CN212182545U - Three-dimensional printed inverted-F antenna and Internet-of-things household appliance - Google Patents
Three-dimensional printed inverted-F antenna and Internet-of-things household appliance Download PDFInfo
- Publication number
- CN212182545U CN212182545U CN202020567425.1U CN202020567425U CN212182545U CN 212182545 U CN212182545 U CN 212182545U CN 202020567425 U CN202020567425 U CN 202020567425U CN 212182545 U CN212182545 U CN 212182545U
- Authority
- CN
- China
- Prior art keywords
- antenna
- radiator
- arm member
- arm component
- ground
- 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.)
- Expired - Fee Related
Links
- 238000010146 3D printing Methods 0.000 claims abstract description 10
- 239000002184 metal Substances 0.000 claims description 18
- 229910052751 metal Inorganic materials 0.000 claims description 18
- 239000007787 solid Substances 0.000 claims 9
- 230000006855 networking Effects 0.000 abstract description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 238000004088 simulation Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000011889 copper foil Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Landscapes
- Details Of Aerials (AREA)
Abstract
The utility model provides a three-dimensional printing falls F antenna and thing networking household electrical appliances, relates to antenna technical field, and this three-dimensional printing falls F antenna includes irradiator, feeder, first ground connection arm component and second ground connection arm component, the feeder with the irradiator is fixed, first ground connection arm component with the irradiator is fixed, and does not fall feeder with in the plane that the irradiator formed, second ground connection arm component with first ground connection arm component is fixed. Because the first grounding arm component fixed with the radiator does not fall on the plane formed by the feeder line and the radiator, the antenna is changed into a three-dimensional shape, the plane size of the antenna is reduced, the usable scope of the antenna is increased, the market competitiveness of the internet of things household appliance product adopting the antenna is improved, and meanwhile, the manufacturing cost of the antenna is unchanged.
Description
Technical Field
The utility model relates to an antenna technology field especially relates to a but three-dimensional printing falls F antenna and thing networking household electrical appliances.
Background
Along with the process of digitalization and networking, the smart home becomes the development trend of future home life. Through wireless connection technologies such as bluetooth, wiFi, 4G, 5G, with the inside communication equipment relevant with the information of family, domestic appliance and family security system are connected to a family's intelligent system on, form the thing networking. The inverted-F antenna is small in size and convenient to integrate on a printed circuit board, and is applied to most Internet of things household appliances.
For a common planar inverted-F antenna, the radiating element and the ground wire of the planar inverted-F antenna are both thin conductors, the lengths of the feeder and the ground wire are consistent, and the planar size of the antenna is large.
SUMMERY OF THE UTILITY MODEL
One of the purposes of the utility model is to avoid the weak point among the prior art and provide a three-dimensional printing antenna of falling F, this three-dimensional printing antenna of falling F optimizes the structure of the antenna of falling F for the planar dimension of antenna is littleer.
The purpose of the utility model is realized through the following technical scheme:
the utility model provides a three-dimensional printed inverted-F antenna, includes radiator, feeder, first ground arm component and second ground arm component, the feeder with the radiator is fixed, first ground arm component with the radiator is fixed, and does not fall in the plane that feeder and radiator formed, second ground arm component with first ground arm component is fixed. Because the first grounding arm component fixed with the radiator does not fall on the plane formed by the feeder line and the radiator, the antenna is changed into a three-dimensional shape, the plane size of the antenna is reduced, the usable scope of the antenna is increased, the market competitiveness of the internet of things household appliance product adopting the antenna is improved, and meanwhile, the manufacturing cost of the antenna is unchanged.
Further, the first ground arm member is perpendicular to a plane formed by the feed line and the radiator, and the second ground arm member is parallel to the plane formed by the feed line and the radiator. The first grounding arm component is perpendicular to a plane formed by the feeder line and the radiator, and the second grounding arm component is parallel to the plane formed by the feeder line and the radiator, so that the plane and the three-dimensional size of the antenna can be smaller, and the antenna is convenient to mount.
Furthermore, at least one metal via hole for realizing the electrical connection of the upper layer and the lower layer of the printed circuit board is arranged at the fixing position of the first grounding arm component and the radiator; or the first grounding arm component is a metal via hole which is arranged on the printed circuit board and used for realizing the electrical connection of the upper layer and the lower layer of the printed circuit board, two ends of the metal via hole are respectively connected with the radiator and the second grounding arm component, and at least one metal via hole is arranged. Because the second grounding arm member and the feeder line are positioned on different layers of the printed circuit board, the metal via hole arranged at the fixing position of the first grounding arm member and the radiator can realize the electrical connection of the upper layer and the lower layer of the printed circuit board, and certainly, the metal via hole can also be used as the first grounding arm member.
Further, the first grounding arm member has a height of l1The following relationship is satisfied: l is not less than 0.2mm1≤2mm。
Further, the first grounding arm member has a height l1＝0.8mm。
Further, the length of the radiator is l2Said second grounded arm member having a length l3The following relationship is satisfied: l2+l3＝0.25*c/[freq*sqrt(er)]，1mm≤l3Less than or equal to 10mm, wherein c is the light speed in vacuum, freq is the central frequency of the antenna, sqrt represents the root number, and er is the relative dielectric constant of the medium.
Further, the length l of the second grounding arm member3＝5mm。
Further, the length of the feeder line is l4The following relationship is satisfied: 1mm is less than or equal to l4≤10mm。
Furthermore, an impedance matching network is arranged in the area where the feeder enters the ground plane projection.
The utility model discloses a second aim at avoids the weak point among the prior art and provides a thing networking household electrical appliances, this thing networking household electrical appliances use foretell three-dimensional printing down F antenna, because the first ground connection arm component fixed with the irradiator does not fall on the plane that feeder and irradiator formed, thereby make the antenna become three-dimensional form, make the plane size of antenna diminish, increased the scope that the antenna can be used, the market competitiveness of the thing networking household electrical appliances product that adopts this antenna has been improved, the manufacturing cost of this antenna is unchangeable simultaneously.
The utility model has the advantages that: the utility model discloses a three-dimensional printing falls F antenna and thing networking household electrical appliances, this three-dimensional printing falls F antenna include irradiator, feeder, first ground connection arm component and second ground connection arm component, the feeder with the irradiator is fixed, first ground connection arm component with the irradiator is fixed, and does not fall feeder with in the plane that the irradiator formed, second ground connection arm component with first ground connection arm component is fixed. Because the first grounding arm component fixed with the radiator does not fall on the plane formed by the feeder line and the radiator, the antenna is changed into a three-dimensional shape, the plane size of the antenna is reduced, the usable scope of the antenna is increased, the market competitiveness of the internet of things household appliance product adopting the antenna is improved, and meanwhile, the manufacturing cost of the antenna is unchanged.
Drawings
The invention is further described with the aid of the accompanying drawings, in which, however, the embodiments do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived from the following drawings without inventive effort.
Fig. 1 is a schematic front structural view of the three-dimensional printed inverted-F antenna of the present invention.
Fig. 2 is a schematic perspective view of the three-dimensional printed inverted-F antenna of the present invention.
Fig. 3 is a return loss simulation diagram of a three-dimensional printed inverted-F antenna of the present invention.
The figure includes:
metal via 1, impedance matching network 2.
Detailed Description
The invention will be further described with reference to the following examples.
Example 1
A three-dimensional printed inverted-F antenna of this embodiment, as shown in fig. 1-2, includes a radiator L, a feed line F, a first ground arm member S and a second ground arm member H, where the feed line F is fixed to the radiator L, the first ground arm member S is fixed to the radiator L and does not fall in a plane formed by the feed line F and the radiator L, and the second ground arm member H is fixed to the first ground arm member S. The first grounding arm component S fixed with the radiator L does not fall on a plane formed by the feeder F and the radiator L, so that the antenna becomes three-dimensional, the plane size of the antenna is reduced, the usable scope of the antenna is increased, the market competitiveness of the Internet of things household appliance product adopting the antenna is improved, and meanwhile, the manufacturing cost of the antenna is unchanged.
The first ground arm member S is perpendicular to a plane formed by the feed line F and the radiator L, and the second ground arm member H is parallel to a plane formed by the feed line F and the radiator L. The first grounding arm component S is perpendicular to a plane formed by the feeder line F and the radiator L, and the second grounding arm component H is parallel to the plane formed by the feeder line F and the radiator L, so that the plane and the three-dimensional size of the antenna can be better smaller, and the antenna is convenient to mount.
At least one metal through hole 1 for realizing the electrical connection of the upper layer and the lower layer of the printed circuit board is arranged at the fixing position of the first grounding arm component S and the radiator L; or the first grounding arm component S is a metal via hole 1 which is arranged on the printed circuit board and used for realizing the electrical connection of the upper layer and the lower layer of the printed circuit board, two ends of the metal via hole 1 are respectively connected with the radiator L and the second grounding arm component H, and at least one metal via hole 1 is arranged. Because the second grounding arm component H and the feeder F are positioned on different layers of the printed circuit board, the metal via hole 1 arranged at the fixing position of the first grounding arm component S and the radiator L can realize the electrical connection of the upper layer and the lower layer of the printed circuit board, the design can enhance the anti-interference capability of the antenna, improve the isolation of the antenna, simultaneously can not generate additional resonance points, generate a multi-frequency effect, enable the space of the part of the antenna to be more concise and compact, and enable the designed antenna to accord with the module design with more sizes; since the metal via 1 is a printed wiring that connects the layers, the metal via 1 may be used as the first ground arm member S.
The first grounding arm member S has a height of l1The height of the board is the same as that of the adjacent layer of the printed circuit board, and is usually not less than l and 0.2mm1≤2mm。
The height of the respective first grounding arm member S is most suitably l1＝0.8mm。
The length of the radiator L is L2The length of the second grounding arm member H is l3General 12+l3Is close to 1/4 operating wavelength, satisfies the following relationship: l2+l3＝0.25*c/[freq*sqrt(er)]，1mm≤l3Less than or equal to 10mm, wherein c is the light speed in vacuum, freq is the central frequency of the antenna, sqrt represents the root number, and er is the relative dielectric constant of the medium. Particularly, in the WiFi band, the center frequency is 2.44GHz, FR4 is used as the printed circuit board substrate, and the er of FR4 is about 4.4, but considering that the circuit board substrate only occupies the space on one side of the copper foil, the other side is usually air, and the er is slightly smaller than 4.4, therefore, it is preferable to make l2+l3＝24mm。
The length of the second grounding arm member H is most suitably l35mm, corresponding to2＝19mm。
In particular, the line width of the feed line F is 0.7mm, and the line width of the second ground arm member H is 6 times l1Above, 5 mm.
The length of the feeder line F is l4The following relationship is satisfied: 1mm is less than or equal to l4Less than or equal to 10mm, especially for ensuring the neat structure of the antenna3And l4Are of the same length, i.e. /)4＝5mm。
Generally, the radiator L plus the feeder F branch presents the capacitive property on the working frequency, while the feeder F, the first grounding arm member S and the second grounding arm member H branch presents the inductive property, and by the design, the reactive power properties generated by the two are opposite, and are partially offset, so that the far field radiation efficiency of the antenna is improved, the input reactance of the antenna is 0, and the input resistance is 50 Ω.
And an impedance matching network 2 is arranged in the projection area of the feeder line F entering the ground plane G. Typically, a set of capacitive-inductive networks is provided for impedance matching, or transmission line impedance transformation, as the feed line F enters the projected area of the ground plane G. Transmission line impedance of Z ═ l1/[w*sqrt(er)]And w is the line width of the impedance matching network 2.
The ground plane G is formed by a large area of copper metallization of the printed circuit board. Copper may be applied only to the upper or lower layer; the upper layer and the lower layer can be coated with copper, and the upper layer and the lower layer are electrically connected with each other through dense conductive through holes to form low impedance.
According to the above-described optimal dimensions, the return loss simulation is performed on the antenna of this embodiment within the 2.4-2.48HGz frequency band, i.e., the WiFi frequency band fixed by the IEEE802.11 standard, and the simulation result is shown in fig. 3, which shows that the return loss of the antenna is better than-10 dB. For the antennas working in the 4G and 5G frequency bands, only the size of the antenna is different from that of the WiFi antenna, but the structural characteristics of the antenna are the same as those of the WiFi antenna.
Example 2
This embodiment provides an thing networking household electrical appliances, this thing networking household electrical appliances use embodiment 1 the three-dimensional printing fall F antenna, because the first ground arm component S fixed with irradiator L does not fall in the plane that feeder F and irradiator L formed to make the antenna become three-dimensional form, make the plane size of antenna diminish, increased the scope that the antenna can be used, improved the market competitiveness of the thing networking household electrical appliances product that adopts this antenna, the manufacturing cost of this antenna is unchangeable simultaneously.
It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The utility model provides a three-dimensional printing inverted-F antenna, includes irradiator, feeder, first ground connection arm component and second ground connection arm component, its characterized in that: the feeder line is fixed to the radiator, the first ground arm member is fixed to the radiator and does not fall on a plane formed by the feeder line and the radiator, and the second ground arm member is fixed to the first ground arm member.
2. The solid printed inverted-F antenna of claim 1, wherein: the first ground arm member is perpendicular to a plane formed by the feed line and the radiator, and the second ground arm member is parallel to a plane formed by the feed line and the radiator.
3. The solid printed inverted-F antenna of claim 1, wherein: the fixing part of the first grounding arm component and the radiator is at least provided with a metal through hole for realizing the electrical connection of the upper layer and the lower layer of the printed circuit board; or the first grounding arm component is a metal via hole which is arranged on the printed circuit board and used for realizing the electrical connection of the upper layer and the lower layer of the printed circuit board, two ends of the metal via hole are respectively connected with the radiator and the second grounding arm component, and at least one metal via hole is arranged.
4. The solid printed inverted-F antenna of claim 1, wherein: the first grounding arm member has a height of l1The following relationship is satisfied: l is not less than 0.2mm1≤2mm。
5. The solid printed inverted-F antenna of claim 4, wherein: the first groundHeight l of arm member1＝0.8mm。
6. The solid printed inverted-F antenna of claim 1, wherein: the length of the radiator is l2Said second grounded arm member having a length l3The following relationship is satisfied: l2+l3＝0.25*c/[freq*sqrt(er)]，1mm≤l3Less than or equal to 10mm, wherein c is the light speed in vacuum, freq is the central frequency of the antenna, sqrt represents the root number, and er is the relative dielectric constant of the medium.
7. The solid printed inverted-F antenna of claim 6, wherein: length l of the second grounding arm member3＝5mm。
8. The solid printed inverted-F antenna of claim 1, wherein: the length of the feeder line is l4The following relationship is satisfied: 1mm is less than or equal to l4≤10mm。
9. The solid printed inverted-F antenna of claim 1, wherein: and an impedance matching network is arranged in the region where the feeder enters the ground plane projection.
10. An internet of things household appliance is characterized in that: comprising the solid printed inverted-F antenna of any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020567425.1U CN212182545U (en) | 2020-04-16 | 2020-04-16 | Three-dimensional printed inverted-F antenna and Internet-of-things household appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020567425.1U CN212182545U (en) | 2020-04-16 | 2020-04-16 | Three-dimensional printed inverted-F antenna and Internet-of-things household appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212182545U true CN212182545U (en) | 2020-12-18 |
Family
ID=73766415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020567425.1U Expired - Fee Related CN212182545U (en) | 2020-04-16 | 2020-04-16 | Three-dimensional printed inverted-F antenna and Internet-of-things household appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212182545U (en) |
-
2020
- 2020-04-16 CN CN202020567425.1U patent/CN212182545U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP4347567B2 (en) | Wireless terminal with multiple antennas | |
| EP1506594B1 (en) | Antenna arrangement and module including the arrangement | |
| CN102771009B (en) | Antenna using a ground radiator | |
| CN111934089B (en) | Antenna device and mobile terminal | |
| US8581799B2 (en) | Ground radiation antenna | |
| CN213483970U (en) | Electronic device | |
| CN102738580A (en) | Ultra-wideband monopole antenna with expanded horizontal plane open circuit section and semi-oval slot | |
| CN111555019B (en) | Electronic device | |
| JP2004506363A (en) | Wireless terminal | |
| WO2023273604A1 (en) | Antenna module and electronic device | |
| US8604998B2 (en) | Ground radiation antenna | |
| CN212182545U (en) | Three-dimensional printed inverted-F antenna and Internet-of-things household appliance | |
| US20080024370A1 (en) | Device Comprising an Antenna For Exchanging Radio Frequency Signals | |
| CN215299500U (en) | Antenna structure and electronic device | |
| CN212542674U (en) | Dipole antenna and ZigBee module | |
| CN213546564U (en) | Improved structure for isolation among multiple antennas in MIMO system based on PIFA antenna | |
| CN102097682B (en) | Multiband antenna | |
| CN117594986B (en) | Miniaturized multiband antenna | |
| CN218448448U (en) | Broadband Sub-6GHz antenna | |
| CN112952361B (en) | Electronic device | |
| CN218498374U (en) | Serial port gateway antenna | |
| CN220456656U (en) | Antenna structure and electronic equipment | |
| CN108565545B (en) | Tightly coupled strong resonance small antenna | |
| WO2024179404A1 (en) | Antenna structure and electronic device | |
| CN218334305U (en) | Temperature controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20201218 |