CN111048900B - VHF frequency band vertical polarization antenna based on multi-chip SSPP structure - Google Patents
VHF frequency band vertical polarization antenna based on multi-chip SSPP structure Download PDFInfo
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- CN111048900B CN111048900B CN201911274062.0A CN201911274062A CN111048900B CN 111048900 B CN111048900 B CN 111048900B CN 201911274062 A CN201911274062 A CN 201911274062A CN 111048900 B CN111048900 B CN 111048900B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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Abstract
The invention provides a VHF frequency band vertical polarization antenna based on a multi-chip SSPP structure, which comprises: the device comprises a semicircular gap matching structure 1, an N-type connector 2, a gap transmission structure 3 and a plurality of SSPP radiation structures 4; semicircle type gap matching structure 1 links to each other with gap transmission structure 3 and is the L shape, semicircle type gap has been seted up to semicircle type gap matching structure 1's lower part, N type connector 2 set up in semicircle type gap with between the gap transmission structure 3, multi-disc SSPP radiation structure 4 set up in the upside of gap transmission structure 3. The invention solves the problems of low profile and broadband in the application of the conventional VHF section vertical polarization antenna.
Description
Technical Field
The invention relates to the field of antennas, in particular to a miniaturized VHF (very High frequency) frequency band ultralow-section vertical polarization antenna based on a multi-piece artificial Surface Plasmon Polariton (SSPP) structure.
Background
The continuous progress of scientific technology and the increasing demand of society in various aspects push the rapid development of wireless communication technology, and antennas as important components in wireless communication systems are receiving more attention. Communication equipment is also indispensable on various carriers such as satellites, automobiles, ships and the like, and the requirements on antennas are more and more strict. Miniaturization and low profile of the antenna are inevitable trends in development on the basis of ensuring the performance of the antenna. Meanwhile, in some specific application scenarios, the section height limit far smaller than the working wavelength is given, so that the ultra-low section vertical polarization antenna needs to be researched.
The most common vertical polarization antenna is a monopole antenna standing upright, such as the monopole antenna disclosed in patent document CN103746189B, which is disposed on a substrate or independently disposed, and includes: a radiating surface having parallel opposing first and second sides, a cathetus coupled perpendicularly between first ends of the first and second sides, and a fourth side coupled between second ends of the first and second sides; a frequency lead that changes a current distribution of the radiation surface to widen a frequency; and the grounding part is opposite to the right-angle side of the radiation surface, and two ends of the grounding part are coupled with the frequency lead.
However, the cross-sectional height of such an antenna is generally 1/4 wavelength of operating frequency, the size is large at low frequency, some vertical polarization antennas commonly used at present are basically designed by utilizing the deformation of such an antenna, the overall cross-section of the antenna is reduced by top loading or folding the antenna to improve the technology of an inverted-F antenna, an inverted-F antenna and the like, but the cross-sectional height of the antenna can be reduced to only one tenth of the wavelength, when the limitation of the cross-sectional height is reduced to one hundredth or below the wavelength, the traditional antenna form cannot be effective, and a novel vertical polarization antenna with an ultra-low cross-section needs to be researched.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a vertical polarization antenna of a VHF frequency band based on a multi-chip SSPP structure.
According to the invention, the vertical polarization antenna of the VHF frequency band based on the multi-chip SSPP structure comprises: the device comprises a semicircular gap matching structure 1, an N-type connector 2, a gap transmission structure 3 and a plurality of SSPP radiation structures 4;
semicircle type gap matching structure 1 links to each other with gap transmission structure 3 and is the L shape, semicircle type gap has been seted up to semicircle type gap matching structure 1's lower part, N type connector 2 set up in semicircle type gap with between the gap transmission structure 3, multi-disc SSPP radiation structure 4 set up in the upside of gap transmission structure 3.
Preferably, the plurality of SSPP radiating structures 4 and the slot transmitting structure 3 have a longitudinal cut, and both sides of the cut are connected by a loading resistor 5.
Preferably, the plurality of SSPP radiating structures 4 are parallel to each other and vertically installed on the upper side of the slot transfer structure 3.
Preferably, the plurality of SSPP radiating structures 4 are mounted on the upper side of the slot transfer structure 3 by means of a horizontal mounting plate.
Preferably, the vertically polarized antenna is fed in a back feed manner through the N-type connector 2.
Preferably, the gap transmission structure 3 and the plurality of SSPP radiation structures 4 are made of metal.
Preferably, the inner conductor of the N-type connector 2 is connected to the upper edge of the junction of the semicircular gap and the gap transmission structure 3 in an extending manner.
Preferably, the semicircular gap matching structure 1 is in contact with the floor, and the gap transmission structure 3 is suspended.
Preferably, the vertically polarized antenna is left-right symmetric.
Preferably, the length direction of the plurality of SSPP radiating structures 4 is perpendicular to the length direction of the slot transmission structure 3.
Compared with the prior art, the invention has the following beneficial effects:
the invention can effectively reduce the working wavelength of the antenna by combining the wavelength shortening effect of the SPP theory, thereby realizing the purpose of miniaturization.
The invention effectively increases the current length of the antenna by adopting a multi-piece comb-shaped SSPP structure so as to achieve the aim of miniaturization.
The invention adopts regular metal plates to be cut, assembled and formed, and the materials are convenient to be processed;
the invention can realize vertical polarization radiation under the section height of 0.017 wavelength;
the invention realizes the relative bandwidth of 13% under the VHF frequency band under the ultra-low section height through the loading resistor.
The antenna of the invention has regular and symmetrical shape, and the working frequency is completely determined by the size of the antenna, so the working frequency band of the antenna can be easily changed at will within the allowable range of the processing technology.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a side view of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a return loss plot of the present invention;
FIG. 4 is an E-plane radiation pattern of the present invention operating at a frequency of 87 MHz;
fig. 5 is an H-plane radiation pattern of the present invention operating at the 87MHz frequency point.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that it would be obvious to those skilled in the art that various changes and modifications can be made without departing from the spirit of the invention. All falling within the scope of the present invention.
As shown in fig. 1 and fig. 2, the present invention provides a VHF band vertical polarization antenna based on a multi-chip SSPP structure, including: the device comprises a semicircular gap matching structure 1, an N-type connector 2, a gap transmission structure 3, a loading resistor 5 and a multi-chip SSPP radiation structure 4. The wavelength shortening effect under the SSPP theory is applied, the working wavelength of the antenna is effectively reduced, and the miniaturization of the antenna is achieved. The multiple SSPP radiation structures 4 can increase the vertical current component in the SSPP mode, improve the far-field vertical polarization gain, and increase the current path to realize miniaturization.
Semicircle type gap matching structure 1 links to each other with gap transmission structure 3 and is L shape, and semicircle type gap has been seted up to semicircle type gap matching structure 1's lower part, and N type connector 2 sets up between semicircle type gap and gap transmission structure 3, and multi-disc SSPP radiation structure 4 sets up in the upside of gap transmission structure 3. The semicircular gap matching structure 1 is in contact with the floor, the gap transmission structure 3 is suspended, input impedance can be adjusted by adjusting the radius of the semicircular gap, and impedance matching characteristics are improved. The N-type connector 2 is used for feeding the vertical polarization antenna in a back feeding mode, and the inner conductor of the N-type connector 2 is connected to the upper edge of the junction of the semicircular gap and the gap transmission structure 3 in an extending mode. Adjusting the feed point position can adjust the operating frequency and input impedance of the antenna.
The plurality of SSPP radiating structures 4 are parallel to each other and are vertically arranged on the upper side of the gap transmission structure 3 through a horizontal mounting plate. The multi-chip SSPP structure is parallelly installed on a horizontal base for installing the multi-chip SSPP structure, vertical current components can be effectively increased, a current path can be effectively extended, and the working frequency can be reduced to achieve miniaturization by adjusting the number of the SSPP chips and the distance between the multi-chip SSPP structure. Specifically, the length direction of the plurality of SSPP radiating structures 4 is perpendicular to the length direction of the slot transmission structure 3. The vertical current component in the SSPP mode can be increased, the vertical polarization gain of a far field is improved, and meanwhile, the current path is increased to achieve miniaturization. The gap transmission structure 3, the horizontal mounting plate and the plurality of SSPP radiation structures 4 are all made of metal materials and are convenient to process.
The plurality of SSPP radiating structures 4 and the gap transmission structure 3 are provided with a longitudinal notch, and two sides of the notch are connected through a loading resistor 5. Adjusting the notch position and the resistance of the loading resistor can adjust the input impedance and the bandwidth.
The vertical polarization antenna is bilaterally symmetrical, and the working frequency is determined by the size of the antenna, the resistance value and the position of the loading resistor.
FIG. 3 is a return loss chart of the present embodiment, and it can be seen that the return loss is substantially less than-10 dB within 81.6-95.2, and the relative bandwidth is 15.6%.
Fig. 4 shows the E-plane pattern of this embodiment operating at 87MHz, which is seen to have an end-fire effect.
Fig. 5 shows the H-plane pattern of this embodiment operating at 87MHz, which shows that it has a certain end-fire effect.
In the description of the present application, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (6)
1. A VHF frequency band vertical polarization antenna based on a multi-chip SSPP structure is characterized by comprising: the device comprises a semicircular gap matching structure (1), an N-type connector (2), a gap transmission structure (3) and a multi-piece SSPP radiation structure (4);
the semicircular gap matching structure (1) is connected with the gap transmission structure (3) to form an L shape, a semicircular gap is formed in the lower portion of the semicircular gap matching structure (1), the N-type connector (2) is arranged between the semicircular gap and the gap transmission structure (3), and the plurality of SSPP radiation structures (4) are arranged on the upper side of the gap transmission structure (3);
the plurality of SSPP radiation structures (4) are parallel to each other and are vertically arranged on the upper side of the gap transmission structure (3);
the plurality of SSPP radiation structures (4) are arranged on the upper side of the gap transmission structure (3) through a horizontal mounting plate;
the gap transmission structure (3) and the plurality of SSPP radiation structures (4) are made of metal materials;
the inner conductor of the N-shaped connector (2) is connected to the upper edge of the junction of the semicircular gap and the gap transmission structure (3) in an extending mode.
2. The VHF-band vertically polarized antenna based on a multi-chip SSPP structure according to claim 1, wherein the multi-chip SSPP radiating structure (4) and the slot transmission structure (3) have a longitudinal notch, and the two sides of the notch are connected through a loading resistor (5).
3. The VHF band vertically polarized antenna based on the multi-chip SSPP architecture of claim 1, characterized in that the vertically polarized antenna is fed in a backfeed manner through the N-type connector (2).
4. The VHF band vertically polarized antenna based on the multi-chip SSPP structure according to claim 1, wherein the semicircular slot matching structure (1) is in contact with the floor, and the slot transmission structure (3) is suspended.
5. The VHF band vertically polarized antenna based on the multi-chip SSPP structure according to claim 1, wherein the vertically polarized antenna is symmetrical to the left and right.
6. The VHF-band vertically polarized antenna based on a multi-chip SSPP structure according to claim 1, wherein the length direction of the multi-chip SSPP radiating structure (4) is perpendicular to the length direction of the slot transmission structure (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911274062.0A CN111048900B (en) | 2019-12-12 | 2019-12-12 | VHF frequency band vertical polarization antenna based on multi-chip SSPP structure |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911274062.0A CN111048900B (en) | 2019-12-12 | 2019-12-12 | VHF frequency band vertical polarization antenna based on multi-chip SSPP structure |
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| CN111048900A CN111048900A (en) | 2020-04-21 |
| CN111048900B true CN111048900B (en) | 2021-09-21 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602231A (en) * | 2016-11-16 | 2017-04-26 | 中国人民解放军空军工程大学 | Quasi-surface plasmon ultra-wide band low-scattering slot antenna |
| CN107681279A (en) * | 2017-09-26 | 2018-02-09 | 中国人民解放军空军工程大学 | Areflexia backboard, heavy caliber artificial surface phasmon broadband frequency sweep plate aerial |
| CN108767451A (en) * | 2018-04-04 | 2018-11-06 | 上海交通大学 | The large-angle scanning antenna of directional diagram reconstructable based on SSPP structures |
| CN109639240A (en) * | 2018-12-20 | 2019-04-16 | 电子科技大学 | Terahertz frequency multiplier based on artificial surface phasmon |
| CN109888484A (en) * | 2019-01-30 | 2019-06-14 | 上海交通大学 | High efficiency end-on-fire antenna based on SSPPs structure |
| CN110034396A (en) * | 2019-03-29 | 2019-07-19 | 上海交通大学 | Vertical depolarized omnidirectional antenna based on artificial surface phasmon structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI232007B (en) * | 2003-09-15 | 2005-05-01 | Tatung Co Ltd | Slot antenna for dual-band operation |
| US8837036B2 (en) * | 2010-07-23 | 2014-09-16 | Pinaki Mazumder | Dynamic terahertz switch using periodic corrugated structures |
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2019
- 2019-12-12 CN CN201911274062.0A patent/CN111048900B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106602231A (en) * | 2016-11-16 | 2017-04-26 | 中国人民解放军空军工程大学 | Quasi-surface plasmon ultra-wide band low-scattering slot antenna |
| CN107681279A (en) * | 2017-09-26 | 2018-02-09 | 中国人民解放军空军工程大学 | Areflexia backboard, heavy caliber artificial surface phasmon broadband frequency sweep plate aerial |
| CN108767451A (en) * | 2018-04-04 | 2018-11-06 | 上海交通大学 | The large-angle scanning antenna of directional diagram reconstructable based on SSPP structures |
| CN109639240A (en) * | 2018-12-20 | 2019-04-16 | 电子科技大学 | Terahertz frequency multiplier based on artificial surface phasmon |
| CN109888484A (en) * | 2019-01-30 | 2019-06-14 | 上海交通大学 | High efficiency end-on-fire antenna based on SSPPs structure |
| CN110034396A (en) * | 2019-03-29 | 2019-07-19 | 上海交通大学 | Vertical depolarized omnidirectional antenna based on artificial surface phasmon structure |
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