CN206332161U - Broadband rfid interrogator microstrip antenna - Google Patents
Broadband rfid interrogator microstrip antenna Download PDFInfo
- Publication number
- CN206332161U CN206332161U CN201621443899.5U CN201621443899U CN206332161U CN 206332161 U CN206332161 U CN 206332161U CN 201621443899 U CN201621443899 U CN 201621443899U CN 206332161 U CN206332161 U CN 206332161U
- Authority
- CN
- China
- Prior art keywords
- radiation patch
- earth plate
- antenna
- dielectric substrate
- dielectric layer
- 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
Abstract
The utility model discloses a kind of broadband rfid interrogator microstrip antenna, including dielectric substrate, earth plate and square radiation patch, the radiation patch is connected with coaxial probe, the radiation patch is attached on the dielectric substrate, the earth plate and the radiation patch are located at the same side of the dielectric substrate, the one of which of the radiation patch is diagonally set to chamfering structure, it is air dielectric layer between the radiation patch and the earth plate, the coaxial probe sequentially passes through the air dielectric layer and the earth plate.This patent is used as its micro-strip " substrate " using air dielectric layer, simultaneously microstrip line is supported using dielectric substrate, coaxial feed is carried out to microstrip antenna, so that microstrip antenna bandwidth is significantly broadening, whole antenna gain is high, reading/writing distance is remote, be right-handed circular polarization antenna, label antenna polarization, which need not be directed at, can activate label antenna, wide and very convenient using scope.
Description
Technical field
The utility model belongs to technical field of RFID, and in particular to a kind of broadband rfid interrogator microstrip antenna.
Background technology
Microstrip antenna generally comprises one piece of thickness and is much smaller than the medium substrate of operation wavelength, is arranged at medium substrate wherein one
The earth plate in face, the metal radiation paster for being arranged at the other one side of medium substrate, radiation patch are connected with coaxial probe, coaxial to visit
Pin passes through medium substrate and earth plate.Microstrip antenna is because with small volume, lightweight, section is low, feeding classification is flexible, cost
It is low, it is easy to manufacture, and the advantages of easily with aircraft syntype, now, it is widely used in radio communication.But common micro-strip
Antenna has its intrinsic defect, i.e. its impedance bandwidth narrower, and the bandwidth of general microstrip antenna only has 5% or so, microstrip antenna
Narrow-band characteristic into its wide variety of major obstacle is limited, therefore, the bandwidth of broadening microstrip antenna has particularly significant
Meaning.
Utility model content
The purpose of this utility model, which is that, provide a kind of broadband rfid interrogator micro-strip to solve the above problems
Antenna.
The utility model is achieved through the following technical solutions above-mentioned purpose：
A kind of broadband rfid interrogator microstrip antenna, including dielectric substrate, earth plate and square radiation patch, it is described
Radiation patch is connected with coaxial probe, and the radiation patch is attached on the dielectric substrate, the earth plate and radiation patch
Piece is located at the same side of the dielectric substrate, and the one of which of the radiation patch is diagonally set to chamfering structure, the radiation
It is air dielectric layer between paster and the earth plate, the coaxial probe sequentially passes through the air dielectric layer and the ground connection
Plate.
Preferably, the dielectric substrate is supported on the earth plate by polytetrafluoroethylene (PTFE) support column and constitutes the sky
Gas medium layer.
The beneficial effects of the utility model are：
This patent is used as its micro-strip " substrate " using air dielectric layer, while microstrip line is supported using dielectric substrate, to micro-
Band antenna carries out coaxial feed, so that microstrip antenna bandwidth is significantly broadening, whole antenna gain is high, reading/writing distance is remote, be the right side
Hand circular polarization antenna, label antenna can be activated without being directed at label antenna polarization, wide and very convenient using scope.
Brief description of the drawings
Fig. 1 is not drawn earth plate and polytetrafluoroethylene (PTFE) support column in planar structure schematic diagram of the present utility model, figure；
Fig. 2 is side structure schematic view of the present utility model；
In figure：1- dielectric substrates, 2- radiation patch, 3- coaxial probes, 4- earth plates, 5- polytetrafluoroethylene (PTFE) support columns, 6-
Air dielectric layer.
Embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings：
As depicted in figs. 1 and 2, the utility model includes dielectric substrate 1, earth plate 4 and square radiation patch 2, radiation
Paster 2 is connected with coaxial probe 3, and radiation patch 2 is attached on dielectric substrate 1, and earth plate 4 and radiation patch 2 are located at dielectric substrate 1
The same side, the one of which of radiation patch 2 is diagonally set to chamfering structure, is situated between radiation patch 2 and earth plate 4 for air
Matter layer 6, coaxial probe 3 sequentially passes through air dielectric layer 6 and earth plate 4.
Dielectric substrate 1 is supported on earth plate 4 by polytetrafluoroethylene (PTFE) support column 5 and constitutes air dielectric layer 6.
Original technology is that radiation patch 2 and earth plate 4 are arranged on to the both sides of medium substrate, sharp in the utility model
Original medium substrate is instead of with air dielectric layer 6, i.e., radiation patch 2 and earth plate 4 are arranged on the two of air dielectric layer 6
Side, and dielectric substrate 1 is a kind of supporting construction as radiation patch 2, its thickness is thin more than medium substrate in original technology, is situated between
Matter substrate 1 is connected to earth plate 4 by the support of polytetrafluoroethylene (PTFE) support column 5, both plays a supporting role, and is also pasted without interference with radiation
Piece 2 and coaxial probe 3.
Preferred embodiment of the present utility model is these are only, it is all in this practicality not to limit the utility model
Any modification, equivalent and improvement made within new spirit and principle etc., should be included in guarantor of the present utility model
In the range of shield.
Claims (2)
1. a kind of broadband rfid interrogator microstrip antenna, including earth plate and square radiation patch, the radiation patch connect
It is connected to coaxial probe, it is characterised in that：Also include dielectric substrate, the radiation patch is attached on the dielectric substrate, described to connect
Floor and the radiation patch are located at the same side of the dielectric substrate, and the one of which of the radiation patch is diagonally set to down
Corner structure, is air dielectric layer between the radiation patch and the earth plate, the coaxial probe sequentially passes through the air
Dielectric layer and the earth plate.
2. broadband rfid interrogator microstrip antenna according to claim 1, it is characterised in that：The dielectric substrate passes through
Polytetrafluoroethylene (PTFE) support column is supported on the earth plate and constitutes the air dielectric layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621443899.5U CN206332161U (en) | 2016-12-27 | 2016-12-27 | Broadband rfid interrogator microstrip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621443899.5U CN206332161U (en) | 2016-12-27 | 2016-12-27 | Broadband rfid interrogator microstrip antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206332161U true CN206332161U (en) | 2017-07-14 |
Family
ID=59292887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621443899.5U Active CN206332161U (en) | 2016-12-27 | 2016-12-27 | Broadband rfid interrogator microstrip antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206332161U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918650A (en) * | 2018-05-18 | 2018-11-30 | 武汉理工大学 | Monitor the passive and wireless paster antenna sensor of bead crack |
| CN109755742A (en) * | 2019-02-27 | 2019-05-14 | 南京邮电大学 | A kind of single-frequency high-gain mixing array element research of planar reflectarray antennas |
-
2016
- 2016-12-27 CN CN201621443899.5U patent/CN206332161U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108918650A (en) * | 2018-05-18 | 2018-11-30 | 武汉理工大学 | Monitor the passive and wireless paster antenna sensor of bead crack |
| CN109755742A (en) * | 2019-02-27 | 2019-05-14 | 南京邮电大学 | A kind of single-frequency high-gain mixing array element research of planar reflectarray antennas |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203071222U (en) | Dual polarization ultra-wideband radiation device | |
| CN206332161U (en) | Broadband rfid interrogator microstrip antenna | |
| CN103000994A (en) | Micro-strip antenna unit and array thereof | |
| CN105161847B (en) | Wide band high-gain circular polarized antenna | |
| CN204732527U (en) | Be applied to the wrist-watch antenna of Big Dipper location time dissemination system | |
| CN203983480U (en) | A kind of broadband and wide wave beam circular polarized antenna | |
| CN204088565U (en) | WIFI antenna and apply the radio communication device of this WIFI antenna | |
| CN102738572A (en) | Broadband directional microstrip patch antenna | |
| CN105024145A (en) | Miniature high-gain microstrip antenna | |
| CN103280624A (en) | Patch antenna | |
| CN202616409U (en) | Broadband directional microstrip patch antenna | |
| CN104466379A (en) | Broadband circularly polarized patch antenna with loaded sheet metals | |
| CN109037931A (en) | Dual-band dual-circular polarization Beidou navigation antenna and Beidou satellite navigation terminal device | |
| CN102904011A (en) | Balance microstrip line transition full-mode dual-ridged integrated waveguide feed dipole printed antenna | |
| CN209344311U (en) | A kind of C-band wide band high-gain microstrip antenna | |
| CN206332180U (en) | Multifrequency microstrip antenna | |
| CN209344327U (en) | C-band Broadband Circular Polarization Microstrip Antenna battle array | |
| CN103887610A (en) | Broad-band micro-strip PIFA | |
| CN206992315U (en) | A kind of lower coupling microstrip antenna array based on defect ground structure | |
| CN209344310U (en) | A kind of C-band Space Coupling fed microstrip antenna | |
| CN202871983U (en) | Mobile terminal built-in antenna device and mobile terminal thereof | |
| CN103178340A (en) | Balanced micro-strip line feeding printed V-shaped antenna with loading metal disc | |
| CN204216220U (en) | A kind of broadband circular polarization patch antenna having sheet metal to load | |
| CN201112561Y (en) | Slotted hole coupling type micro-strip antenna | |
| CN209088061U (en) | A kind of high-gain low section circular polarization microstrip antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |