CN217114818U - Airborne dual-polarization small-sized monitoring direction-finding antenna array - Google Patents
Airborne dual-polarization small-sized monitoring direction-finding antenna array Download PDFInfo
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- CN217114818U CN217114818U CN202220471094.0U CN202220471094U CN217114818U CN 217114818 U CN217114818 U CN 217114818U CN 202220471094 U CN202220471094 U CN 202220471094U CN 217114818 U CN217114818 U CN 217114818U
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Abstract
The utility model discloses an airborne dual-polarized small monitoring direction-finding antenna array, which comprises a circular antenna chassis at the bottom and a circular antenna top disk at the top, a vertical monitoring antenna is arranged at the center of the circular antenna chassis, 4 vertical antenna arrays are uniformly distributed at the edge of the circular antenna chassis, a horizontal monitoring antenna is arranged at the center of a circle of a circular antenna top disc, 4 horizontal antenna arrays are uniformly distributed at the edge of the circular antenna top disc, a monitoring antenna is formed by a vertical monitoring antenna and the horizontal monitoring antenna, a direction-finding antenna array is formed by 4 vertical antenna arrays and 4 horizontal antenna arrays, the 4 vertical antenna arrays and the 4 horizontal antenna arrays are both connected to the same antenna change-over switch, the antenna change-over switch is electrically connected with the multichannel signal receiving and transmitting processing unit through the amplifier, and the multichannel signal receiving and transmitting processing unit is also electrically connected with the vertical monitoring antenna. The utility model discloses a small-size monitoring direction-finding antenna array of airborne double polarization through antenna structure integrated design, minimum array element figure design, has solved the miniaturized problem of antenna to broadband, double polarization receipt have been realized.
Description
Technical Field
The utility model relates to a radio monitoring direction-finding antenna array design field, specific theory relates to an airborne broadband dual polarization miniaturized monitoring direction-finding antenna array in this field.
Background
The monitoring direction-finding antenna array is a key component of an airborne radio monitoring direction-finding system, and the existing airborne monitoring direction-finding antenna does not well solve the contradiction between the size of the antenna and factors such as an antenna coverage frequency band and a polarization mode.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an airborne dual-polarization small-size monitoring direction-finding antenna array is provided.
In order to solve the technical problem, the utility model discloses a following technical scheme:
an airborne dual-polarization small-sized monitoring direction-finding antenna array is improved in that: including the circular antenna chassis of bottom and the circular antenna top dish at top, the centre of a circle on circular antenna chassis sets up perpendicular monitoring antenna, 4 vertical antenna array of edge equipartition at circular antenna chassis, the centre of a circle at circular antenna top dish sets up horizontal monitoring antenna, 4 horizontal antenna array of edge equipartition at circular antenna top dish, constitute monitoring antenna by vertical monitoring antenna and horizontal monitoring antenna, constitute the direction finding antenna array by 4 vertical antenna array and 4 horizontal antenna array, 4 vertical antenna array and 4 horizontal antenna array all are connected to same antenna change over switch, this antenna change over switch passes through the amplifier and is connected with multichannel signal receiving and dispatching processing unit electricity, multichannel signal receiving and dispatching processing unit still is connected with vertical monitoring antenna electricity.
Further, the antenna housing covers the round antenna bottom disc and the round antenna top disc.
Furthermore, an electronic cabin is arranged at the bottom of the circular antenna chassis, and a cable interface is arranged at the bottom of the electronic cabin.
Furthermore, the circular antenna top plate is made of epoxy resin materials.
Furthermore, the vertical antenna arrays are active dipole omnidirectional antennas, and each vertical antenna array and the corresponding matching amplification circuit thereof are concentrated on one printed board.
Furthermore, the horizontal antenna array is an active cross dipole antenna.
Furthermore, a vertical antenna array contact and a horizontal antenna array contact of the antenna change-over switch are separated, and a four-out-of-one working mode is adopted respectively.
The utility model has the advantages that:
the utility model discloses a small-size monitoring direction-finding antenna array of airborne double polarization through antenna structure integrated design, minimum array element figure design, has solved the miniaturized problem of antenna to broadband, double polarization receipt have been realized.
The utility model discloses a small-size monitoring direction-finding antenna array of airborne double polarization has realized miniaturized design, broadband design, the dual polarization design of airborne monitoring direction-finding antenna to and with the design of receiver integration, can install on multiple models such as unmanned aerial vehicle, helicopter, fixed wing aircraft, but wide application in fields such as radio reconnaissance direction-finding.
Drawings
Fig. 1 is a block diagram of an airborne dual-polarized small-sized monitoring direction-finding antenna array disclosed in embodiment 1 of the present invention;
fig. 2 is a schematic top view of an airborne dual-polarized small-sized monitoring direction-finding antenna array disclosed in embodiment 1 of the present invention;
fig. 3 is a schematic structural view of an airborne dual-polarized small monitoring direction-finding antenna array disclosed in embodiment 1 of the present invention;
fig. 4 is a schematic structural diagram of a vertical antenna array in the airborne dual-polarized small-sized monitoring direction-finding antenna array disclosed in embodiment 1 of the present invention;
fig. 5 is a schematic structural diagram of a horizontal antenna array in the airborne dual-polarized small-sized monitoring direction-finding antenna array disclosed in embodiment 1 of the present invention;
fig. 6 is a schematic structural diagram of a vertical monitoring antenna in the airborne dual-polarized small-sized monitoring direction-finding antenna array disclosed in embodiment 1 of the present invention.
1-vertical monitoring antenna, 2-vertical antenna array, 3-horizontal monitoring antenna, 4-horizontal antenna array, 5-antenna change over switch, 6-amplifier, 7-multichannel signal receiving and dispatching processing unit, 8-antenna house, 9-electron cabin, 10-cable interface.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The vertical monitoring antenna 1 is arranged at the center of the circle of the circular antenna chassis, as shown in fig. 6, the vertical monitoring antenna is in a monopole antenna form, and the antenna oscillator is a metal cylinder and can be used as a feeder line routing pipeline of the horizontal monitoring antenna. 4 vertical antenna array 2 of edge equipartition at circular antenna chassis, set up horizontal monitoring antenna 3 in the centre of a circle of circular antenna top dish, 4 horizontal antenna array 4 of edge equipartition at circular antenna top dish constitute monitoring antenna by vertical monitoring antenna and horizontal monitoring antenna, and monitoring antenna is dual polarization single-element antenna, is located antenna array central point and puts.
The direction-finding antenna array is composed of 4 vertical antenna elements and 4 horizontal antenna elements, is a dual-polarized 4-element uniform circular array and comprises 4 groups of orthogonal dual-polarized antenna elements and corresponding matching networks. 4 vertical antenna array and 4 horizontal antenna array all are connected to same antenna change over switch 5, and this antenna change over switch passes through amplifier 6 and is connected with multichannel signal receiving and dispatching processing unit 7 electricity, and multichannel signal receiving and dispatching processing unit still is connected with vertical monitoring antenna electricity. The vertical antenna channel, the horizontal antenna channel and the monitoring antenna channel are mutually independent and work simultaneously, the receiving of signals of two orthogonal polarization modes is completed simultaneously, and the direction finding and the monitoring processing of the signals are realized simultaneously by relying on a rear-end multi-channel receiver.
As shown in fig. 4, the vertical antenna elements are active dipole omnidirectional antennas, and each vertical antenna element and its corresponding matching amplification circuit are concentrated on one printed board.
The vertical antenna array adopts a printed board dipole loading electrically small antenna form, and the antenna has small volume, light weight and flexible loading point setting. The impedance is reduced by loading the resistance, the capacitance and the inductance, and the rear end is connected with an amplifying circuit to improve the gain of the antenna.
As shown in fig. 5, the horizontal antenna elements are active crossed dipole antennas. The horizontal antenna array is a broadband electrically small antenna, and a high-impedance multi-loop loading antenna is formed by adopting the crossed oscillators, so that the sufficient effective receiving area can be ensured, and meanwhile, the intra-loop loading points of the formed antenna are increased. Different inductance, capacitance and resistance are loaded on different ringlets according to different frequency bands to form different matching networks, so that broadband matching is realized. The total loading reactance value is distributed in parallel, the integral reactance value of the antenna is reduced, the loss is reduced, and the antenna gain is improved. After passing through the matching network, the antenna is connected with an amplifying circuit with 50 omega impedance, so that the gain of the antenna is more effectively improved.
The vertical antenna array contact and the horizontal antenna array contact of the antenna change-over switch are separated, and a four-out-of-one working mode is adopted respectively. A controllable amplifier is added at the main port, and the amplifier can select a direct connection or amplification working mode by software according to the signal intensity, so that the system adaptability is improved.
Claims (7)
1. An airborne dual-polarization small-sized monitoring direction-finding antenna array is characterized in that: including the circular antenna chassis of bottom and the circular antenna top dish at top, the centre of a circle on circular antenna chassis sets up perpendicular monitoring antenna, 4 vertical antenna array of edge equipartition at circular antenna chassis, the centre of a circle at circular antenna top dish sets up horizontal monitoring antenna, 4 horizontal antenna array of edge equipartition at circular antenna top dish, constitute monitoring antenna by vertical monitoring antenna and horizontal monitoring antenna, constitute the direction finding antenna array by 4 vertical antenna array and 4 horizontal antenna array, 4 vertical antenna array and 4 horizontal antenna array all are connected to same antenna change over switch, this antenna change over switch passes through the amplifier and is connected with multichannel signal receiving and dispatching processing unit electricity, multichannel signal receiving and dispatching processing unit still is connected with vertical monitoring antenna electricity.
2. The airborne dual polarized compact surveillance direction-finding antenna array of claim 1, wherein: and the antenna housing is covered outside the circular antenna base plate and the circular antenna top plate.
3. The airborne dual polarized compact surveillance direction-finding antenna array of claim 1, wherein: an electronic cabin is arranged at the bottom of the circular antenna chassis, and a cable interface is arranged at the bottom of the electronic cabin.
4. The airborne dual polarized compact surveillance direction-finding antenna array of claim 1, wherein: the circular antenna top plate is made of epoxy resin materials.
5. The airborne dual polarized compact surveillance direction-finding antenna array of claim 1, wherein: the vertical antenna arrays are active dipole omnidirectional antennas, and each vertical antenna array and the corresponding matching amplification circuit thereof are concentrated on one printed board.
6. The airborne dual polarized compact surveillance direction-finding antenna array of claim 1, wherein: the horizontal antenna array is an active cross dipole antenna.
7. The airborne dual polarized compact surveillance direction-finding antenna array of claim 1, wherein: the vertical antenna array contact and the horizontal antenna array contact of the antenna change-over switch are separated, and a four-out-of-one working mode is adopted respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220471094.0U CN217114818U (en) | 2022-03-04 | 2022-03-04 | Airborne dual-polarization small-sized monitoring direction-finding antenna array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220471094.0U CN217114818U (en) | 2022-03-04 | 2022-03-04 | Airborne dual-polarization small-sized monitoring direction-finding antenna array |
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| CN217114818U true CN217114818U (en) | 2022-08-02 |
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| CN202220471094.0U Active CN217114818U (en) | 2022-03-04 | 2022-03-04 | Airborne dual-polarization small-sized monitoring direction-finding antenna array |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116593956A (en) * | 2023-07-19 | 2023-08-15 | 成都大公博创信息技术有限公司 | Full-band space spectrum monitoring direction-finding system with multi-antenna array and host integrated design |
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2022
- 2022-03-04 CN CN202220471094.0U patent/CN217114818U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116593956A (en) * | 2023-07-19 | 2023-08-15 | 成都大公博创信息技术有限公司 | Full-band space spectrum monitoring direction-finding system with multi-antenna array and host integrated design |
| CN116593956B (en) * | 2023-07-19 | 2023-09-29 | 成都大公博创信息技术有限公司 | Full-band space spectrum monitoring direction-finding system with multi-antenna array and host integrated design |
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