US2640115A - Electrical switch - Google Patents

Electrical switch Download PDF

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Publication number
US2640115A
US2640115A US224045A US22404551A US2640115A US 2640115 A US2640115 A US 2640115A US 224045 A US224045 A US 224045A US 22404551 A US22404551 A US 22404551A US 2640115 A US2640115 A US 2640115A
Authority
US
United States
Prior art keywords
pair
chamber
connectors
inner conductor
transmission line
Prior art date
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.)
Expired - Lifetime
Application number
US224045A
Other languages
English (en)
Inventor
Carl W Concelman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hazeltine Research Inc
Original Assignee
Hazeltine Research Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hazeltine Research Inc filed Critical Hazeltine Research Inc
Priority to US224045A priority Critical patent/US2640115A/en
Priority to GB6321/52A priority patent/GB702363A/en
Priority to CH305583D priority patent/CH305583A/de
Priority to DEH12322A priority patent/DE968606C/de
Priority to AT178649D priority patent/AT178649B/de
Priority to FR1055316D priority patent/FR1055316A/fr
Application granted granted Critical
Publication of US2640115A publication Critical patent/US2640115A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/10—Auxiliary devices for switching or interrupting
    • H01P1/12—Auxiliary devices for switching or interrupting by mechanical chopper
    • H01P1/125—Coaxial switches

Definitions

  • the present invention relates to electrical Switches for selectively connecting a first highfrequency coaxial transmission line to either of a pair of such lines.
  • One prior switch selectively connects a first transmission line to any of a plurality of other transmission lines by selectively connecting and disconnecting both the inner and outer conductors of each of the lastmentioned transmission lines and the corresponding conductors of the first transmission line.
  • Other prior switches selectively connect and disconnect only the inner conductors of the transmission lines.
  • the switch includes a pair of coaxial connectors for individual connection to the aforesaid pair of transmission lines and having outer conductors conductively connected to the chamber walls and extending therefrom in substantially the same plane and having inner conductors extending into the aforesaid chamber.
  • the switch also include a third coaxial connector for connection to the aforesaid first transmission line and having an outer conductor conductively connected to the chamber walls and extending therefrom substantially normal to the aforesaid plane and having an inner conductor extending into the above-mentioned chamber.
  • the chamber walls having portions which are effectively tangential to the outer conductors of the aforesaid pair of connectors and have a dimension normal to the above-mentioned plane which is approximately equal to the diameter of the outer conductors of the aforesaid pair of connectors.
  • the switch also includes a movable selector mounted on the support for conductively connecting the inner conductor of the third connector to the inner conductor of either of the above-mentioned pair of connectors.
  • Fig. 1 is an exploded elevational view, partly in section, of an electrical switch constructed in accordance with a particular form of the invention
  • Fig. 2 is an end elevational view of a portion of the switch as seen along the line 2-2 of Fig. 1.
  • the switch It includes a support comprising a cup-shaped housing I2 having a stepped axial bore I5, a notched member I3 (shown in Fig. 2), and a cylindrical cover I4 for the housing I2, all constructed of a suitable material such as brass which is then silver-plated.
  • the housing I2 includes a mounting flange I6 at the mouth of the bore I5.
  • the notched member I3 preferably is essentially cylindrical with a wedge-shaped notch therein as illustrated in Fig. 2.
  • the member I3 is adapted to be positioned in the bore I5 of the housing I2 by any suitable means such as by silver oldering.
  • the cover I4 is attached to the housing I2 in a manner to be described subsequently, the housing It, the notched member I3 and the cover I4 form a wedge-shaped chamber I I defined by conductive walls 20 and 2
  • Wall I8 is disposed at an acute angle with reference to the wall I9 and arcuate wall 50 connects corresponding ends of the walls I8 and I9.
  • the connectors 22 and 23 have inner conductors 26 and 2?, respectively, which preferably extend into the enlarged portion of the chamber II. More particularly, the connectors 22 and 23 extend radially from the housing I2 at substantially the aforesaid acute angle relative to each other.
  • the connectors 22 and 23 may be of any suitable type and may, for example, comprise connectors of the type described and claimed in Patent No. 2,540,012, entitled Electrical Connector, granted January 30, 1951 to O. M. Salati.
  • the switch also includes a third coaxial connector 28, which is similar to the connectors 22 and 23 as may more clearly be seen in Fig. 1, for connection to a first transmission line.
  • the connector 28 has an outer conductor 29 conductively connected to the housing I2, and hence to the chamber wall 29, and extends therefrom substantially normal to the aforesaid plane. More particularly, the connector 28 extends axially from the support l2 and includes an inner conductor 30 which extends into the reduced portion of the chamber IT as may be seen in Fig. 2. It will be understood that the inner conductors of the three connectors 22, 23 and 2B are spaced from the outer conductors thereof by suitable bodies of dielectric material, such as insulators 3
  • the walls of the chamber ll are effectively tangential to the outer conductors 24 and 25 of the pair of connectors 22 and 23, respectively.
  • effectively tangential it is meant that portions of the chamber walls lie in planes which are substantially tangent to the outer conductors of the above-mentioned pair of connectors.
  • the chamber walls l8, I9 and 59 are effectively tangential to the outer conductors of the three connectors 22, 23 and 28, respectively.
  • the chamber walls also have an axial dimension a normal to the plane of the pair of connectors 22 and 23 and which is approximately equal to the diameter of the outer conductors 24 and 25 of the connectors 22 and 23.
  • the cylindrical cover I4 represented in Fig. 1 preferably has an axial bore 33 therein at one end thereof and is of reduced diameter at the other end thereof so that the cover I4 may be nested in the axial bore I5 of the housing
  • a conductive wall 34 of the cover I4 then forms the remaining wall of the chamber IT.
  • the switch I also includes a movable selector mounted on the cover I4 for conductively connecting the inner conductor 30 of the third connector 28 to the inner conductor of either of the pair of connectors 22 and 23.
  • the movable selector comprises a member 35 rotatably mounted in an aperture in the cover 14. One end of the rotatable member 35 is hollow and has a kerf 52 therein for a purpose to be explained subsequently.
  • a body of dielectric material 36 such as polystyrene, is attached to the other end of the member 35 as by a screw 31.
  • a metallic washer 38 is positioned intermediate the dielectric material 36 and the conductive wall 34.
  • a resilient leaf spring 39 of a suitable conductive material such as beryllium copper is attached to the body of dielectric material 36 by a rivet 40.
  • includes a rotatable shaft 4
  • a flat coil spring 43 is attached to the shaft 4
  • the solenoid may be energized by the application of a suitable energizing potential to a pair of input terminals 45, 45 thereof.
  • extends through the solenoid II and may be utilized manually to rotate the member 35.
  • may be locked together by any suitable means such as three screws 46 (only one of which may be seen in Fig. 1 of the drawing) which may be passed through corresponding bores 41, 48 and 49 (see also Fig. 2) in the mounting flange l6 of the housing I2, the cover, I4 and the solenoid II, respectively.
  • the metallic parts of the switch I0 may be formed from cylindrical members which lend themselves to fabrication by inexpensive screwmachine operations.
  • the various bores and apertures of the housing l2 and the cover H are formed quickly and conveniently by screw machine operations.
  • the outer conductors 24, 25 and 29 of the connectors 22, 23 and 28, respectively, may be made in a similar manner and the inner conductors thereof may then be assembled and held in a spaced coaxial relation with the respective outer conductors by insulators.
  • the members l3 and 35 may be made by a simple screw machine and milling operation and the leaf spring 39 may be fabricated by a simple stamping operation.
  • the manufacture of the electrical switch It) lends itself to mass production techniques and the cost thereof is relatively small.
  • the characteristic impedance of a high-frequency wave-signal coaxial transmission line is related to the inner diameter of the outer conductor of the transmission line and the outer diameter of the inner conductor thereof. Similar considerations apply to the characteristic impedance of the transmission line effectively formed by the conductive walls of the chamber l1 and the leaf spring 39. Accordingly, the enlarged portion of the wedge-shaped chamber preferably is maintained as small as practicable in order to minimize any impedance discontinuity between the transmission line attached to the connector 2'2'01' 23 and the transmission line attached tothe connector 28', the connectors 22, 23- and- 28 being effective to provide an approximate impedance match between the transmission lines attached thereto and the transmission line formed by the chamber l1 and the leaf spring 33.
  • the dimension as of the chamber walls l8 and i9 is so proportioned as to be approximately equal to the diameter of the outer conductors 24 and 25 of the connectors 22 and 23, respectively.
  • the thickness and width of the leaf spring 39 may then be selected approximately to provide a desired capacitance between the leaf spring and the chamber walls and thus approximately to provide an impedance match between the transmission line connected to the connector 22 or 23 and the transmission line connected to the connector 28.
  • An electrical switch for selectively con.- necting a first high-frequency Wave-signal coaxial transmission line to either of a pair of such lines comprising: a support having a charm ber defined by conductive walls; a pair of coaxial connectors for individual connection to said pair of transmission lines and having outer conductors conductively connected to said chamber Walls and extending therefrom in substantially the same plane and having inner conductors extending into said chamber; a third coaxial connector for connection to said first transmission line and having an outer conductor conductively connected to said chamber Walls and extending therefrom substantially normal to said plane and having an inner conductor extending into said chamber; said chamber Walls having portions which are effectively tangential to said outer conductors of said pair of connectors and having a dimension normal to said plane which is approximately equal to the diameter of said outer conductors of said pair of connectors; and a movable selector mounted on said support for concluotively connecting said inner conductor of said third connector to the inner conductor of either of said pair'of con nectors- 2.
  • An electrical switch for selectively connecting a first high fre'quency wave-signal coaxial transmission line to either of a pair of such lines comprising: a cylindrical support having a chamber defined by conductive walls; a pair of coaxial connectors for individual connection to said pair of transmission lines and having outer conductors conductively connected to said chamber walls and extending radially from said support in substantially the same plane and having inner conductors extending into said chamber; a third coaxial connector for connection to said first transmission line and having an outer conductor conductively connected to said chamber walls and extending axially from said support and having an inner conductor extending into said chamber; said chamber Walls having portions which are effectively tangential to said outer conductors of said pair of connectors and having an axial dimension which is approximately equal to the diameter of said outer conductors of said pairof connectors; and a movable selector mounted on said support for conductively connecting said inner conductor of said third connector to the inner conductor of either of said pair of connectors.
  • An electrical switch for selectively connecting a first high-frequency wave-signal coaxial transmission line to either of a pair of such lines comprising: a cylindrical support having a Wedge-shaped chamber defined by conductive walls; a pair of coaxial connectors for individual connection to said pair of transmission lines and having outer conductors conductively connected to said chamber walls and extending radially from said support in substantially the same plane and having inner conductors extending into the enlarged portion of said chamber; a third coaxial connector for connec tion to said first transmission line and having an outer conductor conductively connected to said chamber walls and extending axially from said support and having an inner conductor extending into the reduced portion of said chamber; said chamber walls having portions which are effectively tangential to said outer conductors of said three connectors and having an axial dimension which is approximately equal to the diameter of said outer conductors of said pair of connectors; and a movable selector mounted on said support for conductively connecting said inner conductor of said third connector to the inner conductor of either of said pair of
  • An electrical switch for selectively connecting a first high-frequency wave signal coaxial transmission line to either of a pair of such lines comprising: a support having a chamber defined by conductive walls, two of which are disposed at an acute angle; a pair of coaxial connectors for individual connection to said pair of transmission lines and having outer conductors con" ductively connected to said chamber walls and extending therefrom in substantially the same plane and at substantially said acute angle relative to each other and having inner conductors extending into said chamber; a third coaxial connector for connection to said first transmission line and having an outer conductor conductively connected to said chamber walls and extending therefrom substantially normal to said plane and having an inner conductor extending into said chamber; said two of said chamber walls being efiectively tangential to said outer conductors of said pair of connectors and having a dimension normal to said plane which is approximately equal to the diameter of said outer conductors of said pair of connectors; and a movable selector mounted on said support for conductively connecting said inner conductor of said third connector to the inner
  • An electrical switch for selectively connecting a first high-frequency wave-signal coaxial transmission line to either of a' pair of such lines comprising: a support having a chamber defined by conductive Walls; a pair of coaxial connectors for individual connection to said pair of transmission lines and having outer conductors conductively connected to said chamber walls and extending therefrom in substantially the same plane and having inner conductors extending into said chamber; a third coaxial connector for connection to said first transmission line and having an outer conductor conductively connected to said chamber walls and extending therefrom substantially normal to said plane and having an inner conductor extending into said chamber; said chamber walls having portions which are effectively tangential to said outer conductors of said pair of connectors and having a dimension normal to said plane which is approximately equal to the diameter of said outer conductors of said pair of connectors; and a movable selector including a conductive leaf spring positioned in said chamber and rotatably mounted on said support for conductively connecting said inner conductor of said third connector to the inner conductor of either of said pair

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)
  • Waveguide Switches, Polarizers, And Phase Shifters (AREA)
  • Switches That Are Operated By Magnetic Or Electric Fields (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
US224045A 1951-05-01 1951-05-01 Electrical switch Expired - Lifetime US2640115A (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US224045A US2640115A (en) 1951-05-01 1951-05-01 Electrical switch
GB6321/52A GB702363A (en) 1951-05-01 1952-03-11 Electrical switch for selectively connecting coaxial transmission lines
CH305583D CH305583A (de) 1951-05-01 1952-04-25 Elektrischer Umschalter.
DEH12322A DE968606C (de) 1951-05-01 1952-04-27 Elektrischer Umschalter zum wahlweisen Verbinden einer koaxialen Hochfrequenzleitung mit einer von zwei anderen derartigen Leitungen
AT178649D AT178649B (de) 1951-05-01 1952-04-28 Elektrischer Umschalter
FR1055316D FR1055316A (fr) 1951-05-01 1952-04-30 Inverseur électrique

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US224045A US2640115A (en) 1951-05-01 1951-05-01 Electrical switch

Publications (1)

Publication Number Publication Date
US2640115A true US2640115A (en) 1953-05-26

Family

ID=22839074

Family Applications (1)

Application Number Title Priority Date Filing Date
US224045A Expired - Lifetime US2640115A (en) 1951-05-01 1951-05-01 Electrical switch

Country Status (6)

Country Link
US (1) US2640115A (de)
AT (1) AT178649B (de)
CH (1) CH305583A (de)
DE (1) DE968606C (de)
FR (1) FR1055316A (de)
GB (1) GB702363A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2751467A (en) * 1953-06-30 1956-06-19 Matthew R Alexy High voltage, high frequency apparatus
US3114118A (en) * 1960-11-21 1963-12-10 Amphenol Borg Electronics Corp Rotary switch having improved crosstalk and matching characteristics

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2924677A (en) * 1958-11-20 1960-02-09 Don Lan Electronics Co Inc High frequency switching unit
US3009117A (en) * 1959-04-02 1961-11-14 Don Lan Electronics Co Inc Miniature wave guide switch
NL269260A (de) * 1961-06-12
DE1212603C2 (de) * 1962-01-16 1973-02-01 Georg Spinner Dipl Ing Gabelartiger Umschalter fuer Koaxialeitungen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2408779A (en) * 1940-11-27 1946-10-08 Sperry Gyroscope Co Inc High-frequency coaxial distributor and system
US2413298A (en) * 1943-07-01 1946-12-31 Gen Electric Ultra high frequency switch
US2426186A (en) * 1942-06-10 1947-08-26 Rca Corp Ultra high frequency switch
US2565643A (en) * 1947-10-15 1951-08-28 Designers For Industry Inc Electric switch

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE911629C (de) * 1943-12-22 1954-05-17 Atlas Werke Ag Schalter fuer Ultrakurzwellenleitungen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2408779A (en) * 1940-11-27 1946-10-08 Sperry Gyroscope Co Inc High-frequency coaxial distributor and system
US2426186A (en) * 1942-06-10 1947-08-26 Rca Corp Ultra high frequency switch
US2413298A (en) * 1943-07-01 1946-12-31 Gen Electric Ultra high frequency switch
US2565643A (en) * 1947-10-15 1951-08-28 Designers For Industry Inc Electric switch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2751467A (en) * 1953-06-30 1956-06-19 Matthew R Alexy High voltage, high frequency apparatus
US3114118A (en) * 1960-11-21 1963-12-10 Amphenol Borg Electronics Corp Rotary switch having improved crosstalk and matching characteristics

Also Published As

Publication number Publication date
DE968606C (de) 1958-03-13
FR1055316A (fr) 1954-02-17
AT178649B (de) 1954-05-25
GB702363A (en) 1954-01-13
CH305583A (de) 1955-02-28

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