CN207338633U - A kind of flat plane antenna of directional diagram three-dimensional omnidirectional - Google Patents
A kind of flat plane antenna of directional diagram three-dimensional omnidirectional Download PDFInfo
- Publication number
- CN207338633U CN207338633U CN201721415964.8U CN201721415964U CN207338633U CN 207338633 U CN207338633 U CN 207338633U CN 201721415964 U CN201721415964 U CN 201721415964U CN 207338633 U CN207338633 U CN 207338633U
- Authority
- CN
- China
- Prior art keywords
- metal
- antenna
- directional diagram
- flat plane
- plane antenna
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Waveguide Aerials (AREA)
Abstract
The utility model provides a kind of flat plane antenna of directional diagram three-dimensional omnidirectional, including：Metal radiation patch, medium substrate.Wherein metal radiation patch includes metal outer frame and inner metal bezel, and metal outer frame and inner metal bezel are open；Metal outer frame is connected with inner metal bezel by metal tape line；Inner metal bezel opening connects feeding network.Spherical antenna antenna pattern can be realized using this design, i.e. antenna radiation pattern is respectively less than 3dBi to gain fluctuation.It ensure that the directional diagram effect of the various diverse locations of antenna in the application, improve the using flexible of antenna.
Description
Technical field
Microwave antenna is the utility model is related to, more particularly to vehicle-mounted compound visa card in electronic toll system for road
(CPC) antenna of application in.
Background technology
There is charge in toll on the road and bridge's system (including electronic charging system without parking (ETC) and manual toll collection system (MTC))
There are the situation of two or more driving path, i.e. ambiguity path between the Liang Ge charge stations of network of highways.ETC or MTC
Vehicle needs to carry out information exchange using the roadside unit (RSU) of CPC cards and ID of trace route path point when passing through turn pike, and by road
Preserved in the information write-in CPC cards of footpath.
CPC cards need to receive by omnidirectional antenna or send buying signals, therefore the performance indicator of antenna directly affects
The realization of the communication technology index of CPC cards.
According to CPC card usage scenarios, usually require that it with good environmental suitability, good three-dimensional omnidirectional's characteristic.
Since three-dimensional omni-directional monopole antenna realizes difficulty, generally common half-wavelength doublet antenna, the type antenna disadvantage is day
Line directional diagram there are zero point, when antenna null and zero crossings region face RSU antennas CPC cards antenna can not receive or
Launch buying signals.
Utility model content
The purpose of this utility model is to provide a kind of flat plane antenna of directional diagram three-dimensional omnidirectional.Antenna structure form letter
Single, size is smaller, is easily integrated, while has three-dimensional omnidirectional's characteristic, i.e., the space all directions figure radiation work(centered on card
Rate fluctuation is less than 3dB.
The purpose of this utility model is to provide a kind of flat plane antenna of directional diagram three-dimensional omnidirectional, including：Metal radiation pastes
Piece, medium substrate, wherein：
The metal radiation patch is located at the upper surface of medium substrate.
Alternatively, metal radiation patch includes metal outer frame and inner metal bezel, is connected between the two by metal tape line.
Alternatively, metal outer frame is not enclosing square metal frame, and for girth between 6mm-300mm, arm is wide in 0.15mm-
Between 10mm.
Alternatively, inner metal bezel is not enclosing square metal frame, and for girth between 3mm-150mm, arm is wide in 0.15mm-
There are 2 pairs of unconnected metal wires between 10mm, among inner metal bezel, the line width of metal wire is between 0.15mm-10mm.
Alternatively, inner metal bezel, opening connection feeding network.
Alternatively, feeding network, is differential feed network, is picked out by parallel metal strips line, and band line width is in 0.15-10mm
Between.
The beneficial effects of the utility model are, the antenna is used in CPC cards, can realize the three-dimensional omnidirectional of directional diagram
Property, i.e., the gain fluctuation in all directions is less than 3dB, improves the environmental suitability of CPC cards, it is possible to achieve various positions, each
The good receiving and transmitting signal of kind angle, improves the transaction success rate of CPC cards.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Attached drawing is briefly described needed in description.
Fig. 1 is a kind of stereogram of the flat plane antenna for directional diagram three-dimensional omnidirectional that the utility model embodiment is related to.
Fig. 2 is a kind of E faces directional diagram of the flat plane antenna for directional diagram three-dimensional omnidirectional that the utility model embodiment is related to.
Fig. 3 is a kind of H faces directional diagram of the flat plane antenna for directional diagram three-dimensional omnidirectional that the utility model embodiment is related to.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole realities
Apply example.
A kind of flat plane antenna of directional diagram three-dimensional omnidirectional of the embodiment, applied in the compound visa card systems of CPC, such as schemes
Shown in 1,101 be metal radiation patch, and 102 be medium substrate.
The working frequency of the antenna is 5.8GHz, adjusts the structural parameters of antenna, the performance of antenna is optimized.Its
In, the metal outer frame Zhou Changwei 42mm of metal radiation patch 101, metal outer frame line width is 1.3mm, metal radiation patch 101
The Zhou Changwei 26mm of inner metal bezel, inner metal bezel line width are 0.3mm, and the line width that metal wire is not connected in inner metal bezel is 0.5mm,
Line length is 3.1mm, and the line width of parallel difference feed line is 0.25mm.
The flat plane antenna for a kind of directional diagram three-dimensional omnidirectional that the utility model embodiment is related to it can be seen from Fig. 2 and Fig. 3
The gain fluctuation maximum of E faces directional diagram be 1.37dB, the gain fluctuation maximum of H faces directional diagram is 2.92dB.Thus may be used
Know, the antenna performance that the utility model embodiment provides reaches each requirement for being less than 3dB to gain fluctuation.
It should be noted that a kind of flat plane antenna of directional diagram three-dimensional omnidirectional provided by the utility model, its metal radiation
The metal frame of patch 101 is not limited to rectangle, may be arranged as circular ring shape, oval ring, or irregular figure etc., this
Field technology personnel can require to select suitable radiation patch shape according to specifically used, and the utility model does not limit.
It should be noted that the flat plane antenna of directional diagram three-dimensional omnidirectional provided by the utility model, is applicable not only to CPC cards
Antenna Design, be also applied for the application scenario of any required three-dimensional omni-directional monopole antenna.Those skilled in the art can be according to specific
Usage scenario selects suitable antenna form, and the utility model does not limit.
Although being described in conjunction with the accompanying the embodiment of the utility model, those skilled in the art can not depart from
Various modifications and variations are made in the case of the spirit and scope of the utility model, such modifications and variations have each fallen within appended
Within claim limited range.
Claims (6)
- A kind of 1. flat plane antenna of directional diagram three-dimensional omnidirectional, it is characterised in that including：Metal radiation patch, medium substrate, its In：The metal radiation patch is located at the upper surface of medium substrate.
- 2. the flat plane antenna of directional diagram three-dimensional omnidirectional according to claim 1, it is characterised in that the metal radiation patch Including metal outer frame and inner metal bezel, connected between the two by metal tape line.
- 3. the flat plane antenna of directional diagram three-dimensional omnidirectional according to claim 2, it is characterised in that the metal outer frame is not Enclosing square metal frame, for girth between 6mm-300mm, arm is wide between 0.15mm-10mm.
- 4. the flat plane antenna of directional diagram three-dimensional omnidirectional according to claim 2, it is characterised in that the inner metal bezel is not Enclosing square metal frame, for girth between 3mm-150mm, arm is wide between 0.15mm-10mm, has 2 pairs among inner metal bezel not The metal wire of connection, the line width of metal wire is between 0.15mm-10mm.
- 5. the flat plane antenna of directional diagram three-dimensional omnidirectional according to claim 2, it is characterised in that the inner metal bezel, is opened Feeding network is connected at mouthful.
- 6. the flat plane antenna of directional diagram three-dimensional omnidirectional according to claim 5, it is characterised in that the feeding network, is Differential feed network, is picked out by parallel metal strips line, and band line width is between 0.15-10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721415964.8U CN207338633U (en) | 2017-10-30 | 2017-10-30 | A kind of flat plane antenna of directional diagram three-dimensional omnidirectional |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721415964.8U CN207338633U (en) | 2017-10-30 | 2017-10-30 | A kind of flat plane antenna of directional diagram three-dimensional omnidirectional |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207338633U true CN207338633U (en) | 2018-05-08 |
Family
ID=62363269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721415964.8U Active CN207338633U (en) | 2017-10-30 | 2017-10-30 | A kind of flat plane antenna of directional diagram three-dimensional omnidirectional |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207338633U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD989050S1 (en) * | 2018-09-24 | 2023-06-13 | Galvani Bioelectronics Limited | Planar antenna |
-
2017
- 2017-10-30 CN CN201721415964.8U patent/CN207338633U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD989050S1 (en) * | 2018-09-24 | 2023-06-13 | Galvani Bioelectronics Limited | Planar antenna |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1903531B1 (en) | Vehicle identification | |
| KR101619322B1 (en) | Nfc antenna module using metal case | |
| CN202268482U (en) | Ultrahigh frequency radio frequency identification reader-writer antenna for electronic toll collection system | |
| CN104682005A (en) | Antenna structure | |
| TWI815527B (en) | Removable RFID switch tag | |
| CN207338633U (en) | A kind of flat plane antenna of directional diagram three-dimensional omnidirectional | |
| CN201191647Y (en) | RFID electronic label antenna having dual T type slot radiation element | |
| CN104425873B (en) | Electronic device | |
| CN201194252Y (en) | Linearly polarized micro-strip antenna | |
| KR102119533B1 (en) | Rear cover and portable device having the antenna | |
| US20160079658A1 (en) | Wireless Communication Antenna Module and Portable Terminal Comprising Same | |
| CN101635393A (en) | Circularly polarized MIMO antenna system in RFID technical management field | |
| CN101695926A (en) | Intelligent track-traffic security early-warning system | |
| CN106532246B (en) | Combined antenna | |
| CN207852909U (en) | A kind of RFID tag and radio-frequency recognition system | |
| CN103138041A (en) | Omni-directional radio frequency identification (RFID) tag antenna, RFID tag and RFID system | |
| CN207624911U (en) | A kind of high-gain microstrip antenna and vehicle carried electronic label | |
| CN207474663U (en) | A kind of omni-directional plane antenna for inhibiting harmonic wave | |
| CN104466364A (en) | Electronic license plate antenna based on RFID | |
| CN207624910U (en) | A kind of microstrip antenna and vehicle carried electronic label of trap structure | |
| CN204375917U (en) | A kind of electronic license plate antenna based on RFID | |
| CN107911789A (en) | Radio wave alignment system, positioning and charging method based on fish-eye lens | |
| CN206224566U (en) | Anti-metal RFID tag and the radio-frequency recognition system including the label | |
| CN208622943U (en) | A kind of transmitting-receiving separate type positioning antenna for RFID system | |
| KR100409047B1 (en) | Credit card type transponder with radio frequency remote Identify system for long range cognition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |