CN220895855U - Gooseneck multi-frequency omnidirectional antenna - Google Patents
Gooseneck multi-frequency omnidirectional antenna Download PDFInfo
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- CN220895855U CN220895855U CN202322655942.0U CN202322655942U CN220895855U CN 220895855 U CN220895855 U CN 220895855U CN 202322655942 U CN202322655942 U CN 202322655942U CN 220895855 U CN220895855 U CN 220895855U
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- 244000261422 Lysimachia clethroides Species 0.000 title claims abstract description 33
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- 239000004033 plastic Substances 0.000 claims abstract description 44
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 35
- 229910052802 copper Inorganic materials 0.000 claims abstract description 35
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- 229910000831 Steel Inorganic materials 0.000 claims description 12
- 239000011521 glass Substances 0.000 claims description 12
- 239000010959 steel Substances 0.000 claims description 12
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Abstract
The utility model relates to the technical field of antennas and discloses a gooseneck multi-frequency omni-directional antenna which comprises a radio frequency interface, wherein the inner wall of the radio frequency interface is fixedly connected with the bottom end of a coaxial cable, the outer wall of the coaxial cable is fixedly connected with a plastic sleeve, the top outer wall of the plastic sleeve is fixedly connected with a glass fiber reinforced plastic antenna housing, the inner wall of the glass fiber reinforced plastic antenna housing is sheathed with a large copper pipe, the inside of the glass fiber reinforced plastic antenna housing is sheathed with a metal piece, the top end of the coaxial cable is sheathed with a metal sleeve, the top end of the glass fiber reinforced plastic antenna housing is clamped with a plastic dustproof cap, the top of the radio frequency interface is fixedly connected with a metal sleeve, a section of coaxial cable penetrating through the metal sleeve is equivalent to an inductor through arranging the large copper pipe outside a coaxial cable core wire, and the two sections of coaxial cable together form LC impedance matching, so that the impedance bandwidth of the antenna can be realized, and the requirements of covering two frequency bands of 678-900 MHz and 1300-1950 MHz can be met.
Description
Technical Field
The utility model relates to the technical field of antennas, in particular to a gooseneck multi-frequency omni-directional antenna.
Background
In the field of communication, an external omni-directional antenna of a terminal is an antenna with wide application. The omni-directional antenna generally has two forms, namely a horizontal polarized omni-directional antenna and a vertical polarized omni-directional antenna, and the communication frequency band is wider and wider along with the development of the communication technology, from the original narrow-band communication to the current broadband and ultra-broadband communication to the current multi-frequency ultra-broadband communication.
According to a disclosed gooseneck omnidirectional antenna (publication number: CN 219226590U), in the above-mentioned application, through the setting of a supporting part and a supporting part, can support and design the body to prevent that it from taking place deformation, change the angle of bending, and then influence the quotation and receive, and through the setting of semicircle ring and fixed subassembly, be convenient for fix the semicircle ring, prevent semicircle ring slip influence the supporting effect of backup pad, and lead to the fact the destruction to the shape of body.
However, the existing external antenna technology of the terminal is generally basically a monopole or dipole antenna, if the low-frequency-band performance is considered, the antenna radiator tends to be long, if the antenna length exceeds 4-third-wavelength antenna pattern, the antenna radiation theory causes fission, the maximum gain is not in the horizontal plane, thus causing high-frequency-band performance deterioration, further greatly compromising the communication effect, the antenna covers 678-900 MHz and 1300-1950 MHz, and the antenna directivity level is ensured to be omnidirectional, the pattern is not fissile, and the antenna cannot be realized by adopting a common dipole antenna; in view of this, we propose a gooseneck multi-frequency omni-directional antenna.
Disclosure of utility model
The present utility model is directed to a gooseneck multi-frequency omni-directional antenna, which solves the above-mentioned problems.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a gooseneck multifrequency omnidirectional antenna, includes the radio frequency interface, the bottom of the inner wall fixedly connected with coaxial cable of radio frequency interface, the outer wall fixedly connected with plastic sleeve of coaxial cable, plastic sleeve's top outer wall fixedly connected with glass steel radome, big copper pipe has been cup jointed to glass steel radome's inner wall, metal piece has been cup jointed to glass steel radome's inside, metal sleeve has been cup jointed on coaxial cable's top, glass steel radome's top joint has plastic dust cap, radio frequency interface's top fixedly connected with metal sleeve, metal sleeve's internal surface joint has the one end of gooseneck sleeve, big copper pipe's bottom joint has plastic seal, big copper pipe's top joint has metal seal, cup jointed metal sleeve on the top outer wall of metal piece.
Preferably, the plastic sleeve, the plastic seal and the metal seal are internally provided with round holes matched with the outer diameter of the coaxial cable, and when the coaxial cable is installed, the coaxial cable is arranged in the round holes formed in the centers of the plastic sleeve and the large copper pipe.
Preferably, the plastic sealing is formed by two groups of small discs with small upper parts and large lower parts, the outer diameter of the large disc at one side far away from the large copper tube is matched with the inner diameter of the glass fiber reinforced plastic antenna housing, and the outer diameter of the small disc at one side close to the center of the large copper tube is matched with the inner diameter of the large copper tube, so that the plastic sealing can seal the bottom end of the large copper tube and simultaneously can tightly support the inner part of the glass fiber reinforced plastic antenna housing, and the position of the large copper tube is conveniently limited.
Preferably, a round hole matched with the metal sleeve in size is formed in the center of the metal piece, and the center of the metal sleeve is sleeved outside the top end of the coaxial cable.
Preferably, a certain interval is arranged between the top end of the metal sleeve and the top end of the glass fiber reinforced plastic antenna housing, so that the antenna is prevented from extending out of the glass fiber reinforced plastic antenna housing in the use process, and the antenna is difficult to be protected.
Preferably, the gooseneck sleeve is arranged between the metal sleeve and the plastic sleeve, and two ends of the gooseneck sleeve are respectively clamped with the inner walls of the metal sleeve and the plastic sleeve, so that the installation stability of the gooseneck sleeve is ensured.
Compared with the prior art, the utility model provides a gooseneck multi-frequency omni-directional antenna, which comprises the following components
The beneficial effects are that:
1. According to the gooseneck multi-frequency omni-directional antenna, the large copper pipe is arranged outside the coaxial cable core wire so as to be equivalent to a capacitor, a section of coaxial cable penetrating through the metal sleeve is equivalent to an inductor, and the large copper pipe and the coaxial cable form LC impedance matching under the combined action of the large copper pipe and the inductor, so that the impedance bandwidth of the antenna is expanded, and the requirements of covering two frequency bands of 678-900 MHz and 1300-1950 MHz can be met.
2. This gooseneck multifrequency omnidirectional antenna through being provided with the gooseneck cover, cooperation metal sleeve and plastic sleeve for the antenna can carry out the multi-angle rotation in the use, can guarantee simultaneously that coaxial cable can not receive external environment's invasion and attack in the use, improves coaxial cable's life.
Drawings
FIG. 1 is a schematic overall cross-sectional view of the present utility model;
FIG. 2 is a schematic diagram of the main structure of the present utility model;
FIG. 3 is an overall exploded view of the present utility model;
FIG. 4 is a standing wave diagram of an antenna of the present utility model;
Fig. 5 is a graph of the antenna of the present utility model at 678-900MHz (phi=0°) measured;
Fig. 6 is a graph of the antenna of the present utility model at 678-900MHz (phi=90°);
Fig. 7 is a graph of the antenna of the present utility model for 1300-1950MHz (phi=0°);
Fig. 8 is a graph of the actual measurement of 1300-1950MHz (phi=90°) for an antenna according to the present utility model.
In the figure: 1. a radio frequency interface; 2. a coaxial cable; 3. a plastic sleeve; 4. glass fiber reinforced plastic radome; 5. a large copper tube; 6. a metal piece; 7. a metal sleeve; 8. a plastic dust cap; 9. a metal connector; 10. a gooseneck sleeve; 11. a metal sleeve; 51. sealing with plastic; 52. and (5) metal sealing.
Detailed Description
As shown in fig. 1-3, the present utility model provides a technical solution: the utility model provides a gooseneck multifrequency omnidirectional antenna, including radio frequency interface 1, the bottom of the inner wall fixedly connected with coaxial cable 2 of radio frequency interface 1, the outer wall fixedly connected with plastic sleeve 3 of coaxial cable 2, the top outer wall fixedly connected with glass steel radome 4 of plastic sleeve 3, big copper pipe 5 has been cup jointed to the inner wall of glass steel radome 4, metal piece 6 has been cup jointed to the inside of glass steel radome 4, metal sleeve 7 has been cup jointed on the top of coaxial cable 2, the top joint of glass steel radome 4 has plastic dust cap 8, the top fixedly connected with metal connecting piece 9 of radio frequency interface 1, the one end of gooseneck cover 10 has been screwed to the internal surface of metal connecting piece 9, the bottom joint of big copper pipe 5 has plastic seal 51, the top joint of big copper pipe 5 has metal seal 52, cup joint metal sleeve 11 on the top outer wall of metal piece 6.
In one embodiment of the utility model, the plastic sleeve 3, the plastic seal 51 and the metal seal 52 are internally provided with round holes matched with the outer diameter of the coaxial cable 2, and when the coaxial cable 2 is installed, the coaxial cable 2 is arranged in the round holes arranged in the centers of the plastic sleeve 3 and the large copper pipe 5, meanwhile, the plastic sleeve 3 and the plastic dustproof cap 8 are respectively arranged at the bottom end and the top end of the glass fiber reinforced plastic antenna housing 4, so that the space of the inner wall of the glass fiber reinforced plastic antenna housing 4 is sealed, the falling of external dust, rainwater and the like is avoided, the normal communication function of the antenna is influenced, further, the metal piece 6 is arranged at the top end of the large copper pipe 5, the inner wall of the metal piece 6 is provided with holes matched with the outer diameter of the metal sleeve 7, so that the outer wall of the top end of the coaxial cable 2 is sleeved with the metal sleeve 7, the outer wall of the metal sleeve 7 is sleeved with the metal piece 6, and meanwhile, the top end of the metal piece 6 and the top end of the glass fiber reinforced plastic antenna housing 4 have a certain interval.
In the embodiment of the utility model, the plastic sealing 51 is formed by two groups of small discs with a small upper part and a large lower part, the outer diameter of the large disc at one side far away from the large copper tube 5 is matched with the inner diameter of the glass fiber reinforced plastic antenna housing 4, and the outer diameter of the small disc at one side close to the center of the large copper tube 5 is matched with the inner diameter of the large copper tube 5, so that the plastic sealing 51 can seal the bottom end of the large copper tube 5 and simultaneously can tightly support the inside of the glass fiber reinforced plastic antenna housing 4, the position of the large copper tube 5 is conveniently limited, the gooseneck sleeve 10 is arranged between the metal connecting piece 9 and the plastic sleeve 3, two ends of the gooseneck sleeve 10 are respectively clamped with the inner walls of the metal connecting piece 9 and the plastic sleeve 3, the installation stability of the gooseneck sleeve 10 is ensured, and simultaneously, a round hole matched with the metal sleeve 7 in size is formed in the center of the metal piece 6, the center of the metal sleeve 7 is sleeved on the outer side of the top end of the glass fiber reinforced plastic antenna housing 2, the top end of the metal sleeve 11 and the glass fiber reinforced plastic antenna housing 4 are further arranged, and a certain gap between the top end of the metal sleeve 11 and the glass fiber reinforced plastic antenna housing 4 is prevented from being difficult to extend out in the process of the antenna housing 4.
Referring to fig. 4 of the specification, the bandwidth of the antenna is greatly increased by testing with a network analyzer E5071C, the standing wave ratio is less than 3.5 in the frequency band of 600-3000 MHz, and then, referring to the following table, the antenna efficiency and gain corresponding to different frequencies can be seen.
Meanwhile, referring to fig. 5-8, the horizontal omnidirectional antenna can be seen, the high-frequency band test result data can be seen that the antenna signal transmission capacity is not fissile, and the omnidirectional antenna requirement can be completely met.
In the utility model, when in use, the large copper pipe 5 is arranged outside the core wire of the coaxial cable 2 so as to be equivalent to a capacitor, a section of the coaxial cable 2 penetrated in the metal sleeve 7 is equivalent to an inductor, the two sections of the coaxial cable 2 are combined to form LC impedance matching, the impedance bandwidth of the antenna is expanded, the requirements of covering two frequency bands of 678-900 MHz and 1300-1950 MHz can be met, and the gooseneck sleeve 10 is matched with the metal connecting piece 9 and the plastic sleeve 3, so that the antenna can rotate at multiple angles in the use process, meanwhile, the coaxial cable 2 can not be affected by the external environment in the use process, the service life of the coaxial cable 2 is prolonged, and meanwhile, the glass fiber reinforced plastic antenna housing 4 can play a role in protecting the antenna body.
The foregoing utility model has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.
Claims (6)
1. The utility model provides a gooseneck multifrequency omnidirectional antenna, includes radio frequency interface (1), the bottom of the fixedly connected with coaxial cable (2) of radio frequency interface (1), the outer wall fixedly connected with plastic sleeve (3) of coaxial cable (2), the top outer wall fixedly connected with glass steel radome (4) of plastic sleeve (3), its characterized in that: the inside of glass steel radome (4) has cup jointed metalwork (6), metal sheath (7) have been cup jointed on the top of coaxial cable (2), the top joint of glass steel radome (4) has plastics dust cap (8), the top fixedly connected with metal connecting piece (9) of radio frequency interface (1), the internal surface joint of metal connecting piece (9) has the one end of gooseneck cover (10), big copper pipe (5) have been cup jointed to the inner wall of glass steel radome (4), the bottom joint of big copper pipe (5) has plastics to seal (51), the top joint of big copper pipe (5) has metal to seal (52), metal sleeve (11) have been cup jointed on the top outer wall of metalwork (6).
2. A gooseneck multi-frequency omni-directional antenna as claimed in claim 1, wherein: the plastic sleeve (3), the plastic seal (51) and the metal seal (52) are internally provided with round holes matched with the outer diameter of the coaxial cable (2), and when the coaxial cable (2) is installed, the coaxial cable is arranged in the round holes formed in the centers of the plastic sleeve (3) and the large copper pipe (5).
3. A gooseneck multi-frequency omni-directional antenna as claimed in claim 1, wherein: the plastic sealing device is characterized in that the plastic sealing device (51) is formed by two groups of small discs with small upper parts and large lower parts, the outer diameter of the large disc on one side far away from the large copper tube (5) is matched with the inner diameter of the glass fiber reinforced plastic antenna housing (4), and the outer diameter of the small disc on one side close to the center of the large copper tube (5) is matched with the inner diameter of the large copper tube (5), so that the plastic sealing device (51) can seal the bottom end of the large copper tube (5) and simultaneously can tightly support the inside of the glass fiber reinforced plastic antenna housing (4), and the position of the large copper tube (5) is conveniently limited.
4. A gooseneck multi-frequency omni-directional antenna as claimed in claim 1, wherein: the center of the metal piece (6) is provided with a round hole matched with the metal sleeve (7) in size, and the center of the metal sleeve (7) is sleeved outside the top end of the coaxial cable (2).
5. A gooseneck multi-frequency omni-directional antenna as claimed in claim 1, wherein: a certain interval is arranged between the top end of the metal sleeve (11) and the top end of the glass fiber reinforced plastic antenna housing (4), so that the antenna is prevented from extending out of the glass fiber reinforced plastic antenna housing (4) in the use process, and the antenna is difficult to be protected.
6. The gooseneck multi-frequency omni-directional antenna as recited in claim 5, wherein: the gooseneck sleeve (10) is arranged between the metal connecting piece (9) and the plastic sleeve (3), and two ends of the gooseneck sleeve (10) are respectively screwed with the inner walls of the metal connecting piece (9) and the plastic sleeve (3), so that the installation stability of the gooseneck sleeve (10) is ensured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322655942.0U CN220895855U (en) | 2023-09-28 | 2023-09-28 | Gooseneck multi-frequency omnidirectional antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322655942.0U CN220895855U (en) | 2023-09-28 | 2023-09-28 | Gooseneck multi-frequency omnidirectional antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220895855U true CN220895855U (en) | 2024-05-03 |
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ID=90877437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322655942.0U Active CN220895855U (en) | 2023-09-28 | 2023-09-28 | Gooseneck multi-frequency omnidirectional antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220895855U (en) |
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2023
- 2023-09-28 CN CN202322655942.0U patent/CN220895855U/en active Active
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