CN216488514U - Miniaturized missile-borne communication antenna - Google Patents
Miniaturized missile-borne communication antenna Download PDFInfo
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- CN216488514U CN216488514U CN202122989170.5U CN202122989170U CN216488514U CN 216488514 U CN216488514 U CN 216488514U CN 202122989170 U CN202122989170 U CN 202122989170U CN 216488514 U CN216488514 U CN 216488514U
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Abstract
The utility model relates to a miniaturized missile-borne communication antenna which comprises a radiation patch, a ground plate, a dielectric plate, a joint, a short circuit arm and a patch resistor, wherein the dielectric plate is a PCB (printed circuit board) with high dielectric constant and high thickness, the dielectric constant of the dielectric plate is greater than 9.8, the thickness of the dielectric plate is greater than 15mm, the middle part of the short circuit arm is disconnected, and the patch resistor is welded at the disconnected part of the short circuit arm. The resistance value of the patch resistor is not less than 100 ohms, the upward protruding upright posts are arranged at the left end and the right end of the ground plate, and the length size of the radiation patch is jointly reduced while the normal performance of the antenna is ensured by using the dielectric plate, the short circuit arm and the ground plate. The length of the radiation patch is only 0.27 times of the wavelength of the microstrip line, the radiation patch is smaller than 0.5 times of the wavelength of the microstrip line of the microstrip antenna, the size length of the whole antenna is only 0.31 times of the wavelength of the microstrip line, and the antenna achieves the purpose of miniaturization for a missile-borne antenna system which requires to achieve small size.
Description
Technical Field
The utility model belongs to the technical field of antennas for missile-borne communication systems, and particularly relates to a miniaturized missile-borne communication antenna.
Background
In a missile-borne communication system, in order to reduce the weight and size of the communication system, a missile-borne antenna needs to have a miniaturization characteristic, and at present, the missile-borne antenna is generally in the form of a microstrip antenna, and the radiation patch length of a conventional microstrip antenna is 0.5 times of the wavelength of the microstrip line of an operating frequency. However, for some elastomers, the antenna is required to be smaller in size and lighter in weight, that is, the length of the radiating patch needs to be less than 0.5 times of the wavelength of the microstrip line, and the traditional microstrip antenna can not be realized basically. If the antenna size is forcibly reduced, the antenna performance becomes problematic.
As described in the document of "niee is on the level, antenna engineering handbook, electronic science and technology university press", the length dimension of the microstrip antenna radiation patch is 0.5 times the wavelength of the microstrip line. But cannot meet the requirements of smaller sized scenes.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems and provides a miniaturized missile-borne communication antenna, wherein the length of a radiation patch is only 0.27 times of the wavelength of a microstrip line, is less than 0.5 times of the wavelength of the microstrip line of the microstrip antenna, and the size length of the whole antenna is only 0.31 times of the wavelength of the microstrip line.
In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a miniaturized missile-borne communication antenna, includes radiation paster, ground plate, dielectric plate, joint, its characterized in that: the radiation patch is arranged above the dielectric plate, the ground plate is arranged at the bottom of the dielectric plate, upright posts protruding upwards are arranged at the left end and the right end of the ground plate, an inner core of the joint penetrates through the dielectric plate to be connected with the radiation patch, a flange plate of the joint is connected with the ground plate, a short circuit arm is arranged on one side far away from the joint, one end of the short circuit arm is connected with the radiation patch, the other end of the short circuit arm is connected with the ground plate, the middle part of the short circuit arm is disconnected, and a patch resistor is welded at the disconnection position of the middle part of the short circuit arm.
Further: the dielectric plate is a PCB plate with high dielectric constant, the dielectric constant of the dielectric plate is more than 908, and the thickness of the dielectric plate is more than 15 mm.
Further: the radiation patch is of a square metal structure and is used for transmitting or receiving electromagnetic waves.
Further: the resistance value of the chip resistor is more than or equal to 100 ohms.
Further: the radiation patch, the grounding plate and the short circuit arm are all made of metal materials.
Compared with the prior art, the utility model has the beneficial effects that:
a miniaturized missile-borne communication antenna comprises a radiation patch, a ground plate, a dielectric plate, a short-circuit arm, a patch resistor and a connector, wherein the dielectric plate is a PCB (printed circuit board) with high dielectric constant and high thickness, the dielectric constant of the dielectric plate is greater than 9.8, the thickness of the dielectric plate is greater than 15mm, the middle part of the short-circuit arm is disconnected, and the patch resistor is welded at the disconnected part of the short-circuit arm. The resistance value of the patch resistor is not less than 100 ohms, the upright posts protruding upwards are arranged at the left end and the right end of the ground plate, and the length size of the radiation patch is reduced jointly when the normal performance of the antenna is ensured by using the dielectric plate, the short circuit arm and the ground plate.
The length of the radiation patch is only 0.27 times of the wavelength of the microstrip line, is less than 0.5 times of the wavelength of the microstrip line of the microstrip antenna, the size length of the whole antenna is only 0.31 times of the wavelength of the microstrip line, and the antenna achieves the purpose of miniaturization for a missile-borne antenna system required to achieve small size.
Drawings
In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings needed to be used in the description of the embodiment will be briefly introduced below, it is obvious that the drawings in the following description are only for more clearly illustrating the embodiment of the present invention or the technical solution in the prior art, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a side view of the overall structural schematic of the present invention;
FIG. 3 is a schematic view of a dielectric plate structure according to the present invention;
fig. 4 is a schematic view of the grounding plate structure of the present invention;
FIG. 5 is a schematic diagram of the voltage standing wave ratio of the miniaturized missile-borne communication antenna according to the utility model;
FIG. 6 is a low frequency gain pattern of a miniaturized missile-borne communication antenna of the present invention;
in the figure: 1-radiation patch, 2-patch resistor, 3-short circuit arm, 4-connector, 5-dielectric plate and 6-grounding plate.
Detailed Description
In order to make the technical solutions of the present invention better understood and implemented by those skilled in the art, the present invention is further described with reference to the following specific examples, which are provided for illustration only and are not intended to limit the present invention.
Fig. 1-4 a miniaturized missile-borne communication antenna, including radiation paster 1, ground plate 6, dielectric plate 5, joint 4, the top of dielectric plate 5 is equipped with radiation paster 1, the bottom is equipped with ground plate 6, both ends are equipped with the stand of upwards protruding about ground plate 6, the inner core that connects 4 passes dielectric plate 5 and is connected with radiation paster 1, and the ring flange that connects 4 is connected with ground plate 6, is keeping away from one side that connects 4 is equipped with short circuit arm 3, the one end of short circuit arm 3 is connected with radiation paster 1, and the other end is connected with ground plate 6, the mid portion disconnection of short circuit arm 3, the welding of the mid portion disconnection department of short circuit arm 3 has paster resistance 2, and paster resistance 2 resistance is not less than 100 ohm.
The dielectric plate 5 is a PCB plate with high dielectric constant and high thickness, namely the dielectric constant of the dielectric plate 5 is more than 9.8, and the thickness is more than 15 mm;
the use of the dielectric plate, the short circuit arm and the grounding plate can ensure the normal performance of the antenna and simultaneously reduce the length size of the radiation patch;
the radiation patch is of a square metal structure and plays a role in transmitting or receiving electromagnetic waves, the length of the radiation patch is only 0.27 times of the wavelength of the microstrip line and is smaller than 0.5 times of the wavelength of the microstrip line of the microstrip antenna, and the size length of the whole antenna is also only 0.31 times of the wavelength of the microstrip line.
Fig. 5 is a schematic diagram showing voltage standing wave ratio of the miniaturized missile-borne antenna, wherein the voltage standing wave ratio is less than 2.37;
the gain pattern of the miniaturized missile-borne communication antenna at low frequency is larger than-12 dB as shown in figure 6.
The pipe fitting point and the protection point of the utility model are that
The dielectric plate is a PCB plate with high dielectric constant and higher thickness, namely the dielectric constant of the dielectric plate is more than 9.8, and the thickness is more than 15 mm;
one end of the short-circuit arm is connected with the radiation patch, the other end of the short-circuit arm is connected with the ground plate, the middle part of the short-circuit arm is disconnected, the patch resistor is welded at the disconnected part of the short-circuit arm, and the resistance value of the patch resistor is not less than 100 ohms;
the left end and the right end of the grounding plate are provided with upright post structures protruding upwards.
The length of a traditional missile-borne antenna radiation patch is 0.5 time of the wavelength of a microstrip line of working frequency, the antenna greatly shortens the length size of the antenna, the length of the radiation patch is only 0.27 time of the wavelength of the microstrip line of the working frequency, the length of the whole antenna size is only 0.31 time of the wavelength of the microstrip line, and the aim of miniaturization is achieved for a missile-borne antenna system required to reach a small size.
The details of the utility model which are not described in detail are the prior art.
The foregoing is only a preferred embodiment of the present invention and is not limited to the description and implementation. All equivalent changes or modifications of the structure, features and principles described in the claims of the present invention should be included in the scope of the present invention.
Claims (5)
1. The utility model provides a miniaturized missile-borne communication antenna, includes radiation paster (1), ground plate (6), dielectric plate (5), joint (4), its characterized in that: the radiation patch antenna is characterized in that a radiation patch (1) is arranged above the dielectric plate (5), a ground plate (6) is arranged at the bottom of the dielectric plate (5), upward convex columns are arranged at the left end and the right end of the ground plate (6), an inner core of the joint (4) penetrates through the dielectric plate (5) to be connected with the radiation patch (1), a flange plate of the joint (4) is connected with the ground plate (6), a short circuit arm (3) is arranged on one side of the joint (4) and is far away from the one side of the joint (4), one end of the short circuit arm (3) is connected with the radiation patch (1), the other end of the short circuit arm is connected with the ground plate (6), the middle part of the short circuit arm (3) is disconnected, and a patch resistor (2) is welded at the disconnection position of the middle part of the short circuit arm (3).
2. A miniaturized missile-borne communication antenna according to claim 1, further comprising: the dielectric plate (5) is a PCB plate with high dielectric constant, the dielectric constant of the dielectric plate is more than 908, and the thickness of the dielectric plate is more than 15 mm.
3. A miniaturized missile-borne communication antenna according to claim 1, further comprising: the radiation patch (1) is of a square metal structure and is used for transmitting or receiving electromagnetic waves.
4. A miniaturized missile-borne communication antenna according to claim 1, further comprising: the resistance value of the chip resistor (2) is more than or equal to 100 ohms.
5. A miniaturized missile-borne communication antenna according to claim 1, further comprising: the radiation patch (1), the grounding plate (6) and the short circuit arm (3) are all made of metal materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122989170.5U CN216488514U (en) | 2021-12-01 | 2021-12-01 | Miniaturized missile-borne communication antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122989170.5U CN216488514U (en) | 2021-12-01 | 2021-12-01 | Miniaturized missile-borne communication antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216488514U true CN216488514U (en) | 2022-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122989170.5U Active CN216488514U (en) | 2021-12-01 | 2021-12-01 | Miniaturized missile-borne communication antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216488514U (en) |
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2021
- 2021-12-01 CN CN202122989170.5U patent/CN216488514U/en active Active
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