CN111162387A - Annular antenna array - Google Patents
Annular antenna array Download PDFInfo
- Publication number
- CN111162387A CN111162387A CN202010065674.5A CN202010065674A CN111162387A CN 111162387 A CN111162387 A CN 111162387A CN 202010065674 A CN202010065674 A CN 202010065674A CN 111162387 A CN111162387 A CN 111162387A
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- China
- Prior art keywords
- circuit
- metal
- power
- top plate
- antenna array
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/02—Arrangements for de-icing; Arrangements for drying-out ; Arrangements for cooling; Arrangements for preventing corrosion
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/06—Arrays of individually energised antenna units similarly polarised and spaced apart
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- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The invention provides a loop antenna array, comprising: the device comprises a metal outer frame, a plurality of amplitude-phase control circuits, a control circuit, a variable-frequency transceiving circuit, a plurality of power combination circuits, a plurality of energy storage material pieces and a metal top plate; wherein, the metal outer frame is provided with a circular column-shaped accommodating cavity; the power combining circuit includes: the power combined circuit comprises a passive antenna, a power amplifier and a low-noise discharge circuit, a metal mounting piece for mounting the power combined circuit and a radio frequency connector arranged at the bottom side of the power combined circuit; the metal top plate is horizontally arranged at the top of the accommodating cavity, is fixedly connected with the metal outer frame, and is provided with a plurality of first windows and a plurality of second windows; the power combination circuit penetrates through the first window, and the metal mounting piece is fixedly connected with the metal top plate; the energy storage material element is inserted in the second window, and two ends of the energy storage material element are respectively contacted with the metal top plate and the amplitude-phase control circuit positioned on the uppermost layer. Compact structure and is beneficial to miniaturization.
Description
Technical Field
The present invention relates to a transmission apparatus of wireless signals, and more particularly to a radar and a mobile communication system.
Background
The existing antenna array is limited by difficult system layout under the application condition of needing a central hole, and has the difficulties of higher side lobe, difficult high-power heat dissipation, difficult integration and the like. The system has large volume, complex structure, difficult maintenance and difficult miniaturization.
Disclosure of Invention
The present invention is directed to provide a loop antenna array, which is compact and advantageous for miniaturization.
The technical scheme adopted by the invention for solving the technical problem comprises the following steps: there is provided a loop antenna array, comprising:
the metal outer frame is enclosed by the inner ring, the outer ring and the bottom plate to form an annular cylindrical accommodating cavity;
the amplitude-phase control circuits, the control circuits and the frequency conversion transceiving circuits are horizontally arranged in the accommodating cavity at intervals up and down;
a plurality of power assemblies vertically inserted into the receiving cavity and arranged on the top side of the uppermost phase control circuit, wherein the power assemblies comprise: the power combined circuit comprises a power combined circuit consisting of a passive antenna, a power amplifier and a low-noise discharge circuit, a metal mounting part for mounting the power combined circuit and a radio frequency connector arranged at the bottom side of the power combined circuit, wherein the power combined circuit comprises a circuit board and a device arranged on the front side of the circuit board;
a plurality of energy storage material pieces which are vertically inserted into the accommodating cavity; and
the metal top plate is annular, is horizontally arranged at the top of the accommodating cavity, is fixedly connected with the metal outer frame, and is provided with a plurality of first windows which are in one-to-one correspondence with the power combinations and a plurality of second windows which are in one-to-one correspondence with the energy storage material pieces;
the power combination circuit penetrates through the first window, and the metal mounting piece is fixedly connected with the metal top plate; the energy storage material element is inserted in the second window, and two ends of the energy storage material element are respectively contacted with the metal top plate and the amplitude-phase control circuit positioned on the uppermost layer.
In some embodiments, the metal mounting member includes a base and a back portion extending upwardly from the base, the back portion being fixedly connected to the metal top plate; the back of the power combining circuit is fixed on the back.
In some embodiments, the back portion is fixedly connected to the metal top plate by fasteners passing up and down through the metal top plate.
In some embodiments, the back side of the power pack is secured to the back side by welding and/or adhesive.
In some embodiments, the power combining circuit is electrically connected to the uppermost amplitude and phase control circuit via the rf connector.
In some embodiments, the power assembly further includes a metal frame disposed on the front surface of the power assembly circuit, and the metal frame is provided with a plurality of receiving cavities for correspondingly receiving the devices on the front surface of the power assembly circuit.
In some embodiments, the metal outer frame is in the shape of a circular ring, an elliptical ring or a rectangular circular ring.
Compared with the prior art, the annular antenna array has the advantages that the metal outer frame, the amplitude-phase control circuit, the variable-frequency transceiving circuit, the power combination, the smart matching between the energy storage material pieces and the metal top plate, the structure is compact, and the miniaturization is facilitated.
Drawings
FIG. 1 is a schematic cross-sectional view of a loop antenna array embodiment of the present invention.
Figure 2 is a top view structural schematic of a loop antenna array embodiment of the present invention.
Figure 3 is a side view schematic of a loop antenna array embodiment of the present invention.
Figure 4 is a side view schematic of a single power combination in a circular array embodiment of the present invention.
Figure 5 is a schematic top view of another embodiment of a loop antenna array of the present invention.
Figure 6 is a schematic top view of a loop antenna array of yet another embodiment of the present invention.
Wherein the reference numerals are as follows: 10. 10a, 10b circular antenna arrays 1, 1a, 1b metal outer frames 11, 11a, 11b inner rings 12, 12a, 12b, outer ring 13 bottom plate 19 housing cavity 2 amplitude control circuit 3 control circuit 4 frequency conversion transceiver circuit 5 single power combining circuit 51 power combining circuit 52 metal mounting piece 522 back 53 rf connector 54 metal frame 6 energy storage material 7 metal top plate 71 first window 72 second window 8 connector.
Detailed Description
For the purpose of illustrating the construction and features of the invention in detail, reference should be made to the following description of the preferred embodiments taken in conjunction with the accompanying drawings.
Referring to fig. 1-5, fig. 1 is a schematic cross-sectional view of a loop antenna array embodiment of the present invention. Figure 2 is a top view structural schematic of a loop antenna array embodiment of the present invention. Figure 3 is a side view schematic of a loop antenna array embodiment of the present invention. The invention provides a radar 10 with a loop antenna array, comprising: the device comprises a metal outer frame 1, a plurality of amplitude-phase control circuits 2, a control circuit 3, a frequency conversion transceiving circuit 4, a plurality of power combinations 5, a plurality of energy storage material pieces 6, a metal top plate 7 and a plurality of connectors 8.
The metal outer frame 1 is enclosed by the inner ring 11, the outer ring 12 and the bottom plate 13 to form an annular cylindrical containing cavity 19. Referring to fig. 2, in the present embodiment, the inner ring 11 and the outer ring 12 are both circular rings.
The amplitude control circuit 2, the control circuit 3 and the frequency conversion transceiving circuit 4 are horizontally arranged in the accommodating cavity 19 at intervals from top to bottom. For example, the amplitude-phase control circuit 2 is located at the uppermost layer, the frequency conversion transceiver circuit 4 is located at the lowermost layer, and the control circuit 3 is centered. The amplitude-phase control circuit 2, the control circuit 3 and the frequency conversion transceiving circuit 4 are in modular design and are provided with internal circuits and metal frames for packaging the circuits.
Referring collectively to fig. 4, fig. 4 is a side view structural schematic of a single power combination in a circular array embodiment of the present invention. Each of the power combinations 5 comprises: the power combining circuit 51 comprises a passive antenna, a power amplifier and a low-noise discharging circuit, a metal mounting piece 52 for mounting the power combining circuit 51, a radio frequency connector 53 arranged at the bottom side of the power combining circuit 51 and a metal frame 54 arranged at the front side of the power combining circuit 51. Each power pack 5 is electrically connected to the uppermost amplitude control circuit 2 via the rf connector 53.
Specifically, the power combining circuit 51 includes a circuit board and a device mounted on the front surface of the circuit board. For example, the circuit board is a multilayer PCB board or a multilayer LTCC (low temperature co-fired ceramic board).
The metal mount 52 includes a base 521 and a back 522 extending upwardly from the base 521. The back side of the circuit board of the power combining circuit 51 is fixed on the back portion 522. For example, the back surface of the circuit board of the power combining circuit 51 is fixed to the back portion 522 by soldering and/or bonding.
The metal frame 54 is provided with a plurality of receiving cavities for receiving the components on the front side of the circuit board of the power combining circuit 51. It is noted that in some embodiments, the metal frame 54 may be omitted.
And a plurality of energy storage material pieces 6 vertically inserted into the containing cavities 19. For example, the energy storage material is a phase change energy storage material, such as: the high-thermal-conductivity inorganic phase-change energy storage material comprises the following components in percentage by mass: 80-99.4% of energy storage material, 0.25-10% of nucleating agent, 0.1-15% of modifier, 0.1-15% of water and 0.15-19% of heat conduction reinforcing material; the energy storage material is crystalline hydrated salt, the nucleating agent is carbonate or borate, the modifying agent is polyacrylic acid emulsion or thickening powder, and the heat conduction reinforcing material is one or a mixture of more of graphite, carbon powder, copper powder, carbon fiber and silicon carbide powder.
The metal top plate 7 is disposed horizontally on the top of the housing cavity 19 in a ring shape and is fixedly connected to the metal outer frame 1. A plurality of first windows 71 corresponding to the plurality of power combinations 5 one by one and a plurality of second windows 72 corresponding to the plurality of energy storage material pieces 6 one by one are arranged on the power storage device. In the present embodiment, the metal top plate 7 is a circular ring with a circular opening at the center, and the inner edge thereof corresponds to the top end of the inner ring 11, and the outer edge thereof corresponds to the top end of the outer ring 12.
Specifically, the power combining circuit 51 is inserted into the first window 71, and the metal mounting member 52 is fixedly connected to the metal top plate 7. For example, the back 522 of the metal mounting member 52 is fixedly connected to the metal top plate 7 by a fastener passing through the metal top plate 7 up and down.
The energy storage material piece 6 is inserted in the second window 72, and two ends of the energy storage material piece are respectively contacted with the metal top plate 7 and the amplitude-phase control circuit 2 positioned at the uppermost layer. Specifically, the energy storage material part 6 is a phase change material, heat generated by the radio frequency circuit is conducted to the energy storage material part 6 through a metal structure, and the energy storage material converts the heat through phase change, so that high-power heat dissipation is realized.
A plurality of connectors 8 are provided on the outer ring 12 for communicating the internal circuitry of the ring antenna array 10 with external devices.
The benefits of the loop antenna array 10 of the present invention include, but are not limited to: by vertically placing a plurality of power combinations 5 in the accommodating cavity 19 and horizontally placing a plurality of phase control circuits 2, control circuits 3 and variable-frequency transceiving circuits 4 below the antenna combinations 5, the problems of difficult system layout, higher side lobe, difficult integration and the like can be solved, and meanwhile, irregular connection is realized; in addition, the energy storage material pieces 6 are arranged, so that the high-power heat dissipation capacity of the array can be enhanced, the structure is compact, and the miniaturization is facilitated.
Referring to fig. 5, fig. 5 is a schematic top view of another embodiment of a loop antenna array of the present invention. The present invention proposes a loop antenna array 10a, which is basically the same as the loop antenna array 10, and the differences are reflected in the shapes of the metal frames 1a, 1: one is a circular ring: the inner ring 11 and the outer ring 12 are both circular, the other is an elliptical ring: the inner ring 11a and the outer ring 12a are each elliptical.
Referring to fig. 6, fig. 6 is a schematic top view of a loop antenna array of another embodiment of the present invention. The present invention proposes a loop antenna array 10b, which is basically the same as the loop antenna array radar 10, and the differences are reflected in the shapes of the metal frames 1b and 1: one is a circular ring: the inner ring 11 and the outer ring 12 are both circular, and the other is a rectangular ring: the inner ring 11b and the outer ring 12b are both rectangular.
It is understood that, in the above-described embodiments, the metal outer frames 1, 1a, 1b are shaped as circular rings, elliptical rings or rectangular rings; in other embodiments, the metal frame may have other shapes such as polygonal shapes, as desired for practical applications.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention. All such modifications and variations are intended to be included herein within the scope of this disclosure and the present invention.
Claims (7)
1. A loop antenna array, comprising:
the metal outer frame (1) is enclosed by an inner ring (11), an outer ring (12) and a bottom plate (13) to form an annular cylindrical containing cavity (19);
a plurality of amplitude-phase control circuits (2), control circuits (3) and variable-frequency transceiving circuits (4) which are horizontally arranged in the accommodating cavity (19) at intervals from top to bottom;
a plurality of power assemblies (5) vertically inserted in the accommodating chambers (19) and arranged on the top side of the uppermost phase control circuit (2), wherein the power assemblies (5) comprise: the power combined circuit comprises a power combined circuit (51) consisting of a passive antenna, a power amplifier and a low-noise discharge circuit, a metal mounting part (52) for mounting the power combined circuit (51) and a radio frequency connector (53) arranged at the bottom side of the power combined circuit (51), wherein the power combined circuit (51) comprises a circuit board and a device arranged on the front side of the circuit board;
a plurality of energy storage material pieces (6) vertically inserted in the containing cavities (19);
the metal top plate (7) is annular, is horizontally arranged at the top of the accommodating cavity (19), is fixedly connected with the metal outer frame (1), and is provided with a plurality of first windows (71) which are in one-to-one correspondence with the power combinations (5) and a plurality of second windows (72) which are in one-to-one correspondence with the energy storage material pieces (6);
wherein, the power combination circuit (51) is arranged in the first window (71) in a penetrating way, and the metal mounting piece (52) is fixedly connected with the metal top plate (7); the energy storage material piece (6) is inserted in the second window (72), and two ends of the energy storage material piece are respectively contacted with the metal top plate (7) and the amplitude-phase control circuit (2) positioned at the uppermost layer.
2. The loop antenna array of claim 1, wherein: the metal mounting piece (52) comprises a base (521) and a back part (522) extending upwards from the base (521), and the back part (522) is fixedly connected with the metal top plate (7); the back surface of the power combining circuit (51) is fixed on the back part (522).
3. The loop antenna array of claim 2, wherein: the back part (522) is fixedly connected with the metal top plate (7) through a fastener which is vertically arranged on the metal top plate (7) in a penetrating way.
4. The loop antenna array of claim 2, wherein: the rear side of the power combining circuit (51) is fixed to the rear part (522) by welding and/or bonding.
5. The loop antenna array of claim 1, wherein: the power combination (5) is electrically connected with the amplitude phase control circuit (2) positioned at the uppermost layer by the radio frequency connector (53).
6. The loop antenna array of claim, wherein: each power combination (5) also comprises a metal frame (54) arranged on the front surface of the power combination circuit (51), and the metal frame (54) is provided with a plurality of accommodating cavities for correspondingly accommodating devices on the front surface of the power combination circuit (51).
7. The loop antenna array of any one of claims 1 to 6, wherein: the shape of the metal outer frame (1) is a circular ring, an elliptical ring or a rectangular ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010065674.5A CN111162387A (en) | 2020-01-20 | 2020-01-20 | Annular antenna array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010065674.5A CN111162387A (en) | 2020-01-20 | 2020-01-20 | Annular antenna array |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111162387A true CN111162387A (en) | 2020-05-15 |
Family
ID=70564571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010065674.5A Pending CN111162387A (en) | 2020-01-20 | 2020-01-20 | Annular antenna array |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111162387A (en) |
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2020
- 2020-01-20 CN CN202010065674.5A patent/CN111162387A/en active Pending
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