CN210692766U - Ultrashort wave multiband composite omnidirectional antenna - Google Patents
Ultrashort wave multiband composite omnidirectional antenna Download PDFInfo
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- CN210692766U CN210692766U CN201921466693.8U CN201921466693U CN210692766U CN 210692766 U CN210692766 U CN 210692766U CN 201921466693 U CN201921466693 U CN 201921466693U CN 210692766 U CN210692766 U CN 210692766U
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Abstract
The utility model relates to the technical field of antennas, in particular to an ultrashort wave multiband composite omnidirectional antenna, which adopts a dual-port realization mode by arranging a low-frequency band ultrashort wave antenna and a high-frequency band ultrashort wave antenna, and the antennas are connected in series and placed up and down, thereby ensuring the omnidirectional characteristics of low-frequency band directional diagrams and high-frequency band directional diagrams, avoiding the directional diagrams from generating deformity when feeding respectively, and realizing the composition of a plurality of frequency band antennas; the elliptical disc is loaded at the top end of the low-frequency band monopole radiator, so that the miniaturization of the low-frequency band antenna is realized, the low-frequency band monopole radiator can also be used as a reference ground of a high-frequency band ultrashort wave antenna, and the structural design is ingenious; and the structure of the open sleeve can expand the working frequency band of the antenna, greatly reduce the profile of the antenna, and can also adopt the printed board processing technology to manufacture the antenna, thereby reducing the production cost.
Description
Technical Field
The utility model relates to the technical field of antennas, especially, relate to a compound omnidirectional antenna of ultrashort wave multiband.
Background
With the development of communication technology, the requirements on communication capacity are higher and higher due to the continuous upgrade of electronic equipment, more and more system equipment meeting different requirements are concentrated on a single carrier, a more and more complex electromagnetic environment is formed, and meanwhile, antennas of different systems have stronger coupling and influence the performances of the respective systems mutually. In a civil communication system, channel capacity is continuously expanded, transmission rate is continuously increased, service modes are increasingly flexible, communication equipment is increasingly broadband, and station facilities are also developed from initial point-to-point and point-to-multipoint to mobile and global roaming. In the military field, in order to realize secret communication and eliminate interference, multiband, multifunctional radio stations and broadband frequency hopping radio stations are widely applied, a plurality of pairs of antennas are densely distributed in a narrow space, the mutual interference is serious, and the communication quality is influenced.
In order to solve the above-mentioned contradiction, it is effective to develop a high-performance, wide/multi-band, and miniaturized antenna to reduce the number of antennas on a carrier. While reducing the number of antennas reduces the air resistance, broadband/multiband antennas show significant advantages in this respect. Therefore, how to design an ultrashort wave composite omnidirectional antenna with multiband, omnidirectional and compact structure becomes a research direction for those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of the existing problems, the utility model discloses an ultrashort wave multiband composite omnidirectional antenna, which comprises a high-frequency band monopole radiator, a loading elliptical disc and a low-frequency band monopole radiator which are sequentially arranged from top to bottom;
the lower part of the high-frequency band monopole radiator is arranged in a high-frequency open sleeve, the bottom of the high-frequency open sleeve is connected with the loading elliptical disk, and two sides of the low-frequency band monopole radiator are arranged in a low-frequency open sleeve;
the loading elliptical disk, the low-frequency band monopole radiator and the low-frequency open sleeve form a low-frequency band ultra-short wave antenna, and the high-frequency band monopole radiator, the high-frequency open sleeve and the loading elliptical disk form a high-frequency band ultra-short wave antenna.
The ultrashort wave multiband composite omnidirectional antenna further comprises a printed board;
the printed board comprises a first surface and a second surface opposite to the first surface, the high-frequency band monopole radiator, the high-frequency open sleeve and the low-frequency band monopole radiator are printed on the first surface of the printed board, the low-frequency open sleeve is printed on the second surface of the printed board, and the loading elliptical disc is perpendicular to the printed board.
In the ultrashort wave multiband composite omnidirectional antenna, the low-band monopole radiator is rectangular, and straight chamfers are formed on two sides of the bottom of the low-band monopole radiator.
In the ultrashort wave multiband composite omnidirectional antenna, the low-band monopole radiator is provided with an excitation port at the center of the bottom, and 2 slots are formed on two sides of the excitation port of the low-band monopole radiator.
In the ultrashort wave multiband composite omnidirectional antenna, the gap is rectangular.
In the ultrashort wave multiband composite omnidirectional antenna, the high-band monopole radiator is in an inverted trapezoid shape.
The ultrashort wave multiband composite omnidirectional antenna is characterized in that the feed port of the high-band ultrashort wave antenna is located in the center of the bottom of the high-band single-machine sub-radiator.
The ultrashort wave multiband composite omnidirectional antenna is characterized in that the short axis of the loading elliptical disk is perpendicular to the low-band monopole radiator.
The ultrashort wave multiband composite omnidirectional antenna is characterized in that two sides of the bottom of the low-frequency open sleeve are connected together, and the low-frequency open sleeve is used as a reference ground of the low-frequency band ultrashort wave antenna.
The ultrashort wave multiband composite omnidirectional antenna is characterized in that the loading elliptical disk is used as a reference ground of the high-frequency band ultrashort wave antenna.
Above-mentioned utility model has following advantage or beneficial effect:
1. through setting up low-band ultrashort wave antenna and high-band ultrashort wave antenna and adopting the dual-port implementation mode, establish ties, place from top to bottom, guarantee the omnidirectional characteristic of low-band and high-band directional diagram, the directional diagram produces the deformity when avoiding feeding separately, realizes the complex of a plurality of antennas.
2. The loading elliptical disk is arranged at the top end of the low-frequency band monopole radiator, so that the miniaturization of the low-frequency band antenna is realized, the low-frequency band monopole radiator can be used as a reference ground of the high-frequency band ultrashort wave antenna, and the structure is ingenious.
3. Through adopting open telescopic structure, can increase the operating frequency band of antenna, colleague greatly reduced the antenna section, adopt printing board processing technology preparation antenna, processing low cost.
Drawings
The invention and its features, aspects and advantages will become more apparent from a reading of the following detailed description of non-limiting embodiments with reference to the attached drawings. Like reference symbols in the various drawings indicate like elements. The drawings are not necessarily to scale, emphasis instead being placed upon illustrating the principles of the invention.
Fig. 1 is a front view of an ultra-short wave multiband composite omnidirectional antenna according to an embodiment of the present invention;
figure 2 is a rear view of an ultra-short wave multi-band composite omni directional antenna according to an embodiment of the present invention;
figure 3 is a side view of an ultra-short wave multi-band composite omni directional antenna according to an embodiment of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which should not be construed as limiting the invention.
As shown in fig. 1 to 3, the present embodiment relates to an ultrashort wave multiband composite omnidirectional antenna, and in particular, the ultrashort wave multiband composite omnidirectional antenna comprises a printed board 10 and a high-frequency band monopole radiator 6, a loading elliptical disk 2 and a low-frequency band monopole radiator 4 which are sequentially arranged from top to bottom; the lower part of the high-frequency band monopole radiator 6 is arranged in a high-frequency open sleeve 7, the bottom of the high-frequency open sleeve 7 is connected with the loading elliptical disk 2, and the lower part of the low-frequency band monopole radiator 4 is arranged in a low-frequency open sleeve 5; the loading elliptical disk 2, the low-frequency band monopole radiator 4 and the low-frequency open sleeve 5 form a low-frequency band ultrashort wave antenna 1, the high-frequency band monopole radiator 6, the high-frequency open sleeve 7 and the loading elliptical disk 2 form a high-frequency band ultrashort wave antenna 3, namely the low-frequency band ultrashort wave antenna 1 and the high-frequency band ultrashort wave antenna 3 share one loading elliptical disk 2 (the loading elliptical disk 2 is positioned at the top end of the low-frequency monopole radiator 4 and at the bottom of the high-frequency band ultrashort wave antenna 3 and connected with the high-frequency open sleeve 7), and the low-frequency band ultrashort wave antenna 1 and the high-frequency band ultrashort wave antenna 3 are structurally connected in series and are placed up and down; the printed board 10 includes a first surface and a second surface opposite to the first surface, the high-frequency band monopole radiator 6, the high-frequency open sleeve 7 and the low-frequency band monopole radiator 4 are printed on the first surface of the printed board 10, the low-frequency open sleeve 5 is printed on the second surface of the printed board 10, and the loading elliptical disk 2 is perpendicular to the printed board 10.
In a preferred embodiment of the present invention, the low-band monopole radiator 4 is rectangular, and both sides of the bottom of the low-band monopole radiator 4 are processed by right angle cutting to form a straight chamfer, the low-band monopole radiator 4 is provided with an excitation port 8 at the bottom center position (i.e. the low-band monopole radiator 4 feeds at the bottom center position), and the low-band monopole radiator 4 is provided with 2 slots at both sides of the excitation port 8 to perform impedance matching of the low band (port impedance is 50 Ω), thereby realizing a wider working bandwidth; preferably, the 2 slits are all rectangular.
In a preferred embodiment of the present invention, the high-band monopole radiator 6 is in an inverted trapezoid shape, the feed port 9 of the high-band ultra-short wave antenna 3 is located at the bottom center of the high-band monopole radiator 6, and the feed port 9 is a position where the high-band ultra-short wave antenna 3 is connected to a radio frequency cable.
In a preferred embodiment of the invention, the minor axis of the loading elliptical disk 2 is perpendicular to the low-band monopole radiator 4.
In a preferred embodiment of the present invention, the two sides of the bottom of the low frequency open sleeve 5 are connected together, and the low frequency open sleeve 5 is used as a reference ground of the low frequency band ultrashort wave antenna 1.
In a preferred embodiment of the present invention, the loading elliptical disk 2 serves as a reference ground for the high-band ultrashort-wave antenna 3.
In a specific embodiment of the present invention, please continue to refer to fig. 1-3, the ultrashort wave multiband composite antenna has an axisymmetric structure, and mainly includes a low-band ultrashort wave antenna 1 and a high-band ultrashort wave antenna 3. The low-frequency band ultrashort wave antenna 1 works in a UHF frequency band and sequentially comprises a loading elliptical disk 2, a low-frequency monopole radiator 4 and a low-frequency open sleeve 5 from top to bottom; the low-frequency open type sleeves 5 are mutually connected together and used as a reference ground of the low-frequency monopole radiator 4 to expand the working bandwidth of UHF frequency band and realize the multi-frequency work of low wave band; two ends of the bottom of the low-frequency monopole radiator 4 are subjected to right angle cutting treatment, and two rectangular gaps are formed in two sides of the excitation port 8 and are used for matching the working bandwidth in the working frequency band; then, a loading elliptical disk 2 is arranged at the top of the low-frequency monopole radiator 4 and used for reducing the height of the low-frequency band ultrashort wave antenna 1, further reducing the overall height of the whole composite antenna and realizing the miniaturization of the composite antenna; the high-frequency band monopole antenna is arranged on the loading elliptical disk 2, so that the L-frequency band work and the omnidirectional radiation characteristic of the low-frequency band monopole antenna per se in the horizontal direction are realized, meanwhile, the electromagnetic field distribution of the low-frequency band ultrashort wave antenna 1 in the space is avoided from being interfered, and the omnidirectional radiation characteristic of the low-frequency band ultrashort wave antenna is ensured. Similarly, the high-frequency band ultrashort wave antenna 3 also adopts a structure that a high-frequency monopole radiator 6 and a high-frequency open sleeve 7 are added, so as to expand the working bandwidth of a high-frequency band.
In addition, the parameters of the simulation design of the ultrashort wave multiband composite antenna are respectively as follows: adopt FR4 dielectric slab as printed board 10, the dielectric slab height is 485mm, the width is 270mm, thickness is 1mm, low band monopole radiator 4 height is 391mm, the width is 122mm, the height of low frequency open sleeve 5 is 163mm, the width is 25mm, loading elliptical disk 2 major axis length is 132mm, minor axis length is 6mm, high frequency band monopole radiator 6 upper base width is 46mm, the lower base width is 23mm, the height is 47mm, high frequency open sleeve 7 width is 22mm, the height is 16 mm.
To sum up, the utility model discloses an ultrashort wave multiband composite omnidirectional antenna, which adopts a dual-port implementation mode by arranging a low-frequency band ultrashort wave antenna and a high-frequency band ultrashort wave antenna, and the antennas are connected in series and placed up and down, so that the omnidirectional characteristics of low-frequency band directional diagrams and high-frequency band directional diagrams are ensured, the directional diagrams are prevented from generating deformity when feeding respectively, and the composition of a plurality of frequency band antennas is realized; the elliptical disc is loaded at the top end of the low-frequency band monopole radiator, so that the miniaturization of the low-frequency band antenna is realized, the low-frequency band monopole radiator can also be used as a reference ground of a high-frequency band ultrashort wave antenna, and the structural design is ingenious; and the structure of the open sleeve can expand the working frequency band of the antenna, greatly reduce the profile of the antenna, and can also adopt the printed board processing technology to manufacture the antenna, thereby reducing the production cost.
The above description is directed to the preferred embodiment of the present invention. It is to be understood that the invention is not limited to the particular embodiments described above, and that devices and structures not described in detail are understood to be implemented in a manner common in the art; without departing from the scope of the invention, it is intended that the present invention shall not be limited to the above-described embodiments, but that the present invention shall include all the modifications and variations of the embodiments. Therefore, any simple modification, equivalent change and modification made to the above embodiments by the technical entity of the present invention all still fall within the protection scope of the technical solution of the present invention, where the technical entity does not depart from the content of the technical solution of the present invention.
Claims (10)
1. An ultrashort wave multiband composite omnidirectional antenna is characterized by comprising a high-frequency band monopole radiator, a loading elliptical disc and a low-frequency band monopole radiator which are sequentially arranged from top to bottom;
the lower part of the high-frequency band monopole radiator is arranged in a high-frequency open sleeve, the bottom of the high-frequency open sleeve is connected with the loading elliptical disk, and two sides of the low-frequency band monopole radiator are arranged in a low-frequency open sleeve;
the loading elliptical disk, the low-frequency band monopole radiator and the low-frequency open sleeve form a low-frequency band ultra-short wave antenna, and the high-frequency band monopole radiator, the high-frequency open sleeve and the loading elliptical disk form a high-frequency band ultra-short wave antenna.
2. The ultrashort wave multiband composite omnidirectional antenna of claim 1, further comprising a printed board;
the printed board comprises a first surface and a second surface opposite to the first surface, the high-frequency band monopole radiator, the high-frequency open sleeve and the low-frequency band monopole radiator are printed on the first surface of the printed board, the low-frequency open sleeve is printed on the second surface of the printed board, and the loading elliptical disc is perpendicular to the printed board.
3. The ultrashort wave multiband composite omnidirectional antenna of claim 1, wherein the low-band monopole radiator is rectangular in shape and straight chamfers are formed at both sides of the bottom of the low-band monopole radiator.
4. The ultrashort wave multiband composite omnidirectional antenna of claim 1, wherein the low-band monopole radiator is provided with an excitation port at a bottom center position, and the low-band monopole radiator is provided with 2 slots at both sides of the excitation port.
5. The ultrashort wave multiband composite omnidirectional antenna of claim 4, wherein the slot is rectangular.
6. The ultrashort wave multiband composite omnidirectional antenna of claim 1, wherein the high band monopole radiator has an inverted trapezoid shape.
7. The ultrashort wave multiband composite omnidirectional antenna of claim 1, wherein the feed port of the high band ultrashort wave antenna is located at the bottom center of the high band single-machine sub-radiator.
8. The ultrashort wave multiband composite omnidirectional antenna of claim 1, wherein a minor axis of the loaded elliptical disk is perpendicular to the low-band monopole radiator.
9. The ultrashort wave multiband composite omnidirectional antenna of claim 1, wherein two sides of the bottom of the low frequency open sleeve are connected together, and the low frequency open sleeve serves as a reference ground of the low frequency band ultrashort wave antenna.
10. The ultrashort wave multiband composite omnidirectional antenna of claim 1, wherein the loaded elliptical disk serves as a reference ground for the high band ultrashort wave antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921466693.8U CN210692766U (en) | 2019-09-05 | 2019-09-05 | Ultrashort wave multiband composite omnidirectional antenna |
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| CN201921466693.8U CN210692766U (en) | 2019-09-05 | 2019-09-05 | Ultrashort wave multiband composite omnidirectional antenna |
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| CN210692766U true CN210692766U (en) | 2020-06-05 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111755821A (en) * | 2020-07-15 | 2020-10-09 | 上海海积信息科技股份有限公司 | Integrated antenna |
| CN113571912A (en) * | 2021-06-21 | 2021-10-29 | 西安电子科技大学 | Airborne ultrashort wave antenna |
| CN114883795A (en) * | 2022-05-31 | 2022-08-09 | 上海海积信息科技股份有限公司 | Antenna |
-
2019
- 2019-09-05 CN CN201921466693.8U patent/CN210692766U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111755821A (en) * | 2020-07-15 | 2020-10-09 | 上海海积信息科技股份有限公司 | Integrated antenna |
| CN113571912A (en) * | 2021-06-21 | 2021-10-29 | 西安电子科技大学 | Airborne ultrashort wave antenna |
| CN113571912B (en) * | 2021-06-21 | 2022-07-12 | 西安电子科技大学 | Airborne ultrashort wave antenna |
| CN114883795A (en) * | 2022-05-31 | 2022-08-09 | 上海海积信息科技股份有限公司 | Antenna |
| WO2023231190A1 (en) * | 2022-05-31 | 2023-12-07 | 上海海积信息科技股份有限公司 | Antenna |
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