CN107196052A - The low elevation angle omnidirectional radiation circular polarized antenna of small size - Google Patents
The low elevation angle omnidirectional radiation circular polarized antenna of small size Download PDFInfo
- Publication number
- CN107196052A CN107196052A CN201710238175.XA CN201710238175A CN107196052A CN 107196052 A CN107196052 A CN 107196052A CN 201710238175 A CN201710238175 A CN 201710238175A CN 107196052 A CN107196052 A CN 107196052A
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- China
- Prior art keywords
- strip
- metal micro
- metal
- elevation angle
- polarized antenna
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Classifications
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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/24—Polarising devices; Polarisation filters
Abstract
The invention discloses a kind of low elevation angle omnidirectional radiation circular polarized antenna of small size, include metal floor, metal micro-strip feed structure, metal micro-strip paster and the dielectric-slab between the structure successively from the bottom to top, the dielectric-slab is provided with the plated through-hole for connecting the metal micro-strip paster and the metal micro-strip feed structure, characterized in that, the metal micro-strip paster sets fluting and gap；The metal micro-strip feed structure setting has an input port and two feed ports, and the path length of two feed ports to the input port differs 1/4 wavelength, and the wavelength is the corresponding wavelength of vacuum central frequency.Metal micro-strip paster is provided with fluting and gap, original metal micro-strip chip surface current path is cut off, getting around electric current, the path that groove edge and slot edge flow through is elongated, and equivalent to cascade circuit is introduced in antenna equivalent circuit, the design of fluting and gap can effectively reduce the size of antenna；The antenna structure is simple simultaneously, processes easy.
Description
Technical field
The present invention relates to circular polarized antenna, especially a kind of low elevation angle omnidirectional radiation circular polarized antenna of small size.
Background technology
With satellite technology communication and the development of location technology, people are increasing to circular polarized antenna demand.Due to micro-
Band circular polarized antenna has feed simple, and easy processing, the low advantage of section is often used for onboard satellite communication system.But
Traditional its radiation direction of micro-strip circular polarized antenna is all axial direction, that is, perpendicular to horizontal plane, but in high latitude
Area, such antenna pattern is unfavorable for receiving satellite-signal.Therefore needing to design has the radiation of low elevation angle omnidirectional radiation special
The circular polarized antenna of property.
An antenna disclosed in Application No. 201410767546.X patent, including horizontal polarization antenna dipole array,
Vertical polarization monopole antenna and power division network, the micro-strip dipole antenna of four horizontal polarizations centered on square substrate,
It is distributed on four edge directions of square substrate, horizonally-polarized array is connected with vertical polarized antenna by power division network.
Power division network has phase quadrature so that horizonally-polarized array combines generation circular polarization radiation with vertical polarized antenna.The invention
Antenna size is the corresponding vacuum medium wavelength of frequency centered on the λ of the λ of 0.58 λ × 0.58 × 0.25, λ.The invention realizes omnidirectional's spoke
Characteristic is penetrated, but antenna size is larger, be not suitable for onboard system etc. has the application strictly limited to antenna size.
The content of the invention
The technical problems to be solved by the invention are：For above-mentioned problem, there is provided a kind of low elevation angle of miniaturization
Omnidirectional radiation circular polarized antenna.
The technical solution adopted by the present invention is as follows：
The low elevation angle omnidirectional radiation circular polarized antenna of small size, includes metal floor, metal micro-strip feed successively from the bottom to top
Structure, metal micro-strip paster and the dielectric-slab between the structure, it is micro- that the medium substrate is provided with the connection metal
Plated through-hole with paster and the metal micro-strip feed structure, it is characterised in that the metal micro-strip paster set fluting and
Gap；The metal micro-strip feed structure setting has an input port and two feed ports, and two feed ports are described in
The path length of input port differs the corresponding wavelength of frequency centered on 1/4 wavelength, the wavelength.
Further, the metal micro-strip paster is provided with using metal micro-strip patch edges as starting point gap.
Further, the metal micro-strip paster is provided with using recess edge as starting point gap.
In summary, by adopting the above-described technical solution, the beneficial effects of the invention are as follows：Metal micro-strip paster is provided with
Fluting and gap, have cut off original metal micro-strip chip surface current path, make that electric current gets around groove edge and slot edge flows through
Path it is elongated, equivalent to cascade circuit is introduced in antenna equivalent circuit, fluting and the design in gap can effectively reduce day
The size of line；The antenna structure is simple simultaneously, processes easy.
Brief description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is the side view of circular polarized antenna provided in an embodiment of the present invention.
Wherein 1- metal micro-strips paster, 2- dielectric-slabs (1), 3- metal micro-strip feeds structure, 4- dielectric-slabs (2), 5- metals
Floor
Fig. 2 is metal micro-strip paster schematic diagram provided in an embodiment of the present invention.
Wherein, 6- flutings, gaps of the 7- using metal micro-strip patch edges as starting point, 8- are using edge of slotting as the gap of starting point
Fig. 3 is metal micro-strip feed structural representation provided in an embodiment of the present invention.
Wherein, 9- input ports, 10- feed ports
Embodiment
All features disclosed in this specification, or disclosed all methods or during the step of, except mutually exclusive
Feature and/or step beyond, can combine in any way.
Any feature disclosed in this specification, unless specifically stated otherwise, can be equivalent by other or with similar purpose
Alternative features are replaced.I.e., unless specifically stated otherwise, each feature is an example in a series of equivalent or similar characteristics
.
Fig. 1 is the side view of circular polarized antenna provided in an embodiment of the present invention, as shown in figure 1, the low elevation angle omnidirectional of small size
Circular polarized antenna is radiated, includes metal floor 5, metal micro-strip feed structure 3, metal micro-strip paster 1 and position successively from the bottom to top
Dielectric-slab 4 and dielectric-slab 2 between the structure, the dielectric-slab 2 and dielectric-slab 4 are provided with the connection metal micro-strip patch
The plated through-hole of piece 1 and the metal micro-strip feed structure 3, it is characterised in that the metal micro-strip paster 1 sets fluting and stitched
Gap；The metal micro-strip feed structure 3 is provided with an input port and two feed ports, and two feed ports are to described defeated
The path length of inbound port differs the corresponding wavelength of frequency centered on 1/4 wavelength, the wavelength.
The antenna uses microstrip antenna form so that antenna has very low section height.
Fig. 2 is metal micro-strip paster schematic diagram provided in an embodiment of the present invention, as shown in Fig. 2 the metal micro-strip paster 1
Be provided with using the edge of metal micro-strip paster 1 be starting point gap 7 and using slot 6 edges as the gap 8 of starting point, with the metal micro-strip
The edge of paster 1 for starting point center of circle Central Symmetry of the gap 7 on the metal micro-strip paster 1, using 6 edges of the fluting for
Center of circle Central Symmetry of the gap 8 of point on the metal micro-strip paster 1.Optimally, the fluting 6 is rounded groove.Fluting
Original metal micro-strip chip surface current path has been cut off in design with gap, makes that electric current gets around groove edge and slot edge flows through
Path it is elongated, equivalent to cascade circuit is introduced in antenna equivalent circuit, fluting and the design in gap can effectively reduce day
The size of line.
Fig. 3 is metal micro-strip feed structural representation provided in an embodiment of the present invention, as shown in figure 3, metal feed structure 3
For one-to-two etc. point power splitter, the feed port divides the power of the input signal of input port 9 equally, by input port
9 are divided into two 100 ohm microstrip branch roads through one section of 50 ohm microstrip, and the feed port 10 arrives the path of input port 9
Length differs 1/4 wavelength, and the wavelength is the corresponding wavelength of vacuum central frequency, and this kind design can ensure that two feed ports are defeated
The signal gone out has 90 ° of phase differences, and when two feed ports for having 90 ° of phase differences are that microstrip antenna is fed, antenna can be achieved
Circular polarisation.When the path length a quarter of input port is arrived in the path of the right feed port to input port than left side feed port
During wavelength, antenna produces left-hand circular polarization ripple；When left side feed port to input port path than the right feed port to defeated
During the path length quarter-wave of inbound port, antenna produces right-handed circular polarization ripple.
The principle of inventive antenna formation horizontal omnidirectional radiation：The resonant frequency of Circular Microstrip Antennas can be expressed as
Wherein C represents the light velocity, εrRepresent relative dielectric constant, aeThe effective radius of circular patch is represented, Xmn is represented the m times
Zero Bessel function, n represents angular mode, and m represents radiation mode.
Far zone field of the Circular Microstrip Antennas in spherical coordinates is expressed as
Eθn(φ, θ)=jncosnφ[Jn+1(K0αsinθ)-Jn-1(K0αsinθ)]
Eφn(φ, θ)=jncosθsinnφ[Jn+1(K0αsinθ)+Jn-1(K0αsinθ)]
It was found from expression formula, TM21The greatest irradiation direction of mould meets the low elevation angle characteristic of our needs, is near 45 °
Excitation TM21 patterns, by the size of angle of the summit Jing Guo the feed port of the metal micro-strip feed structure center of circle be
135°。
Optimally, the end of described two microstrip line branch roads is connected by plated through-hole with the metal micro-strip paster, i.e.,
The feed port is arranged at the plated through-hole of the metal micro-strip feed structure.
The invention is not limited in foregoing embodiment.The present invention, which is expanded to, any in this manual to be disclosed
New feature or any new combination, and disclose any new method or process the step of or any new combination.
Claims (8)
1. the low elevation angle omnidirectional radiation circular polarized antenna of small size, includes metal floor, metal micro-strip feed knot successively from the bottom to top
Structure, metal micro-strip paster and the dielectric-slab between the structure, the dielectric-slab are provided with the connection metal micro-strip patch
The plated through-hole of piece and the metal micro-strip feed structure, it is characterised in that the metal micro-strip paster sets fluting and gap；
The metal micro-strip feed structure setting has an input port and two feed ports, two feed ports to the input
The path length of mouth differs the corresponding wavelength of frequency centered on 1/4 wavelength, the wavelength.
2. the low elevation angle omnidirectional radiation circular polarized antenna of small size according to claim 1, it is characterised in that the metal is micro-
Band paster is provided with using metal micro-strip patch edges as starting point gap.
3. the low elevation angle omnidirectional radiation circular polarized antenna of small size according to claim 1, it is characterised in that the metal is micro-
Band paster is provided with using recess edge as starting point gap.
4. the low elevation angle omnidirectional radiation circular polarized antenna of small size according to claim 2, it is characterised in that with the metal
Microband paste edge is center of circle Central Symmetry of the gap of starting point on the metal micro-strip paster.
5. the low elevation angle omnidirectional radiation circular polarized antenna of small size according to claim 3, it is characterised in that with the fluting
Edge is center of circle Central Symmetry of the gap of starting point on the metal micro-strip paster.
6. the low elevation angle omnidirectional radiation circular polarized antenna of small size according to claim 1, it is characterised in that the fluting is
Rounded groove.
7. the low elevation angle omnidirectional radiation circular polarized antenna of small size according to claim 1, it is characterised in that the feed end
Mouth divides the power of the input port input signal equally.
8. the low elevation angle omnidirectional radiation circular polarized antenna of small size according to claim 1, it is characterised in that with the metal
The microstrip feed structures center of circle is that the size of angle of the summit Jing Guo the feed port is 135 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710238175.XA CN107196052A (en) | 2017-04-13 | 2017-04-13 | The low elevation angle omnidirectional radiation circular polarized antenna of small size |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710238175.XA CN107196052A (en) | 2017-04-13 | 2017-04-13 | The low elevation angle omnidirectional radiation circular polarized antenna of small size |
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| Publication Number | Publication Date |
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| CN107196052A true CN107196052A (en) | 2017-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710238175.XA Pending CN107196052A (en) | 2017-04-13 | 2017-04-13 | The low elevation angle omnidirectional radiation circular polarized antenna of small size |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108428997A (en) * | 2018-01-17 | 2018-08-21 | 深圳市华信天线技术有限公司 | Broadband plane antenna |
| CN115663455A (en) * | 2022-10-09 | 2023-01-31 | 荣耀终端有限公司 | Terminal antenna and electronic equipment |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101065882A (en) * | 2004-09-24 | 2007-10-31 | 贾斯特有限公司 | Planar antenna for mobile satellite applications |
| CN101752664A (en) * | 2010-01-15 | 2010-06-23 | 华南理工大学 | Annular circular polarization ceramic antenna based on quadrature coupling feed |
| CN102570016A (en) * | 2011-12-14 | 2012-07-11 | 安徽锦特微波电子有限公司 | Miniaturized double-frequency circular-polarization metamaterial microstrip antenna |
| CN103311653A (en) * | 2013-05-20 | 2013-09-18 | 华南理工大学 | Small high-isolation and wide-band antenna adopting differential feed and multilayer patch structures |
| CN103956584A (en) * | 2014-04-29 | 2014-07-30 | 陕西海通天线有限责任公司 | Handheld dual-mode miniaturized user machine antenna |
| CN104362426A (en) * | 2014-11-05 | 2015-02-18 | 上海大学 | Broadband UHF (ultra-high frequency) RFID (radio frequency identification) reader antenna |
| CN105322289A (en) * | 2015-11-25 | 2016-02-10 | 电子科技大学 | Novel RFID circularly polarized antenna |
| CN205303671U (en) * | 2015-12-02 | 2016-06-08 | 成都南骄科技有限公司 | Individual layer coupling feed double polarization microstrip array antenna |
-
2017
- 2017-04-13 CN CN201710238175.XA patent/CN107196052A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101065882A (en) * | 2004-09-24 | 2007-10-31 | 贾斯特有限公司 | Planar antenna for mobile satellite applications |
| CN101752664A (en) * | 2010-01-15 | 2010-06-23 | 华南理工大学 | Annular circular polarization ceramic antenna based on quadrature coupling feed |
| CN102570016A (en) * | 2011-12-14 | 2012-07-11 | 安徽锦特微波电子有限公司 | Miniaturized double-frequency circular-polarization metamaterial microstrip antenna |
| CN103311653A (en) * | 2013-05-20 | 2013-09-18 | 华南理工大学 | Small high-isolation and wide-band antenna adopting differential feed and multilayer patch structures |
| CN103956584A (en) * | 2014-04-29 | 2014-07-30 | 陕西海通天线有限责任公司 | Handheld dual-mode miniaturized user machine antenna |
| CN104362426A (en) * | 2014-11-05 | 2015-02-18 | 上海大学 | Broadband UHF (ultra-high frequency) RFID (radio frequency identification) reader antenna |
| CN105322289A (en) * | 2015-11-25 | 2016-02-10 | 电子科技大学 | Novel RFID circularly polarized antenna |
| CN205303671U (en) * | 2015-12-02 | 2016-06-08 | 成都南骄科技有限公司 | Individual layer coupling feed double polarization microstrip array antenna |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108428997A (en) * | 2018-01-17 | 2018-08-21 | 深圳市华信天线技术有限公司 | Broadband plane antenna |
| CN115663455A (en) * | 2022-10-09 | 2023-01-31 | 荣耀终端有限公司 | Terminal antenna and electronic equipment |
| CN115663455B (en) * | 2022-10-09 | 2024-03-29 | 荣耀终端有限公司 | Terminal antenna and electronic equipment |
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Application publication date: 20170922 |