WO1996037922A1 - Device for adjusting the beam direction of an antenna, and feed line structure therefor - Google Patents

Device for adjusting the beam direction of an antenna, and feed line structure therefor Download PDF

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Publication number
WO1996037922A1
WO1996037922A1 PCT/SE1996/000678 SE9600678W WO9637922A1 WO 1996037922 A1 WO1996037922 A1 WO 1996037922A1 SE 9600678 W SE9600678 W SE 9600678W WO 9637922 A1 WO9637922 A1 WO 9637922A1
Authority
WO
WIPO (PCT)
Prior art keywords
feed
feed line
line pattern
connection terminals
plate
Prior art date
Application number
PCT/SE1996/000678
Other languages
French (fr)
Inventor
Per-Anders Arvidsson
Stefan Andersson
Original Assignee
Allgon Ab
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 Allgon Ab filed Critical Allgon Ab
Priority to US08/750,714 priority Critical patent/US5949303A/en
Priority to AU58493/96A priority patent/AU5849396A/en
Priority to EP96920089A priority patent/EP0832508B1/en
Priority to DE69617681T priority patent/DE69617681T2/en
Priority to BR9609177A priority patent/BR9609177A/en
Priority to KR1019970708122A priority patent/KR100282999B1/en
Publication of WO1996037922A1 publication Critical patent/WO1996037922A1/en

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/26—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture
    • H01Q3/30—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array
    • H01Q3/32—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the relative phase or relative amplitude of energisation between two or more active radiating elements; varying the distribution of energy across a radiating aperture varying the relative phase between the radiating elements of an array by mechanical means

Definitions

  • the present invention concerns a device for adjusting the beam direction of a beam radiated from a stationary array of antenna elements, wherein at least two antenna element feed points are coupled to a common signal source via a feed line structure having a source connection terminal to be connected to said source and at least two feed connection terminals to be connected to said antenna element feed points, said feed line structure comprising a feed conductor line pattern disposed in a fixed planar arrangement, e.g. on a carrier plate, at a distance from and in parallel to a fixed ground plate, and a movable dielectric body located therebetween, said movable dielectric body being displaceable in parallel to said feed conductor line pattern and said ground plate so as to change the exciting phase of a signal component reaching one of said feed connection terminals.
  • the invention also concerns a feed line structure for use in an antenna or any other device requiring a controlled adjustment of the phase difference between at least two signal components derived from a radio frequency signal generated by a common source.
  • a device of the kind referred to above is previously known from JP, A, 63296402.
  • a number of triangular dielectric bodies are movable in two perpendicular directions, in each case transversely to a conductor line segment so as to enable a controlled delay of the corresponding signal component.
  • the delay is substantially proportional to the surface portion of the triangle being in registry with the associated conductor line segment. In this way, the beam can be adjusted in two mutually perpendicular directions.
  • each triangular body has relatively small dimensions in relation to the length of each conductor line leading to a feed connection terminal. Therefore, the adjustment possi ⁇ bilities are rather limited. Furthermore, in case such triangular bodies with larger dimensions were to be used, the impedance of the feed line structure would be adversely affected.
  • Another object is to achieve a feed line structure, which is easy to manufacture and convenient to operate, in particular b means of a manual control means.
  • the feed line pattern is elongated in a main direction and includes longitudinal feed line segments extending in parallel to said main direction towards each one of the feed connection terminals.
  • the dielectric body is formed substantially as a dielectric plate, which is displaceable in the main direction between two end positions. Furthermore, the dielectric plate is dimensioned and located so as to extend in a region covering supplementary portions of the longitudinal feed line segments. In this way, these supplementary portions will effect a well-defined propagation velocity reduction of the corresponding signal components before they reach the respective feed connection terminals.
  • the dielectric plate is movable in the same direction as the extension of the longitudinal feed line segments (the main direction) , the propagation velocity reduction will be very distinct and easy to control by mechanically controlling the linear movement of the dielectric plate between the two end positions.
  • the dielectric plate is continuously displaceable so as to be positioned in any desired location. In this way, the beam direction can be adjusted accordingly.
  • the source connection terminal is located at a central portion of the feed line pattern, whereas the feed connection terminals are located at opposite end portions of the pattern.
  • the dielectric plate then extends in a region als covering the central portion of the feed line pattern and it will normally have a relatively large area corresponding to at least half of the surface area of the carrier plate (or the outer contour of the feed line pattern) .
  • the dielectric plate is sub ⁇ stantially rectangular, and the feed conductor line pattern is meander-shaped. Moreover, because of the elongated structure o the meander-shaped pattern, the longitudinal feed line segment constitute a major part of the total length of the feed line segments in the feed conductor line pattern.
  • the feed conductor line pattern includes several meander-shaped portions with loops being branched off from each longitudinal feed line segment and including at least two further longitudinal feed line segments.
  • the dielectric plate is displaceable by means of a mechanical actuator coupled to a manually operable control means, e.g., a control knob on a rotatable axis coupled via a gear mechanism to a longitudinally guided rack, which is secured to the dielectric plate.
  • a manually operable control means e.g., a control knob on a rotatable axis coupled via a gear mechanism to a longitudinally guided rack, which is secured to the dielectric plate.
  • FIG. 1 shows schematically, in a perspective view, a feed line structure according to the invention
  • FIG. 1 illustrates, in schematic top plan views, various modifications of the feed line structure
  • Figure 3 shows, in a perspective view, a device according to the invention, including a mechanical actuator illustrated schematically;
  • Figure 4 shows, to a larger scale, a partial longitudinal section along the lines IV-IV in figure 3.
  • an especially designed feed line structure is integrated in an antenna device for adjusting the direction of a beam radiated from a stationary array of antenna elements.
  • the adjustment is achieved by controlling the respective phase angles of the signal components reaching the respective antenna element.
  • the antenna elements are positioned along a vertical row, and there is a constant phase difference between adjacent antenna elements, the resulting beam will be directed or tilted correspondingly, as is well known per se in the art.
  • the present invention relates to the feed line structure that makes such an adjustment possible.
  • a feed line structure 1 which is generally flat and which comprises an upper, stationary carrier plate 2 with a feed conductor line pattern 3 deposited thereon, a stationary bottom plate 4, serving as a ⁇ ground plane, and a movable dielectric plate 5 located therebetween.
  • the carrier plate 2 is made of a dielectric material
  • the bottom plate 4 is made of a electrically conducting material, e.g. a metal such as aluminum.
  • the feed conductor line pattern has a generally rectangular, elongated outer contour, normally even more elongated than indicated schematically in figure 1.
  • the direction of elongation is indicated in figure 1 by an arrow A, which coincides with the movement direction of the movable inter ⁇ mediate plate 5.
  • a source connection terminal 6 In the central portion of the feed conductor line pattern, there is a source connection terminal 6 to which a signal transmission line from a common source is to be connected.
  • the source connection terminal 6 is followed by a transversal, relatively short conductor line segment 7 ending in a junction point 8, from which two longitudinally extending feed line segments 9 and 10 depart in opposite directions in parallel to the main direction A.
  • feed line terminals T x and T 2 At the respective far ends of these longitudinal feed line segments 9 and 10, there are feed line terminals T x and T 2 intended to be connected to respective feed points of associated antenna elements.
  • meander- shaped loops 11 and 12 Adjacent to these feed connection terminals x and T 2 , meander- shaped loops 11 and 12 are branched off so as to form continued feed conductor line segments, including two relatively long such segments extending in parallel to the main direction A.
  • the meander-shaped loops 11 and 12 end at respective feed connection terminals T 3 and T trash intended to be connected to associated antenna element feed points.
  • the movable dielectric plate 5 has a width corresponding to the width of the carrier plate 2 and a length approximately corresponding to half the length of the carrier plate. At each transversal, shorter side edge, there is a step-like recess 13 and 14, respectively, which is dimensioned so as to minimize reflexion of the radio wave energy propagating along the feed conductor line segments 9, 10, 11 and 12.
  • the energy or signal propagation velocity will be symmetrical with respect to the central transversal conductive line segment 7.
  • the dielectric plate 5 fills the air gap between the carrier plate 2 and the ground plate 4. Therefore, the propagation velocity will be slightly lower in those portions of the conductive line segments lying above the plate 5, due to the dielectric material between the conductive line and.the ground plate.
  • phase angle differences between the signal components at feed connection terminals T 4/ T 2 , 1 and T 3 will always be the same, irrespec ⁇ tive of the particular position of the dielectric plate 5.
  • the end position 13' corresponds to an exactly horizontal direction of the composit beam radiated from four antenna elements connected to the terminals T : through T trash.
  • the signal components at the four terminals will be delayed, e.g., with phase angle shifts of 15°, 5°, -5° and - 15° (in the order T 4/ T 2 , T : and T 3 ) .
  • the angle shift will be, e.g., 30°, 10°, -10° and -30°. So, the phase angle differences between adjacent terminals will always be the same. Accordingly, the composit beam from the four antenna elements will always have a wave front in the form of a straight line. With increasing angular phase differences, the inclination of this wave front line will increase, and the beam will be gradually tilted downwards. Clearly, it is a great advantage that the uniform phase angle difference between the various feed connection terminals will be maintained in the course of a simple linear movement of the dielectric plate 5.
  • the central darker areas depict the respective dielectric plates 5, and these three plates are mechanically coupled together so as to be moved in synchronism.
  • eight antenna elements can be fed with eight different signal • components derived from a common source signal.
  • the next two examples are slightly modified embodiments with outer and central structures l'a, l'b, 20' and l"a, l''b and 20'', respectively.
  • the dielectric plates are not as wide as the carrier plate.
  • Figures 3 and 4 serve to illustrate a mechanical actuator, by means of which the dielectric plate can be displaced by manual control.
  • the feed line structure appears from figure 3 with a modified feed conductor line pattern 31, and from figure 4 with the carrier plate 32 (on which the feed conductor line pattern is deposited) , the movable dielectric plate 33 and the stationary bottom plate 34.
  • the dielectric plate 33 is mechanically connected to a longitudinally guided rack 35, the linear movement of which is controlled by a gear mechanism, with gears 36 and 37, coupled to a rotatable axis 38 with a control knob 39.
  • a gear mechanism with gears 36 and 37, coupled to a rotatable axis 38 with a control knob 39.

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Waveguide Switches, Polarizers, And Phase Shifters (AREA)

Abstract

A feed line structure (1), especially integrated with a stationary array of antenna elements so as to enable adjustment of the direction of the beam radiated from the array. The feed line structure comprises a feed conductor line pattern (3) disposed on a fixed carrier plate (2) at a distance from and in parallel to a fixed ground plate (4), and a movable dielectric plate (5) located therebetween. The feed line pattern (3) is elongated in the same direction (A) as the movement direction of the dielectric plate (5). The propagation velocity of the signal components is reduced by the dielectric plate (5), whereby a controlled phase difference between the various signal components is obtained.

Description

DEVICE FOR ADJUSTING THE BEAM DIRECTION OF AN ANTENNA, AND FEED LINE STRUCTURE THEREFOR
The present invention concerns a device for adjusting the beam direction of a beam radiated from a stationary array of antenna elements, wherein at least two antenna element feed points are coupled to a common signal source via a feed line structure having a source connection terminal to be connected to said source and at least two feed connection terminals to be connected to said antenna element feed points, said feed line structure comprising a feed conductor line pattern disposed in a fixed planar arrangement, e.g. on a carrier plate, at a distance from and in parallel to a fixed ground plate, and a movable dielectric body located therebetween, said movable dielectric body being displaceable in parallel to said feed conductor line pattern and said ground plate so as to change the exciting phase of a signal component reaching one of said feed connection terminals. The invention also concerns a feed line structure for use in an antenna or any other device requiring a controlled adjustment of the phase difference between at least two signal components derived from a radio frequency signal generated by a common source.
A device of the kind referred to above is previously known from JP, A, 63296402. A number of triangular dielectric bodies are movable in two perpendicular directions, in each case transversely to a conductor line segment so as to enable a controlled delay of the corresponding signal component. The delay is substantially proportional to the surface portion of the triangle being in registry with the associated conductor line segment. In this way, the beam can be adjusted in two mutually perpendicular directions.
However, each triangular body has relatively small dimensions in relation to the length of each conductor line leading to a feed connection terminal. Therefore, the adjustment possi¬ bilities are rather limited. Furthermore, in case such triangular bodies with larger dimensions were to be used, the impedance of the feed line structure would be adversely affected.
Against this background, it is a primary object of the present invention to achieve an adjustment device, which enables a substantial phase shift while keeping the input impedance at the source connecting terminal essentially unchanged.
Another object is to achieve a feed line structure, which is easy to manufacture and convenient to operate, in particular b means of a manual control means.
These and other objects are achieved for a device having the features stated in appended claims i and 10. Thus, according to the invention, the feed line pattern is elongated in a main direction and includes longitudinal feed line segments extending in parallel to said main direction towards each one of the feed connection terminals. The dielectric body is formed substantially as a dielectric plate, which is displaceable in the main direction between two end positions. Furthermore, the dielectric plate is dimensioned and located so as to extend in a region covering supplementary portions of the longitudinal feed line segments. In this way, these supplementary portions will effect a well-defined propagation velocity reduction of the corresponding signal components before they reach the respective feed connection terminals.
Since the dielectric plate is movable in the same direction as the extension of the longitudinal feed line segments (the main direction) , the propagation velocity reduction will be very distinct and easy to control by mechanically controlling the linear movement of the dielectric plate between the two end positions. Preferably, the dielectric plate is continuously displaceable so as to be positioned in any desired location. In this way, the beam direction can be adjusted accordingly.
Preferably, the source connection terminal is located at a central portion of the feed line pattern, whereas the feed connection terminals are located at opposite end portions of the pattern. The dielectric plate then extends in a region als covering the central portion of the feed line pattern and it will normally have a relatively large area corresponding to at least half of the surface area of the carrier plate (or the outer contour of the feed line pattern) .
In a preferred embodiment, the dielectric plate is sub¬ stantially rectangular, and the feed conductor line pattern is meander-shaped. Moreover, because of the elongated structure o the meander-shaped pattern, the longitudinal feed line segment constitute a major part of the total length of the feed line segments in the feed conductor line pattern.
In principle, there could be only two feed connection terminals, one at each end of a straight conductor line. However, most preferably, the feed conductor line pattern includes several meander-shaped portions with loops being branched off from each longitudinal feed line segment and including at least two further longitudinal feed line segments.
With such a meander-shaped configuration, it is possible to keep a predetermined relation between the phase angles of the various signal components, irrespective of the particular position of the dielectric plate.
Preferably, the dielectric plate is displaceable by means of a mechanical actuator coupled to a manually operable control means, e.g., a control knob on a rotatable axis coupled via a gear mechanism to a longitudinally guided rack, which is secured to the dielectric plate.
Further details and modifications of the feed line structure are stated in the dependent claims and will appear from the detailed description below, reference being made to the drawings. Figure 1 shows schematically, in a perspective view, a feed line structure according to the invention;
Figure 2 illustrates, in schematic top plan views, various modifications of the feed line structure;
Figure 3 shows, in a perspective view, a device according to the invention, including a mechanical actuator illustrated schematically; and
Figure 4 shows, to a larger scale, a partial longitudinal section along the lines IV-IV in figure 3.
According to the main aspect of the invention, an especially designed feed line structure is integrated in an antenna device for adjusting the direction of a beam radiated from a stationary array of antenna elements. The adjustment is achieved by controlling the respective phase angles of the signal components reaching the respective antenna element. In case the antenna elements are positioned along a vertical row, and there is a constant phase difference between adjacent antenna elements, the resulting beam will be directed or tilted correspondingly, as is well known per se in the art. The present invention relates to the feed line structure that makes such an adjustment possible.
In figure 1 there is schematically shown a feed line structure 1, which is generally flat and which comprises an upper, stationary carrier plate 2 with a feed conductor line pattern 3 deposited thereon, a stationary bottom plate 4, serving as a ■ ground plane, and a movable dielectric plate 5 located therebetween. The carrier plate 2 is made of a dielectric material, whereas the bottom plate 4 is made of a electrically conducting material, e.g. a metal such as aluminum.
The feed conductor line pattern has a generally rectangular, elongated outer contour, normally even more elongated than indicated schematically in figure 1. The direction of elongation is indicated in figure 1 by an arrow A, which coincides with the movement direction of the movable inter¬ mediate plate 5.
In the central portion of the feed conductor line pattern, there is a source connection terminal 6 to which a signal transmission line from a common source is to be connected. The source connection terminal 6 is followed by a transversal, relatively short conductor line segment 7 ending in a junction point 8, from which two longitudinally extending feed line segments 9 and 10 depart in opposite directions in parallel to the main direction A. At the respective far ends of these longitudinal feed line segments 9 and 10, there are feed line terminals Tx and T2 intended to be connected to respective feed points of associated antenna elements.
Adjacent to these feed connection terminals x and T2, meander- shaped loops 11 and 12 are branched off so as to form continued feed conductor line segments, including two relatively long such segments extending in parallel to the main direction A. The meander-shaped loops 11 and 12 end at respective feed connection terminals T3 and T„ intended to be connected to associated antenna element feed points.
The movable dielectric plate 5 has a width corresponding to the width of the carrier plate 2 and a length approximately corresponding to half the length of the carrier plate. At each transversal, shorter side edge, there is a step-like recess 13 and 14, respectively, which is dimensioned so as to minimize reflexion of the radio wave energy propagating along the feed conductor line segments 9, 10, 11 and 12.
In the centrally located position of the dielectric plate 5, drawn by full lines in figure 1, the energy or signal propagation velocity will be symmetrical with respect to the central transversal conductive line segment 7. The dielectric plate 5 fills the air gap between the carrier plate 2 and the ground plate 4. Therefore, the propagation velocity will be slightly lower in those portions of the conductive line segments lying above the plate 5, due to the dielectric material between the conductive line and.the ground plate.
When the plate 5 is displaced in the main direction A, e.g., to an end position corresponding to the dotted lines 14', the signal components propagating along the conductor line segments
10 and 12 will be delayed, more so at the feed connection terminal T4 than at the feed connection terminal T2, whereas the signal components propagating along the conductor line segments 9 and 11 will run slightly ahead, more so at the feed connection terminal T3 than at the feed connection terminal T:. On the other hand, when the plate 5 is moved in the opposite direction, to the end position indicated by the dotted lines 13', the reverse conditions will prevail, i.e. the signal components propagating along the conductor line segments 9 and
11 will be delayed, whereas the signal components propagating along the conductor line segments 10 and 12 will run ahead.
Because of the geometrical configuration, the phase angle differences between the signal components at feed connection terminals T4/ T2, 1 and T3 will always be the same, irrespec¬ tive of the particular position of the dielectric plate 5. In particular, assume that the end position 13' corresponds to an exactly horizontal direction of the composit beam radiated from four antenna elements connected to the terminals T: through T„. When the plate 5 is displaced a certain increment in the direction A, the signal components at the four terminals will be delayed, e.g., with phase angle shifts of 15°, 5°, -5° and - 15° (in the order T4/ T2, T: and T3) . Then, upon a further incremental displacement, the angle shift will be, e.g., 30°, 10°, -10° and -30°. So, the phase angle differences between adjacent terminals will always be the same. Accordingly, the composit beam from the four antenna elements will always have a wave front in the form of a straight line. With increasing angular phase differences, the inclination of this wave front line will increase, and the beam will be gradually tilted downwards. Clearly, it is a great advantage that the uniform phase angle difference between the various feed connection terminals will be maintained in the course of a simple linear movement of the dielectric plate 5.
Of course, it is possible to modify the configuration of the feed line structure with meander-shaped loops. In figure 2, a number of such modified embodiments are shown.
In the first example (at the top of figure 2) there are three separate feed line structures, of which the structures la and lb each correspond essentially to the embodiment shown in figure 1, whereas the central feed line structure 20 merely serves to feed the outer structures la and lb with their respective terminals Tl through T4 and T5 through T8.
The central darker areas depict the respective dielectric plates 5, and these three plates are mechanically coupled together so as to be moved in synchronism. In this way, eight antenna elements can be fed with eight different signal • components derived from a common source signal.
The next two examples are slightly modified embodiments with outer and central structures l'a, l'b, 20' and l"a, l''b and 20'', respectively. In the latter example, the dielectric plates are not as wide as the carrier plate.
The variation possibilities are enormous, and at the bottom of figure 2 there are two further examples of feed line structures each feeding eight feed connection terminals Tj, through T8 with a single feed line structure 21 and 21', respectively.
Figures 3 and 4 serve to illustrate a mechanical actuator, by means of which the dielectric plate can be displaced by manual control. The feed line structure appears from figure 3 with a modified feed conductor line pattern 31, and from figure 4 with the carrier plate 32 (on which the feed conductor line pattern is deposited) , the movable dielectric plate 33 and the stationary bottom plate 34.
The dielectric plate 33 is mechanically connected to a longitudinally guided rack 35, the linear movement of which is controlled by a gear mechanism, with gears 36 and 37, coupled to a rotatable axis 38 with a control knob 39. By manually turning the control knob 39, the rack 35 and the dielectric plate 33 can be longitudinally displaced to any desired position.

Claims

1. A device for adjusting the beam direction of a beam radiated from a stationary array of antenna elements, wherein at least two antenna element feed points are coupled to a common signal source via a feed line structure (1) having a source connection terminal (6) to be connected to said source and at least two feed connection terminals (T,, T2, T3, T4) to be connected to said antenna element feed points, said feed line structure comprising a feed conductor line pattern (3) disposed in a fixed planar arrangement (2) at a distance from and in parallel to a fixed ground plate (4), and a movable dielectric body (5) located therebetween, said movable dielectric body being displaceable in parallel to said feed conductor line pattern and said ground plate so as to change the exciting phase of a signal component reaching one of said feed connection terminals, c h a r a c t e r i z e d i n tha
said feed line pattern (3) is elongated in a main direction (A) , said feed line pattern (3) includes longitudinal feed line segments extending in parallel to said main direction (A) towards each one of said feed connection terminals ( 1l , T2, T3, T4), - said dielectric body is formed substantially as a di¬ electric plate (5) , which is displaceable in said main direction (A) between two end positions (13', 14'), and said dielectric plate (5) is dimensioned and located so as to extend, in any position between and including said end positions, in a region covering supplementary portions of said longitudinal feed line segments (9, 10, 11, 12) , said supplementary portions effecting a controlled propagation velocity reduction of the corresponding signal components before they reach the respective feed connection terminals (T:, T2, T3, T4) .
2. A device as defined in claim 1, c h a r a c t e r i z e d i n that said source connection terminal (6) is located at a central portion of said feed line pattern (3), - said feed connection terminals (T1; T2, T3/ T4) are located at opposite end portions of said feed line pattern (3), and said dielectric plate (5) extends in a region also covering said central portion of said feed line pattern (3) .
3. A device as defined in claim 1 or 2, c h a r a c t e ¬ r i z e d i n that said dielectric plate (5) is substantially rectangular, and said feed conductor line pattern (3) is meander-shaped, and said longitudinal feed line segments (9, 10, 11, 12) constitute the major part of the total length of the feed line segments in said feed conductor line pattern (3) .
4. A device as defined in claim 3, c h a r a c t e r i z e d i n that - said feed conductor line pattern (3) includes a meander- shaped portion on each side of central portion including said source connection terminal (6), and each of the meander-shaped portions includes a longitudinal feed line segment (9, 10) leading to one of said feed connection terminals (T T2) , and at least one meander loop (11, 12), which is branched off from said longitudinal feed line segment and includes at least two further longitudinal feed line segments leading to another one of said feed connection terminals (T3/ T4) .
5. A device as defined in any of claims' 1 through 4, c h a r a c t e r i z e d i n that said dielectric plate (33) is displaceable into any desired position between and including said end position by means of a mechanical actuator (35, 36, 37) coupled to a manually operable control means (38, 39) for adjusting the beam direction.
6. A device as defined in claim 5, c h a r a c t e r i z e d i n that said mechanical actuator comprises a longitudinally guided rack (35) meshing with a gear mechanism (36, 37) coupled to a rotatable axis (38) with a control knob (39) .
7. A device as defined in any one of claims 1 through 6, c h a r a c t e r i z e d i n that the device comprises at least one further feed line structure (lb) of the same kind and having a displaceable dielectric plate, which is displaceable in synchronism with the dielectric plate of the first mentioned feed line structure (la) .
8. A device as defined in claim 7, c h a r a c t e r i z e d i n that two similar feed line structures (la, lb) are connected to said common signal source (6) via a third feed line structure (20) of a similar kind.
9. A device as defined in any one of claims 1-8, c h a r a c t e r i z e d i n that opposite end portions (13, 14) of said dielectric plate (5) are provided with step¬ like recesses dimensioned so as to minimize signal reflexion in the corresponding portions of the feed line structure.
10. A feed line structure (1) for adjusting the phase difference between at least two signal components derived from a radio frequency signal generated by a source, comprising a source connection terminal (6) and at least two feed connection terminals ( (Tx, T2, T3, T4) , and a feed conductor line pattern (3) disposed in a fixed planar arrangement (2) at a distance from and in parallel to a fixed ground plate (4), and a movable dielectric body (5) located therebetween, said movable dielectric body being displaceable in parallel to said feed conductor line pattern and said ground plate so as to change the exciting phase of a signal component reaching one of said feed connection terminals, c h a r a c t e r i z e d i n that
said feed line pattern (3) is elongated in a main direction (A) , said feed line pattern (3) includes longitudinal feed line segments extending in parallel to said main direction (A) towards each one of said feed connection terminals (Tlr T2,
said dielectric body is formed substantially as a di¬ electric plate (5) , which is displaceable in said main direction (A) between two end positions (13', 14'), and said dielectric plate (5) is dimensioned and located so as to extend, in any position between and including said end positions, in a region covering supplementary portions of said longitudinal feed line segments (9, 10, 11, 12), said supplementary portions effecting a controlled propagation velocity reduction of the corresponding signal components before they reach the respective feed connection terminals ( Υl t T2, T3, T4) .
PCT/SE1996/000678 1995-05-24 1996-05-24 Device for adjusting the beam direction of an antenna, and feed line structure therefor WO1996037922A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
US08/750,714 US5949303A (en) 1995-05-24 1996-05-24 Movable dielectric body for controlling propagation velocity in a feed line
AU58493/96A AU5849396A (en) 1995-05-24 1996-05-24 Device for adjusting the beam direction of an antenna, and f eed line structure therefor
EP96920089A EP0832508B1 (en) 1995-05-24 1996-05-24 Device for adjusting the beam direction of an antenna, and feed line structure therefor
DE69617681T DE69617681T2 (en) 1995-05-24 1996-05-24 DEVICE FOR ADJUSTING THE RADIATION DIRECTION OF AN ANTENNA AND PIPELINE STRUCTURE THEREFOR
BR9609177A BR9609177A (en) 1995-05-24 1996-05-24 Device for adjusting the beam direction of a beam irradiated from a stationary set of antenna elements and power line structure to adjust the phase difference between at least two signal components derived from a r radio frequency generated by a source
KR1019970708122A KR100282999B1 (en) 1995-05-24 1996-05-24 Apparatus for adjusting the beam direction of the antenna and its supply line structure

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9501955-0 1995-05-24
SE9501955A SE504563C2 (en) 1995-05-24 1995-05-24 Device for setting the direction of an antenna loop

Publications (1)

Publication Number Publication Date
WO1996037922A1 true WO1996037922A1 (en) 1996-11-28

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PCT/SE1996/000678 WO1996037922A1 (en) 1995-05-24 1996-05-24 Device for adjusting the beam direction of an antenna, and feed line structure therefor

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US (1) US5949303A (en)
EP (1) EP0832508B1 (en)
KR (1) KR100282999B1 (en)
CN (1) CN1097320C (en)
AU (1) AU5849396A (en)
BR (1) BR9609177A (en)
DE (1) DE69617681T2 (en)
SE (1) SE504563C2 (en)
TW (1) TW340980B (en)
WO (1) WO1996037922A1 (en)

Cited By (13)

* Cited by examiner, † Cited by third party
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DE19938862C1 (en) * 1999-08-17 2001-03-15 Kathrein Werke Kg High frequency phase shifter assembly
US6339404B1 (en) 1999-08-13 2002-01-15 Rangestar Wirless, Inc. Diversity antenna system for lan communication system
WO2002035651A1 (en) * 2000-10-27 2002-05-02 Allgon Ab> Beam adjusting device
US6504450B2 (en) * 2000-08-12 2003-01-07 Kmw Inc. Signal process apparatus for phase-shifting N number of signals inputted thereto
WO2003019723A1 (en) * 2001-08-24 2003-03-06 Andrew Corporation Adjustable antenna feed network with integrated phase shifter
EP1468468A2 (en) * 2002-01-24 2004-10-20 Huber + Suhner Ag Phase-shifting system and antenna field comprising such a phase-shifting system
WO2006130083A1 (en) * 2005-05-31 2006-12-07 Powerwave Technologies Sweden Ab Beam adjusting device
WO2007139467A1 (en) * 2006-05-31 2007-12-06 Powerwave Technologies Sweden Ab A control system for controlling the electrical tilt of an antenna
US7505010B2 (en) 2004-11-26 2009-03-17 Powerwave Technologies Sweden Ab Antenna control system
WO2009070623A1 (en) 2007-11-26 2009-06-04 Powerwave Technologies, Inc. Single drive variable azimuth and beam tilt antenna for wireless network
WO2010124787A1 (en) 2009-04-30 2010-11-04 Kathrein-Werke Kg Method for operating a phase-controlled group antenna and a phase shifter assembly and an associated phase-controlled group antenna
US8130161B2 (en) 2004-11-26 2012-03-06 Powerwave Technologies Sweden Ab Antenna control system
EP2541676A2 (en) 2011-06-30 2013-01-02 Powerwave Technologies, Inc. Forty-five degree dual broad band base station antenna

Families Citing this family (57)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6075424A (en) * 1998-03-18 2000-06-13 Lucent Technologies, Inc. Article comprising a phase shifter having a movable dielectric element
AU755676B2 (en) * 1998-03-18 2002-12-19 Alcatel Phase-shifter arrangement
EP1290758A4 (en) 2000-04-27 2004-11-03 Bae Systemsinformation And Ele Single feed, multi-element antenna
US6774745B2 (en) * 2000-04-27 2004-08-10 Bae Systems Information And Electronic Systems Integration Inc Activation layer controlled variable impedance transmission line
US6865402B1 (en) 2000-05-02 2005-03-08 Bae Systems Information And Electronic Systems Integration Inc Method and apparatus for using RF-activated MEMS switching element
US7228156B2 (en) * 2000-05-02 2007-06-05 Bae Systems Information And Electronic Systems Integration Inc. RF-actuated MEMS switching element
AU2001275024A1 (en) 2000-05-31 2001-12-11 Bae Systems Information And Electronic Systems Integration, Inc. Scanning, circularly polarized varied impedance transmission line antenna
KR100452166B1 (en) * 2000-12-29 2004-10-12 주식회사 에이스테크놀로지 Beam tilt antenna by using the variable phase shifter
US6404391B1 (en) 2001-01-25 2002-06-11 Bae Systems Information And Electronic System Integration Inc Meander line loaded tunable patch antenna
WO2003019720A1 (en) * 2001-08-23 2003-03-06 Ems Technologies, Inc. Microstrip phase shifter
GB0125345D0 (en) * 2001-10-22 2001-12-12 Qinetiq Ltd Antenna System
US7274331B2 (en) * 2001-12-03 2007-09-25 Huber + Suhner Ag Phase-shifting system using a displaceable dielectric and phase array antenna comprising such a phase-shifting system
US6809694B2 (en) * 2002-09-26 2004-10-26 Andrew Corporation Adjustable beamwidth and azimuth scanning antenna with dipole elements
KR100480159B1 (en) * 2002-10-22 2005-04-07 주식회사 엘지텔레콤 Antenna system of variable beam width and method of varying beam width
EP1568097A4 (en) * 2002-11-08 2006-08-23 Ems Technologies Inc Variable power divider
US7221239B2 (en) * 2002-11-08 2007-05-22 Andrew Corporation Variable power divider
US7358922B2 (en) * 2002-12-13 2008-04-15 Commscope, Inc. Of North Carolina Directed dipole antenna
DE10351506A1 (en) * 2003-11-05 2005-06-02 Robert Bosch Gmbh Device and method for phase shifting
SE526987C2 (en) 2004-04-15 2005-11-29 Cellmax Technologies Ab Antenna supply network
US7193565B2 (en) * 2004-06-05 2007-03-20 Skycross, Inc. Meanderline coupled quadband antenna for wireless handsets
US7557675B2 (en) 2005-03-22 2009-07-07 Radiacion Y Microondas, S.A. Broad band mechanical phase shifter
US7864130B2 (en) * 2006-03-03 2011-01-04 Powerwave Technologies, Inc. Broadband single vertical polarized base station antenna
EP2025038B1 (en) * 2006-05-31 2012-07-11 Telecom Italia S.p.A. Continuously tunable delay line
EP2169762B1 (en) * 2006-10-16 2016-10-05 Telefonaktiebolaget LM Ericsson (publ) A tilt-dependent beam-shape system
US8072296B2 (en) * 2006-11-30 2011-12-06 Pirelli & C. S.P.A. Delay element with a perturber displaceable between first and second microstrip circuits
FR2912557B1 (en) 2007-02-08 2009-04-03 Alcatel Lucent Sas DEPHASING SYSTEM FOR RADIANT ELEMENTS OF AN ANTENNA
US7710344B2 (en) * 2007-03-05 2010-05-04 Powerwave Technologies, Inc. Single pole vertically polarized variable azimuth beamwidth antenna for wireless network
EP2135325B1 (en) * 2007-03-08 2012-06-27 Powerwave Technologies, Inc. Variable azimuth beamwidth antenna for wireless network
WO2008124027A1 (en) * 2007-04-06 2008-10-16 Powerwave Technologies, Inc. Dual stagger off settable azimuth beam width controlled antenna for wireless network
EP2158639B1 (en) * 2007-05-18 2016-06-29 Intel Corporation System and method for remote antenna positioning data acquisition
WO2008156633A2 (en) 2007-06-13 2008-12-24 Powerwave Technologies, Inc. Triple stagger offsetable azimuth beam width controlled antenna for wireless network
US20090021437A1 (en) * 2007-07-20 2009-01-22 Senglee Foo Center panel movable three-column array antenna for wireless network
SE531633C2 (en) * 2007-09-24 2009-06-16 Cellmax Technologies Ab Antenna arrangement
SE531826C2 (en) * 2007-09-24 2009-08-18 Cellmax Technologies Ab Antenna arrangement
US8237619B2 (en) * 2007-10-16 2012-08-07 Powerwave Technologies, Inc. Dual beam sector antenna array with low loss beam forming network
WO2009070626A2 (en) * 2007-11-28 2009-06-04 Powerwave Technologies, Inc. Linear antenna array with azimuth beam augmentation by axial rotation
US8508427B2 (en) * 2008-01-28 2013-08-13 P-Wave Holdings, Llc Tri-column adjustable azimuth beam width antenna for wireless network
US8334810B2 (en) * 2008-06-25 2012-12-18 Powerwave Technologies, Inc. Resonant cap loaded high gain patch antenna
US8719385B2 (en) * 2008-10-28 2014-05-06 Honeywell International Inc. Site controller discovery and import system
US20100106543A1 (en) * 2008-10-28 2010-04-29 Honeywell International Inc. Building management configuration system
US20110093493A1 (en) * 2008-10-28 2011-04-21 Honeywell International Inc. Building management system site categories
CN101651242B (en) * 2009-01-09 2013-10-30 电子科技大学 Miniaturized phase shifter for TD-SCDMA electrically controlled intelligent antenna
FR2977381B1 (en) * 2011-06-30 2014-06-06 Alcatel Lucent DEHASTER AND POWER DISTRIBUTOR
KR101246934B1 (en) 2011-09-16 2013-03-25 주식회사 에이스테크놀로지 Phase shifter having strip line structure
US9529349B2 (en) 2012-10-22 2016-12-27 Honeywell International Inc. Supervisor user management system
CN103050764A (en) 2012-12-17 2013-04-17 广东博纬通信科技有限公司 Isophase differential beam forming device
CN103094689B (en) * 2013-02-04 2016-03-16 京信通信系统（中国）有限公司 Medium phase shift block and phase-shifting unit, feeding network and antenna
US9971977B2 (en) 2013-10-21 2018-05-15 Honeywell International Inc. Opus enterprise report system
US9186479B1 (en) 2014-06-05 2015-11-17 Morphy Inc. Methods and systems for gathering human biological signals and controlling a bed device
US9933762B2 (en) 2014-07-09 2018-04-03 Honeywell International Inc. Multisite version and upgrade management system
US10209689B2 (en) 2015-09-23 2019-02-19 Honeywell International Inc. Supervisor history service import manager
US10362104B2 (en) 2015-09-23 2019-07-23 Honeywell International Inc. Data manager
US10154932B2 (en) 2015-11-16 2018-12-18 Eight Sleep Inc. Adjustable bedframe and operating methods for health monitoring
US10105092B2 (en) 2015-11-16 2018-10-23 Eight Sleep Inc. Detecting sleeping disorders
GB2584242B (en) 2018-01-09 2022-09-14 Eight Sleep Inc Systems and methods for detecting a biological signal of a user of an article of furniture
GB2584241B (en) 2018-01-19 2023-03-08 Eight Sleep Inc Sleep pod
US20240250422A1 (en) * 2021-06-21 2024-07-25 University Of Massachusetts Antenna system and phase control of emitted and reflected signals

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2947987A1 (en) * 1979-11-28 1981-09-03 Siemens AG, 1000 Berlin und 8000 München Cassegrain near-field aerial with reversible radiation propagation - uses dielectric disc and rings to provide wave phase shift at aerial aperture
EP0618639A2 (en) * 1993-03-30 1994-10-05 Mitsubishi Denki Kabushiki Kaisha Antenna apparatus and antenna system

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH320969A (en) * 1954-07-31 1957-04-15 Patelhold Patentverwertung Microwave line with variable electrical length
US3440573A (en) * 1964-08-19 1969-04-22 Jesse L Butler Electrical transmission line components
US3656179A (en) * 1970-08-21 1972-04-11 Bell Telephone Labor Inc Microwave stripline phase adjuster
US4356462A (en) * 1980-11-19 1982-10-26 Rca Corporation Circuit for frequency scan antenna element
DE3113452A1 (en) * 1981-04-03 1982-11-11 Standard Elektrik Lorenz Ag, 7000 Stuttgart Radio-frequency phase shifter
JPS59117801A (en) * 1982-12-24 1984-07-07 Toshiba Corp Microstrip circuit
JPS62196903A (en) * 1986-02-25 1987-08-31 Matsushita Electric Works Ltd Plane antenna
JPS63296402A (en) * 1987-05-27 1988-12-02 Mitsubishi Electric Corp Planar antenna
IT1234957B (en) * 1989-07-21 1992-06-02 Selenia Ind Elettroniche RF DIVISION NETWORK FOR ARRAY TYPE ANTENNAS

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2947987A1 (en) * 1979-11-28 1981-09-03 Siemens AG, 1000 Berlin und 8000 München Cassegrain near-field aerial with reversible radiation propagation - uses dielectric disc and rings to provide wave phase shift at aerial aperture
EP0618639A2 (en) * 1993-03-30 1994-10-05 Mitsubishi Denki Kabushiki Kaisha Antenna apparatus and antenna system

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN, Vol. 12, No. 49; & JP,A,62 196 903 (MATSUSHITA ELECTRIC WORKS LTD), 31 August 1987. *
PATENT ABSTRACTS OF JAPAN, Vol. 13, No. 128; & JP,A,63 296 402 (MITSUBISHI ELECTRIC CORP), 2 December 1988. *

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6339404B1 (en) 1999-08-13 2002-01-15 Rangestar Wirless, Inc. Diversity antenna system for lan communication system
DE19938862C1 (en) * 1999-08-17 2001-03-15 Kathrein Werke Kg High frequency phase shifter assembly
US6504450B2 (en) * 2000-08-12 2003-01-07 Kmw Inc. Signal process apparatus for phase-shifting N number of signals inputted thereto
WO2002035651A1 (en) * 2000-10-27 2002-05-02 Allgon Ab> Beam adjusting device
US6906666B2 (en) 2000-10-27 2005-06-14 Allgon Ab Beam adjusting device
AU2002330797B2 (en) * 2001-08-24 2006-12-21 Andrew Llc Adjustable antenna feed network with integrated phase shifter
WO2003019723A1 (en) * 2001-08-24 2003-03-06 Andrew Corporation Adjustable antenna feed network with integrated phase shifter
US7026889B2 (en) 2001-08-24 2006-04-11 Andrew Corporation Adjustable antenna feed network with integrated phase shifter
KR100889443B1 (en) * 2001-08-24 2009-03-23 앤드류 코포레이션 Device for feedings signals, dielectirc phase shifter and method of manufacturing the dielectirc phase shifter
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US7505010B2 (en) 2004-11-26 2009-03-17 Powerwave Technologies Sweden Ab Antenna control system
US8130161B2 (en) 2004-11-26 2012-03-06 Powerwave Technologies Sweden Ab Antenna control system
US7898489B2 (en) 2005-05-31 2011-03-01 Powerwave Technologies Sweden Ab Beam adjusting device
WO2006130083A1 (en) * 2005-05-31 2006-12-07 Powerwave Technologies Sweden Ab Beam adjusting device
US7999737B2 (en) 2005-05-31 2011-08-16 Powerwave Technologies, Inc. Beam adjusting device
WO2006130084A1 (en) * 2005-05-31 2006-12-07 Powerwave Technologies Sweden Ab Beam adjusting device
WO2007139467A1 (en) * 2006-05-31 2007-12-06 Powerwave Technologies Sweden Ab A control system for controlling the electrical tilt of an antenna
US8354959B2 (en) 2006-05-31 2013-01-15 Powerwave Technologies Sweden Ab Control system for controlling the electrical tilt of an antenna
WO2009070623A1 (en) 2007-11-26 2009-06-04 Powerwave Technologies, Inc. Single drive variable azimuth and beam tilt antenna for wireless network
US8085211B2 (en) 2007-11-26 2011-12-27 Powerwave Technologies, Inc. Single drive variable azimuth and beam tilt antenna for wireless network
WO2010124787A1 (en) 2009-04-30 2010-11-04 Kathrein-Werke Kg Method for operating a phase-controlled group antenna and a phase shifter assembly and an associated phase-controlled group antenna
DE102009019557A1 (en) 2009-04-30 2010-11-11 Kathrein-Werke Kg A method of operating a phased array antenna and a phase shifter assembly and associated phased array antenna
US9160062B2 (en) 2009-04-30 2015-10-13 Kathrein-Werke Kg Method for operating a phase-controlled group antenna and phase shifter assembly and an associated phase-controlled group antenna
EP2541676A2 (en) 2011-06-30 2013-01-02 Powerwave Technologies, Inc. Forty-five degree dual broad band base station antenna

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CN1184562A (en) 1998-06-10
US5949303A (en) 1999-09-07
DE69617681T2 (en) 2002-08-08
SE9501955D0 (en) 1995-05-24
TW340980B (en) 1998-09-21
KR19990014779A (en) 1999-02-25
SE504563C2 (en) 1997-03-03
AU5849396A (en) 1996-12-11
EP0832508B1 (en) 2001-12-05
BR9609177A (en) 1999-08-24
KR100282999B1 (en) 2001-03-02
CN1097320C (en) 2002-12-25
SE9501955L (en) 1996-11-25
EP0832508A1 (en) 1998-04-01
DE69617681D1 (en) 2002-01-17

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