CN209344308U - Double frequency high-gain circular polarized antenna - Google Patents
Double frequency high-gain circular polarized antenna Download PDFInfo
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- CN209344308U CN209344308U CN201920169622.5U CN201920169622U CN209344308U CN 209344308 U CN209344308 U CN 209344308U CN 201920169622 U CN201920169622 U CN 201920169622U CN 209344308 U CN209344308 U CN 209344308U
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- pcb board
- double frequency
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Abstract
The utility model discloses a kind of double frequency high-gain circular polarized antennas, it is made of the cylindrical helical antenna unit of pcb board and the left-hand/right-hand being welded on pcb board.The cylindrical helical formula antenna element is made of two groups of spiral radiating elements, every group of spiral radiating element includes four spiral arms, spaced set between spiral arm in every group of spiral radiating element, and the spiral arm in every group of spiral radiating element differs 90 ° each other.The pcb board is FR-4 backing material plate, phase shift feeding network is printed on the pcb board, which is connected with coaxial cable；The spiral arm is connected with the phase shift feeding network on pcb board respectively.The advantages of the utility model: there is high-gain, high efficiency circular polarization characteristics.
Description
Technical field
The utility model relates to a kind of 1.268GHz, 1.616GHz double frequency high-gain circular polarized antennas, belong to antenna manufacture
Technical field.
Background technique
Since circular polarized antenna has good electromagnetic property, in satellite communication, RFID (Radio Frequency Identification Technology), WLAN
(wireless network) etc. is widely used.In particular with the continuous development of the portable devices such as mobile phone, tablet computer,
Handheld device provides corresponding precision navigation positioning service and has become inevitable trend.
Therefore the circular polarized antenna for needing to design multichannel, high-gain, sends and receives signal.Such as: 1.268GHz,
1.616GHz frequency range, it is desirable that it has higher gain, preferable circular polarization characteristics and has better gain at the low elevation angle.It is existing at present
Most of some circular polarized antennas are ceramic antenna, and the type antenna is poor and at high cost in low elevation gain.
Summary of the invention
In view of the foregoing, the purpose of this utility model is to provide a kind of novel double frequency high-gain circular polarized antennas.
To achieve the above object, the utility model uses a kind of following technical scheme: double frequency high-gain circular polarized antenna, it
It is made of the cylindrical helical antenna unit of pcb board and the left-hand/right-hand being welded on pcb board；
The cylindrical helical formula antenna element is made of two groups of spiral radiating elements, and every group of spiral radiating element includes
Four spiral arms；Antenna element A1, A2, A3, A4 are one group of spiral arm, form one group of spiral radiating element, constitute a frequency
The antenna of section；Antenna element B1, B2, B3, B4 are another group of spiral arm, form another group of spiral radiating element, are constituted another
The antenna of frequency range；
Spaced set between spiral arm in every group of spiral radiating element, and every group spirally radiates list
Spiral arm in member differs 90 ° each other；
The pcb board be FR-4 backing material plate, phase shift feeding network is printed on the pcb board, the phase shift feeding network with
Coaxial cable is connected；Described antenna element A1, A2, A3, A4, B1, B2, B3, B4 respectively with the phase shift feeding network on pcb board
It is connected.
In the utility model preferred embodiment, described antenna element A1, A2, A3, A4 constitute 1.268GHz antenna；Institute
It states antenna element B1, B2, B3, B4 and constitutes 1.616GHz antenna.
The every spiral arm length of run is λ/4 n*, and wherein n is positive integer, and λ is the wavelength of radiation center frequency.
The length of described antenna element A1, A2, A3, A4 are 150-180mm, line footpath Φ=1.5-3mm；
The length of described antenna element B1, B2, B3, B4 are 120-140mm, line footpath Φ=0.5-2mm.
The screw diameter C=15-24mm of the helical antenna unit of the cylinder, spiral arm axial length L=80-
120mm。
Described antenna element A1, A2, A3, A4, B1, B2, B3, B4 are by the printed foil on the PET film of 0.1mm thickness
It forms.
Described two groups the left-handed and counterclockwise phase taper rotation direction of totally eight spiral arms constitute 1.268GHz and 1.616GHz
Double frequency round polarized antenna.
Detailed description of the invention
Fig. 1 is the utility model double frequency high-gain circular polarized antenna schematic perspective view；
Fig. 2 is the utility model double frequency high-gain circular polarized antenna spiral arm flat deployable structure schematic diagram；
Fig. 3 is each spiral arm head-down position relational graph of the utility model double frequency high-gain circular polarized antenna；
Fig. 4 is the pcb board structural schematic diagram for constituting the utility model；
Fig. 5 is the utility model standing wave pattern；
Fig. 6 A and Fig. 6 B are the 2D directional diagram of the utility model darkroom test.
Specific embodiment
The structure of the utility model and feature are described in detail with reference to the accompanying drawings and examples.It needs to illustrate
It is that disclosed embodiments can be made with various modifications, therefore, embodiment disclosed in specification should not be considered as to this
The limitation of utility model, and only as the example of embodiment, the purpose is to keep the feature of the utility model apparent.
Fig. 1 is the utility model double frequency high-gain circular polarized antenna schematic perspective view.As shown, the utility model
Double frequency high-gain circular polarized antenna is made of pcb board 1 and the cylindrical helical antenna unit 2 being welded on pcb board.
The cylindrical helical formula antenna element 2 is made of two groups of spiral radiating elements, and every group of radiating element includes four
Spiral arm.As shown in Fig. 2, antenna element A1, A2, A3, A4 are one group of spiral arm, one group of spiral radiating element is formed, is constituted
1.268GHz antenna element；Antenna element B1, B2, B3, B4 are another group of spiral arm, form another group of spiral radiating element,
Constitute 1.616GHz antenna element.
Spaced set between spiral arm in every group of spiral radiating element, such as spiral arm A1, A2, A3, A4
Spaced set each other, spaced set between spiral arm B1, B2, B3, B4.Meanwhile as shown in figure 3, every group of spiral shell
Spiral arm in rotating radiating element differs 90 ° each other, i.e. spiral arm A1, A2, A3, A4 is spaced 90 ° each other, spiral arm
B1, B2, B3, B4 are spaced 90 ° each other.In this way, two groups of spiral radiating element, that is, antenna element A1, A2, A3, A4, B1,
It is C that B2, B3, B4, which constitute a screw diameter, and spiral arm axial length is the double frequency round polarized antenna of L.
Every spiral arm length of run is λ/4 n* (n is positive integer, and λ is the wavelength of radiation center frequency).In the utility model
In specific embodiment, antenna element, that is, spiral arm A1, A2, A3, A4 length L1=150- of 1.616GHz antenna element is constituted
180mm, line footpath L3=Φ 1.5-3mm.Constitute antenna element, that is, spiral arm B1, B2, B3, B4 of 1.268GHz antenna element
Length L2=120-140mm, line footpath L4=Φ 0.5-2mm.In the utility model specific embodiment, the double frequency round polarized day
The screw diameter C=15-24mm of line, spiral arm axial length L=80-120mm.
As shown in Fig. 2, antenna element, that is, spiral arm A1, A2, A3, A4, B1, B2, B3, the B4 for constituting the utility model is
By made of the printed foil on the PET film of 0.1mm thickness.
As shown in figure 4, the pcb board 1 for constituting the utility model is FR-4 backing material plate, phase shift feed is printed on pcb board
Network 3, the phase shift feeding network are connected with coaxial cable.Described antenna element A1, A2, A3, A4, B1, B2, B3, B4 respectively with
Phase shift feeding network on pcb board is connected.Coaxial cable signal wire is connected with phase shift feeding network, the ground phase of ground wire and pcb board
Even.
In the utility model specific embodiment, the described two groups left-handed and counterclockwise phase taper rotations of totally eight spiral arms
To 1.268GHz and 1.616GHz double frequency round polarized antenna is constituted, it is of course also possible to which dextrorotation constitutes 1.268GHz and 1.616GHz
Double frequency round polarized antenna.The polarization side of antenna is adjusted by adjusting the direction of rotation of spiral arm and the feed direction of phase-shift network
To.
By the length, the screw diameter, pitch (i.e. height of the spiral winding around a circle) adjustable day that adjust spiral arm
The center frequency of line, and it is made to have wider working frequency range in the frequency point of needs, as shown in Figure 5.
Utility model has the advantages that
1, since the utility model is using the structure of the printed foil antenna element on the PET film of 0.1mm thickness, pass through
Width phase quadrature feed realizes circular polarization characteristics in 1.268GHz and 1.616GHz frequency range, and maintains good axis ratio, substantially
Degree promotes the performance of antenna, and realizes the characteristics such as low cost, environmental protection
2, the utility model promotes the gain of antenna by welding two groups of cylindrical helical formula radiating elements on pcb board,
The transmitting-receiving of 1.268GHz, 1.616GHz frequency band signals is realized, there is high-gain, efficient performance.
2, the utility model is fed by the phase shift feeding network on pcb board, realizes circular polarization characteristics.
3, the utility model has preferably due to using constant amplitude phase quadrature feeding technique in 1.268GHz and 1.616GHz
Heart-shaped circular polarization radiation direction, circular polarization characteristics and higher gain are maintained in low elevation location, such as Fig. 6 A and Fig. 6 B
Shown, actual measurement the utility model lowest gain is 4.5dBi.
The above is the preferred embodiment of the utility model and its technical principle used, for the technology of this field
It is any to be based on technical solutions of the utility model base without departing substantially from the spirit and scope of the utility model for personnel
Equivalent transformation, simple replacement on plinth etc. obviously change, and belong within scope of protection of the utility model.
Claims (7)
1. a kind of double frequency high-gain circular polarized antenna, it is characterised in that: it is by pcb board and is welded on cylindrical on pcb board
Helical antenna unit is constituted；
The cylindrical helical formula antenna element is made of two groups of spiral radiating elements, and every group of spiral radiating element includes four
Spiral arm；Antenna element A1, A2, A3, A4 are one group of spiral arm, form one group of spiral radiating element, constitute a frequency range
Antenna；Antenna element B1, B2, B3, B4 are another group of spiral arm, form another group of spiral radiating element, constitute another frequency range
Antenna；
Spaced set between spiral arm in every group of spiral radiating element, and in every group of spiral radiating element
Spiral arm differ 90 ° each other；
The pcb board be FR-4 backing material plate, phase shift feeding network is printed on the pcb board, the phase shift feeding network with it is coaxial
Cable is connected；Described antenna element A1, A2, A3, A4, B1, B2, B3, B4 are connected with the phase shift feeding network on pcb board respectively.
2. double frequency high-gain circular polarized antenna according to claim 1, it is characterised in that: the antenna element A1, A2,
A3, A4 constitute 1.268GHz antenna；Described antenna element B1, B2, B3, B4 constitute 1.616GHz antenna.
3. double frequency high-gain circular polarized antenna according to claim 2, it is characterised in that: the every spiral arm expansion length
Degree is λ/4 n*, and wherein n is positive integer, and λ is the wavelength of radiation center frequency.
4. double frequency high-gain circular polarized antenna according to claim 3, it is characterised in that: the antenna element A1, A2,
The length of A3, A4 are 150-180mm, line footpath Φ=1.5-3mm；
The length of described antenna element B1, B2, B3, B4 are 120-140mm, line footpath Φ=0.5-2mm.
5. double frequency high-gain circular polarized antenna according to claim 4, it is characterised in that: the spiral day of the cylinder
The screw diameter C=15-24mm of line unit, spiral arm axial length L=80-120mm.
6. double frequency high-gain circular polarized antenna described in one of -5 according to claim 1, it is characterised in that: the antenna element
A1, A2, A3, A4, B1, B2, B3, B4 are by made of the printed foil on the PET film of 0.1mm thickness.
7. double frequency high-gain circular polarized antenna according to claim 6, it is characterised in that: described two groups totally eight spiral arms
Left-handed and counterclockwise phase taper rotation direction constitutes 1.268GHz and 1.616GHz double frequency round polarized antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920169622.5U CN209344308U (en) | 2019-01-30 | 2019-01-30 | Double frequency high-gain circular polarized antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920169622.5U CN209344308U (en) | 2019-01-30 | 2019-01-30 | Double frequency high-gain circular polarized antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209344308U true CN209344308U (en) | 2019-09-03 |
Family
ID=67762242
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920169622.5U Expired - Fee Related CN209344308U (en) | 2019-01-30 | 2019-01-30 | Double frequency high-gain circular polarized antenna |
Country Status (1)
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| CN (1) | CN209344308U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110828971A (en) * | 2019-10-18 | 2020-02-21 | 江苏三和欣创通信科技有限公司 | Adjustable stacked multi-arm dual-frequency helical antenna device |
| CN113193340A (en) * | 2021-04-09 | 2021-07-30 | 中国民航大学 | Light and small Beidou multi-arm measurement type antenna based on FPC (flexible printed circuit) flexible material |
| CN114094315A (en) * | 2020-08-24 | 2022-02-25 | 千寻位置网络有限公司 | Eight-arm spiral double-frequency circularly polarized antenna |
| CN116315648A (en) * | 2023-05-16 | 2023-06-23 | 电子科技大学 | High-isolation double-frequency double-fed four-arm spiral antenna |
-
2019
- 2019-01-30 CN CN201920169622.5U patent/CN209344308U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110828971A (en) * | 2019-10-18 | 2020-02-21 | 江苏三和欣创通信科技有限公司 | Adjustable stacked multi-arm dual-frequency helical antenna device |
| CN114094315A (en) * | 2020-08-24 | 2022-02-25 | 千寻位置网络有限公司 | Eight-arm spiral double-frequency circularly polarized antenna |
| CN113193340A (en) * | 2021-04-09 | 2021-07-30 | 中国民航大学 | Light and small Beidou multi-arm measurement type antenna based on FPC (flexible printed circuit) flexible material |
| CN116315648A (en) * | 2023-05-16 | 2023-06-23 | 电子科技大学 | High-isolation double-frequency double-fed four-arm spiral antenna |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190903 Termination date: 20220130 |