CN210897619U - Wide band section vehicle antenna integrated system - Google Patents
Wide band section vehicle antenna integrated system Download PDFInfo
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- CN210897619U CN210897619U CN201922379587.2U CN201922379587U CN210897619U CN 210897619 U CN210897619 U CN 210897619U CN 201922379587 U CN201922379587 U CN 201922379587U CN 210897619 U CN210897619 U CN 210897619U
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Abstract
The utility model discloses a wide band section vehicle antenna integrated system, including antenna structure, VHF/UHF frequency channel module and shortwave frequency channel module, antenna structure includes antenna base, lower radiator antenna mast, upper radiator antenna mast, lower radiator, upper radiator and adjusting part, and antenna base fixes at the automobile body top, and lower radiator antenna mast lower extreme fixes on antenna base, and the upper end is fixed with radiator antenna mast, and upper and lower radiator sets up respectively in upper and lower radiator antenna mast; the VHF/UHF frequency band module is fixed in the vehicle body, connected with the VHF/UHF radio station and connected with the upper radiator and the lower radiator through the radio frequency cable; the short wave frequency band module is fixed at the top of the vehicle body and connected with the short wave radio station, and the lower radiator, the short wave frequency band module, the adjusting component and the vehicle body form a loop. The system has the characteristics of wide frequency band, multi-antenna integration, high isolation and high gain, is mainly matched with military vehicle-mounted radio stations, and is suitable for field vehicle-mounted use.
Description
Technical Field
The utility model belongs to the technical field of wide band section wireless communication, in particular to wide band section vehicle antenna integrated system is applicable to multiple for military use vehicle radio station.
Background
At present, along with the rapid development of the national defense industry, military radio equipment of various frequency bands is largely installed and used, the updating and updating of the equipment are rapid, communication vehicles are all provided with a plurality of radio stations of different frequency bands for operating in the same vehicle, although the radio stations of the same frequency band can share one antenna through a multi-path coupler, the radio stations of different frequency bands still need to be provided with special antennas to be used as the antennas for vehicle-mounted use, the antenna is limited by the actual use area of the vehicle body, the problem of inevitable coupling exists among the antennas, the use of adjacent equipment can be influenced, and therefore the antennas need to be installed on the vehicles as few as possible to complete the coverage of most frequency bands. Therefore, research on the broadband integrated antenna is increasing.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: the utility model discloses mainly to the urgent demand in the aspect of current loading condition and multiantenna use, provide a wide band section vehicle antenna integrated system, this antenna integrated system not only has realized the operation requirement of three kinds of radio station wide band communication of shortwave, ultrashort wave and high-speed platform through the optimal design in the aspect of electrical property and structure, and the communication interference between three frequency band is little moreover, and antenna gain is high, and communication quality is good.
The technical scheme is as follows: in order to realize the purpose of the utility model, the utility model adopts the following technical scheme:
the utility model provides a wide band vehicle antenna integrated system, includes antenna structure, VHF/UHF frequency channel module and short wave frequency channel module, wherein: the antenna structure comprises an antenna base, a lower radiator antenna rod, an upper radiator antenna rod, a lower radiator, an upper radiator and an adjusting assembly, wherein the antenna base is fixed at the top of the vehicle body, the bottom of the antenna base is provided with a radio frequency port, the lower radiator antenna rod is fixed on the antenna base, the upper radiator antenna rod is fixed at the top end of the lower radiator antenna rod, the lower radiator is arranged in the lower radiator antenna rod, and the upper radiator is arranged in the upper radiator antenna rod; the VHF/UHF frequency band module is fixed in the vehicle body, connected with the VHF/UHF radio station and connected with the upper radiator and the lower radiator through the feeder; the short wave frequency band module is fixed at the top of the vehicle body and connected with the short wave radio station, and the lower radiator, the short wave frequency band module, the adjusting component and the vehicle body form a loop. The radio stations of short wave, VHF and UHF frequency bands can be shared or used independently; and the communication interference among the three frequencies is small, the antenna gain is high, and the communication quality is good.
The optional VHF/UHF frequency band module comprises a high-pass filter, the upper radiator and the lower radiator are connected with the high-pass filter through a radio frequency cable, and the high-pass filter is connected with the VHF/UHF radio station to realize communication of a 30-88 MHz frequency band and a 108-512 MHz frequency band. The high-pass filter can effectively reduce the influence of the short-wave frequency band on VHF/UHF frequency band communication, and the port isolation degree meets the index requirement.
Furthermore, the high-pass filter is arranged in the vehicle body, and the radio-frequency cable connected with the upper radiator and the lower radiator penetrates through the radio-frequency port at the bottom of the antenna base to be connected with the high-pass filter.
Optionally, the short wave frequency band module includes choke, short wave antenna tuner and low pass filter, and a choke port passes through the single line and is connected with the antenna base, and the antenna base passes through radio frequency cable and is connected with lower irradiator, and another port of choke passes through the single line and is connected with short wave antenna tuner port, and another port of short wave antenna tuner passes through radio frequency cable and is connected with low pass filter port, and another port of low pass filter is connected with the short wave radio station, realizes the short wave communication of 3 ~ 30MHz frequency channel. The choke and the low-pass filter are added, so that the mutual influence between the short wave frequency and the VHF/UHF frequency can be effectively reduced, and the port isolation degree meets the index requirement.
Optionally, the adjusting assembly comprises an inclined pull wire and an inclined pull wire box, the inclined pull wire box is fixedly installed at the top of the vehicle body, one end of the inclined pull wire is fixed at the joint of the lower radiator antenna rod and the upper radiator antenna rod, the other end of the inclined pull wire is fixed in the inclined pull wire box, and the inclined pull wire is automatically wound and unwound through the inclined pull wire box to realize the lodging of the antenna in any direction. The connection mode of the diagonal cable and the lower radiator of the antenna rod can replace the existing short-wave bow-shaped antenna, and short-wave communication of a 3-30 MHz frequency band is achieved.
Optionally, the antenna structure further comprises a metal connecting piece, the upper radiator antenna rod and the lower radiator antenna rod are connected through the metal connecting piece, the inclined pull wire of the adjusting assembly is connected with the metal connecting piece through a butterfly bolt, and an elastic pad is arranged on the butterfly bolt to prevent the automobile body from falling off from the inclined pull wire in the process of traveling.
Optionally, the antenna base is fixed on the top of the vehicle body through a flange, and the antenna base further comprises a buffer spring; in addition, the flange base dustproof cap is arranged, when the antenna is not used, the flange base dustproof cap is covered on the flange, and the flange can be prevented from being stained with dirt for a long time.
Optionally, the upper radiator works in a frequency band of 108 to 512MHz, and the lower radiator works in a frequency band of 3 to 30MHz and 30 to 88 MHz.
Optionally, the upper radiator antenna rod and the lower radiator antenna rod are both made of epoxy glass reinforced plastic materials; and the expansion pouring sealant is adopted for fixing, so that the anti-collision effect is good, and the index requirement is met.
Optionally, the upper radiator and the lower radiator are both whip radiators.
Has the advantages that: compared with the prior art, the utility model has the advantages of it is following:
(1) the antenna operates in three frequency bands: the antenna works in a short wave frequency band of 3-30 MHz, a frequency band of 30-88 MHz and a frequency band of 108-512 MHz at the same time, the antenna is erected vertically, and the length of a diagonal cable is adjusted through a diagonal cable box so that the antenna mast can be laid down in any direction. The short wave frequency band is combined with the lower radiator antenna rod through the inclined stay wire, and can replace a short wave bow-shaped antenna which is erected and used independently.
(2) Through the introduction of the matching circuit, the high-low pass filter and the choke, the three-frequency-band antenna has small mutual influence under the condition of simultaneous working, and the antennas have high isolation.
(3) The vertical whip radiator is protected by epoxy glass fiber reinforced plastic materials, so that the radiator can be well protected, and the anti-collision effect is good; the inclined stay wire is fixed on the antenna mast by adopting a butterfly bolt, the inclined stay wire box can quickly withdraw the inclined stay wire when the system is not in use, and all accessories are all arranged on the vehicle body at one time, so that the operation is simple, and the use and the maintenance are convenient.
Drawings
Fig. 1 is a schematic overall structure diagram of the wide-band vehicle-mounted antenna integrated system according to the present invention;
fig. 2 is an antenna size diagram of a wide band on-board antenna integrated system according to an embodiment of the present invention;
FIG. 3 is a short-wave frequency gain diagram of the wide-band on-board antenna integrated system of the present invention;
fig. 4 is a VHF band gain diagram of the wide band vehicle antenna integrated system of the present invention;
fig. 5 is a UHF band gain diagram of the wide band on-board antenna integrated system of the present invention;
FIG. 6 is a VHF/UHF standing-wave ratio diagram of the wide-band vehicle-mounted antenna integrated system of the present invention;
in the figure: 1. the antenna comprises an upper radiator antenna rod, 2, a metal connecting piece, 3, a lower radiator antenna rod, 4, an N-K radio frequency port, 5, a flange base dustproof cap, 6, an antenna base, 7, a high-pass filter, 8, a first single wire, 9, a choke, 10, a second single wire, 11, a first port of a short-wave antenna tuner, 12 of the short-wave antenna tuner, 13 of a second port of the short-wave antenna tuner, 14 of a radio frequency cable, 15 of a vehicle roof, 16 of a low-pass filter, 17 of the second port of the low-pass filter, 18 of an inclined pull wire box and 19 of an inclined pull wire.
Detailed Description
The technical solution of the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
A wide band vehicle antenna integrated system, includes antenna structure, ultra short wave (VHF)/high frequency station (UHF) frequency channel module and short wave frequency channel module, wherein: the antenna structure comprises an antenna base, a lower radiator antenna rod, an upper radiator antenna rod, a lower radiator, an upper radiator and an adjusting assembly, wherein the antenna base is fixed at the top of the vehicle body, the bottom of the antenna base is provided with a radio frequency port, the lower radiator antenna rod is fixed on the antenna base, the upper radiator antenna rod is fixed at the top end of the lower radiator antenna rod, the lower radiator is arranged in the lower radiator antenna rod, and the upper radiator is arranged in the upper radiator antenna rod; the VHF/UHF frequency band module is fixed in the vehicle body, connected with the VHF/UHF radio station and connected with the upper radiator and the lower radiator through the feeder; the short wave frequency band module is fixed at the top of the vehicle body and connected with the short wave radio station, and the lower radiator, the short wave frequency band module, the adjusting component and the vehicle body form a loop.
As shown in fig. 1, the antenna structure includes an antenna base 6, a lower radiator antenna rod 3, an upper radiator antenna rod 1, a lower radiator, an upper radiator and an adjusting assembly, the antenna base is mounted on the top of a vehicle body 15 according to a flange of a vehicle-mounted standard, and a radio frequency port 4 is arranged at the bottom of the antenna base; the upper radiator antenna rod 1 and the lower radiator antenna rod 3 are both made of epoxy glass reinforced plastic materials, the upper radiator antenna rod 1 and the lower radiator antenna rod 3 are connected through a metal connecting piece 2, and the lower radiator antenna rod is fixed on an antenna base; the upper radiator antenna rod 1 includes an upper radiator working at 108-512 MHz, and the lower radiator antenna rod includes a lower radiator working at 3-30 MHz and 30-88 MHz. The adjusting assembly comprises a diagonal cable 19 and a diagonal cable box 18, the diagonal cable box is fixedly mounted at the top of the vehicle body, one end of the diagonal cable is fixed in the diagonal cable box, the other end of the diagonal cable is fixed on the metal connecting piece 2, the diagonal cable 19 is connected with the metal connecting piece 2 on the antenna mast through a butterfly bolt, the butterfly bolt is provided with an elastic pad to prevent the diagonal cable from falling off when the vehicle body travels, and the diagonal cable is automatically collected and released through the diagonal cable box to realize the lodging of the antenna in any direction; the connection mode of the diagonal cable 19 and the lower radiator antenna rod 3 can replace the existing short wave bow-shaped antenna, so that short wave communication in a frequency band of 3-30 MHz is realized, wherein the lower radiator in the frequency bands of 3-30 MHz and 30-88 MHz shares the lower radiator antenna rod 3, and a radio frequency cable of the upper radiator working in the frequency band of 108-512 MHz penetrates through the interior of the lower radiator. Still be equipped with flange base dust cap 5 on the flange, when the antenna structure was packed up and is not used, establish on the flange with flange base dust cap cover, prevent for a long time need be stained with the dirt.
The VHF/UHF band module comprises a high pass filter 7 and the short wave band module comprises a choke 9, a short wave antenna tuner 12 and a low pass filter 16.
For realizing the integration of three kinds of wide band section antennas, can reduce the influence that three kinds of wide band section antennas were alternate each other again, as the utility model discloses the further attack of technical link is overcome, and upward irradiator passes base N-J radio frequency mouth 4 through the radio frequency cable with lower irradiator and connects the operating frequency scope to be 30 ~ 512MHz high pass filter 7, and the other N-K radio frequency export of high pass filter connects VHF/UHF radio station equipment through the radio frequency cable, realizes the communication of 30 ~ 88MHz frequency channel and 108 ~ 512MHz frequency channel. Choke 9 is through the bolted connection on first single line 8 and the antenna pedestal, choke 9 passes through the flange and is fixed in automobile body top, the first port 11 of short wave antenna tuner 12 is connected through second single line 10 in the other export of choke, the low pass filter 16 of work in 3 ~ 30MHz frequency band is connected through radio frequency cable 14 in the other export 13 of short wave antenna tuner 12, low pass filter's export 17 is used through the radio frequency cable connection short wave radio station, short wave antenna passes through the automatic tuning work of short wave antenna tuner 12. The lower radiator, the choke, the short wave antenna tuner, the low pass filter, the inclined pull wire take-up box and the vehicle body form a loop, and communication of a 3-30 MHz frequency band is achieved.
The antenna base, the upper radiator, the lower radiator, the choke, the short wave antenna tuner, the high pass filter, the low pass filter, the diagonal cable take-up box and accessories thereof are matched with one another for use, and the antenna base can be used for 3-512 MHz wide frequency band communication; and the method can also be used for the independent use of short wave, VHF and UHF frequency bands. The broadband communication method has the advantages that the use requirements of broadband communication of three vehicle-mounted radio stations of short waves, ultra-short waves and high-speed stations are met, communication interference among the three frequencies is small, antenna gain is high, and communication quality is good.
The antenna index requirement is as follows:
size: the total height of the upper radiator antenna rod, the lower radiator antenna rod and the antenna base is not more than 3 m;
gain: more than or equal to-25 dBi (3-30 MHz) and 6-3 dBi (30-512 MHz);
standing-wave ratio: less than 2 (3-30 MHz) and less than 3.5 (30-512 MHz);
port isolation: more than 25 dB;
collision avoidance: the impact point is more than 1m, and the vehicle speed is less than 20 Km/H.
As shown in fig. 2, in this embodiment, the total length of the upper radiator and the lower radiator is 2.4m, the diameter is 30mm, the length of the lower radiator is 1.6m, the height of the antenna base is 0.3m, and the total height of the antenna is 2.7 m.
Fig. 3 is a schematic diagram of gain in short-wave frequency band of the wideband vehicle-mounted antenna integrated system, where (a) is a schematic diagram of gain in 3MHZ frequency band, (b) is a schematic diagram of gain in 4.44MHZ frequency band, (c) is a schematic diagram of gain in 7.28MHZ frequency band, (d) is a schematic diagram of gain in 15.8MHZ frequency band, (e) is a schematic diagram of gain in 21.48MHZ frequency band, and (f) is a schematic diagram of gain in 30MHZ frequency band, and it can be seen from the diagram that the directional diagram of short-wave frequency band is relatively symmetric, and the gain in main radiation direction is greater than-25 dBi.
As shown in FIG. 4, the VHF band gain diagram has a frequency range of 30-88 MHz and a gain range of about-6-1.2 dBi.
FIG. 5 shows a schematic diagram of gain in UHF band, where the frequency is in the range of 108 to 512MHz and the gain range is about-1.6 to 4.2 dBi.
The standing wave ratio of the short-wave antenna is mainly tuned by a short-wave antenna tuner, the standing wave ratio of the VHF/UHF frequency band is higher because the 88-108 MHz frequency band is not used as shown in figure 6, but the use of the VHF/UHF frequency band is not influenced.
The VHF/UHF frequency band single-outlet antenna adopts an isolation anti-interference technology and has high isolation, and a 30-512 MHz high-pass filter is added at a radio frequency outlet of an antenna base, so that the influence of a short-wave frequency band on VHF/UHF frequency band communication can be effectively reduced; the choke and the low-pass filter are added, so that the mutual influence between the short wave frequency and the VHF/UHF frequency can be effectively reduced, and the port isolation degree meets the index requirement.
The antenna base is arranged on the vehicle body by the flange plate through four M10 bolts, the antenna base comprises a buffer spring, the upper radiator and the lower radiator are made of epoxy glass fiber reinforced plastic, the wave transmission performance is good, the dielectric loss is small, the strength is high, the upper radiator and the lower radiator of the antenna are fixed by adopting expansion pouring sealant, the anti-collision effect is good, and the index requirement is met.
When the antenna is used, if the short wave antenna is used for communication, a high-pass filter is installed, one end of the high-pass filter is connected with the N-J radio frequency port of the antenna base, and the other end of the high-pass filter is connected with a VHF/UHF radio station through a radio frequency cable; if the short-wave antenna is used for remote communication, the inclined stay wires in the inclined stay wire boxes are connected to the metal connecting piece through butterfly nuts, the short-wave antenna tuner is tuned, and short-wave signals are remotely received and transmitted through flag antennas formed by the lower radiator antenna rods and the inclined stay wires; if the short wave antenna is not used for long-distance communication, the steel wire inclined wires are not required to be connected with the antenna rod metal connecting piece through the butterfly bolts, and the lower radiator antenna rod is directly used for short-distance short wave signal receiving and transmitting. If short wave antenna is not used for communication, the N-J radio frequency port of the antenna base is connected with the VHF/UHF radio station through the radio frequency cable, the radio station directly uses the antenna whip body to receive and transmit VHF/UHF frequency band signals, and at the moment, the inclined pull wire can be withdrawn through the inclined pull wire box. The antenna integration system of the invention can be applied to different use requirements, can realize the simultaneous use of multiple frequency bands and can also realize the use of single frequency band. The high isolation of three frequency bands and small mutual interference are realized through a high-pass filter, a choke, a low-pass filter and corresponding electrical design, and the effect of efficiently receiving and transmitting signals of a radio station is achieved.
Claims (10)
1. The utility model provides a wide band on-vehicle antenna integrated system which characterized in that, includes antenna structure, VHF/UHF frequency channel module and short wave frequency channel module, wherein:
the antenna structure comprises an antenna base, a lower radiator antenna rod, an upper radiator antenna rod, a lower radiator, an upper radiator and an adjusting assembly, wherein the antenna base is fixed at the top of the vehicle body, the bottom of the antenna base is provided with a radio frequency port, the lower radiator antenna rod is fixed on the antenna base, the upper radiator antenna rod is fixed at the top end of the lower radiator antenna rod, the lower radiator is arranged in the lower radiator antenna rod, and the upper radiator is arranged in the upper radiator antenna rod;
the VHF/UHF frequency band module is fixed in the vehicle body, connected with the VHF/UHF radio station and connected with the upper radiator and the lower radiator through the feeder;
the short wave frequency band module is fixed at the top of the vehicle body and connected with the short wave radio station, and the lower radiator, the short wave frequency band module, the adjusting component and the vehicle body form a loop.
2. The wide band vehicle antenna integrated system of claim 1, wherein the VHF/UHF band module comprises a high pass filter, the upper radiator and the lower radiator are connected to the high pass filter through a radio frequency cable, and the high pass filter is connected to the VHF/UHF station.
3. The integrated wide band vehicle antenna system of claim 2, wherein the high pass filter is mounted in the vehicle body, and the rf cable connected to the upper radiator and the lower radiator passes through the rf port at the bottom of the antenna base to connect to the high pass filter.
4. The wide band vehicle antenna integrated system of claim 1, wherein the short band module comprises a choke, a short band antenna tuner and a low pass filter, one port of the choke is connected to the antenna base through a single wire, the antenna base is connected to the lower radiator through a radio frequency cable, the other port of the choke is connected to one port of the short band antenna tuner through a single wire, the other port of the short band antenna tuner is connected to one port of the low pass filter through a radio frequency cable, and the other port of the low pass filter is connected to the short band radio station.
5. The wide band on-board antenna integrated system of claim 1, wherein the adjusting assembly comprises a stay cable and a stay cable box, the stay cable box is fixedly installed on the top of the vehicle body, one end of the stay cable is fixed at the joint of the lower radiator antenna rod and the upper radiator antenna rod, the other end of the stay cable is fixed in the stay cable box, and the stay cable box automatically retracts the stay cable to realize the lodging of the antenna in any direction.
6. The system of claim 1, wherein the antenna structure further comprises a metal connector, the upper radiator antenna rod and the lower radiator antenna rod are connected by the metal connector, the diagonal wires of the adjusting assembly are connected to the metal connector by a butterfly bolt, and the butterfly bolt is provided with a spring pad.
7. The integrated system of claim 1, wherein the antenna base is fixed to the top of the vehicle body by a flange, and a dust cap is further provided.
8. The integrated system of claim 1, wherein the upper radiator operates in a 108-512 MHz band, and the lower radiator operates in 3-30 MHz and 30-88 MHz bands.
9. The integrated wide band vehicle antenna system of claim 1, wherein the upper radiator mast and the lower radiator mast are made of epoxy glass fiber reinforced plastic.
10. The integrated wide band vehicle antenna system of claim 1, wherein the upper and lower radiators are whip radiators.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922379587.2U CN210897619U (en) | 2019-12-26 | 2019-12-26 | Wide band section vehicle antenna integrated system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922379587.2U CN210897619U (en) | 2019-12-26 | 2019-12-26 | Wide band section vehicle antenna integrated system |
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| CN210897619U true CN210897619U (en) | 2020-06-30 |
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| CN201922379587.2U Active CN210897619U (en) | 2019-12-26 | 2019-12-26 | Wide band section vehicle antenna integrated system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112736405A (en) * | 2020-12-30 | 2021-04-30 | 东风越野车有限公司 | Vehicle-mounted short wave antenna device for controlling inverted bending through electric control |
| CN116345149A (en) * | 2023-05-29 | 2023-06-27 | 中国铁道科学研究院集团有限公司通信信号研究所 | Ultra-wideband high-isolation 5G vehicle-mounted antenna and communication system |
-
2019
- 2019-12-26 CN CN201922379587.2U patent/CN210897619U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112736405A (en) * | 2020-12-30 | 2021-04-30 | 东风越野车有限公司 | Vehicle-mounted short wave antenna device for controlling inverted bending through electric control |
| CN112736405B (en) * | 2020-12-30 | 2022-07-12 | 东风越野车有限公司 | Vehicle-mounted short wave antenna device for controlling inverted bending through electric control |
| CN116345149A (en) * | 2023-05-29 | 2023-06-27 | 中国铁道科学研究院集团有限公司通信信号研究所 | Ultra-wideband high-isolation 5G vehicle-mounted antenna and communication system |
| CN116345149B (en) * | 2023-05-29 | 2023-09-26 | 中国铁道科学研究院集团有限公司通信信号研究所 | Ultra-wideband high-isolation 5G vehicle-mounted antenna and communication system |
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