CN212968078U - Telemetering receiving antenna - Google Patents
Telemetering receiving antenna Download PDFInfo
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- CN212968078U CN212968078U CN202022438328.5U CN202022438328U CN212968078U CN 212968078 U CN212968078 U CN 212968078U CN 202022438328 U CN202022438328 U CN 202022438328U CN 212968078 U CN212968078 U CN 212968078U
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Abstract
The utility model provides a telemetering receiving antenna, which comprises an antenna array and a low-noise amplifier; the antenna array comprises a plurality of groups of omnidirectional antennas which are arranged up and down, wherein each group of omnidirectional antennas comprises a plurality of omnidirectional microstrip antennas which are circumferentially distributed and are positioned on the same horizontal plane; each group of omnidirectional antennas is connected between one group of power combiners and used for enabling the omnidirectional microstrip antennas to output a left-handed signal and a right-handed signal respectively; the low-noise amplifier is connected with the output end of the power combiner and is used for amplifying the signal received by the omnidirectional antenna with low noise and high gain; the low-noise amplifier comprises a plurality of stages of gallium arsenide amplifier tubes, and a dielectric filter is arranged between the gallium arsenide amplifier tubes. The utility model discloses a telemetering measurement receiving antenna, the biggest gain that can make omnidirectional antenna can reach 6dBi, and antenna output is left, right-handed signal, exports about 3dBi gain at last, makes the antenna performance satisfy the index requirement.
Description
Technical Field
The utility model relates to a telemetry field particularly, relates to a telemetering measurement receiving antenna.
Background
The ground telemetering receiving antenna is ground guarantee equipment which is matched with an aircraft to obtain flight data during flight, more commonly referred to as an omnidirectional antenna, and the omnidirectional antenna is a type of antenna which can realize 360-degree uniform radiation on a horizontal plane. In the fields of security and military, omnidirectional antennas are widely used for signal detection and interference.
With the continuous development of science and technology and society, the performance requirement on the omnidirectional antenna is higher and higher, and the demand on the omnidirectional antenna with high gain in a modern wireless application system is more and more urgent.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a telemetering measurement receiving antenna for satisfy 360 covers of qxcomm technology, and effectively guarantee the gain of antenna.
In order to realize the above purpose of the utility model, adopt the following technical scheme:
the utility model provides a telemetering receiving antenna, which comprises an antenna array and a low-noise amplifier;
the antenna array comprises a plurality of groups of omnidirectional antennas which are arranged up and down, wherein each group of omnidirectional antennas comprises a plurality of omnidirectional microstrip antennas which are circumferentially distributed and are positioned on the same horizontal plane;
each group of omnidirectional antennas is connected between one group of power combiners and used for enabling the omnidirectional microstrip antennas to output a left-handed signal and a right-handed signal respectively;
the low-noise amplifier is connected with the output end of the power combiner and is used for amplifying the signal received by the omnidirectional antenna with low noise and high gain;
the low-noise amplifier comprises a plurality of stages of gallium arsenide amplifier tubes, and a dielectric filter is arranged between the gallium arsenide amplifier tubes.
Further, the omnidirectional microstrip antenna is an S-band omnidirectional microstrip antenna.
Further, the omnidirectional microstrip antenna is a circularly polarized microstrip antenna.
Furthermore, the input signal frequency of the telemetering receiving antenna is 2200.5 MHz-2500.5 MHz.
Furthermore, the antenna array comprises a vertically arranged square upright post, a metal plate is attached to the side wall of the upright post, and the circularly polarized microstrip antenna is installed on the metal plate.
Furthermore, the circularly polarized microstrip antenna comprises two vertically crossed antenna substrates, and the antenna substrates are rectangular flat plates.
Further, the telemetering receiving antenna further comprises an antenna housing, and the antenna housing is of a cylindrical structure with an opening at the bottom end.
Further, the external diameter of antenna house is 260mm, and the top of antenna house includes the top cap of arc structure.
Further, the material of the antenna housing is polytetrafluoroethylene.
The utility model discloses a telemetering measurement receiving antenna comprises antenna array and the low noise amplifier that multiunit omnidirectional antenna constitutes, and the low noise amplifier passes through the merit and closes the left and right turn signal that the ware received omnidirectional antenna output, exports the telemetering measurement receiver after enlarging the processing. By the telemetering receiving antenna, the maximum gain of the omnidirectional antenna can reach 6dBi, the antenna outputs left and right-handed signals, and finally outputs about 3dBi gain, so that the performance of the antenna meets the index requirement.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram of an antenna array in the present invention;
fig. 2 is a schematic diagram of the omnidirectional antenna and power combiner of each group according to the present invention;
FIG. 3 is a schematic diagram of a low/medium noise amplifier according to the present invention;
fig. 4 is a schematic structural view of the antenna cover of the present invention;
fig. 5 is an assembly effect diagram of the telemetry receiving antenna of the present invention.
Description of reference numerals:
the antenna comprises an antenna array 1, a column 11, a metal plate 12, a circularly polarized microstrip antenna 2, an antenna substrate 21, an antenna housing 3 and a top cover 31.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings and detailed description, but those skilled in the art will understand that the following described embodiments are some, not all, of the embodiments of the present invention, and are only used for illustrating the present invention, and should not be construed as limiting the scope of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. The examples, in which specific conditions are not specified, were conducted under conventional conditions or conditions recommended by the manufacturer. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products available commercially.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific 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.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In order to clarify the technical solution of the present invention, the following description is made in the form of specific embodiments.
Examples
As shown in fig. 1-5, the present invention provides a telemetering receiving antenna, which includes an antenna array 1 and a low noise amplifier (not shown in the figure);
the antenna array 1 comprises two groups of omnidirectional antennas which are arranged up and down, each group of omnidirectional antennas comprises four omnidirectional microstrip antennas which are circumferentially distributed, each omnidirectional microstrip antenna is an S-band omnidirectional microstrip antenna, specifically a circularly polarized microstrip antenna 2, and adjacent circularly polarized microstrip antennas 2 are vertically arranged to form a 360-degree radiation surface of each omnidirectional antenna. Each group of omnidirectional antennas is arranged on the same horizontal plane, so that the telemetry signals can be stably received from the radiation space. The omnidirectional microstrip antenna is an S-waveband omnidirectional microstrip antenna, and the frequency of an input signal is 2200.5 MHz-2500.5 MHz.
Each group of omnidirectional antennas is connected between one group of power combiners, so that each circularly polarized microstrip antenna 2 outputs a left-handed signal and a right-handed signal respectively;
the low-noise amplifier is connected with the output end of the power combiner and is used for amplifying the signal received by the omnidirectional antenna with low noise and high gain;
the low-noise amplifier comprises a plurality of stages of gallium arsenide amplifier tubes, and a dielectric filter is arranged between the gallium arsenide amplifier tubes.
The utility model provides an antenna array 1 chooses for use multiunit S wave band qxcomm technology microstrip antenna according to service environment, omnidirectional microstrip antenna is a kind of novel antenna that develops gradually in recent years, be on a thin medium base plate (like polytetrafluoroethylene glass fiber pressfitting layer), the one side attaches the metal thin layer as the ground plate, the another side makes the metal paster of certain shape with methods such as photoetching corrosion, utilize microstrip line and axis probe to the paster feed, microstrip antenna has characteristics such as the size is little, temperature characteristic is good, electric index is stable.
The utility model provides an antenna array 1 is attached to have metal sheet 12 including the square stand 11 of perpendicular setting on every lateral wall of square stand 11, and circular polarization microstrip antenna 2 installs on metal sheet 12. Through the square upright post 11, the arrangement uniformity of the circularly polarized microstrip antenna 2 in the circumferential direction can be ensured, and the requirement of 360-degree space coverage is met.
The circularly polarized microstrip antenna 2 in this embodiment includes two antenna substrates 21 of a vertically crossed rectangular flat plate structure, and by this arrangement, the received signals can be made not to interfere with each other, and can be received to the surrounding space in a more open form, which is helpful to improve the gain of the antenna signals.
In order to satisfy 360 all-round covers of qxcomm technology to the antenna is the biggest and is greater than or equal to 5 dBi's design requirement at the all-round gain in horizontal plane, the utility model provides a every group all-round antenna specifically is the microstrip antenna group that comprises four circular polarization microstrip antenna 2, and adjacent circular polarization microstrip antenna 2 arranges perpendicularly, constitutes the square structure of all-round antenna, and every circular polarization microstrip antenna 2's cover face is 90 x 90.
The design parameters of the single circularly polarized microstrip antenna 2 are as follows: the center frequency is 2.35GHz, the size of the grounding plate is 45 multiplied by 50mm, the material of the dielectric plate is RogersRO04003, the relative dielectric constant is 3.38, and the thickness of the dielectric plate is 1 mm.
Each group of four circularly polarized microstrip antennas 2 is connected between a group of power combiners, one of the power combiners receives left-hand signals output by the four circularly polarized microstrip antennas 2 respectively, and the other power combiner receives right-hand signals output by the four circularly polarized microstrip antennas 2 respectively.
The signal output end of the omnidirectional antenna is connected with a low-noise amplifier, and the low-noise amplifier is mainly used for amplifying weak signals received by the antenna in low noise and high gain so as to ensure the receiving sensitivity of the system. The low noise amplifier adopts a gallium arsenide amplifying tube and has the characteristics of low noise coefficient, wide working frequency band, large dynamic range and the like. The gain of the single-stage amplifier is lower, and a cascade amplifier is required, so that a dielectric filter is arranged between stages of the gallium arsenide amplifier tube to filter out strong interference signals and improve the receiving anti-interference performance, the final-stage amplifier adopts an amplifier with higher output capability to ensure the linear amplification of in-band multi-target signals, and the input and output isolators can improve the stability of the amplifier. The signal input end of the radio frequency coupling network (omnidirectional antenna) is fed with a 12V power supply in a signal wire, the low-noise amplifier is placed at the output end and fed out, and the voltage is stabilized and sent to each amplifier, so that the number of cables for connecting the antenna and the down converter bracket is reduced.
The main parameters of the low noise amplifier are as follows:
the working frequency is as follows: 2200.5-2500.5 MHz;
gain: 30 +/-2 dB;
1dB bandwidth: not less than 300 MHz;
40dB bandwidth: less than or equal to 600 MHz;
noise coefficient: nf is less than or equal to 0.7 dB;
P-1dB:≥+12.8dBm；
input-output voltage standing wave ratio: rho is less than or equal to 1.5;
the power supply mode comprises the following steps: feeding electricity outside;
power supply voltage: + 12V;
a radio frequency interface: the input and the output are both SMA type seats.
In order to protect the internal elements of the telemetering receiving antenna, the antenna housing 3 is arranged on the outer side of the telemetering receiving antenna, the antenna housing 3 is of a cylindrical structure with an opening at the bottom end, and the omnidirectional antenna 1, the low-noise amplifier and the like can be effectively accommodated on the inner side of the antenna housing 3.
In order to avoid the influence of the antenna housing 3 on signal reception, the material of the antenna housing 3 in this embodiment is polytetrafluoroethylene, and the polytetrafluoroethylene has an excellent wave-transparent effect, which is as high as 95%, and does not affect the normal use function while playing a role in protection.
The external diameter of antenna housing 3 is 260mm in this embodiment, and the top of antenna housing 3 is cambered surface structure's top cap 31, and this kind of mode of setting can effectively prevent top ponding, prevents that components and parts from causing the corruption.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (9)
1. A telemetering receiving antenna is characterized by comprising an antenna array and a low-noise amplifier;
the antenna array comprises a plurality of groups of omnidirectional antennas which are arranged up and down, wherein each group of omnidirectional antennas comprises a plurality of omnidirectional microstrip antennas which are circumferentially distributed and are positioned on the same horizontal plane;
each group of omnidirectional antennas is connected between one group of power combiners and used for enabling the omnidirectional microstrip antennas to output a left-handed signal and a right-handed signal respectively;
the low-noise amplifier is connected with the output end of the power combiner and is used for amplifying the signal received by the omnidirectional antenna with low noise and high gain;
the low-noise amplifier comprises a plurality of stages of gallium arsenide amplifier tubes, and a dielectric filter is arranged between the gallium arsenide amplifier tubes.
2. The telemetry receiving antenna of claim 1, wherein the omnidirectional microstrip antenna is an S-band omnidirectional microstrip antenna.
3. The telemetry receiving antenna of claim 1, wherein the omnidirectional microstrip antenna is a circularly polarized microstrip antenna.
4. The telemetry receiving antenna of claim 1, wherein the input signal frequency of the telemetry receiving antenna is between 2200.5MHz and 2500.5 MHz.
5. The telemetry receiving antenna of claim 3 wherein the antenna array comprises a vertically disposed square pillar having a metal plate affixed to a sidewall thereof, the circularly polarized microstrip antenna being mounted on the metal plate.
6. The telemetry receiving antenna of claim 5, wherein the circularly polarized microstrip antenna comprises two orthogonally crossed antenna substrates, the antenna substrates being rectangular plates.
7. A telemetry receiving antenna according to any of claims 1-6, further comprising a radome, the radome being a cylindrical structure with an open bottom end.
8. The telemetry receiving antenna of claim 7, wherein the radome has an outer diameter of 260mm and a top portion comprising a dome.
9. The telemetry and reception antenna of claim 7, wherein the radome is made of polytetrafluoroethylene.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022438328.5U CN212968078U (en) | 2020-10-28 | 2020-10-28 | Telemetering receiving antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022438328.5U CN212968078U (en) | 2020-10-28 | 2020-10-28 | Telemetering receiving antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212968078U true CN212968078U (en) | 2021-04-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022438328.5U Active CN212968078U (en) | 2020-10-28 | 2020-10-28 | Telemetering receiving antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212968078U (en) |
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2020
- 2020-10-28 CN CN202022438328.5U patent/CN212968078U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231218 Address after: Room 603, 6th Floor, Building A, Tsinghua Information Port R&D Building, Nanshan District, Shenzhen City, Guangdong Province, 518000 Patentee after: SHENZHEN ZHONGHANG SHIXING TECHNOLOGY CO.,LTD. Address before: 101199 no.1903, unit 19, building 1, yijiajiajiayuan, Tongzhou District, Beijing Patentee before: BEIJING RUILITONG ELECTRONIC TECHNOLOGY CO.,LTD. |
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| TR01 | Transfer of patent right |