CN109524785B - Waveguide mechanical phase-shifting network and phased-array antenna - Google Patents
Waveguide mechanical phase-shifting network and phased-array antenna Download PDFInfo
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- CN109524785B CN109524785B CN201811438561.4A CN201811438561A CN109524785B CN 109524785 B CN109524785 B CN 109524785B CN 201811438561 A CN201811438561 A CN 201811438561A CN 109524785 B CN109524785 B CN 109524785B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
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- 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
- H01Q3/34—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 electrical means
- H01Q3/36—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 electrical means with variable phase-shifters
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Abstract
The invention provides a waveguide mechanical phase-shifting network and a phased-array antenna, which relate to the technical field of antennas and comprise a plurality of phase-shifting sliding pistons, an upper-layer supporting body and a lower-layer supporting body; the phase-shifting sliding piston comprises a piston and a piston clapboard which are connected with each other, wherein a waveguide hole is arranged between the piston and the piston clapboard; the upper layer supporting body and the lower layer supporting body are connected with each other to form a closed chamber; a sliding groove is arranged between the upper layer support body and the lower layer support body, and the piston partition plate is arranged in the sliding groove and divides the closed cavity into a plurality of groups of waveguide cavities; each group of waveguide cavity and the corresponding waveguide hole form a passage; the upper layer support body is provided with a first waveguide port; a second waveguide port is arranged on the lower support body; electromagnetic wave energy is input from the first waveguide port and output from the second waveguide port after being subjected to phase shifting. The waveguide mechanical phase shifting network and the phased array antenna provided by the embodiment of the invention can realize the phase shifting of a plurality of waveguide channels through mechanical transmission, and improve the radiation efficiency of the antenna.
Description
Technical Field
The invention relates to the technical field of antennas, in particular to a waveguide mechanical phase-shifting network and a phased array antenna.
Background
The phased array antenna has the advantages of rapid beam scanning, no need of moving the antenna aperture during beam scanning, easy realization of amplitude-phase distribution, capability of forming a low-side lobe antenna, normal work when part of antenna units fail, and high reliability. The method is widely applied in the fields of modern microwave communication, radar and the like.
The phased array antenna is mainly divided into an active phased array and a passive phased array, and the two traditional phased arrays adopt phase shifters to shift the phase of each feed, so that 1-dimensional or 2-dimensional beam scanning is realized. At present, the traditional phased array antenna has the following defects:
firstly, the T/R component used by the active phased array is high in cost, and a large T/R component is often needed for a large-scale array antenna;
secondly, the passive phased array has feeder loss and insertion loss of the phase shifter, which results in low antenna aperture efficiency.
Disclosure of Invention
In view of this, the present invention provides a waveguide mechanical phase shifting network and a phased array antenna, which implement phase shifting of multiple waveguide paths through mechanical transmission, so as to transmit and deflect antenna beams, alleviate the insertion loss problem of a phase shifter, effectively reduce the phase shifting cost, and improve the antenna radiation efficiency.
In a first aspect, an embodiment of the present invention provides a waveguide mechanical phase shifting network, including: a plurality of phase-shifting sliding pistons, an upper layer supporting body and a lower layer supporting body; the phase-shifting sliding piston comprises a piston and a piston clapboard which are connected with each other, wherein a waveguide hole is arranged between the piston and the piston clapboard; the upper layer supporting body and the lower layer supporting body are connected with each other to form a closed chamber; a sliding groove is arranged between the upper layer support body and the lower layer support body, and the piston partition plate is arranged in the sliding groove and divides the closed cavity into a plurality of groups of waveguide cavities; each group of waveguide cavity and the corresponding waveguide hole form a passage; the upper layer support body is provided with a first waveguide port; a second waveguide port is arranged on the lower support body; electromagnetic wave energy is input into the waveguide mechanical phase-shifting network from the first waveguide port, when the phase-shifting sliding piston moves, the length of the passage is changed, and the electromagnetic wave energy is phase-shifted and output from the second waveguide port.
With reference to the first aspect, embodiments of the present invention provide a first possible implementation manner of the first aspect, wherein the phase-shifting sliding piston further includes a piston rod, and the piston rod is connected to the piston.
With reference to the first possible implementation manner of the first aspect, an embodiment of the present invention provides a second possible implementation manner of the first aspect, where the waveguide mechanical phase shifting network further includes a phase shifting linkage; the phase-shifting linkage device is movably connected with the piston pull rods of the plurality of phase-shifting sliding pistons.
With reference to the second possible implementation manner of the first aspect, an embodiment of the present invention provides a third possible implementation manner of the first aspect, wherein a roller and a roller are disposed on the piston rod, a pulley groove is disposed on the phase shifting linkage, and the roller is slidably disposed in the pulley groove.
With reference to the third possible implementation manner of the first aspect, an embodiment of the present invention provides a fourth possible implementation manner of the first aspect, where the waveguide mechanical phase shifting network further includes a transmission structure, the transmission structure is detachably connected to the phase shifting linkage, and the transmission structure is configured to drive the phase shifting linkage to move.
With reference to the fourth possible implementation manner of the first aspect, an embodiment of the present invention provides a fifth possible implementation manner of the first aspect, wherein the transmission structure includes a central transmission shaft, a transmission shaft connector, and a transmission shaft support; the transmission shaft connector is detachably connected with the phase shifting linkage device, and the central transmission shaft is movably sleeved with the transmission shaft connector and the transmission shaft bracket respectively.
With reference to the fifth possible implementation manner of the first aspect, the embodiment of the present invention provides a sixth possible implementation manner of the first aspect, wherein the two transmission shaft supports include two transmission shaft supports, and the two transmission shaft supports are respectively fixedly disposed on the upper layer support and the lower layer support.
With reference to the first aspect and one of the first to sixth possible implementation manners of the first aspect, an embodiment of the present invention provides a seventh possible implementation manner of the first aspect, wherein the piston includes two H-plane waveguide bends.
In a second aspect, an embodiment of the present invention further provides a phased array antenna, including an array antenna, a waveguide power divider, and the waveguide mechanical phase shifting network provided in one of the second to seventh implementations of the first aspect; the array antenna is connected with a waveguide mechanical phase-shifting network through a first waveguide port; the waveguide power divider is connected with the waveguide mechanical phase-shifting network through a second waveguide port; electromagnetic wave energy is input into the waveguide mechanical phase-shifting network through the array antenna through the first waveguide port, is output to the waveguide power divider through the second waveguide port after phase shifting is completed in the waveguide mechanical phase-shifting network, and is output after energy synthesis.
With reference to the second aspect, an embodiment of the present invention further provides a first possible implementation manner of the second aspect, where an included angle between the phase shifting linkage and the piston rod is a deflection phase shifting angle; when the deflection phase shift angle is not zero, the relationship between the deflection phase shift angle and the scanning angle of the array antenna which deviates from the normal scanning is as follows:
in the formula, theta is a scanning angle, alpha is a deflection phase shift angle, a is a waveguide broadside dimension, and lambda is an electromagnetic wave wavelength.
The embodiment of the invention has the following beneficial effects:
the embodiment of the invention provides a waveguide mechanical phase-shifting network and a phased array antenna, wherein the phase-shifting network comprises a plurality of phase-shifting sliding pistons, an upper layer supporting body and a lower layer supporting body; the phase-shifting sliding piston comprises a piston and a piston clapboard which are connected with each other, wherein a waveguide hole is arranged between the piston and the piston clapboard; the upper layer supporting body and the lower layer supporting body are connected with each other to form a closed chamber; a sliding groove is arranged between the upper layer support body and the lower layer support body, and the piston partition plate is arranged in the sliding groove and divides the closed cavity into a plurality of groups of waveguide cavities; each group of waveguide cavity and the corresponding waveguide hole form a passage; the upper layer support body is provided with a first waveguide port; a second waveguide port is arranged on the lower support body; electromagnetic wave energy is input into the waveguide mechanical phase-shifting network from the first waveguide port, when the phase-shifting sliding piston moves, the length of the passage is changed, and the electromagnetic wave energy is phase-shifted and output from the second waveguide port. The waveguide mechanical phase shifting network provided by the embodiment of the invention realizes the phase shifting of a plurality of waveguide channels through mechanical transmission, so that the antenna beam is transmitted and deflected, the problem of insertion loss of the phase shifter is solved, the phase shifting cost is effectively reduced, and the antenna radiation efficiency is improved.
Additional features and advantages of the disclosure will be set forth in the description which follows, or in part may be learned by the practice of the above-described techniques of the disclosure, or may be learned by practice of the disclosure.
In order to make the aforementioned objects, features and advantages of the present disclosure more comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of an application scenario of a waveguide mechanical phase shifting network according to an embodiment of the present invention;
FIG. 2 is a schematic perspective view of a waveguide mechanical phase shifting network according to an embodiment of the present invention;
FIG. 3 is a front view of a waveguide mechanical phase shifting network according to an embodiment of the present invention;
FIG. 4 is a partial perspective view of a waveguide mechanical phase shifting network provided by an embodiment of the present invention;
FIG. 5 is a schematic perspective view of a phase-shifting sliding piston according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a phase shift linkage according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a transmission structure according to an embodiment of the present invention;
fig. 8 is an exploded view of a waveguide power divider according to an embodiment of the present invention;
fig. 9 is a top view of an array antenna according to an embodiment of the present invention;
fig. 10 is a partially enlarged schematic view of an array antenna according to an embodiment of the present invention.
Icon:
1-an array antenna; 2-waveguide mechanical phase shifting network; 3-a waveguide power divider; 4-upper support; 5-a lower support; 6-a phase-shifting sliding piston; 7-a phase-shifting linkage; 8-a sliding groove; 31-power divider cover; 32-power divider seat; 41-first waveguide port; 42-H surface waveguide elbow; 61-piston diaphragm; 62-a piston; 63-waveguide aperture; 64-piston rod; 65-a roller; 66-a roller; 71-pulley groove; 72-a central drive shaft; 73-a drive shaft connector; 74-drive shaft support.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
At present, the existing phased-array antenna has the problems that the cost of a T/R component of an active phased-array is high, and the aperture efficiency of a passive phased-array antenna is low due to feeder loss and insertion loss of a phase shifter.
For the convenience of understanding the present embodiment, a waveguide mechanical phase shifting network disclosed in the present embodiment will be described in detail first.
Referring to fig. 1, a schematic view of an application scenario of a waveguide mechanical phase shifting network provided in an embodiment of the present invention is shown in fig. 1, where the waveguide mechanical phase shifting network is used in a phased array antenna, where the phased array antenna includes three parts, that is, an array antenna 1, a waveguide mechanical phase shifting network 2, and a waveguide power divider 3, which are connected in sequence. In the phased array antenna, a waveguide mechanical phase shifting network 2 is used for transmitting electromagnetic wave signals received from an array antenna 1 to a waveguide power divider 3 after phase shifting for outputting, so that deflection of antenna beam emission is realized.
The waveguide mechanical phase shifting network 2 is shown in fig. 2-4, which are a schematic perspective view, a front view and a partial perspective view. As can be seen, the waveguide mechanical phase shifting network 2 includes: an upper support 4, a lower support 5 and a plurality of phase-shifting sliding pistons 6.
In this waveguide mechanical phase shifting network 2, the phase shifting sliding piston 6 includes a piston 62 and a piston diaphragm 61 connected to each other, and a waveguide hole 63 is provided between the piston 62 and the piston diaphragm 61. In at least one possible embodiment, the waveguide holes 63 may be arranged in a rectangular shape.
Wherein, the upper support 4 and the lower support 5 are connected with each other and constitute a closed chamber, and a sliding groove 8 is provided between the upper support 4 and the lower support 5, and a piston partition 61 of the phase-shift sliding piston 6 is provided in the sliding groove 8 and divides the closed chamber into a plurality of groups of waveguide cavities. In one embodiment, a plurality of groups of partition plates are arranged inside the upper support body 4 and the lower support body 5 correspondingly, and the internal cavity of the support body is divided into a plurality of spaces; the piston partition plate 61 is tightly attached to the sliding groove 8, and the piston partition plate 61 can freely move in the sliding groove 8; the piston partition plates 61 divide the inside of the combination of the upper support 4 and the lower support 5 into vertically independent closed structures, each piston partition plate 61 and a corresponding partition plate group in the supports form an independent chamber, the chamber of the upper support 4 and the chamber of the lower support at a corresponding position form a group of waveguide cavities, and each group of waveguide cavities and the corresponding waveguide holes 63 form a passage. Referring to fig. 4, the waveguide has a broadside dimension of a and a broadside dimension of b.
In addition, the upper support 4 is also provided with a first waveguide port 41; the lower support body 5 is provided with a second waveguide port. Here, the first waveguide port 41 may be provided at the upper end of the upper support 4, for example, at the side of the upper end face with the opening facing upward, and the H-plane waveguide bend 42 may be provided at the position where the first waveguide port 41 and the upper support 4 are joined; the second waveguide port may be provided at a side of the lower support 5. The shape for the first waveguide port 41 and the second waveguide port may be rectangular, circular, or any other shape. In one possible embodiment, the first waveguide ports 41 and the second waveguide ports are arranged in a plurality of groups, and are arranged side by side.
During actual operation, electromagnetic wave energy is input into the waveguide mechanical phase shifting network 2 from the first waveguide port 41 of the waveguide mechanical phase shifting network 2, the phase shifting sliding piston 6 is adjusted to move to a proper degree according to actual requirements, the length of a passage formed by each group of waveguide cavities is correspondingly changed along with the movement of the phase shifting sliding piston 6, so that the electromagnetic wave energy is subjected to phase shifting, and the electromagnetic wave energy subjected to phase shifting is finally output from the second waveguide port.
Therefore, the waveguide mechanical phase-shifting network enables the multiple waveguide channels to shift the phase through mechanical transmission, and compared with a T/R component used by an active phased array, the cost is saved; compared with a passive phased array, the phase shifter has the advantages that the defect of insertion loss of the phase shifter is overcome, and the radiation efficiency of the antenna is effectively improved.
In order to facilitate the control of the movement of the phase-shift sliding piston 6, in one embodiment, a piston rod 64 may be provided, and the piston rod 64 is connected to the piston 62, where the piston rod 64 and the piston diaphragm 61 are respectively provided at both ends of the piston 62. When it is desired to move the plunger 62 to cause a change in the length of the waveguide path, the plunger rod 64 may be pulled outwardly or pushed inwardly.
The embodiment of the invention provides a waveguide mechanical phase shifting network, which comprises a plurality of phase shifting sliding pistons, an upper layer support body and a lower layer support body; the phase-shifting sliding piston comprises a piston and a piston clapboard which are connected with each other, wherein a waveguide hole is arranged between the piston and the piston clapboard; the upper layer supporting body and the lower layer supporting body are connected with each other to form a closed chamber; a sliding groove is arranged between the upper layer support body and the lower layer support body, and the piston partition plate is arranged in the sliding groove and divides the closed cavity into a plurality of groups of waveguide cavities; each group of waveguide cavity and the corresponding waveguide hole form a passage; the upper layer support body is provided with a first waveguide port; a second waveguide port is arranged on the lower support body; electromagnetic wave energy is input into the waveguide mechanical phase-shifting network from the first waveguide port, when the phase-shifting sliding piston moves, the length of the passage is changed, and the electromagnetic wave energy is phase-shifted and output from the second waveguide port; the phase shift of a plurality of waveguide paths is realized through mechanical transmission, so that the antenna beam is transmitted and deflected, the problem of insertion loss of the phase shifter is solved, the phase shift cost is effectively reduced, and the radiation efficiency of the antenna is improved.
In actual operation, in order to move the phase-shifting sliding piston more conveniently and realize one-time phase shifting of a plurality of waveguide channels, a transmission structure is designed, and comprises a phase-shifting linkage device and a phase-shifting sliding piston matched with the phase-shifting linkage device.
As shown in fig. 5 and fig. 6, which are respectively schematic structural diagrams of the phase shifting sliding piston and the phase shifting linkage in the present embodiment, as can be seen from fig. 5, the phase shifting sliding piston includes a piston rod 64, a piston 62 and a piston partition 61 which are connected in sequence, the piston 62 includes two H-plane waveguide bends, and a roller 65 and a roller 66 are further disposed at one end of the piston rod 64. Wherein, a roller 66 passes through one end of the piston pull rod 64 up and down, two rollers 65 are fixed on two sides of the roller 66, and the rollers 65 can rotate around the roller 66. Accordingly, as shown in fig. 6, a pulley groove 71 is provided on the phase shift linkage 7, and the upper and lower rollers 65 of the phase shift movable piston are fixed in the pulley groove 71 of the phase shift linkage 7. When the phase-shifting linkage device 7 moves under the action of external force, the motion of each piston pull rod 64 is simultaneously pulled, so that each phase-shifting sliding piston moves simultaneously, and further, the one-time phase shifting of a plurality of waveguide channels is realized.
In order to enable the phase shifting linkage 7 to realize motor power transmission, in one or more possible embodiments, the waveguide mechanical phase shifting network further includes a transmission structure, the transmission structure is detachably connected with the phase shifting linkage 7, and the transmission structure is used for driving the phase shifting linkage 7 to move. Referring to fig. 7, the drive structure includes a central drive shaft 72, a drive shaft connector 73, and a drive shaft bracket 74; the transmission shaft connector 73 is detachably connected with the phase shifting linkage device 7, and the central transmission shaft 72 is movably sleeved with the transmission shaft connector 73 and the transmission shaft bracket 74 respectively. The two transmission shaft brackets 74 are fixedly disposed on the upper support and the lower support, respectively.
In practical operation, when the central transmission shaft 72 rotates, the roller 65 disposed at one end of the phase-shifting sliding piston slides freely in the pulley groove 71, and drives the phase-shifting sliding piston to slide in the waveguide cavity formed by the upper support and the lower support, the sliding distance is equal to the length of the difference, and a phase-shifting amount of equal difference value is generated at the same time.
Here, the central transmission shaft 72 of the phase-shifting linkage 7 is connected by the transmission shaft connector 73 into an upper and a lower body to ensure that the phase-shifting linkage 7 rotates along with the central transmission shaft 72. In at least one possible embodiment, the central transmission shaft 72 can be driven by gears, belts, etc. and can be driven by a computer-controlled motor.
The embodiment of the invention also provides a phased array antenna, which comprises an array antenna, a waveguide power divider and a waveguide mechanical phase shifting network comprising the phase shifting linkage device, wherein the waveguide mechanical phase shifting network is provided by one of the implementation modes of the embodiment.
In the phased array antenna of the embodiment, the array antenna is connected with a waveguide mechanical phase shifting network through a first waveguide port; the waveguide power divider is connected with the waveguide mechanical phase-shifting network through a second waveguide port; electromagnetic wave energy is input into the waveguide mechanical phase-shifting network through the array antenna through the first waveguide port, is output to the waveguide power divider through the second waveguide port after phase shifting is completed in the waveguide mechanical phase-shifting network, and is output after energy synthesis.
Referring to fig. 8, which is a schematic diagram of the waveguide power divider of the phased array antenna, as can be seen from fig. 8, the waveguide power divider 3 is composed of two parts, namely a power divider cover 31 and a power divider base 32. The power divider is composed of N output waveguides ET and an E surface elbow, the upper layer and the lower layer can be connected in a screw connection or welding mode, and a main waveguide port is arranged on the rear side of the power divider base 32.
Referring to fig. 9-10, which are a top view and a partially enlarged schematic view of an array antenna of the phased array antenna, the array antenna has N units, and two adjacent units are spaced apart by a distance D. Here, the array antenna may be in the form of a waveguide slot array, a microstrip array, a waveguide port array, or the like, and its input ports are all waveguide ports.
In practical operation, the waveguide mechanical phase-shifting network controls the array antenna to perform beam scanning in the direction between the N paths, and the signals in the N paths of waveguides are synthesized through the waveguide power divider. Specifically, electromagnetic wave energy firstly receives or radiates electromagnetic wave signals through an array antenna of an N-path unit; each path of the array antenna is connected to a first waveguide port at the top of the upper support body of the waveguide mechanical phase-shifting network through a waveguide port, and rotates for a certain angle through the phase-shifting linkage device and drives N paths of phase-shifting sliding pistons in the waveguide mechanical phase-shifting network, so that electromagnetic wave energy simultaneously generates phase-shifting quantity with equal difference values in the paths, and the phase-shifting work of a mechanical structure is completed. At this time, the array antenna may be caused to scan away from the normal, and the scanning angle is denoted as θ. And inputting energy into the waveguide power divider through a second waveguide port of the lower-layer support body by the phase-shifted signal, and inputting the energy into a main waveguide port after energy is synthesized by the waveguide power divider.
Here, in the waveguide mechanical phase shifting network of the present embodiment, an included angle between the phase shifting linkage and the piston rod is a deflection phase shifting angle, which is denoted as α;
when the deflection phase shift angle is zero, the antenna beam points to the normal direction;
when the deflection phase shift angle is not zero, the relationship between the deflection phase shift angle and the scanning angle of the array antenna which deviates from the normal scanning is as follows:
in the formula, theta is a scanning angle, alpha is a deflection phase shift angle, a is a waveguide broadside dimension, and lambda is an electromagnetic wave wavelength.
In practical operation, the control of the motor by the computer can be realized through programming design, and the motor drives the central transmission shaft to rotate so as to control the deviation of the deflection phase shift angle alpha, thereby being conveniently converted into a beam scanning angle.
The phased array antenna provided by the embodiment of the invention has the same technical characteristics as the waveguide mechanical phase shifting network provided by the embodiment, so that the same technical problems can be solved, and the same technical effects can be achieved.
Unless specifically stated otherwise, the relative steps, numerical expressions, and values of the components and steps set forth in these embodiments do not limit the scope of the present invention.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. A waveguide mechanical phase shifting network, comprising: a plurality of phase-shifting sliding pistons, an upper layer supporting body and a lower layer supporting body;
the phase-shifting sliding piston comprises a piston and a piston clapboard which are connected with each other, and a waveguide hole is arranged between the piston and the piston clapboard; the phase-shifting sliding piston also comprises a piston pull rod, and the piston pull rod is connected with the piston;
the upper layer support body and the lower layer support body are connected with each other to form a closed chamber; a sliding groove is formed between the upper support body and the lower support body, and the piston partition plate is arranged in the sliding groove and divides the closed cavity into a plurality of groups of waveguide cavities; each group of waveguide cavity and the corresponding waveguide hole form a passage;
the upper layer supporting body is provided with a first waveguide port; a second waveguide port is formed in the lower support body; electromagnetic wave energy is input into the waveguide mechanical phase shifting network from the first waveguide port, the length of the passage is changed when the phase shifting sliding piston moves, and the electromagnetic wave energy is subjected to phase shifting and is output from the second waveguide port;
the waveguide mechanical phase-shifting network also comprises a phase-shifting linkage device; the phase-shifting linkage device is movably connected with the piston pull rods of the plurality of phase-shifting sliding pistons.
2. The waveguide mechanical phase shifting network of claim 1, wherein the piston rod is provided with a roller and a rolling shaft, the phase shifting linkage is provided with a pulley groove, and the roller is slidably disposed in the pulley groove.
3. The waveguide mechanical phase shifting network of claim 2, further comprising a transmission structure, wherein the transmission structure is detachably connected to the phase shifting linkage, and the transmission structure is configured to drive the phase shifting linkage to move.
4. The waveguide mechanical phase shifting network of claim 3, wherein the drive structure comprises a central drive shaft, a drive shaft connector, and a drive shaft support; the transmission shaft connector is detachably connected with the phase-shifting linkage device, and the central transmission shaft is movably sleeved with the transmission shaft connector and the transmission shaft bracket respectively.
5. The waveguide mechanical phase shifting network of claim 4, wherein the transmission shaft support comprises two transmission shaft supports fixedly disposed on the upper support and the lower support, respectively.
6. The waveguide mechanical phase shifting network of any one of claims 1-5, wherein the piston comprises two H-plane waveguide bends.
7. A phased array antenna comprising an array antenna, a waveguide power divider, and a waveguide mechanical phase shifting network as claimed in any one of claims 1 to 6;
the array antenna is connected with the waveguide mechanical phase shifting network through the first waveguide port; the waveguide power divider is connected with the waveguide mechanical phase-shifting network through the second waveguide port;
electromagnetic wave energy is input into the waveguide mechanical phase-shifting network through the array antenna through the first waveguide port, is output to the waveguide power divider through the second waveguide port after phase shifting is completed in the waveguide mechanical phase-shifting network, and is synthesized and output.
8. The phased array antenna of claim 7,
the included angle between the phase shifting linkage device and the piston pull rod is a deflection phase shifting angle;
when the deflection phase shift angle is not zero, the relationship between the deflection phase shift angle and the scanning angle of the array antenna which deviates from the normal scanning is as follows:
in the formula, theta is a scanning angle, alpha is a deflection phase shift angle, a is a waveguide broadside dimension, and lambda is an electromagnetic wave wavelength.
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| CN114614226A (en) * | 2021-08-26 | 2022-06-10 | 西安空间无线电技术研究所 | Novel waveguide based on satellite feed source and fixing method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000079636A1 (en) * | 1999-06-19 | 2000-12-28 | Marconi Caswell Limited | Steerable phased array antenna |
| CN101826647A (en) * | 2009-12-14 | 2010-09-08 | 京信通信系统（中国）有限公司 | Phase shift driving device of electric tiled antenna |
| CN201887152U (en) * | 2010-12-09 | 2011-06-29 | 广东通宇通讯股份有限公司 | Multi-array electric control base station antenna regulating device |
Family Cites Families (4)
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|---|---|---|---|---|
| JPH0682969B2 (en) * | 1989-08-30 | 1994-10-19 | 株式会社横尾製作所 | Array antenna |
| JP2846574B2 (en) * | 1994-03-22 | 1999-01-13 | 株式会社自由電子レーザ研究所 | High frequency phase shifter |
| JP4057460B2 (en) * | 2003-04-22 | 2008-03-05 | 島田理化工業株式会社 | Reflective waveguide phase shifter |
| SE539387C2 (en) * | 2015-09-15 | 2017-09-12 | Cellmax Tech Ab | Antenna feeding network |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000079636A1 (en) * | 1999-06-19 | 2000-12-28 | Marconi Caswell Limited | Steerable phased array antenna |
| CN101826647A (en) * | 2009-12-14 | 2010-09-08 | 京信通信系统（中国）有限公司 | Phase shift driving device of electric tiled antenna |
| CN201887152U (en) * | 2010-12-09 | 2011-06-29 | 广东通宇通讯股份有限公司 | Multi-array electric control base station antenna regulating device |
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