US2222752A - Loop antenna - Google Patents
Loop antenna Download PDFInfo
- Publication number
- US2222752A US2222752A US276725A US27672539A US2222752A US 2222752 A US2222752 A US 2222752A US 276725 A US276725 A US 276725A US 27672539 A US27672539 A US 27672539A US 2222752 A US2222752 A US 2222752A
- Authority
- US
- United States
- Prior art keywords
- loop
- antenna
- stand
- members
- loop antenna
- 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
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T403/00—Joints and connections
- Y10T403/29—Rotarily connected, differentially translatable members, e.g., turn-buckle, etc.
- Y10T403/291—Rotarily connected, differentially translatable members, e.g., turn-buckle, etc. having tool-engaging means or operating handle
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/20—Control lever and linkage systems
- Y10T74/20396—Hand operated
- Y10T74/20402—Flexible transmitter [e.g., Bowden cable]
- Y10T74/20408—Constant tension sustaining
Definitions
- This invention relates to loop antennae for radiocommunication sets and particularly for movable radiocommunication sets and has for its object a loop antenna which consists of a selfsustaining wire loop having means for stiffening it under operative conditions for the purpose of preventing it from undergoing variations in its inductance as an effect of Variations in shape which said loop may undergo under the effect of vibrations; in the antenna of this invention the antenna loop stiffening means are also operative t0 adjust the conguration of the antenna loop when in operative position and accordingly to impart to it a desired inductance within certain ranges.
- the antenna of this invention is provided with tensionable tie members connected with the self-sustaining loop in proper locations thereof and also with normally stationary parts which may be located on the set with which said antenna cooperates, and said tensionable tie members provide for applying to the loop such actions as may be necessary t0 hold it in a predetermined configuration; on the other hand by said tensionable tie members the configuration of the antenna loop and the flux interlinking with said antenna may be modiiied, with consequent variation in the magnitude of the inductance thereof.
- FIG. 1 is an elevation of the antenna in cooperation with a radiocommunication set
- Fig. 2 is a plan view thereof.
- the antenna includes a self-sustaining Wire loop I having a sub stantially circular configuration; the ends of said loop I are engaged at 2 with a stationary stand, this stand being the top of a radio-set case 3 in the illustrated embodiment.
- Tie members 5 have one of their ends attached to the loop I at a suitable location thereof, as shown at 4, and the other ends of said tie members are connected with the stand or case 3 by tensioning means as hereinafter described; said tie members 5 thus operate to stiffen the loop I and to keep it in the desired conguration and they maintain the magnitude of the loop inductance unaected irrespective of the impacts and vibrations which may actthereon.
- Said tie members 5 and the cooperating tensioning means may also be used to alter the configuration of the loop I and consequently the magnitude of the flux interlinking therewith and the loop inductance; for such a purpose the tie members 5 are operated by said tensioning members t0 develop on the loop I an action sufficient to modify its coniiguration and consequently the area it circumscribes.
- the ends of the tie members 5 opposed to their ends by which they are attached at 4 to the loop I extend over guide sheaves 6 mounted on the loop stand 3 and are connected with sliders 'I arranged to move along dove-tail guide means 8 also arranged on said stand.
- Said sliders 'I are actuated by a screw rod il having its end portions screw-threaded in opposite directions and engaging similarly screw threaded holes of the respective sliders 'I and an intermediate nger knob I0 is provided on said rod 9 for its manipulation to shift the sliders 'I in order to adjust the action imparted by the tie members 5 to the antenna loop I at the point 1l thereof, the loop conguration and its inductance being thus adjusted.
- a loop antenna for radiocommunication sets comprising a stand, a self-sustaining flexible conductor of arcuate conguration, means fastening the ends of said arcuate conductor on said stand, and ties each having one of its ends connected with said arcuate conductor, slidable members on said stand, each of said ties having the other one of its ends connected with one of said slidable members, and means for adjusting said members for stiffening said arcuate conductor and imparting a predetermined conguration thereto.
- a loop antenna for radio communication sets comprising a stand, a self sustaining flexible conductor of arcuate configuration, means fastening the ends of said arcuate conductor on said stand, and two ties each having one of its ends connected with an intermediate point of said arcuate conductor, slidable members mounted on said stand near said fastening means, each of said ties having the other one of its ends connected with one of said slidable members, and manipulating means acting on said slidable mernbers for their actuation in opposite directions for stiffening said arcuate conductor and imparting to the same a predetermined coniiguration.
Description
Nov. 26, 194:0.. G. .ioNTi-GUARMER: 2,222,752
LOOP ANTENNA Filed May 3l, 1939 Patented Nov. 26, 1940 UNITED STATES PATENT OFFICE LOOP ANTENNA Application May 31, 1939, Serial No. 276,725
In Italy June 3, 1938 2 Claims.
This invention relates to loop antennae for radiocommunication sets and particularly for movable radiocommunication sets and has for its object a loop antenna which consists of a selfsustaining wire loop having means for stiffening it under operative conditions for the purpose of preventing it from undergoing variations in its inductance as an effect of Variations in shape which said loop may undergo under the effect of vibrations; in the antenna of this invention the antenna loop stiffening means are also operative t0 adjust the conguration of the antenna loop when in operative position and accordingly to impart to it a desired inductance within certain ranges.
More particularly in a preferred embodiment thereof the antenna of this invention is provided with tensionable tie members connected with the self-sustaining loop in proper locations thereof and also with normally stationary parts which may be located on the set with which said antenna cooperates, and said tensionable tie members provide for applying to the loop such actions as may be necessary t0 hold it in a predetermined configuration; on the other hand by said tensionable tie members the configuration of the antenna loop and the flux interlinking with said antenna may be modiiied, with consequent variation in the magnitude of the inductance thereof.
An embodiment of this invention is illustrated by Way of example on the annexed drawing and Fig. 1 is an elevation of the antenna in cooperation with a radiocommunication set; Fig. 2 is a plan view thereof.
In the illustrated embodiment the antenna includes a self-sustaining Wire loop I having a sub stantially circular configuration; the ends of said loop I are engaged at 2 with a stationary stand, this stand being the top of a radio-set case 3 in the illustrated embodiment.
Said tie members 5 and the cooperating tensioning means may also be used to alter the configuration of the loop I and consequently the magnitude of the flux interlinking therewith and the loop inductance; for such a purpose the tie members 5 are operated by said tensioning members t0 develop on the loop I an action sufficient to modify its coniiguration and consequently the area it circumscribes.
In the illustrated embodiment the ends of the tie members 5 opposed to their ends by which they are attached at 4 to the loop I, extend over guide sheaves 6 mounted on the loop stand 3 and are connected with sliders 'I arranged to move along dove-tail guide means 8 also arranged on said stand. Said sliders 'I are actuated by a screw rod il having its end portions screw-threaded in opposite directions and engaging similarly screw threaded holes of the respective sliders 'I and an intermediate nger knob I0 is provided on said rod 9 for its manipulation to shift the sliders 'I in order to adjust the action imparted by the tie members 5 to the antenna loop I at the point 1l thereof, the loop conguration and its inductance being thus adjusted.
Of course the present invention is not restricted to the details of the described embodiment and the means suggested for adjusting the loop coniiguration and inductance may be altered through wide ranges within the spirit of appended claims.
What I claim as my invention and desire to secure by United States Letters Patent is:
1. A loop antenna for radiocommunication sets comprising a stand, a self-sustaining flexible conductor of arcuate conguration, means fastening the ends of said arcuate conductor on said stand, and ties each having one of its ends connected with said arcuate conductor, slidable members on said stand, each of said ties having the other one of its ends connected with one of said slidable members, and means for adjusting said members for stiffening said arcuate conductor and imparting a predetermined conguration thereto.
2. A loop antenna for radio communication sets comprising a stand, a self sustaining flexible conductor of arcuate configuration, means fastening the ends of said arcuate conductor on said stand, and two ties each having one of its ends connected with an intermediate point of said arcuate conductor, slidable members mounted on said stand near said fastening means, each of said ties having the other one of its ends connected with one of said slidable members, and manipulating means acting on said slidable mernbers for their actuation in opposite directions for stiffening said arcuate conductor and imparting to the same a predetermined coniiguration.
GAETANO MON'I'I-GUARNIERI.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT214055X | 1938-06-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
US2222752A true US2222752A (en) | 1940-11-26 |
Family
ID=11181276
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US276725A Expired - Lifetime US2222752A (en) | 1938-06-03 | 1939-05-31 | Loop antenna |
Country Status (5)
Country | Link |
---|---|
US (1) | US2222752A (en) |
CH (1) | CH214055A (en) |
DE (1) | DE719067C (en) |
FR (1) | FR855500A (en) |
GB (1) | GB529470A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2419311A (en) * | 1944-12-19 | 1947-04-22 | Emile B Bigue | Antenna |
US2787857A (en) * | 1953-10-02 | 1957-04-09 | Donald E Schlegelmilch | Adjustable reel clamp for fishing rods |
US2825386A (en) * | 1954-11-17 | 1958-03-04 | Western Electric Co | Universal bending mandrel utilizing connecting cable |
US3051952A (en) * | 1958-06-02 | 1962-08-28 | Sylvania Electric Prod | U.h.f. loop antenna |
US3284801A (en) * | 1964-01-15 | 1966-11-08 | John J Bryant | Large loop antenna |
-
1938
- 1938-08-23 DE DEF85522D patent/DE719067C/en not_active Expired
-
1939
- 1939-05-31 FR FR855500D patent/FR855500A/en not_active Expired
- 1939-05-31 US US276725A patent/US2222752A/en not_active Expired - Lifetime
- 1939-06-01 CH CH214055D patent/CH214055A/en unknown
- 1939-06-01 GB GB16144/39A patent/GB529470A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2419311A (en) * | 1944-12-19 | 1947-04-22 | Emile B Bigue | Antenna |
US2787857A (en) * | 1953-10-02 | 1957-04-09 | Donald E Schlegelmilch | Adjustable reel clamp for fishing rods |
US2825386A (en) * | 1954-11-17 | 1958-03-04 | Western Electric Co | Universal bending mandrel utilizing connecting cable |
US3051952A (en) * | 1958-06-02 | 1962-08-28 | Sylvania Electric Prod | U.h.f. loop antenna |
US3284801A (en) * | 1964-01-15 | 1966-11-08 | John J Bryant | Large loop antenna |
Also Published As
Publication number | Publication date |
---|---|
GB529470A (en) | 1940-11-21 |
DE719067C (en) | 1942-03-27 |
FR855500A (en) | 1940-05-11 |
CH214055A (en) | 1941-03-31 |
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