CN211507893U - Antenna device, rod antenna, and electronic apparatus - Google Patents

Abstract

The utility model provides an antenna device, antenna device is including presenting a point, antenna device is first radiating element, second radiating element, third radiating element and fourth radiating element still, first radiating element passes through the second radiating element is connected present a point, the third radiating element with fourth radiating element symmetry constitutes the dipole and is located the both sides of second radiating element, the width gradual change of second radiating element makes the second radiating element with the third radiating element and space gradual change between the fourth radiating element. The utility model discloses a comparatively simple structure resonance goes out broadband high frequency.

Description

Antenna device, rod antenna, and electronic apparatus

Technical Field

The utility model relates to an antenna technology field especially relates to an antenna device, rod-shaped antenna and electronic equipment.

Background

The age of 5G, the fifth generation mobile communication technology (5 generation mobile networks) has come. The performance goals of 5G are high data rates, reduced latency, energy savings, reduced cost, increased system capacity, and large-scale device connectivity. One of the keys of the 5G implementation is the antenna structure design, however, the current antenna has narrow bandwidth, and a complex structure is required to implement high-frequency resonance.

SUMMERY OF THE UTILITY MODEL

In view of the above, in order to solve one of the technical problems in the related art to some extent, it is necessary to provide an antenna device, a rod antenna, and an electronic apparatus, which resonate a broadband high frequency by a relatively simple structure.

The utility model provides an antenna device, antenna device is including presenting a point, antenna device is first radiating element, second radiating element, third radiating element and fourth radiating element still, first radiating element passes through the second radiating element is connected present a point, the third radiating element with fourth radiating element symmetry constitutes the dipole and is located the both sides of second radiating element, the width gradual change of second radiating element makes the second radiating element with the third radiating element and space gradual change between the fourth radiating element.

Further, the width of the second radiation unit is gradually reduced from one end close to the feed point to one end close to the first radiation unit.

Further, the first radiation unit comprises an asymmetric structure directly connected with the second radiation unit and a symmetric structure connected with the asymmetric structure, high-frequency resonance is optimized through the asymmetric structure, and a low frequency band is adjusted through the symmetric structure.

Further, the top of the symmetrical structure is rounded.

Furthermore, two sides of the first radiating element are provided with copper exposing areas so as to connect the antenna branches through the copper exposing areas.

Further, the third radiation unit and the fourth radiation unit each include a first radiation subunit located outside the second radiation unit and a second radiation subunit connected to the first radiation subunit, where the second radiation subunit is located outside the first radiation subunit.

Further, a part of the inner side of the second radiating subunit is provided with a slot.

Furthermore, the third radiation unit and the fourth radiation unit both further include a third radiation subunit connected to the second radiation subunit, the third radiation subunit extends in a direction away from the first radiation unit, and a cavity for accommodating the feed point is formed between the two third radiation subunits.

The utility model also provides a rod antenna, it includes antenna device.

The utility model discloses still an electronic equipment, it includes antenna device.

According to the above technical scheme, the utility model discloses can connect first radiating element through the second radiating element of width gradual change, the adjustable low frequency channel of first radiating element to arrange third and fourth radiating element in second radiating element's both sides, third radiating element and fourth radiating element form the dipole, the space gradual change between the second radiating element of gradual change and the third radiating element, thereby adjust impedance, second radiating element produces the coupling effect with the dipole, produce the high frequency, can realize 1GHz-6 GHz's resonance.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is an enlarged view of fig. 1 at M.

The following detailed description of the invention will be further described in conjunction with the above-identified drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention. It is to be understood that the drawings are designed solely for the purposes of illustration and description and not as a definition of the limits of the invention. The connection relationships shown in the drawings are for clarity of description only and do not limit the manner of connection.

It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It should also be noted that, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly and can include, for example, fixed connections, removable connections, or integral connections; either mechanically or electrically, and may be internal to both elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

It should be further noted that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 1 and 2, an embodiment of the present invention provides an antenna device 100, which can be applied in a rod antenna as an internal radiator and can be used as antennas such as WIFI6, Sub6G, NBIOT, GPRS, LTE, WIFI, GPS, BT, etc., of course, the present invention provides an antenna device 100 that can also be connected to a feeder or a motherboard separately and used as an internal antenna of an electronic device.

In the present embodiment, the overall shape of the antenna device 100 is substantially a vertical long bar. Specifically, the antenna device 100 includes a feed point 60, a first radiation unit 10, a second radiation unit 20, a third radiation unit 30, and a fourth radiation unit 40, which are formed on a substrate 50.

Wherein the first radiating element 10 is connected to the feed point 60 through the second radiating element 20, the third radiating element 30 and the fourth radiating element 40 form a dipole symmetrically with respect to a vertical symmetry line P and are located at two sides of the second radiating element 20, and the feed point 60 is connected to the feed point 60, and the feed point 60 is located on the vertical symmetry line P.

The second radiation unit 20 has a thin strip structure and a gradually changing width, so that the gap D1 between the second radiation unit 20 and the third and fourth radiation units 30 and 40 gradually changes. In the present embodiment, the width of the second radiating element 20 gradually decreases from the end close to the feed point 60 to the end close to the first radiating element 10, and the gap D1 gradually increases. In this way, the gaps D1 between the second radiation element 20 and the third radiation element 30 and between the second radiation element 20 and the fourth radiation element 40 with gradually changed widths are gradually changed, so that impedance is adjusted, the second radiation element 20 and a dipole generate a coupling effect, a high frequency is generated, and resonance of 1GHz-6GHz can be realized.

The first radiating element 10 comprises an asymmetric structure 11 directly connected to the second radiating element 20 and a symmetric structure 12 connecting the asymmetric structure 11. The symmetric structure 12 is symmetric with respect to a vertical symmetry line P. The asymmetric structure 11 is embodied to include only radiating portions located on the left or right side of the vertical symmetry line P, and the other side is substantially aligned with the vertical symmetry line P. The other side of the asymmetric structure 11 is gradually flared upwards so that the asymmetric structure 11 is gradually widened.

The high frequency resonance can be optimized by the asymmetric structure 11, and the low frequency band, such as 700-. The top of the symmetrical structure 12 is rounded to facilitate low frequency bandwidth.

In the present embodiment, in order to facilitate additional adjustment of polarization and optimization of directivity of the antenna, the first radiating element 10 has copper exposed regions 13 on both sides thereof, and the copper exposed regions 13 can be used to connect antenna branches, thereby achieving adjustment of polarization and optimization of directivity of the antenna.

In the present embodiment, the third radiation unit 30 and the fourth radiation unit 40 are symmetrical, and each of the third radiation unit 30 and the fourth radiation unit 40 includes a first radiation subunit 31 located outside the second radiation unit 20, a second radiation subunit 32 connected to the first radiation subunit 31, and a third radiation subunit 33 connected to the second radiation subunit 32.

Specifically, the first radiation subunit 31 is connected to the feed point 60, and gradually extends upward along the outer side edge of the second radiation subunit 20, and approximately the end portion of the second radiation subunit 20 (i.e. the end portion connected to the first radiation subunit 10) is bent downward and extends to the feed point 60, so that the second radiation subunit 32 is located outside the first radiation subunit 31, a gap is formed between the two, and the second radiation subunit 32 continues to extend downward to form the third radiation subunit 33.

A part of the inner side of the second radiating subunit 32 is provided with a slot 321 to increase the width of the gap between the part of the second radiating subunit 32 and the first radiating subunit 31, so as to obtain two gaps with different widths, including a wide slot (slot position) with a width of D3 and a narrow slot (slot not slotted) with a width of D2.

A cavity 34 is formed between the third radiating subunit 33 of the third radiating unit 30 and the third radiating subunit 33 of the fourth radiating unit 40, and the feed point 60 is accommodated in the cavity 34, so that the influence of the surface current of the feed line connected to the feed point 60 on the array can be limited.

Synthesize above structure, the utility model discloses the antenna device that embodiment provided has characteristics such as the commonality is strong, bandwidth broad, the directionality is good, the gain is high, and maximum gain can reach 8dB at least, and the frequency bandwidth can reach 5.5G at least, can wide application in each field.

Throughout the description and claims of this application, the words "comprise/comprises" and the words "have/includes" and variations of these are used to specify the presence of stated features, values, steps or components but do not preclude the presence or addition of one or more other features, values, steps, components or groups thereof.

Some features of the invention, which are, for clarity, described in the context of separate embodiments, may also be provided in combination in a single embodiment. Conversely, certain features of the invention, which are, for brevity, described in the context of a single embodiment, may also be provided separately or in any suitable combination in different embodiments.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention should be included in the present invention.

Claims (10)

1. The antenna device comprises a feed point and is characterized in that the antenna device further comprises a first radiating element, a second radiating element, a third radiating element and a fourth radiating element, wherein the first radiating element is connected with the feed point through the second radiating element, the third radiating element and the fourth radiating element symmetrically form a dipole and are positioned on two sides of the second radiating element, and the second radiating element is gradually changed in width so that gaps among the second radiating element, the third radiating element and the fourth radiating element are gradually changed.

2. The antenna device according to claim 1, wherein the width of the second radiating element is gradually smaller from an end near the feed point to an end near the first radiating element.

3. The antenna device according to claim 1, wherein the first radiating element includes an asymmetric structure directly connected to the second radiating element and a symmetric structure connected to the asymmetric structure, through which high frequency resonance is optimized, through which a low frequency band is adjusted.

4. The antenna device according to claim 3, characterized in that the top of the symmetrical structure is rounded.

5. The antenna device of claim 1, wherein the first radiating element has copper exposed areas on both sides thereof for connecting the antenna branches through the copper exposed areas.

6. The antenna device according to any of claims 1-5, wherein the third and fourth radiating elements each comprise a first radiating sub-element located outside the second radiating element and a second radiating sub-element connected to the first radiating sub-element, wherein the second radiating sub-element is located outside the first radiating sub-element.

7. The antenna device according to claim 6, characterized in that a part of the inner side of the second radiating subunit is slotted.

8. The antenna device according to claim 6, wherein each of the third and fourth radiation units further includes a third radiation subunit connected to the second radiation subunit, the third radiation subunit extends away from the first radiation unit, and a cavity for accommodating the feed point is formed between the two third radiation subunits.

9. A rod antenna, characterized in that it comprises an antenna device according to any of claims 1-8.

10. An electronic device, characterized in that it comprises an antenna arrangement according to any of claims 1-8.

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