CN115207605A - Positioning antenna and electronic device - Google Patents

Positioning antenna and electronic device Download PDF

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Publication number
CN115207605A
CN115207605A CN202110382275.6A CN202110382275A CN115207605A CN 115207605 A CN115207605 A CN 115207605A CN 202110382275 A CN202110382275 A CN 202110382275A CN 115207605 A CN115207605 A CN 115207605A
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CN
China
Prior art keywords
antenna
antenna element
radiating edge
positioning
ground terminal
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Pending
Application number
CN202110382275.6A
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Chinese (zh)
Inventor
梅波
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Guangdong Genius Technology Co Ltd
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Guangdong Genius Technology Co Ltd
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Publication date
Application filed by Guangdong Genius Technology Co Ltd filed Critical Guangdong Genius Technology Co Ltd
Priority to CN202110382275.6A priority Critical patent/CN115207605A/en
Publication of CN115207605A publication Critical patent/CN115207605A/en
Pending legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/273—Adaptation for carrying or wearing by persons or animals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them

Abstract

The application discloses location antenna and electronic equipment, location antenna include an antenna floor to and erect and locate the first antenna element on the plane on antenna floor place, first antenna element is located the first side on antenna floor, first antenna element has the feed end that is used for inserting the signal of telecommunication, location antenna still includes second antenna element, second antenna element erects and locates on the plane, be located the second side adjacent with the first side on antenna floor, second antenna element configure to and produce coupling current with first antenna element coupling, in order to increase the radiating area when location antenna resonance is near the work frequency point, and adjust the radiation direction when location antenna resonance is near the work frequency point; also, the two antenna elements resonate at the same time, respectively, thereby increasing the antenna bandwidth.

Description

Positioning antenna and electronic device
Technical Field
The application belongs to the technical field of antennas, and particularly relates to a directional diagram adjustable antenna and electronic equipment.
Background
In the field of wearable devices, due to the influence of the use scene of the devices, the directivity of the positioning antenna has a great influence on the positioning effect of the devices. For example, a smart watch or a bracelet, in order to obtain a better positioning effect, the maximum radiation direction of the positioning antenna needs to be opposite to the sky in a vertical hand state. However, in the design of actual products, due to the structural design, the directional diagram of the positioning antenna is often difficult to realize, so that the positioning effect of the whole machine cannot meet the requirement; in addition, as the antennas are close to electronic devices such as a camera and a loudspeaker on the wearable device, the radiation performance of the antennas is influenced; meanwhile, with the development of Global Navigation Satellite Systems (GNSS) such as beidou, galileo, glonass, etc., the bandwidth requirement for GNSS antennas is also higher and higher, and the traditional narrow-band antenna is difficult to cover such a wide bandwidth.
Disclosure of Invention
An object of the application is to provide a location antenna and electronic equipment, aim at solving current electronic equipment because electronic device causes the radiating efficiency poor to the influence of antenna, and the directionality is not good to the bandwidth is difficult to satisfy the demand problem.
A first aspect of an embodiment of the present application provides a positioning antenna, including: an antenna floor to and found first antenna element on antenna floor place plane, first antenna element is located the first side on antenna floor, first antenna element has the feed end that is used for inserting the signal of telecommunication, location antenna still includes second antenna element, second antenna element sets up on the plane, is located antenna floor with the adjacent second side in first side, second antenna element configure into with first antenna element coupling produces coupling current, in order to increase the area of radiation when location antenna resonance is near the work frequency point, and the adjustment the radiation direction when location antenna resonance is near the work frequency point.
The positioning antenna feeds power to the first antenna unit by arranging the second antenna unit on one side of the first antenna unit, and current of the first antenna unit is coupled to the second antenna unit due to the coupling effect between the two antennas, so that the radiation area of the whole positioning antenna is the superposition of radiation of the two antenna units and is far larger than that of the first antenna unit through the coupling effect, and the radiation direction of the whole antenna can be changed and controlled; moreover, the newly added second antenna unit can avoid the influence of a metal device at the first antenna unit, so that the radiation efficiency of the antenna is improved; also, the two antenna elements resonate simultaneously and respectively, thereby increasing the bandwidth of the antenna.
In one embodiment, the first antenna element comprises a first radiating edge, the second antenna element comprises a second radiating edge for coupling with the first radiating edge, and the length of the first radiating edge and the length of the second radiating edge both correspond to 1/4 of the operating wavelength of the positioning antenna.
In one embodiment, the first antenna unit further includes a feeding portion having the feeding end, and a first grounding portion, and a distance from the feeding portion to a distal end of the first radiating edge is smaller than or greater than a distance from the first grounding portion to a distal end of the first radiating edge.
In one embodiment, the second antenna unit is an inverted F-shaped antenna, the second antenna unit further includes a second ground terminal and a third ground terminal, the second ground terminal is close to the end of the first radiating edge, the end of the second radiating edge is far from the end of the first radiating edge, and a distance from the second ground terminal to the end of the second radiating edge is greater than a distance from the third ground terminal to the end of the second radiating edge.
In one embodiment, the second antenna unit is an inverted L-shape or a T-shape, and further includes a second ground terminal, and a distance from the second ground terminal to a terminal of the second radiating edge is greater than or less than a distance from the second ground terminal to a start of the second radiating edge.
In one embodiment, the first antenna element and the second antenna element are respectively connected with two adjacent corners of the antenna floor.
In one embodiment, an inductive device is loaded on the first antenna unit and/or the second antenna unit.
In one embodiment, the first antenna element and the second antenna element are at an angle in a range of 75 ° to 105 °.
In one embodiment, a coupling gap is formed between the end of the first radiating edge and the beginning of the second radiating edge, and the coupling gap is adjusted to adjust the coupling degree of the first antenna element and the second antenna element.
A second aspect of the embodiments of the present application provides an electronic device, which includes a circuit board and the above positioning antenna, where a feeding end of the first antenna unit is connected to a radio frequency port of the circuit board.
The electronic device adopts all the embodiments of the positioning antenna, so that at least all the beneficial effects of the embodiments are achieved, and details are not repeated herein.
Drawings
Fig. 1 is a schematic structural diagram of a positioning antenna according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a positioning antenna according to a second embodiment of the present invention;
fig. 3 is a schematic structural diagram of a positioning antenna according to a third embodiment of the present invention;
fig. 4A is a radiation pattern of a first antenna element without a second antenna element;
fig. 4B is a radiation pattern of a positioning antenna according to an embodiment of the present invention;
fig. 5 is a comparison graph of S-parameter curves of the positioning antenna provided by the embodiment of the invention and only the first antenna unit;
fig. 6 is a graph comparing radiation efficiency curves of only the first antenna element and the positioning antenna provided by the embodiment of the present invention.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of and not restrictive on the broad application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present application and to simplify description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
Referring to fig. 1, a positioning antenna provided in the embodiment of the present application includes an antenna floor 100, and a first antenna unit 11 vertically disposed on a plane where the antenna floor 100 is located, where the first antenna unit 11 is located on a first side of the antenna floor 100, and the first antenna unit 11 has a feeding end 112a for accessing an electrical signal. The first antenna element 11 is generally a main antenna of an electronic device, but for various reasons, the first antenna element 11 cannot meet the requirements of maximum radiation direction, radiation performance and bandwidth, and therefore, the second antenna element 12 capable of generating a coupling effect with the first antenna element 11 is further configured to solve the above requirements in the embodiments of the present application.
In this embodiment, the second antenna unit 12 is vertically disposed on the plane of the antenna floor 100 and located on a second side of the antenna floor 100 adjacent to the first side, and the second antenna unit 12 is configured to couple with the first antenna unit 11 to generate a coupling current, so as to increase a radiation area when the positioning antenna resonance is near the working frequency point (for example, 1.575 GHz), and adjust a radiation direction when the positioning antenna resonance is near the working frequency point. Due to the coupling effect between the two antenna units, the current of the first antenna unit 11 can be coupled to the second antenna unit 12, so that the radiation area of the whole positioning antenna is the superposition of the radiation of the two antenna units and is far larger than the radiation area of only one first antenna unit 11, and the radiation direction of the whole antenna is adjusted and controlled to meet the requirement of the directivity of the maximum radiation direction; moreover, the added second antenna unit 12 can avoid the influence of the electronic device 10 at the first antenna unit 11, thereby improving the radiation efficiency of the whole antenna; also, the two antenna elements are simultaneously and separately resonant, thereby also increasing the overall antenna bandwidth.
In one embodiment, the antenna floor 100 is rectangular, rounded rectangle or other polygonal (rounded) shape, and has at least one side 110 and two corners 101, 102 at two ends of the side, and the first antenna element 11 and the second antenna element 12 are respectively connected to two adjacent corners 101, 102 of the antenna floor 100, so that a condition of a coupling effect between the first antenna element 11 and the second antenna element 12 can be formed, and a coupling degree can be improved.
In one embodiment, the first antenna element 11 comprises a first radiating edge 111, the second antenna element 12 comprises a second radiating edge 121 for coupling with the first radiating edge 111, and the length of the first radiating edge 111 and the length of the second radiating edge 121 both correspond to, i.e. are substantially equal to, 1/4 of the operating wavelength of the positioning antenna. When the positioning antenna needs to generate resonance near the working frequency point, the first antenna unit 11 and the second antenna unit 12 can generate resonance respectively, so that the bandwidth of the whole positioning antenna is increased.
In addition, a coupling gap is formed between the end 111A of the first radiating edge 111 and the start 121A of the second radiating edge 121, and the coupling gap is adjusted to adjust the coupling degree of the first antenna element 11 and the second antenna element 12. The first antenna element 11 and the second antenna element 12 are fed in a slot coupling manner, the second antenna element 12 induces the radiation field of the first antenna element 11 to generate current, the slot coupling feeding is used for matching and tuning more easily, and the coupling degree can be adjusted by adjusting the distance of the coupling slots, so that the matching and tuning of the antenna are realized.
In one embodiment, the first antenna unit 11 further includes a feeding portion 112 having a feeding end 112a and a first grounding portion 113, and the feeding portion 112 is located at a distance from the end 111A of the first radiating edge 111 smaller than or greater than the distance from the first grounding portion 113 to the end 111A of the first radiating edge 111. In the example of fig. 1, the distance from the feeding portion 112 to the end of the first radiation edge 111 is smaller than the distance from the first ground portion 113 to the end 111A of the first radiation edge 111; in the example of fig. 2 and 3, the distance from the power feeding portion 112 to the end 111A of the first radiating side 111 is greater than the distance from the first ground portion 113 to the end 111A of the first radiating side 111. Two end portions of the first antenna element 11 connected to the side of the first radiating edge 111 may be used as the first grounding portion 113 for grounding and the other as the feeding portion 112 for feeding according to current distribution, size or excellent performance, and the performance of the two embodiments is similar, and the two embodiments may be selected according to the requirement when applied, and are not limited herein.
Optionally, the first antenna element 11 extends along a first direction x, the second antenna element 12 extends along a second direction y, and an angle a between the first direction x and the second direction y ranges from 45 ° to 135 °, so that good radiation efficiency can be generated, and a required bandwidth and a maximum radiation direction can be met. Relatively, the performance of the included angle a is better when the included angle a is 75-105 degrees.
Referring to fig. 1, the second antenna unit 12 is T-shaped, the second antenna unit 12 has a second radiating edge 121 and a second grounding end 122, the second grounding end 122 is close to the end 111A of the first radiating edge 111 of the first antenna unit 11, and the end 121B of the second radiating edge 121 is far away from the end 111A of the first radiating edge 111 of the first antenna unit 11. Optionally, the second ground terminal 122 may also be far from the end 111A of the first radiating edge 111 of the first antenna element 11.
Referring to fig. 2, in one embodiment, the second antenna unit 12 is an inverted-F type, the second antenna unit 12 further includes a second ground terminal 122 and a third ground terminal 123, the second ground terminal 122 is close to the end 111A of the first radiating edge 111, the end 121B of the second radiating edge 121 is far away from the end 111A of the first radiating edge 111, and a distance from the second ground terminal 122 to the end 121B of the second radiating edge 121 is greater than a distance from the third ground terminal 123 to the end 121B of the second radiating edge 121.
Referring to fig. 3, the second antenna unit 12 is of an inverted-L shape, the second antenna unit 12 has a second radiating edge 121 and a second ground 122, the second ground 122 is close to the end 111A of the first radiating edge 111 of the first antenna unit 11, and the end 121B of the second radiating edge 121 is far away from the end 111A of the first radiating edge 111 of the first antenna unit 11. Optionally, the second ground terminal 122 may also be far from the end 111A of the first radiating edge 111 of the first antenna element 11.
In other words, when the second antenna unit 12 is in an inverted L shape or a T shape, the distance from the second ground terminal 122 to the end 121B of the second radiating edge 121 may be greater than or less than the distance from the start 121A of the second radiating edge 121. In other embodiments, the second antenna element 12 may have other shapes, such as an inverted E shape. In addition, the inductive device is loaded on the first antenna unit 11 and/or the second antenna unit 12, which is beneficial to increasing the effective length of the antenna, so as to reduce the area of the antenna, and is beneficial to miniaturization of products.
Since the electronic device 10 such as a camera and a speaker is closer to the first antenna element 11, the radiation performance of the first antenna element 11 is affected. The progress of the technical scheme of the application is illustrated by a simulation test chart of generating resonance near a working frequency point of 1.575 GHz.
As shown in fig. 4A, it is shown that when the second antenna element 12 is not provided, the radiation pattern of only the first antenna element 11 is pointed in the theta (i.e., θ) =90 ° direction as indicated by the arrow when phi =0 ° section. As shown in fig. 4B, it is shown that after the second antenna element 12 is disposed, the radiation pattern of the whole positioning antenna is such that when phi =0 ° cut plane, the maximum radiation direction of the antenna is directed to theta (i.e. θ) =0 ° direction as indicated by an arrow. It can be seen that the orientation of the whole positioning antenna can be changed after the second antenna element 12 is coupled to the first antenna element 11.
A curve L1 in fig. 5 is an S-parameter graph of only the first antenna element 11 when the second antenna element 12 is not provided, and a curve L2 is an S-parameter graph of the entire positioning antenna after the second antenna element 12 is provided. It can be seen that both the second antenna element 12 and the first antenna element 11 can resonate at around 1.575GHz to increase the bandwidth of the overall antenna.
A curve L3 in fig. 6 is a radiation efficiency graph of only the first antenna element 11 when the second antenna element 12 is not provided, and the efficiency of the entire antenna is 57.4% in the vicinity of the resonance point; the curve L4 is a radiation efficiency curve diagram of the whole positioning antenna after the second antenna unit 12 is arranged, and the efficiency of the whole positioning antenna is 76.9% near the resonance point, so that it can be seen that the radiation efficiency of the whole positioning antenna is obviously improved after the second antenna unit 12 is arranged.
A second aspect of the embodiments of the present application provides an electronic device, which includes a circuit board and the positioning antenna described above, wherein the feeding end 112a of the first antenna unit 11 is connected to a radio frequency port of the circuit board.
The electronic device adopts all embodiments of the positioning antenna, so that at least all the beneficial effects of the embodiments are achieved, and further description is omitted. The electronic equipment positioning antenna has a better maximum radiation direction, can better receive navigation satellite signals, has larger bandwidth and higher antenna radiation efficiency, and can meet higher requirements, thereby effectively improving the positioning accuracy of the positioning antenna of the electronic equipment.
The above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present application and are intended to be included within the scope of the present application.

Claims (10)

1. The utility model provides a positioning antenna, includes an antenna floor, and locates immediately first antenna element on the plane of antenna floor place, first antenna element is located the first side on antenna floor, first antenna element has the feed end that is used for inserting the signal of telecommunication, a serial communication port, positioning antenna still includes second antenna element, second antenna element sets up on the plane, is located on the antenna floor with the adjacent second side in first side, second antenna element configure into with first antenna element coupling produces coupling current, in order to increase the radiating area of positioning antenna resonance when near the work frequency point, and the adjustment the radiation direction of positioning antenna resonance when near the work frequency point.
2. The positioning antenna of claim 1, wherein the first antenna element includes a first radiating edge, the second antenna element includes a second radiating edge for coupling with the first radiating edge, and a length of the first radiating edge and a length of the second radiating edge each correspond to 1/4 of an operating wavelength of the positioning antenna.
3. The positioning antenna of claim 2, wherein the first antenna element further comprises a feeding portion having the feeding end and a first ground portion, and wherein a distance from the feeding portion to the end of the first radiating edge is smaller or larger than a distance from the first ground portion to the end of the first radiating edge.
4. The positioning antenna of claim 3, wherein the second antenna element is of an inverted-F shape, the second antenna element further comprises a second ground terminal and a third ground terminal, the second ground terminal is close to the end of the first radiating edge, the end of the second radiating edge is far away from the end of the first radiating edge, and the distance from the second ground terminal to the end of the second radiating edge is greater than the distance from the third ground terminal to the end of the second radiating edge.
5. The positioning antenna of claim 3, wherein the second antenna element is of an inverted L-shape or T-shape, and further comprising a second ground terminal, and wherein a distance from the second ground terminal to the end of the second radiating edge is greater than or less than a distance from the second ground terminal to the beginning of the second radiating edge.
6. The positioning antenna according to claim 4 or 5, wherein the first antenna element and the second antenna element are connected to two adjacent corners of the antenna floor, respectively.
7. The positioning antenna of any of claims 1-5, wherein an inductive device is loaded on the first antenna element and/or the second antenna element.
8. The positioning antenna of any of claims 1-5, wherein the first antenna element and the second antenna element are at an angle, the angle being in a range of 75 ° to 105 °.
9. The positioning antenna of claim 2, wherein a coupling gap is formed between an end of the first radiating edge and a start of the second radiating edge, and the coupling gap is adjusted to adjust a coupling degree of the first antenna element and the second antenna element.
10. An electronic device, characterized in that: comprising a circuit board and a positioning antenna according to any of claims 1-9, the feeding end of the first antenna element being connected to a radio frequency port of the circuit board.
CN202110382275.6A 2021-04-09 2021-04-09 Positioning antenna and electronic device Pending CN115207605A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110382275.6A CN115207605A (en) 2021-04-09 2021-04-09 Positioning antenna and electronic device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110382275.6A CN115207605A (en) 2021-04-09 2021-04-09 Positioning antenna and electronic device

Publications (1)

Publication Number Publication Date
CN115207605A true CN115207605A (en) 2022-10-18

Family

ID=83571037

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110382275.6A Pending CN115207605A (en) 2021-04-09 2021-04-09 Positioning antenna and electronic device

Country Status (1)

Country Link
CN (1) CN115207605A (en)

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