CN207398345U - A kind of 2.4G microstrip antennas of low cost - Google Patents
A kind of 2.4G microstrip antennas of low cost Download PDFInfo
- Publication number
- CN207398345U CN207398345U CN201721370035.XU CN201721370035U CN207398345U CN 207398345 U CN207398345 U CN 207398345U CN 201721370035 U CN201721370035 U CN 201721370035U CN 207398345 U CN207398345 U CN 207398345U
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- CN
- China
- Prior art keywords
- medium substrate
- low cost
- microstrip antennas
- ground unit
- radiating element
- Prior art date
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Abstract
The utility model is related to technical field of RFID.There is provided a kind of 2.4G microstrip antennas of low cost, which should have the characteristics that cost is relatively low, function admirable.Technical solution is：A kind of 2.4G microstrip antennas of low cost, including PCB circuit board and CA cable assembly；It is characterized in that：The PCB circuit board includes medium substrate and the radiating element and ground unit that are separately positioned on medium substrate two sides；The inner core of the radiating element connecting cable component, the outer conductor of ground unit connecting cable component；The radiating element is T-shaped structure and is arranged on the positive center of medium substrate；The ground unit is rectangular configuration and is arranged on the center of medium substrate reverse side.
Description
Technical field
The utility model is related to technical field of RFID, are specifically a kind of 2.4G microstrip antennas of low cost.
Background technology
Microstrip antenna is overleaf to have the antenna formed on the dielectric substrate of conductor earth plate by conductor sheet stickup, leads to
It is often fed using microstrip transmission line or coaxial probe, makes to encourage electromagnetic field of high frequency between conductor sheet and earth plate, and pass through
Gap between thin slice surrounding and earth plate is to external radiation.Conductor sheet therein be regular shape metal patch, Ke Yishi
The shapes such as rectangle, circle or ellipse or the thin slice oscillator (dipole) of long narrow bar shaped are made of these units
Array structure.
Microstrip antenna has many advantages, such as miniaturization, easy of integration, good directionality, therefore it has a extensive future, and especially may be used
Positive popularization and application on electronic fuse, but there is also cost it is higher the defects of, it is necessary to be further improved.
Utility model content
The purpose of the utility model is to overcome the deficiency in above-mentioned background technology, a kind of 2.4G micro-strips day of low cost is provided
Line, the microstrip antenna should have the characteristics that cost is relatively low, function admirable.
The technical solution of the utility model is：
A kind of 2.4G microstrip antennas of low cost, including PCB circuit board and CA cable assembly；It is characterized in that：The PCB lines
Road plate includes medium substrate and the radiating element and ground unit that are separately positioned on medium substrate two sides；The radiating element connects
Connect the inner core of CA cable assembly, the outer conductor of ground unit connecting cable component；
The radiating element is T-shaped structure and is arranged on the positive center of medium substrate；The ground unit is
Rectangular configuration and the center for being arranged on medium substrate reverse side.
The radiating element includes oscillator balun and two feed branch being connected with oscillator balun one end, the feed
Branch is symmetrical and is arranged in parallel in oscillator balun both sides.
The other end of the oscillator balun is equipped with the connecting hole for connecting cable component.
The ground unit is perpendicular to oscillator balun.
The PCB circuit board is double face copper, and medium substrate is FR-4 epoxy plates.
The beneficial effects of the utility model are：
With forming microstrip antenna after CA cable assembly welding, the ground connection in PCB circuit board is single for the PCB circuit board of the utility model
Member plays key effect to the anti-interference of antenna, which can be used for most Small-scale Flat antenna, micro- with existing metal
Band antenna is compared, and while basic performance demand is met, greatly reduces production cost, and with easy to assembly, performance knot
The advantages of structure is stablized.
Description of the drawings
Fig. 1 is the main structure diagram of PCB circuit board in the utility model.
Fig. 2 is the backsight structural representation of PCB circuit board in the utility model.
Fig. 3 is the structure diagram of radiating element.
Fig. 4 is the structure diagram of ground unit.
Specific embodiment
Below in conjunction with Figure of description, the utility model is described in further detail, but the utility model be not limited to
Lower embodiment.
A kind of 2.4G microstrip antennas of low cost, including PCB circuit board and CA cable assembly.The PCB circuit board is two-sided
Copper-clad plate including medium substrate 1 and is separately positioned on the radiating element 2 on medium substrate two sides and ground unit 3.The medium
Substrate is square, and with reference to practical condition and cost factor, the length of side of medium substrate is 70-90mm (preferential 84mm),
Thickness is 0.05-2mm (preferably 1mm), and dielectric constant is 1-10 (preferably 4.4), and medium substrate is FR-4 epoxy plates.The radiation
Unit and ground unit are the layers of copper being arranged on medium substrate, and pass through anti-oxidation processing.
As shown in Figure 1, the radiating element is T-shaped structure and is arranged on the positive center of medium substrate, radiate
The inner core of unit connecting cable component.As shown in figure 3, the radiating element includes the oscillator balun 21 positioned at center, oscillator bar
The lower end of human relations is equipped with to be connected as the connecting hole 22 of CA cable assembly, and gold is made with the cooperation of through hole 11 on medium substrate in connecting hole
Categoryization hole, the inner core of CA cable assembly are welded with connecting hole, and the upper end of oscillator balun extends to form two to both sides and is arranged symmetrically
Branch.In every branch, for feed branch 23 parallel to oscillator balun, lead 22 connects the upper end of feed branch and oscillator bar respectively
The upper end of human relations.
The length (vertical direction in Fig. 3) of the oscillator balun is 20-30mm (preferably 25.5mm) and width is 6-
10mm (preferably 8mm), the length (vertical direction in Fig. 3) of feed branch is 7-10mm (preferably 8.5mm) and width is 3-5mm
The spacing of (preferably 4mm), oscillator balun and feed branch is 1-3mm (preferably 2mm).
As shown in Fig. 2, the ground unit is rectangular configuration and is arranged on the center of medium substrate reverse side, it is grounded
The outer conductor of unit connecting cable component (outer conductor of CA cable assembly and the edge position of ground unit are welded).The ground connection is single
Member is perpendicular to oscillator balun.The length (horizontal direction in Fig. 4) of the ground unit is 30-40mm (preferably 35mm) and width
It is preferably 8-12mm (preferably 10mm).Circular hole 31 is additionally provided on the ground unit, one end of plated through-hole is located in the circular hole.
As radiating doublet after the welding of the inner core of the radiating element and CA cable assembly, ground unit and CA cable assembly it is outer
Ground connection and Anti-Jamming have been played after conductor welding.The CA cable assembly of the utility model is conventional material, is omitted in figure.
Claims (5)
1. a kind of 2.4G microstrip antennas of low cost, including PCB circuit board and CA cable assembly；It is characterized in that：The PCB circuits
Plate includes medium substrate (1) and is separately positioned on the radiating element (2) on medium substrate two sides and ground unit (3)；The spoke
Penetrate the inner core of unit connecting cable component, the outer conductor of ground unit connecting cable component；
The radiating element is T-shaped structure and is arranged on the positive center of medium substrate；The ground unit is rectangle
Structure and the center for being arranged on medium substrate reverse side.
2. a kind of 2.4G microstrip antennas of low cost according to claim 1, it is characterised in that：The radiating element includes
Oscillator balun (21) and two feed branch (23) being connected with oscillator balun one end, the feed branch is symmetrical and parallel cloth
It puts in oscillator balun both sides.
3. a kind of 2.4G microstrip antennas of low cost according to claim 2, it is characterised in that：The oscillator balun it is another
One end is equipped with the connecting hole (22) for connecting cable component.
4. a kind of 2.4G microstrip antennas of low cost according to claim 3, it is characterised in that：The ground unit is vertical
In oscillator balun.
5. a kind of 2.4G microstrip antennas of low cost according to claim 4, it is characterised in that：The PCB circuit board is
Double face copper, and medium substrate is FR-4 epoxy plates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721370035.XU CN207398345U (en) | 2017-10-23 | 2017-10-23 | A kind of 2.4G microstrip antennas of low cost |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721370035.XU CN207398345U (en) | 2017-10-23 | 2017-10-23 | A kind of 2.4G microstrip antennas of low cost |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207398345U true CN207398345U (en) | 2018-05-22 |
Family
ID=62329784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721370035.XU Active CN207398345U (en) | 2017-10-23 | 2017-10-23 | A kind of 2.4G microstrip antennas of low cost |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207398345U (en) |
-
2017
- 2017-10-23 CN CN201721370035.XU patent/CN207398345U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |