H01B11/18—Coaxial cables; Analogous cables having more than one inner conductor within a common outer conductor
- H01B11/1873—Measures for the conductors, in order to fix the spacers
Definitions
- the present invention are provided with two grooves into which elastic metal rings are placed whose external distance of the outside diameter and width of the ring is smaller than the diameter of the inner conductor of the energy line, so that when the metal rings abut against ilat seats or depressions provided at the inner conductor, the electric field will not be altered.
- the flat portions are produced by depressing the borders of the bores of the inner conductor.
- Fig. 1 is a longitudinal view of a concentric conductor
- Flg. 2 is a cross-section of Fig. 1;
- Fig. 3 is a detail of an insulating spacer
- Fig. 4 is a detail of a corrugated tube
- Fig. 5 is a detail of a spiral ring.
- tubular outer conductor I there extends a insulated in approximately equal distances against the outer conductor by means of two insulating rods 3 and 4 passed through the inner conductor closely spaced from and arranged at right angle to each other and resting with their ends on the inside of the outer conductor.
- the borders of the bores of the inner conductor are pressed inwardly so that round seat-like depressions are obtained.
- two grooves 5 are provided on the insulating rods at a distance A from each other. The distance A is always made smaller than the diameter D of the inner conductor, so that the maximum overall dimension of rings 6 will not exceed the outside diameter of tube 2.
- the split spring-like metal rings 6 are inserted which rest tightly against grooves in the insulating rods, as well as against the sunken-in edges of the bores.
- 'Ihe grooves 5 are preferably metallized so that between the inner conductor and the insulating rod no air gaps can appear.
- the metal rings may be formed of corrugated tubings or wire spirals as shown by Figs. 4 and 5, respectively. They serve in the first place to-assure a. corona safe abutting of the insulating rods against the inner conductor. In View of the fact that the all-over distance between the metal rings is smaller than the diameter of the inner conductor, no increases in the field strength between inner conductor and outer conductor appear. Furthermore, the metal rings have the task of mechanically securing the insulating rods in place and preventing a displacement of the inner conductor.
- a concentric high frequency line for the transmission of high voltages comprising an inner' and an outer conductor, means for spacing said conductors apart, said means comprising a plurality of insulating members arranged to pass through apertures in flattened portions on said inner conductor, a groove on each one of said insulating members, and an elastic member co-operating with the groove on each insulating member to secure them on said flattened portions of the inner conductor so that the electric field between said inner and outer conductor is not altered.
- a ⁇ concentric high frequency line for the transmission of high voltages comprising an inner and an outer conductor, means for spacing said conductors apart, said means comprising a plurality of insulating members arranged in groups to pass through apertures in flattened portions on said inner conductor, a groove on each one of said insulating members, and an elastic member co-operating with the groove on each insulating member to secure them on said flattened portions of the inner conductor so that the electric field between said inner and outer conductor is not altered.
- a concentric high frequency line for the transmission of high voltages comprising an inner and an outer conductor, means for spacing said conductors apart, said means comprising aA plurality of insulating members arranged in pairs to pass through apertures in flattened portions on said inner conductona groove o n I each one of said insulating members, and an elastic member co-operating with the said groove on ,each insulating member to secure themon said flattened portions of the inner conductor so that the electric field between said inner and outer conductors is not altered.
- a concentric high frequency line for the transmission of high voltages comprising an inner and an outer conductor, means for spacing said conductors apart, said means comprising a plurality of insulating members arranged in pairs locatedat right angles from each other to ⁇ pass through apertures in flattened portions on said inner conductor, a groove on each one of said insulating members, and an elastic member co-operating with the groove on each insulated member to secure them on said flattened portions of the inner conductor so that electric field between said inner and outer conductor is not altered.
- a concentric high frequency line for the transmission 'of high voltages comprising an inner vand an outer conductor, means for spacing said conductors apart, said means comprising a plurality of insulating members arranged in groups to pass through apertures in iiattened portions on said inner conductor, a pair of annular grooves on each insulating member, and an elastic metal ring co-operating with each one of said grooves on said insulating members to secure them on said attened portions of the inner conductor so 'that the electric eld betweensaid inner and outer conductor is not altered.
- a concentric high frequency ⁇ line for the transmission of high voltages comprising an inner and an outer conductor, means for spacing said conductors apart, said means comprising a plurality of insulating members arranged to pass through apertures in iiattened portions on said inner conductor, an annular groove having a metallized surface on each one of said insulating members, and an elastic metal ring co-operating with the grooves on each one of said insulating members to secure them on said attened portions of the inner conductor so that the electric field between said inner and outer conductor is not altered.
- a concentric high frequency line for the 'transmission of high voltages comprising an inner and an outer conductor, means for spacing said conductors apart, said means comprising a plurality of insulating members arranged to pass through apertures in flattened portions on said inner conductor, a groove on each one of said insulating members, and an elastic metallic wirel spiral co-operating with the groove on each one of said insulating members to secure them on said fiattened portions of the inner conductor so that the electric field between said inner and outer conductor is not altered.
- a concentric high frequency line for the transmissionI of high voltages comprising an inner and an outer conductor, said inner conductor having a plurality of attened portions thereon, an aperture located in each flattened portion, said apertures arranged in pairs, a pair of apertures being closely adjacent another pair but angularly disposed to each other, a plurality of insulating members located in said apertures, each member having grooves thereon, elastic means located to rest on said iiattened portions, said means cooperating with the grooves on said insulating members 'to space said conductors apart so that the electric field between said inner and outer conductor is not altered.
- a concentric high frequency .line for the transmission of high voltages comprising an inner and an outer conductor, means for spacing said conductors apart, said means comprising a plurality of insulating members arranged to pass through apertures in flattened portions on said inner rconductor; an annular groove on each one of said insulating members, and an elastic metallic corrugated tube co-operating with the groove on each insulating member to secure theml on said iiattened portions of the inner conductor so that the electric field between said inner and outer conductor is not altered.
- a concentric high frequency line for thel transmission of high voltages comprising an inner and an outer conductor, means for spacing said conductors apart, said means comprising a plurality of insulating members passing through apertures in said inner conductor and arranged to pass through said ⁇ apertures located on iiat tened portions on said inner conductor, an annular groove on each one of said insulating members,and an elastic metal ring co-operating with the groove on each insulating member to secure them' on said attened portions of the inner conductor so that'the electric field between said inner and outer conductor is not altered.
- a concentrichigh frequency line for the transmission of high voltages comprising an inner and an outer conductor, means for spacing'- said conductors apart, said means comprising a pair of insulating members arranged at right angles from each other and passing through apertures in said inner conductor, said apertures located at fiattened portions on said inner con-- ductor, an annular groove on each one of said insulating members, andan elastic metal ring cooperating with each groove on each insulating member to secure them on said flattened portions 'of the inner conductor so that the electric field between said inner and outer conductor is not altered.
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Description
Jan. 16, 1940. A GOTHE 2,187,584
HIGH FREQUENCY ENERGY LINE Filed April 21, 1937 Referring now in detail to the drawing, with- Patented Jan. 16, 1940 NlTl-:D STATES PATENT OFFICE HIGH FREQUENCY ENERGY LINE Albrecht Gothe, Berlin, Germany, assignor to i Telefunken Gesellschaft fr Drahtlose Telegraphie m. b. H., Berlin, Germany, a corporation of Germany Application April 21, 1937, Serial No. 138,113
, In Germany April 6, 1936 11 Claims.
In concentric high frequency energy lines as known in the prior art, diiiiculties are frequently encountered due to the construction of the insulation retained by the inner conductor and bearing against the outer conductor, causing corona eilects to occur at high voltages. If the two concentric conductors are to be insulated in the manner known in the prior art, for example by means of disks or rings, the latter must be securely fastened to the inner conductor, otherwise, at the existing air gaps very high eld intensities would appear, giving rise to undesired corona eiects. 'I'he manufacture of concentric transmission lines as known inthe prior art with the use of insulating disks or rings involves a problem which makes it very diiiicult to prevent corona effects and the construction is quite expensive.
It has been proposed to maintain the distance between the inner conductor and the outer c onductor by means of insulating rods which are passed through an ordinarily tubular inner conductor and rest with their ends against the inside oi the outer conductor. Also, in this case there is the danger of corona effects between the insulating rods and the edges of the bores of the inner conductor through which the rods are mechanically inserted. In order to avoid the danger of corona eiects in such concentric lines insulated by means of rods, the rods according to.
the present invention are provided with two grooves into which elastic metal rings are placed whose external distance of the outside diameter and width of the ring is smaller than the diameter of the inner conductor of the energy line, so that when the metal rings abut against ilat seats or depressions provided at the inner conductor, the electric field will not be altered. The flat portions are produced by depressing the borders of the bores of the inner conductor.
The invention will be elucidated by Figs. 1 to 5, inclusive of the drawing, in which:
Fig. 1 is a longitudinal view of a concentric conductor;
Flg. 2 is a cross-section of Fig. 1;
Fig. 3 is a detail of an insulating spacer;
Fig. 4 is a detail of a corrugated tube; and
Fig. 5 is a detail of a spiral ring.
'Qin the tubular outer conductor I there extends a insulated in approximately equal distances against the outer conductor by means of two insulating rods 3 and 4 passed through the inner conductor closely spaced from and arranged at right angle to each other and resting with their ends on the inside of the outer conductor. The borders of the bores of the inner conductor are pressed inwardly so that round seat-like depressions are obtained. On the insulating rods at a distance A from each other, two grooves 5 are provided. The distance A is always made smaller than the diameter D of the inner conductor, so that the maximum overall dimension of rings 6 will not exceed the outside diameter of tube 2. Into these grooves 5 the split spring-like metal rings 6 are inserted which rest tightly against grooves in the insulating rods, as well as against the sunken-in edges of the bores. 'Ihe grooves 5 are preferably metallized so that between the inner conductor and the insulating rod no air gaps can appear. The metal rings may be formed of corrugated tubings or wire spirals as shown by Figs. 4 and 5, respectively. They serve in the first place to-assure a. corona safe abutting of the insulating rods against the inner conductor. In View of the fact that the all-over distance between the metal rings is smaller than the diameter of the inner conductor, no increases in the field strength between inner conductor and outer conductor appear. Furthermore, the metal rings have the task of mechanically securing the insulating rods in place and preventing a displacement of the inner conductor.
The Figures 1 and 2 of the drawing indicate that the inner conductor together with the insulating rods form a separate mechanically sturdy structure which can be separately produced and subsequently inserted into the outer conductor.
What is claimed is:
l. A concentric high frequency line for the transmission of high voltages comprising an inner' and an outer conductor, means for spacing said conductors apart, said means comprising a plurality of insulating members arranged to pass through apertures in flattened portions on said inner conductor, a groove on each one of said insulating members, and an elastic member co-operating with the groove on each insulating member to secure them on said flattened portions of the inner conductor so that the electric field between said inner and outer conductor is not altered.
2. A `concentric high frequency line for the transmission of high voltages comprising an inner and an outer conductor, means for spacing said conductors apart, said means comprising a plurality of insulating members arranged in groups to pass through apertures in flattened portions on said inner conductor, a groove on each one of said insulating members, and an elastic member co-operating with the groove on each insulating member to secure them on said flattened portions of the inner conductor so that the electric field between said inner and outer conductor is not altered.
3. A concentric high frequency line for the transmission of high voltages comprising an inner and an outer conductor, means for spacing said conductors apart, said means comprising aA plurality of insulating members arranged in pairs to pass through apertures in flattened portions on said inner conductona groove o n I each one of said insulating members, and an elastic member co-operating with the said groove on ,each insulating member to secure themon said flattened portions of the inner conductor so that the electric field between said inner and outer conductors is not altered.
4.. A concentric high frequency line for the transmission of high voltages comprising an inner and an outer conductor, means for spacing said conductors apart, said means comprising a plurality of insulating members arranged in pairs locatedat right angles from each other to `pass through apertures in flattened portions on said inner conductor, a groove on each one of said insulating members, and an elastic member co-operating with the groove on each insulated member to secure them on said flattened portions of the inner conductor so that electric field between said inner and outer conductor is not altered.
5. A concentric high frequency line for the transmission 'of high voltages comprising an inner vand an outer conductor, means for spacing said conductors apart, said means comprising a plurality of insulating members arranged in groups to pass through apertures in iiattened portions on said inner conductor, a pair of annular grooves on each insulating member, and an elastic metal ring co-operating with each one of said grooves on said insulating members to secure them on said attened portions of the inner conductor so 'that the electric eld betweensaid inner and outer conductor is not altered.
6. A concentric high frequency `line for the transmission of high voltages comprising an inner and an outer conductor, means for spacing said conductors apart, said means comprising a plurality of insulating members arranged to pass through apertures in iiattened portions on said inner conductor, an annular groove having a metallized surface on each one of said insulating members, and an elastic metal ring co-operating with the grooves on each one of said insulating members to secure them on said attened portions of the inner conductor so that the electric field between said inner and outer conductor is not altered.
7. A concentric high frequency line for the 'transmission of high voltages comprising an inner and an outer conductor, means for spacing said conductors apart, said means comprising a plurality of insulating members arranged to pass through apertures in flattened portions on said inner conductor, a groove on each one of said insulating members, and an elastic metallic wirel spiral co-operating with the groove on each one of said insulating members to secure them on said fiattened portions of the inner conductor so that the electric field between said inner and outer conductor is not altered.
8. A concentric high frequency line for the transmissionI of high voltages comprising an inner and an outer conductor, said inner conductor having a plurality of attened portions thereon, an aperture located in each flattened portion, said apertures arranged in pairs, a pair of apertures being closely adjacent another pair but angularly disposed to each other, a plurality of insulating members located in said apertures, each member having grooves thereon, elastic means located to rest on said iiattened portions, said means cooperating with the grooves on said insulating members 'to space said conductors apart so that the electric field between said inner and outer conductor is not altered.
9. A concentric high frequency .line for the transmission of high voltages comprising an inner and an outer conductor, means for spacing said conductors apart, said means comprising a plurality of insulating members arranged to pass through apertures in flattened portions on said inner rconductor; an annular groove on each one of said insulating members, and an elastic metallic corrugated tube co-operating with the groove on each insulating member to secure theml on said iiattened portions of the inner conductor so that the electric field between said inner and outer conductor is not altered. 10. A concentric high frequency line for thel transmission of high voltages comprising an inner and an outer conductor, means for spacing said conductors apart, said means comprising a plurality of insulating members passing through apertures in said inner conductor and arranged to pass through said` apertures located on iiat tened portions on said inner conductor, an annular groove on each one of said insulating members,and an elastic metal ring co-operating with the groove on each insulating member to secure them' on said attened portions of the inner conductor so that'the electric field between said inner and outer conductor is not altered.
l1. A concentrichigh frequency line for the transmission of high voltages comprising an inner and an outer conductor, means for spacing'- said conductors apart, said means comprising a pair of insulating members arranged at right angles from each other and passing through apertures in said inner conductor, said apertures located at fiattened portions on said inner con-- ductor, an annular groove on each one of said insulating members, andan elastic metal ring cooperating with each groove on each insulating member to secure them on said flattened portions 'of the inner conductor so that the electric field between said inner and outer conductor is not altered.
ALBRECHT GOTHE.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2187584X | 1936-04-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2187584A true US2187584A (en) | 1940-01-16 |
Family
ID=7989175
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US138113A Expired - Lifetime US2187584A (en) | 1936-04-06 | 1937-04-21 | High frequency energy line |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2187584A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2428001A (en) * | 1944-08-31 | 1947-09-23 | Ernest A Tubbs | Output cable for signal generators |
| US2437482A (en) * | 1942-12-07 | 1948-03-09 | Nasa | High-frequency electrical transmission line |
| US2445380A (en) * | 1944-02-16 | 1948-07-20 | Girdler Corp | Coaxial transmission line |
| US20150083387A1 (en) * | 2013-09-24 | 2015-03-26 | Harris Corporation | Rf antenna assembly with spacer and sheath and related methods |
| US9322256B2 (en) | 2013-03-14 | 2016-04-26 | Harris Corporation | RF antenna assembly with dielectric isolator and related methods |
| US9377553B2 (en) | 2013-09-12 | 2016-06-28 | Harris Corporation | Rigid coaxial transmission line sections joined by connectors for use in a subterranean wellbore |
-
1937
- 1937-04-21 US US138113A patent/US2187584A/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2437482A (en) * | 1942-12-07 | 1948-03-09 | Nasa | High-frequency electrical transmission line |
| US2445380A (en) * | 1944-02-16 | 1948-07-20 | Girdler Corp | Coaxial transmission line |
| US2428001A (en) * | 1944-08-31 | 1947-09-23 | Ernest A Tubbs | Output cable for signal generators |
| US9322256B2 (en) | 2013-03-14 | 2016-04-26 | Harris Corporation | RF antenna assembly with dielectric isolator and related methods |
| US9377553B2 (en) | 2013-09-12 | 2016-06-28 | Harris Corporation | Rigid coaxial transmission line sections joined by connectors for use in a subterranean wellbore |
| US20150083387A1 (en) * | 2013-09-24 | 2015-03-26 | Harris Corporation | Rf antenna assembly with spacer and sheath and related methods |
| US9376899B2 (en) * | 2013-09-24 | 2016-06-28 | Harris Corporation | RF antenna assembly with spacer and sheath and related methods |
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