Broadband antenna and communication equipment

Abstract

The utility model relates to a broadband antenna and a communication device. The broadband antenna comprises a feed ground point, a switch feed point and a feed point. The first radiation part is connected with the feeding point and comprises a first extension support arm extending towards a first direction; the second radiation part is connected with the feeding point and comprises a second extension support arm extending from the feeding point to the direction of the first radiation part; the third radiation part is connected with the feeding point; the low-frequency coupling slot is arranged between the feeding point and the switch feeding point and is used for generating a low-frequency bandwidth. The antenna is provided with a main radiating body comprising a first extension support arm, a second radiating part and a third radiating part, the second radiating part and the third radiating part are used for providing medium-high frequency radiation, and meanwhile, a gap is formed between a feeding point and a switch feeding point, so that a very wide low-frequency bandwidth is generated, and the requirement of expanding the bandwidth is further met; the antenna space requirement is reduced, the broadband performance requirement is met, and the antenna can be widely applied to various communication devices.

Description

Technical Field

[0001] The utility model relates to the technical field of communication equipment, in particular to a broadband antenna and communication equipment. Background Art

[0002] Antennas are devices that radiate high-frequency electromagnetic energy into space through metal conductors of various shapes. Antennas with wide bandwidths can be called broadband antennas. The current on the antenna is distributed in a standing wave pattern, and its impedance and directional characteristics change with frequency, so their frequency bands are very narrow, but broadband antennas are required in some communications. Antennas whose directional and impedance characteristics do not change significantly within approximately one octave can be called broadband antennas. However, in the case that existing products are all designed towards miniaturization and the application environment is complex, there is not enough space to set up multiple antenna structures, resulting in the inability to meet some broadband bandwidth requirements. Utility Model Content

[0003] Based on this, it is necessary to provide a broadband antenna and communication equipment to address the problem that existing antennas cannot meet broadband requirements.

[0004] On the one hand, this embodiment provides a broadband antenna, including: a feeding point, a switch feeding point and

[0005] A feeding point, wherein the feeding point is defined with a first direction and a second direction opposite to the first direction;

[0006] A first radiating portion, the first radiating portion is connected to the feeding point and comprises a first extending arm extending in a first direction;

[0007] A second radiating portion for high-frequency radiation, the second radiating portion being connected to the feeding point and comprising a second extending arm extending from the feeding point toward the first radiating portion;

[0008] A third radiating portion for high frequency radiation, wherein the third radiating portion is connected to the feeding point;

[0009] The low-frequency coupling slot is opened between the feed point and the switch feed point to generate a low-frequency bandwidth.

[0010] The feeding point includes a first feeding point and a second feeding point, the first feeding point is arranged on one side of the first direction of the feeding point, and the second feeding point is arranged on one side of the second direction of the feeding point; the first feeding point is a high-frequency parasitic unit of the broadband antenna. The broadband antenna is also provided with a high-frequency coupling slot for generating a high-frequency bandwidth.

[0011] On the other hand, the utility model also provides a communication device, comprising the broadband antenna as described above.

[0012] The broadband antenna provided by the utility model is provided with a main radiator including a first extending arm, a second radiating part and a third radiating part providing medium and high frequency radiation, and a gap is opened between the feeding point and the switch feeding point to produce a very wide low-frequency bandwidth, thereby meeting the demand for expanding the bandwidth, reducing the antenna space demand while meeting the broadband performance requirements, and can be widely used in a variety of communication equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of an embodiment of a broadband antenna of the utility model;

[0014] Figure 2 It is a structural schematic diagram of another embodiment of a broadband antenna of the utility model;

[0015] Figure 3 This is a standing wave return loss impedance diagram of a broadband antenna of the utility model.

[0016] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0017] 1. Feeding point; 2. First feeding point; 3. Second feeding point; 4. Switch feeding point; 5. First radiating part; 6. Second radiating part; 7. Third radiating part; 8. Low-frequency coupling slot; 9. High-frequency coupling slot. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation methods of the utility model are described clearly and completely below in conjunction with the accompanying drawings. Obviously, the specific details described below are only part of the embodiments of the utility model, and the utility model can also be implemented in many other embodiments different from those described here. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work belong to the protection scope of the utility model.

[0019] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0021] In one embodiment, see Figures 1 to 3 As shown, a broadband antenna comprises: a feeding point, a switch feeding point 4, a feeding point 1, a first radiating portion 5, a second radiating portion 6 for high-frequency radiation, a third radiating portion 7 for high-frequency radiation, and a low-frequency coupling slot 8. The feeding point 1 is defined with a first direction and a second direction opposite to the first direction. The first radiating portion 5 is connected to the feeding point 1 and comprises a first extension arm extending in the first direction; wherein the first radiating portion 5 can generate an operating frequency band with a frequency range between 700MHz and 960MHz. The second radiating portion 6 is connected to the feeding point 1 and comprises a second extension arm extending from the feeding point 1 to the direction of the first radiating portion 5 to generate an operating frequency band with a frequency range between 1700MHz and 2170MHz. The third radiating portion 7 is connected to the feeding point 1; the third radiating portion 7 can generate an operating frequency band with a frequency range between 1710MHz and 2170MHz. The low-frequency coupling slot 8 is opened between the feeding point 1 and the switch feeding point 4 to generate a low-frequency bandwidth.

[0022] On the basis of this embodiment, the broadband antenna is further provided with a high-frequency coupling slot 9 for generating a high-frequency bandwidth. Furthermore, a strip-shaped hollow hole is provided beside the first extension arm. A strip-shaped hollow hole is provided beside the third radiation portion 7.

[0023] The broadband antenna provided in this embodiment includes a first radiating portion 5 provided with a first extending arm, a second radiating portion 6 and a third radiating portion 7 providing medium and high frequency radiation. At the same time, a gap is opened between the feeding point 1 and the switch feeding point 4 to produce a very wide low-frequency bandwidth, thereby meeting the demand for expanding the bandwidth, reducing the antenna space requirement while meeting the broadband performance requirements, and can be widely used in various communication equipment.

[0024] In this embodiment, the feeding point includes a first feeding point 2 and a second feeding point 3. The first feeding point 2 is disposed on one side of the first direction of the feeding point 1, and the second feeding point 3 is disposed on one side of the second direction of the feeding point 1. The first feeding point 2 is a high-frequency parasitic unit of a broadband antenna. The high-frequency parasitic unit can generate an operating frequency band ranging from 2500 MHz to 2690 MHz.

[0025] See attached Figure 2 And attached Figure 3As shown, in another embodiment of the utility model, the broadband antenna starts a gap between the feed and the feed ground to produce an ultra-wide low-frequency bandwidth. In this embodiment, it can be a deep slot or a coupling slot. The coverage frequency of the broadband antenna is 700-960MHz & 1710-26900MHz.

[0026] Specifically, the components of the broadband antenna include: a feeding point 1 as an excitation source input, a first feeding point 2 as a high-frequency parasitic unit of the broadband antenna, a second feeding point 3, a switch feeding point 4, a low-frequency coupling slot 8 between the feeding and the feeding ground, a high-frequency coupling slot 9, a first radiating portion 5 as the main radiator of the broadband antenna, a second radiating portion 6 as a medium-high frequency radiating array of the broadband antenna, and a third radiating portion 7 as a medium-high frequency radiating array of the broadband antenna.

[0027] The radiation range covered by the high-frequency parasitic unit of the broadband antenna is between 2500MHZ and 2690MHZ, the radiation range of the first radiation part 5 is between 700MHZ and 960MHZ, the radiation range of the second radiation part 6 is between 1700MHZ and 2170MHZ, and the radiation range of the third radiation part 7 is between 1710MHZ and 2170MHZ. In addition, in this embodiment, the width of the coupling slot gap of the high-frequency coupling slot 9 has a certain influence on the high-frequency bandwidth of the broadband antenna.

[0028] Refer to the attached Figure 2 In this embodiment, the specific dimensions of the broadband antenna are: a is 79.81mm, b is 57.88mm, c is 15.18mm, d is 10.83mm, e is 27.25mm, f is 13.38mm, g is 12.56mm, h is 9.24mm, i is 10.25mm, and the error range of the above dimensions is ±0.1mm. By setting the above specific dimensions, shapes and gaps, the antenna coverage frequency of 700-960MHz & 1710-26900MHz is achieved. Of course, the dimensions of the broadband antenna can also be other, which is not limited to the description in this embodiment.

[0029] In the broadband antenna of this embodiment, a gap is provided between the feed point 1 and the switch feed point 4, so as to generate a wide low-frequency bandwidth, thereby meeting the requirement of expanding the low-frequency bandwidth. The first feed point 2 in the attached figure, as a parasitic unit, plays the role of coupling the antenna feed point and expanding the high-frequency bandwidth, and can be widely used in various communication devices.

[0030] On the other hand, the utility model also provides a communication device, including the broadband antenna described in the above embodiments.

[0031] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0032] The above embodiments only express several implementation methods of the utility model, and the descriptions are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications, substitutions and improvements can be made without departing from the concept of the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model patent should be based on the claims.

Claims

1. A broadband antenna, characterized in that: include: Feed point, switch feed point and A feeding point, wherein the feeding point is defined with a first direction and a second direction opposite to the first direction; A first radiating portion, the first radiating portion is connected to the feeding point and comprises a first extending arm extending in a first direction; A second radiating portion for high-frequency radiation, the second radiating portion being connected to the feeding point and comprising a second extending arm extending from the feeding point toward the first radiating portion; A third radiating portion for high frequency radiation, wherein the third radiating portion is connected to the feeding point; The low-frequency coupling slot is opened between the feed point and the switch feed point to generate a low-frequency bandwidth.

2. The broadband antenna according to claim 1, characterized in that: The feeding point includes a first feeding point and a second feeding point, the first feeding point is arranged on one side of the first direction of the feeding point, and the second feeding point is arranged on one side of the second direction of the feeding point; the first feeding point is a high-frequency parasitic unit of the broadband antenna.

3. The broadband antenna according to claim 1, characterized in that: The broadband antenna is also provided with a high-frequency coupling slot for generating a high-frequency bandwidth.

4. The broadband antenna according to claim 1, characterized in that: A strip-shaped hollow hole is formed beside the first extending support arm.

5. The broadband antenna according to claim 1, characterized in that: A strip-shaped hollow hole is opened beside the third radiation portion.

6. The broadband antenna according to claim 2, characterized in that: The high frequency parasitic unit can generate an operating frequency band ranging from 2500 MHz to 2690 MHz.

7. The broadband antenna according to claim 1, characterized in that: The first radiating portion can generate an operating frequency band ranging from 700 MHz to 960 MHz.

8. The broadband antenna according to claim 1, characterized in that: The second radiating portion can generate an operating frequency band ranging from 1700 MHz to 2170 MHz.

9. The broadband antenna according to claim 1, characterized in that: The third radiating portion can generate an operating frequency band ranging from 1710 MHz to 2170 MHz.

10. A communication device, characterized in that: Comprising the broadband antenna according to any one of claims 1 to 9.

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