CN210006904U - Antenna and electronic device - Google Patents
Antenna and electronic device Download PDFInfo
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- CN210006904U CN210006904U CN201920773053.5U CN201920773053U CN210006904U CN 210006904 U CN210006904 U CN 210006904U CN 201920773053 U CN201920773053 U CN 201920773053U CN 210006904 U CN210006904 U CN 210006904U
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Abstract
The utility model provides a kind of antennas, the antenna includes the base plate, base plate side is equipped with radiation arm, coupling arm, transmission arm and feed end, radiation arm, coupling arm, transmission arm electricity are connected in the matching end of crossing, radiation arm includes radiation portion and signal portion, the end and the signal portion electricity of radiation portion are connected, the end of radiation portion extends to the matching end of crossing in addition, the open end that the radiation portion was kept away from to the signal portion is circular-arc, radiation arm extends directional coupling arm to form circular-arc region between radiation portion and the coupling arm, form the passageway between radiation portion and the coupling arm, passageway intercommunication circular-arc region, the feed end is located the transmission arm and is kept away from the end that matches the end of crossing, the utility model also provides kinds of electronic equipment.
Description
Technical Field
The utility model relates to the field of communications, especially, relate to kinds of antennas and electronic equipment.
Background
The conventional small antenna, although the size of the antenna is reduced to , the size of the antenna is reduced, the performance of the antenna is limited, and the signal receiving and transmitting are not stable.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides kinds of antennas and electronic equipment, can satisfy the demand of equipment to small-size antenna performance.
In order to achieve the purpose, the utility model provides an kinds of antennas, the antenna includes the base plate, base plate side is equipped with radiation arm, coupling arm, transmission arm and feed end, radiation arm, coupling arm, transmission arm electricity are connected in the matching intersection end, radiation arm includes radiation portion and signal portion, the end of radiation portion is connected with signal portion electricity, another end of radiation portion extends to the matching intersection end, the open end that signal portion kept away from radiation portion is circular-arc, radiation arm extends to coupling arm, so that form circular-arc region between radiation portion and the coupling arm, form the passageway between radiation portion and the coupling arm, the passageway communicates circular-arc region, the feed end is located transmission arm is kept away from the end that matches intersection end.
, the antenna further includes a ground terminal disposed at an edge of the substrate.
, the radiating portion width is less than the diameter of the signal portion.
, the radiating portion includes a th radiating section and a second radiating section, the th radiating section is connected to the signal portion, the th end of the th radiating section is connected to the second radiating section, and the th end of the second radiating section is connected to the matched junction end.
, the th radiating segment gradually decreases in width toward the second radiating segment.
, the second radiating section gradually increases in width toward the mating junction.
, the coupling arm and the transmission arm form an L-shaped structure.
Further , the area of the arc-shaped region is larger than the area of the signal section.
, the distance from the top of the signal section to the matching junction along the radiating section is of the wavelength of its operating band.
The utility model discloses still provide kinds of electronic equipment, electronic equipment still includes above-mentioned any the antenna.
The utility model has the advantages of, can satisfy the antenna function of wiFi and bluetooth, use the body settings that the base plate covered copper, flexible FPC antenna material cost that has relatively can reduce a lot, and the space that occupies equipment also significantly reduces in the performance, the gain of antenna can reach 2.5dBi, and the standing-wave ratio also can reach within 1.3, and the antenna bandwidth can reach 340MHz, can satisfy equipment to antenna space and performance demand.
Drawings
Fig. 1 is a schematic diagram of an antenna structure according to an embodiment of the present invention ;
fig. 2 is a graph showing the variation of the standing-wave ratio of the antenna according to the embodiment of the present invention;
fig. 3 is a graph showing the variation of the input reflection coefficient of the antenna according to the embodiment of the present invention;
fig. 4 is a smith chart of the antenna impedance according to the embodiment of the present invention.
The objects, features and advantages of the present invention will be described in connection with the embodiments illustrated in the accompanying drawings, in which reference should be made to the accompanying drawings for a further .
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following detailed description of the present invention proceeds to steps with reference to the accompanying drawings and embodiments, it should be understood that the embodiments described herein are only used for explaining the present invention, and are not intended to limit the present invention.
Referring to fig. 1, fig. 1 shows a antenna 100 according to an embodiment of the present invention, the antenna 100 includes a substrate 10 and a copper foil layer covering an side of the substrate 10, the copper foil layer includes a radiation portion 20, a coupling arm 30, a transmission arm 40 and a feeding end 50, the radiation portion 20, the coupling arm 30 and the transmission arm 40 are electrically connected to a matching intersection end 60, the radiation portion 20 includes a radiation portion 21 and a signal portion 22, a end of the radiation portion 21 is electrically connected to the signal portion 22, a end of the radiation portion 21 extends to the matching intersection end 60, an opening end of the signal portion 22 away from the radiation portion 21 is arc-shaped, the radiation arm 20 extends toward the coupling arm 30 to form an arc-shaped region 70 between the radiation portion 20 and the coupling arm 30, the feeding end 50 is disposed at an end end of the transmission arm 40 away from the matching intersection end 60, the radiation portion 21 and the coupling arm 30 form a channel, the channel communicates with the arc-shaped region 70, the radiation portion 21 includes a radiation section and a second radiation section 211, a radiation section 212, the radiation section 211 is connected to the feeding end and the radiation section , and the radiation section 211 is connected to the radiation section .
Preferably, the radiating portion 20 has a width less than the diameter of the signal portion 22. Specifically, the radiation portion 21 of the radiation arm 20 is used for transmitting the electromagnetic wave received by the signal portion 22 or the data transmitted by the transmission feed terminal 50.
Specifically, the width a of the junction between the th radiating section 211 and the signal section 22 is 1.8 millimeters (mm), and the width b of the second radiating section 212 and the mating junction 60 is 1 mm.
In the present embodiment, the substrate 10 is a copper clad laminate, and a copper clad is formed by copper-cladding on the substrate 10, thereby obtaining the radiation arm 20, the coupling arm 30, the transmission arm 40, and the feeding terminal 50. The radiation arm 20 is used for transceiving electromagnetic waves, and the coupling arm 30 is connected to the matching junction 60 and is used for adjusting the impedance of the matching junction 60 so as to maximize the efficiency of the antenna. The transmission arm 40 is used to receive an electromagnetic wave signal received by the radiation arm 20 or transmit an electromagnetic wave signal generated by a device using the antenna 100 to the radiation arm 20. The signal portion 22 of the radiating arm 20 is arc-shaped, and the bandwidth of the antenna is increased through the arc-shaped opening end, so that the data transmission capability of the antenna is improved. The feeding terminal 50 is an interface for connecting the antenna to a device using the antenna 100, and transmits or receives data through the feeding terminal 50. In the present embodiment, the circular arc-shaped radius R1 of the signal part 22 is 1.84 millimeters (mm), the radius R2 of the circular arc-shaped region 70 is 3.19 millimeters (mm), the shortest distance from the center of the circular arc-shaped region 70 to the coupling arm 30 is c to 2.74 millimeters (mm), the width d of the coupling arm 30 is 0.8 millimeters (mm), and the shortest distance from the center of the circular arc-shaped signal part 22 to the coupling arm 30 is e to 2.49 millimeters (mm).
Preferably, the antenna 100 further includes a ground terminal 80, and the ground terminal 80 is disposed at an edge of a side of the substrate 10. Specifically, the ground terminal 80 is disposed on the edge of the substrate 10 near the side of the feeding terminal 50 to form a loop of the antenna.
Preferably, the area of the arc-shaped region 70 is larger than the area of the signal section 22. The radiating portion 20 is disposed in a bent manner, and specifically, the radiating portion 20 extends from the matching junction end and extends back to the coupling arm along an arc shape so as to bend the signal portion 22 toward the coupling arm 30, thereby reducing the space occupied by the antenna. The arc-shaped area 70 is arc-shaped like the signal part 22, and the arc-shaped area 70 is larger than the signal part 22, so that the signal part 22 is far away from the radiation part 20 connected with the matching junction 60, and the signal transmission of the radiation part 20 is prevented from being interfered by the signal transmitted and received by the signal part 22. Wherein the distance f of the radiating part 20 from the farthest point of the coupling arm 30 is 7.76 millimeters (mm).
Preferably, the coupling arm 30 and the transmission arm 40 form an L-shaped structure. Specifically, the coupling arm 30 and the transmission arm 40 form an angle of 90 degrees.
Preferably, the distance from the top end of the signal portion 22 to the matching intersection end 60 along the radiation portion 20 is quarter of the wavelength of the working frequency band, in this embodiment, the antenna is used for 2.4GHz WIFI and bluetooth transmission, the working frequency bands of the 2.4GHz WIFI antenna and the bluetooth antenna are 2412-2482MHz, and the electrical lengths of the 2.4GH WIFI antenna and the bluetooth antenna are quarter of the wavelength of the working frequency bands.
In the present embodiment, please refer to fig. 2-4:
as shown in the variation graph of the standing wave ratio of the antenna of fig. 2, when the antenna receives an electromagnetic wave signal of 2.4GHz, the standing wave ratio of the antenna 100 can be maintained within 1.3.
As shown in the variation graph of the input reflection coefficient of the antenna in fig. 3, when the antenna receives an electromagnetic wave signal of 2.4GHz, the input reflection coefficient of the antenna 100 is maintained at-22.00 dB, and the reflection coefficient performance is good.
As shown in the smith chart of the antenna impedance of fig. 4, the electronic device using the antenna can achieve the maximum output of power with the output power close to 1 when the antenna receives the electromagnetic wave signal of 2.4 GHz.
The bandwidth of the antenna can also reach 340MHz through measurement, and the data transmission quantity of the antenna is increased.
The antenna of the embodiment can meet the antenna functions of WiFi and Bluetooth, the -body arrangement that the substrate 10 covers copper is adopted, the material cost can be greatly reduced compared with that of the existing Flexible Printed Circuit Board (FPC) antenna, and the occupied space of the device is greatly reduced.
The embodiment also provides electronic devices, the electronic device 200 includes the antenna 100. the electronic device 200 using the antenna 100, the antenna occupies less space of the electronic device, the radiating arm 20 is bent, so that the area of the required space of the antenna is smaller, compared with the prior art of an F-shaped antenna, the requirement of occupying the height of the antenna is smaller, compared with an FPC antenna, the cost of the antenna formed by the substrate is lower, the installation is easier, and the requirement of the existing electronic device with diversified models can be met.
The above is only the preferred embodiment of the present invention, and not the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings or the direct or indirect application in other related technical fields are included in the patent protection scope of the present invention.
Claims (10)
- The type of antenna comprises a substrate and is characterized in that a radiating arm, a coupling arm, a transmission arm and a feeding end are arranged on the side of the substrate , the radiating arm, the coupling arm and the transmission arm are electrically connected to a matching intersection end, the radiating arm comprises a radiating portion and a signal portion, the end of the radiating portion is electrically connected with the signal portion, the other end of the radiating portion extends to the matching intersection end, the opening end, far away from the radiating portion, of the signal portion is in an arc shape, the radiating arm extends to the coupling arm to enable an arc-shaped area to be formed between the radiating portion and the coupling arm, a channel is formed between the radiating portion and the coupling arm and communicated with the arc-shaped area, and the feeding end is arranged at the end, far away from the matching intersection end, of the transmission arm.
- 2. The antenna of claim 1, wherein: the antenna also comprises a grounding end, and the grounding end is arranged at the edge of the substrate.
- 3. The antenna of claim 2, wherein: the width of the radiating portion is smaller than the diameter of the signal portion.
- 4. The antenna of claim 3, wherein the radiating portion comprises an th radiating segment and a second radiating segment, the th radiating segment end is connected to the signal portion, the th radiating segment end is connected to the second radiating segment, and the second radiating segment end is connected to the matching junction end.
- 5. The antenna of claim 4, wherein said th radiating segment tapers in width toward said second radiating segment.
- 6. The antenna of claim 5, wherein: the second radiating section gradually increases in width toward the mating junction.
- 7. The antenna of claim 6, wherein: the coupling arm and the transmission arm form an L-shaped structure.
- 8. The antenna of claim 1, wherein: the area of the arc-shaped region is larger than the area of the signal part.
- 9. The antenna of claim 1, wherein the distance from the top of said signal section along said radiating section to said matching junction is quarter wavelengths of its operating band.
- An electronic device of , further comprising the antenna of any of claims 1-9, wherein the antenna is the antenna of claim .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920773053.5U CN210006904U (en) | 2019-05-27 | 2019-05-27 | Antenna and electronic device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920773053.5U CN210006904U (en) | 2019-05-27 | 2019-05-27 | Antenna and electronic device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210006904U true CN210006904U (en) | 2020-01-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920773053.5U Expired - Fee Related CN210006904U (en) | 2019-05-27 | 2019-05-27 | Antenna and electronic device |
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| Country | Link |
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| CN (1) | CN210006904U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112510353A (en) * | 2020-12-04 | 2021-03-16 | 深圳市海之景科技有限公司 | 5G antenna for communication terminal |
-
2019
- 2019-05-27 CN CN201920773053.5U patent/CN210006904U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112510353A (en) * | 2020-12-04 | 2021-03-16 | 深圳市海之景科技有限公司 | 5G antenna for communication terminal |
| CN112510353B (en) * | 2020-12-04 | 2021-10-29 | 深圳市海之景科技有限公司 | 5G antenna for communication terminal |
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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 |
Granted publication date: 20200131 |
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| CF01 | Termination of patent right due to non-payment of annual fee |