CN201167127Y - Antenna with a shield - Google Patents

Abstract

An antenna includes a ground element, a radiator and a conductive element. The conductive element is connected to the ground element and the radiator. The radiator comprises a body part and a first groove. The body portion comprises a first edge, a second edge, a third edge and a fourth edge, wherein the first edge is parallel to the third edge, the length of the first edge is smaller than that of the third edge, the first edge is adjacent to the grounding element, the second edge is connected with the first edge and the third edge, the fourth edge is connected with the first edge and the third edge, and the second edge and the fourth edge extend from the first edge to the third edge in a mode of gradually opening from each other. The first groove is arranged on the edge of the radiator.

Description

antenna

technical field

The utility model relates to an antenna, in particular to an antenna with relatively large signal transmission bandwidth.

Background technique

U.S. patents US 6,812,892, US 7,161,543 and US 6,891,504 respectively disclose three traditional antennas, whose signal transmission bandwidth is relatively narrow, and cannot meet today's signal transmission requirements. For example, FIG. 1 a shows a conventional antenna 1 disclosed in US Pat. No. 6,812,892, which includes a ground element 10 , a conductive element 20 and a radiator 30 . A conductive element 20 is connected to the ground element 10 . The radiator 30 is connected to the conducting element 20 . The coaxial cable 40 is coupled to the ground element 10 and the conductive element 20 . The radiator 30 includes a first section 31 and a second section 32 . The first section 31 transmits a high frequency signal, and the second section 32 transmits a low frequency signal.

Referring to Figure 1b, which shows the signal transmission effect of the traditional antenna 1, it can be seen from Figure 1b that the effective frequency band of the traditional antenna 1 (the part where the Voltage Standing Wave Ratio is less than 2) is approximately between 2.39GHz and 2.53GHz, and between 4.84GHz and 5.80GHz. In the traditional technology, due to its narrow signal transmission bandwidth, it cannot meet today's signal transmission requirements.

Utility model content

The utility model is an antenna provided to solve the problems of the traditional technology.

In order to achieve the purpose of the utility model, an antenna is provided, which includes a ground element, a radiator and a conduction element. The conduction element connects the ground element and the radiator. The radiator includes a body and a first groove. The body part includes a first edge, a second edge, a third edge and a fourth edge, the first edge is parallel to the third edge, the length of the first edge is smaller than the length of the third edge, and the first edge is parallel to the third edge. The edge is adjacent to the ground element, the second edge connects the first edge and the third edge, the fourth edge connects the first edge and the third edge, and the second edge and the fourth edge are separated from each other. The way extends from the first edge toward the third edge. The first groove is opened on the edge of the radiator.

The advantage of the antenna of the present invention is that it can provide a wider bandwidth and better signal transmission effect with a smaller volume antenna structure.

Description of drawings

Figure 1a shows a conventional antenna;

Figure 1b shows the signal transmission effect of a traditional antenna;

Figure 2a shows a perspective view of the antenna of the first embodiment of the present invention;

Fig. 2b shows the front view of the antenna of the first embodiment of the present invention;

Fig. 3 shows the signal transmission effect of the antenna of the first embodiment of the present invention;

Fig. 4a-Fig. 4d show the signal trend in the antenna of the first embodiment of the present invention;

Fig. 5 shows the antenna of the second embodiment of the utility model;

Fig. 6 shows the antenna of the third embodiment of the utility model;

Fig. 7a shows the antenna of the fourth embodiment of the present invention;

Figure 7b shows a modified example of the fourth embodiment of the present invention; and

Fig. 8 shows the antenna of the fifth embodiment of the present invention.

Description of main component symbols

1～antenna

10～Earth element

20～Conductive element

30～ Radiator

31～first section

32～Second section

40～coaxial cable

100, 201, 202, 203, 203’, 204～antenna

110～grounding element

101～first reference line

102～second reference line

120～conducting element

130～Main body

131 ~ First Edge

132 ~ second edge

133 ~ third edge

134 ~ fourth edge

141～the first groove

142～Second Groove

1421～L-shaped section

1422～straight section

150～extended part

151～first section

152～Second section

160～ Radiator

170～feed point

180～coaxial cable

211, 212, 213～ gap

Detailed ways

FIG. 2 a shows a perspective view of the antenna 100 according to the first embodiment of the present invention, and FIG. 2 b shows a front view of the antenna 100 according to the first embodiment of the present invention. Referring to FIGS. 2a and 2b , the antenna 100 includes a ground element 110 , a conductive element 120 and a radiator 160 . The conductive element 120 is connected to the ground element 110 and the radiator 160 . The radiator 160 includes a body portion 130 , a first groove 141 , a second groove 142 and an extension portion 150 . The body portion 130 includes a first edge 131, a second edge 132, a third edge 133 and a fourth edge 134, the first edge 131 is parallel to the third edge 133, the length of the first edge 131 is shorter than the first edge 131 The length of three edges 133, the first edge 131 adjacent to the ground element 110, the second edge 132 connecting the first edge 131 and the third edge 133, the fourth edge 134 connecting the first edge 131 and the third The edge 133 , the second edge 132 and the fourth edge 134 extend from the first edge 131 toward the third edge 133 in a manner of diverging from each other.

The first groove 141 is opened on the second edge 132 , and the extending direction of the first groove 141 is parallel to the first edge 131 . The antenna 100 is further formed with a first reference line 101, the first reference line 101 extends from the second edge 132 to the fourth edge 134, the first reference line 101 is parallel to the first edge 131, wherein the first groove The groove 141 is located above the first reference line 101 , and the length of the first groove 141 is no more than half of the length d1 of the first reference line 101 .

The second groove 142 is opened on the fourth edge 134 , and the extending direction of the fourth groove 134 is parallel to the first edge 131 . The antenna 100 also includes a second reference line 102, the second reference line 102 extends from the second edge 132 to the fourth edge 134, the second reference line 102 is parallel to the first edge 131, wherein the second groove The groove 142 is located above the second reference line 102 , and the length of the second groove 142 is no more than half of the length d2 of the second reference line 102 .

The conductive element 120 connects the fourth edge 134 . The antenna 100 also includes a feed point 170 located on the first edge 131 . The coaxial cable 180 is fed into the radiator 160 at the feeding point 170 . The distance between the feeding point 170 and the second edge 132 is not greater than half of the length d3 of the first edge 131 .

The extension 150 connects the third edge 133, the extension 150 includes a first section 151 and a second section 152, the first section 151 is perpendicular to the second section 152, the first section 151 connects And perpendicular to the body portion 130 , the second segment portion 152 connects to the first segment portion 151 and is parallel to the body portion 130 .

In the above embodiment, the width of the first groove 141 is about 1.5 mm, and the width of the second groove 142 is about 1 mm, but the description of the dimensions in this part does not limit the present invention.

With reference to Fig. 3, it shows the signal transmission effect of the antenna 100 of the first embodiment of the present invention, as can be seen from Fig. 3, the effective frequency band (the part of voltage standing wave ratio less than 2) of the antenna 100 of the present invention is between 2.45GHz to 7 GHz, therefore, the antenna 100 of the present invention can provide a wider bandwidth and better signal transmission effect with a smaller antenna structure.

Referring to Fig. 4a-Fig. 4d, it shows the signal trend of the antenna of the first embodiment of the present invention when transmitting signals, Fig. 4a shows the signal trend of a first wireless signal (2.55GHz), and Fig. 4b shows a second wireless signal (4GHz) signal trend, FIG. 4c shows a signal trend of a third wireless signal (5.05GHz), and FIG. 4d shows a signal trend of a fourth wireless signal (6.75GHz).

Referring to Fig. 5, it shows the antenna 201 of the second embodiment of the present invention, and its feature is that the second groove 142 includes an L-shaped section 1421 and a straight line section 1422, and the L-shaped section 1421 connects the straight line Segment 1422. In a modified example, the first groove may also include an L-shaped section and a straight section, and the L-shaped section connects the straight section.

Referring to FIG. 6 , it shows an antenna 202 according to a third embodiment of the present invention. The feature is that the radiator omits the extension part, and the main body part 130 is used to transmit wireless signals.

Fig. 7 a shows the antenna 203 of the fourth embodiment of the present invention, which is characterized in that the radiator also includes a notch 211, the notch 211 is located on the second edge 132, and connects the first groove 141, the notch is roughly Triangular shape. Fig. 7b shows an antenna 203' of a modified example of the fourth embodiment of the present invention, and its characteristic is that the radiator further includes a notch 212 and a notch 213. The notch 212 is trapezoidal and connects the first groove 141 . The notch 213 is in the shape of a parallelogram and connects the second groove 142 . In the above embodiments, the shape of the notch can be changed as required.

FIG. 8 shows the antenna 204 of the fifth embodiment of the present invention. The feature is that the relative positions of the first groove 141 and the second groove 142 can be adjusted appropriately to meet different signal transmission requirements.

In the above embodiment, the second edge 132 is perpendicular to the first edge 131 , but this does not limit the present invention. At the same time, the shape of the body part can also be other forms of polygons, not limited to trapezoid.

Although the utility model has been disclosed above with specific preferred embodiments, it is not intended to limit the utility model, and any person skilled in the art can still make some changes and modifications without departing from the spirit and scope of the utility model , so the scope of protection of the present utility model should be defined by the claims.

Claims (32)

1. An antenna, characterized in that, has: a grounding element; A radiator is formed with a first groove, the radiator has: A body portion has a first edge, a second edge, a third edge and a fourth edge, the first edge is parallel to the third edge, the length of the first edge is smaller than the length of the third edge, the the first edge is adjacent to the ground element, the second edge connects the first edge and the third edge, and the fourth edge connects the first edge and the third edge; and A conduction element is connected with the ground element and the radiator. 2. The antenna according to claim 1, wherein the first groove is opened on the second edge, and the extension direction of the first groove is parallel to the first edge. 3. The antenna according to claim 2, further comprising a first reference line, the first reference line extends from the second edge to the fourth edge, the first reference line is parallel to the first edge , wherein the first groove is located above the first reference line, and the length of the first groove is equal to half of the length of the first reference line. 4. The antenna according to claim 2, characterized in that, there is a first reference line, the first reference line extends from the second edge to the fourth edge, the first reference line is parallel to the first edge, Wherein, the first groove is located above the first reference line, and the length of the first groove is less than half of the length of the first reference line. 5. The antenna according to claim 2, wherein the radiator is further formed with a second groove, the second groove is opened on the fourth edge, and the extending direction of the fourth groove is parallel to the first groove. an edge. 6. The antenna according to claim 5, further comprising a second reference line, the second reference line extends from the second edge to the fourth edge, the second reference line is parallel to the first edge , wherein the second groove is located above the second reference line, and the length of the second groove is equal to half of the length of the second reference line. 7. The antenna according to claim 5, further comprising a second reference line, the second reference line extends from the second edge to the fourth edge, the second reference line is parallel to the first edge , wherein the second groove is located on the second reference line, and the length of the second groove is less than half of the length of the second reference line. 8. The antenna according to claim 1, further comprising a feed point, the feed point is located at the first edge. 9. The antenna according to claim 8, wherein the conductive element is connected to the fourth edge, and the distance between the feeding point and the second edge is equal to half the length of the first edge. 10. The antenna according to claim 8, wherein the conductive element is connected to the fourth edge, and the distance between the feeding point and the second edge is less than half of the length of the first edge. 11. The antenna according to claim 1, wherein the second edge is perpendicular to the first edge. 12. The antenna according to claim 1, wherein the radiator is further formed with a notch located on the second edge and connected to the first groove. 13. The antenna according to claim 12, wherein the notch is triangular in shape. 14. The antenna according to claim 12, wherein the notch is trapezoidal. 15. The antenna according to claim 1, wherein the radiator further has an extension, the extension connects the third edge, the extension has a first segment and a second segment, the The first section is perpendicular to the second section, the first section is connected to and perpendicular to the main body, and the second section is connected to the first section and parallel to the main body. 16. The antenna according to claim 1, wherein the first groove has an L-shaped section and a straight section, and the L-shaped section connects the straight section. 17. An antenna, characterized in that it has: a grounding element; A radiator, having: A body portion has a first edge, a second edge, a third edge and a fourth edge, the first edge is parallel to the third edge, the length of the first edge is smaller than the length of the third edge, the a first edge adjacent to the ground element, the second edge and the fourth edge extending from the first edge toward the third edge in a manner that diverges from each other; and a first groove opened on the edge of the radiator; and A conduction element is connected with the ground element and the radiator. 18. The antenna according to claim 17, wherein the body portion is polygonal. 19. The antenna according to claim 17, wherein the first groove is opened on the second edge, and the extending direction of the first groove is parallel to the first edge. 20. The antenna according to claim 19, further comprising a first reference line, the first reference line extends from the second edge to the fourth edge, the first reference line is parallel to the first edge , wherein the first groove is located above the first reference line, and the length of the first groove is equal to half of the length of the first reference line. 21. The antenna according to claim 19, further comprising a first reference line, the first reference line extends from the second edge to the fourth edge, the first reference line is parallel to the first edge , wherein the first groove is located above the first reference line, and the length of the first groove is less than half of the length of the first reference line. 22. The antenna according to claim 19, further comprising a second groove, the second groove is opened on the fourth edge, and the extending direction of the fourth groove is parallel to the first edge. 23. The antenna according to claim 22, further comprising a second reference line, the second reference line extends from the second edge to the fourth edge, the second reference line is parallel to the first edge , wherein the second groove is located above the second reference line, and the length of the second groove is equal to half of the length of the second reference line. 24. The antenna according to claim 22, further comprising a second reference line, the second reference line extends from the second edge to the fourth edge, the second reference line is parallel to the first edge , wherein the second groove is located above the second reference line, and the length of the second groove is less than half of the length of the second reference line. 25. The antenna according to claim 17, further comprising a feed point, the feed point is located at the first edge. 26. The antenna according to claim 25, wherein the conductive element is connected to the fourth edge, and the distance between the feeding point and the second edge is equal to half the length of the first edge. 27. The antenna according to claim 25, wherein the conductive element is connected to the fourth edge, and the distance between the feeding point and the second edge is less than half of the length of the first edge. 28. The antenna according to claim 17, wherein the radiator further has a notch, the notch is located on the second edge and connected to the first groove. 29. The antenna according to claim 28, wherein the notch is triangular in shape. 30. The antenna according to claim 28, wherein the notch is trapezoidal. 31. The antenna according to claim 17, wherein the radiator further has an extension, the extension connects the third edge, the extension has a first segment and a second segment, the The first section is perpendicular to the second section, the first section is connected to and perpendicular to the main body, and the second section is connected to the first section and parallel to the main body. 32. The antenna according to claim 17, wherein the first slot has an L-shaped section and a straight section, and the L-shaped section connects the straight section.

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