US3102265A - New aerial system radiating several beams - Google Patents
New aerial system radiating several beams Download PDFInfo
- Publication number
- US3102265A US3102265A US181A US18160A US3102265A US 3102265 A US3102265 A US 3102265A US 181 A US181 A US 181A US 18160 A US18160 A US 18160A US 3102265 A US3102265 A US 3102265A
- Authority
- US
- United States
- Prior art keywords
- reflector
- horn
- reflectors
- major
- parallel
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q19/00—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic
- H01Q19/10—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces
- H01Q19/12—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave
- H01Q19/17—Combinations of primary active antenna elements and units with secondary devices, e.g. with quasi-optical devices, for giving the antenna a desired directional characteristic using reflecting surfaces wherein the surfaces are concave the primary radiating source comprising two or more radiating elements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q25/00—Antennas or antenna systems providing at least two radiating patterns
- H01Q25/001—Crossed polarisation dual antennas
Definitions
- the invention relates to Wave radiating systems employing several antennas, each radiating a beam of energy of different polarization.
- antennas have made use of a source associated with an elongated, preferably elliptical, reflector where the ratio between length and cross dimensions is comparatively great.
- the object of the invention is to designa system-radiating more than two flat beams, which is not too. bulky.
- a further object is to provide at least one pair of orthogonally polarized waves from reflectors which are fed with waves that are not orthogonally polarized.
- reflectors of an antenna array produce two waves respectively, whose polarization planes are perpendicular although the polarization planes of the waves emitted by the sources associated with such reflectors are not perprovide an pendicular angle 2 ⁇ ? (FIG. 4).
- a polarization shift network is provided to make the polarization planes of the wavesreaching the reflectors perpendicular. It is known that the polarization plane of the waves emitted by such a polarization shift network is different from the polarization plane of the incident waves entering the polarization shift network from the source.
- the rotation angle of the polarization plane of these waves is 20:.
- the radiating system covered by this invention has only two antennas, that is to say in the simplest case, the
- second antenna can be identical with the first; it can also While the novel and distinctive features of the inven- 3 ,lfl'2,265 Patented Aug. 27, 1963 "too tion are particularly pointed out in the appended claims, a more expository treatment of the invention, in principle and in detail, together with additional objects and advantages thereof, is afforded-by the following description and accompanying drawings in which;
- FIG. 1 is a view in perspective of an aerial system with a dual antenna and a simple antenna for a radio detection system with three beams.
- the aerial is protected against weather influences by an inflatable radome shown in partial cutaway representation,
- FIG. 2 is a view in larger scale of one of the sources of the dual antenna used according to the invention.
- FIG. 3 is a schematic rear view of the reflectors of the radiating system shown in FIG. 1, as seen by an observer looking in the direction of arrow A (FIG. 1),
- FIG. 4 is a schematic front view at a different scale of the sources provided in front of the reflectors.
- FIGS. 1 and 2 the. respective orientations of the two reflectors and two sources of the dual antenna differ from those shown in FIGS. 3 and 4, due to the fact that the former are related to a front view whereas the latter relate to a rear view.
- FIG. 5 is a schematic rear view of an aerial system with four antennas
- FIG. 6 is a schematic front view at different scale of the sources providedin front of the reflectors.
- Theaerial system 1 of FIG. 1 is supported by apedestal 2 with three legs and protected against weather influences, for example by means of an inflatable radome 3. It consists essentially of three antennas 4, Sand '6. These are formed by threereflectors 7, 8, and 9-, connectedrespectively to the three feeds. or waveguide, horns 10, 11 .and 12, fed by guides 13, 14, 15, one end of which ends at the distributor 16. The assembly of reflectors 7, 8 and 9 is supported by a jointed structure 17 attached to turntable 18. t
- the surfaces of the three reflectors 7, 8, 9 are parts of paraboloids of revolution with elliptic boundary lines.
- the long transverse axes of reflectors 7 and 8 form an X; they .are slightly inclined in relation to a horizontal line and between themselves form an angle 25 which is also the angle of the short transverse axes.
- the parts of the reflectors which overlap are formed by an array (19 or 20) of parallel elements (wire, rods or strips).
- the elements of array 19 of reflector 7 are parallel to a direction which'is inclined against the vertical at an angle of 45; they are furthermore perpendicular to the elements of .array 20. These evidently are also inclined 45 to the vertical.
- the third reflector 9, of which the long axis is horizontal, is of the classic type.
- FIG. 2 shows the horn or waveguide feed 10' connected with reflector 7.
- this wave guide feed is identical with source 11, connected with reflector 8.
- this source is formed by three flat flares 21, 22, 23 where the small parallel sides are trapezoidal, whereas the large sides are rectangular. connected with the feed guide 13 by means of two Ts, 214 and 25, and an elbow 26.
- the three flares radiate waves whose polarization planes are parallel to the small cross axis of reflector 7.
- a half-wave network 27, commonly referred to as a polarization changer, is arranged in front of the flares to rotate the polarization plane of the waves reaching reflector 7 so that it is parallel withthe elements of array 19.
- FIGS. 5 and 6 relate to an aerial system having four antennas; they correspond to views similar to those shown in FIGS. 3 and 4. It shows that this aerial system 30 has two dual antennas 31 and 32. Each of these antennas is analogous to the dual antenna of FIG. 3.
- An arrangement for communicating electromagnetic waves with a first and second polarization separated 90 from one another comprising a first and second electromagnetic wave reflector, each of said reflectors having a major and a minor axis, means for mounting said reflectors in a cross position such that their major axes make a given angle with respect to one another, each of said reflectors having a plurality of parallel electromagnetic wave reflecting elements at least where the reflectors overlap one another, the elements of one reflector being perpendicular to the elements of the other reflector, a first waveguide horn associated with said first reflector, a second waveguide horn associated with said second reflector, each of said horns having major and minor horn axes, said major axis of each horn being positioned parallel to the minor axis of the associated reflector, said given angle being different from 90 such that electromagnetic waves communicated between one horn and its associated reflector are not perpendicular to the electromagnetic waves communicated between the other horn and its associated reflector, means for rotating the polarization of electromagnetic waves associated with
- An arrangement for providing electromagnetic waves with-a first and second polarization separated from one another comprising a first, second, third, and fourth electromagnetic wave reflector, each of said reflectors having a major and a minor axis, means for mounting said refleotors in pairs such that their major axes make different given angles with respect to one another and with respect to said'desired angle, each of'said reflectors having a plurality of parallel electromagnetic wave reflecting elements at least where they overlap the other reflector in said pair, the elements of each reflector in each pair being perpendicular to the elements of the other reflector in such pair, first, second, third and fourth waveguide horns associated with said first, second, third and fourth electromagnetic wave reflectors respectively, each of said horns having major and minor feed axes, said major axis of each horn being positioned parallel to the minor axis of the associated reflector, individual means associated with each of said first, second, third and fourth horns for rotating the polarization of electromagnetic waves associated with such horns such that the
- An arrangement for transmitting electromagnetic waves with a first and second polarization separated 90- from one another comprising a first and second electromagnetic wave reflector, each of said reflectors having a major and a minor axis, means for mounting said reflectors in a cross position to form an X configuration, each of said reflectors having a plurality of parallel electromagnetic wave reflecting elements at least in the overlapping sections of said configuration, the elements of one reflector being perpendicular to the elements of the other reflector, a first electromagnetic wave feed associated with 'said first reflector, a second electromagnetic wave feed associated with said second reflector, each of said feeds having major and minor feed axes, said major axis of each feed being positioned parallel to the minor axis of the associated reflector, means for rotating the polarization of electromagnetic waves emanating from said first feed such that the resulting electromagnetic waves are.
Landscapes
- Aerials With Secondary Devices (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Toys (AREA)
- Stereo-Broadcasting Methods (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR782448A FR1219321A (fr) | 1958-12-23 | 1958-12-23 | Nouveau système rayonnant pour ondes ultra-courtes |
FR783970A FR1221812A (fr) | 1958-12-23 | 1959-01-14 | Nouvel aérien rayonnant plusieurs faisceaux |
Publications (1)
Publication Number | Publication Date |
---|---|
US3102265A true US3102265A (en) | 1963-08-27 |
Family
ID=26183709
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US181A Expired - Lifetime US3102265A (en) | 1958-12-23 | 1960-01-04 | New aerial system radiating several beams |
Country Status (6)
Country | Link |
---|---|
US (1) | US3102265A (de) |
CH (2) | CH387715A (de) |
DE (2) | DE1210464B (de) |
FR (1) | FR1221812A (de) |
GB (2) | GB938928A (de) |
NL (3) | NL246679A (de) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3242491A (en) * | 1962-12-12 | 1966-03-22 | Raytheon Co | Inverted v-beam antenna system |
JPS50110751A (de) * | 1974-02-06 | 1975-09-01 | ||
DE3402659A1 (de) * | 1984-01-26 | 1985-08-01 | Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn | Reflektorantenne fuer den betrieb in mehreren frequenzbereichen |
US4733244A (en) * | 1984-08-30 | 1988-03-22 | Messerschmitt-Boelkow-Blohm Gmbh | Polarization separating reflector, especially for microwave transmitter and receiver antennas |
US4792813A (en) * | 1986-08-14 | 1988-12-20 | Hughes Aircraft Company | Antenna system for hybrid communications satellite |
USRE34410E (en) * | 1986-08-14 | 1993-10-19 | Hughes Aircraft Company | Antenna system for hybrid communication satellite |
US20040082441A1 (en) * | 2002-10-23 | 2004-04-29 | Kastelic Edward P. | Multi-configurable exercise device |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SE412959B (sv) * | 1978-03-02 | 1980-03-24 | Saab Scania Ab | Sett att bestemma leget for ett antal foremal samt system for utforande av settet |
FR2568062B1 (fr) * | 1984-07-17 | 1986-11-07 | Thomson Alcatel Espace | Antenne bifrequence a meme couverture de zone a polarisation croisee pour satellites de telecommunications |
US4625214A (en) * | 1984-10-15 | 1986-11-25 | Rca Corporation | Dual gridded reflector structure |
DE3609078A1 (de) * | 1985-07-26 | 1987-02-05 | Messerschmitt Boelkow Blohm | Reflektoranordnung |
DE3609084A1 (de) * | 1985-07-26 | 1987-02-05 | Messerschmitt Boelkow Blohm | Reflektoranordnung |
CA1263180A (en) * | 1985-11-12 | 1989-11-21 | Rca Corporation | Linearly polarized grid reflector antenna systems with improved cross-polarization performance |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE668231C (de) * | 1935-05-26 | 1938-11-28 | Julius Pintsch Kom Ges | Reflektoranordnung |
US2790169A (en) * | 1949-04-18 | 1957-04-23 | Itt | Antenna |
FR1141476A (fr) * | 1954-11-11 | 1957-09-03 | Patelhold Patentverwertung | Système d'antennes dirigées comportant des réflecteurs de renvoi |
FR1219321A (fr) * | 1958-12-23 | 1960-05-17 | Cie Francais Thomson Houston | Nouveau système rayonnant pour ondes ultra-courtes |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE582007C (de) * | 1933-08-07 | Ernst Gerhard Dr | Anordnung zur Aussendung von mehreren voneinander unabhaengigen und verschiedenen Strahlenkegeln elektrischer Wellen | |
US2646563A (en) * | 1946-09-24 | 1953-07-21 | Us Navy | V-beam height indicator |
-
0
- NL NL247291D patent/NL247291A/xx unknown
- DE DEP1270134A patent/DE1270134B/de active Pending
- NL NL132576D patent/NL132576C/xx active
- NL NL246679D patent/NL246679A/xx unknown
-
1959
- 1959-01-14 FR FR783970A patent/FR1221812A/fr not_active Expired
- 1959-12-22 DE DEC20424A patent/DE1210464B/de active Pending
- 1959-12-23 GB GB43743/59A patent/GB938928A/en not_active Expired
- 1959-12-23 CH CH8224859A patent/CH387715A/fr unknown
-
1960
- 1960-01-04 US US181A patent/US3102265A/en not_active Expired - Lifetime
- 1960-01-14 GB GB1389/60A patent/GB938930A/en not_active Expired
- 1960-01-14 CH CH35360A patent/CH418412A/fr unknown
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE668231C (de) * | 1935-05-26 | 1938-11-28 | Julius Pintsch Kom Ges | Reflektoranordnung |
US2790169A (en) * | 1949-04-18 | 1957-04-23 | Itt | Antenna |
FR1141476A (fr) * | 1954-11-11 | 1957-09-03 | Patelhold Patentverwertung | Système d'antennes dirigées comportant des réflecteurs de renvoi |
FR1219321A (fr) * | 1958-12-23 | 1960-05-17 | Cie Francais Thomson Houston | Nouveau système rayonnant pour ondes ultra-courtes |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3242491A (en) * | 1962-12-12 | 1966-03-22 | Raytheon Co | Inverted v-beam antenna system |
JPS50110751A (de) * | 1974-02-06 | 1975-09-01 | ||
JPS5729882B2 (de) * | 1974-02-06 | 1982-06-25 | ||
DE3402659A1 (de) * | 1984-01-26 | 1985-08-01 | Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn | Reflektorantenne fuer den betrieb in mehreren frequenzbereichen |
US4733244A (en) * | 1984-08-30 | 1988-03-22 | Messerschmitt-Boelkow-Blohm Gmbh | Polarization separating reflector, especially for microwave transmitter and receiver antennas |
US4792813A (en) * | 1986-08-14 | 1988-12-20 | Hughes Aircraft Company | Antenna system for hybrid communications satellite |
USRE34410E (en) * | 1986-08-14 | 1993-10-19 | Hughes Aircraft Company | Antenna system for hybrid communication satellite |
US20040082441A1 (en) * | 2002-10-23 | 2004-04-29 | Kastelic Edward P. | Multi-configurable exercise device |
US7144351B2 (en) * | 2002-10-23 | 2006-12-05 | Kastelic Edward P | Multi-configurable exercise device |
Also Published As
Publication number | Publication date |
---|---|
GB938928A (en) | 1963-10-09 |
NL247291A (de) | |
GB938930A (en) | 1963-10-09 |
NL246679A (de) | |
FR1221812A (fr) | 1960-06-03 |
DE1210464B (de) | 1966-02-10 |
CH387715A (fr) | 1965-02-15 |
NL132576C (de) | |
DE1270134B (de) | 1968-06-12 |
CH418412A (fr) | 1966-08-15 |
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