CN101123323B - Communication device and its three-dimensional antenna - Google Patents

Abstract

The invention relates to a communication device and a three-dimensional antenna thereof. The communication device comprises a circuit board, a three-dimensional antenna and a bearing unit. The three-dimensional antenna comprises a radiation body, a feed-in unit and a grounding unit. The radiation body is provided with a first metal sheet, a second metal sheet, a first crack and a second crack, wherein the first metal sheet is provided with a first side edge and a second side edge opposite to the first side edge; the second metal sheet is arranged on the second side edge of the first metal sheet in an extending mode at a first included angle, and the second metal sheet is provided with a third side edge opposite to the second side edge; the first slit and the second slit are formed between the first side edge and the third side edge, and the first slit is substantially perpendicular to the first side edge and the second slit. The communication device and the three-dimensional antenna thereof can reduce the size and are convenient to install or replace.

Description

Communication device and its three-dimensional antenna

technical field

The invention relates to an antenna and a communication device, in particular to a communication device and a three-dimensional antenna thereof.

Background technique

With the development of technology and the improvement of people's quality of life, people have higher and higher requirements for product quality, lightness, thinness, shortness, and smallness. Of course, the requirements for communication devices are no exception. As far as the communication device is concerned, people not only require the communication device to have excellent communication quality, but also hope that the size of the communication device should be as small as possible so that the user can carry it easily.

Please refer to FIG. 1, an existing communication device 1 has at least a printed circuit board 11 and a planar antenna 12, wherein the planar antenna 12 is directly arranged on the circuit board 11 to transmit the signals sent and received by the planar antenna 12. . Generally speaking, the planar antenna 12 can be formed at the same time as the metal wires on the printed circuit board 11 are fabricated.

However, the size of the planar antenna 12 varies according to its required functions. When a larger-sized planar antenna 12 is required, the circuit board 11 must provide enough area for the planar antenna 12 to be set, so that Therefore, the size of the communication device 1 cannot be reduced effectively. Moreover, since the planar antenna 12 is formed while making the circuit board 11, that is to say, the planar antenna 12 cannot be replaced arbitrarily. Therefore, when the planar antenna 12 breaks down, only a brand-new circuit board with the planar antenna 12 can be replaced. 11 way of maintenance, which in turn leads to an increase in the cost of maintenance.

Therefore, how to provide a communication device capable of solving the above-mentioned problems is one of the current important issues.

In view of the defects of the above-mentioned existing communication devices, the inventor actively researches and innovates based on years of rich practical experience and professional knowledge engaged in the design and manufacture of such products, and cooperates with the application of academic theories, in order to create a communication device with a new structure. The device and its three-dimensional antenna can improve the general existing communication devices and make them more practical. Through continuous research, design, and after repeated trial samples and improvements, the present invention with practical value is finally created.

Contents of the invention

The purpose of the present invention is to overcome the defects of existing communication devices and provide a communication device with a new structure and its three-dimensional antenna. practical.

The purpose of the present invention and the solution to its technical problems are achieved by adopting the following technical solutions. According to a three-dimensional antenna proposed by the present invention, it includes: a radiation body, which has a first metal sheet, a second metal sheet, a first slit and a second slit, and the first metal sheet has a first a side and a second side opposite to the first side, the second metal sheet is extended on the second side of the first metal sheet at a first angle, and the second metal sheet has a third side opposite to the second side, the first slit and the second slit are formed between the first side and the third side, and the first slit and the first side and the second crack is substantially vertical; a feed-in unit is electrically connected to the second metal sheet of the radiation body; and a grounding unit is electrically connected to the second metal sheet of the radiation body.

The purpose of the present invention and its technical problems can also be further realized by adopting the following technical measures.

The aforementioned three-dimensional antenna, wherein the surface of the first metal sheet is a curved surface.

In the aforementioned three-dimensional antenna, the second metal sheet further includes a fourth side, which is respectively adjacent to the second side of the first metal sheet and the third side of the second metal sheet.

In the aforementioned three-dimensional antenna, the radiating body further includes a first extending portion extending on the fourth side of the second metal sheet.

In the aforementioned three-dimensional antenna, the first extension part and the second metal sheet form a second included angle.

In the aforementioned three-dimensional antenna, the second metal sheet further includes a fifth side opposite to the fourth side.

In the aforementioned three-dimensional antenna, the radiating body further includes a second extension portion extending on the fifth side of the second metal sheet.

In the aforementioned three-dimensional antenna, the second extension part and the second metal sheet form a third angle.

In the aforementioned three-dimensional antenna, both the first slit and the second slit are T-shaped.

In the aforementioned three-dimensional antenna, the first crack is from the first side of the first metal sheet to the third side of the second metal sheet.

The aforementioned three-dimensional antenna operates in the frequency band of GSM 850, GSM 900, DCS 1800 or PCS 1900.

The purpose of the present invention and the solution to its technical problem also adopt the following technical solutions to achieve. According to a communication device proposed by the present invention, it includes: a circuit board with a first electrical connection pad and a second electrical connection pad; a three-dimensional antenna with a radiation body, a feed-in unit and a ground A unit, the radiation body has a first metal sheet, a second metal sheet, a first slit and a second slit, the first metal sheet has a first side and a first side opposite to the first side Two sides, the second metal sheet extends on the second side of the first metal sheet at a first angle, and the second metal sheet has a third side opposite to the second side , the first crack and the second crack are formed between the first side and the third side, and the first crack is substantially perpendicular to the first side and the second crack, and the feeding The unit is electrically connected to the second metal sheet of the radiation body and the first electrical connection pad of the circuit board, and the grounding unit is respectively connected to the second metal sheet of the radiation body and the second pad of the circuit board. The electrical connection pad is electrically connected; and a carrying unit is connected with the circuit board and carries the three-dimensional antenna.

The purpose of the present invention and its technical problems can also be further realized by adopting the following technical measures.

In the aforementioned communication device, the radiation body further includes at least one first connecting portion, and the carrying unit includes at least one second connecting portion, wherein the first connecting portion is connected to the second connecting portion.

In the aforementioned communication device, the carrying unit is snapped, locked or glued to the circuit board.

With the above technical solution, the communication device and its three-dimensional antenna of the present invention have at least the following advantages:

In the three-dimensional antenna of the present invention, the second metal sheet is extended on the second side of the first metal sheet at a first angle. In other words, the projected area of the first metal sheet and the second metal sheet on the carrying unit is smaller than that of the first metal sheet. The sum of the areas of the first metal sheet and the second metal sheet, therefore, the size of the carrying unit can be reduced. Correspondingly, the area provided by the circuit board for the carrying unit can also be reduced, thereby reducing the size of the communication device and making it easy to use are carried. In addition, since the three-dimensional antenna can be matched with the carrying unit, when the three-dimensional antenna fails, the operator only needs to replace the new three-dimensional antenna on the carrying unit to complete the maintenance. In other words, the undamaged circuit board can be used repeatedly, thereby reducing The cost of product repairs.

To sum up, the novel communication device and its three-dimensional antenna of the present invention can be reduced in size and are easy to install or replace. The present invention has the above-mentioned many advantages and practical value, it has great improvement no matter in device structure or function, has remarkable progress in technology, and has produced easy-to-use and practical effect, and compared with existing communication device The utility model has multiple improved functions, is more suitable for practical use, and has extensive application value in the industry. It is a novel, progressive and practical new design.

The above description is only an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the present invention more obvious and understandable , the following preferred embodiments are specifically cited below, and are described in detail as follows in conjunction with the accompanying drawings.

Description of drawings

FIG. 1 is a schematic diagram of a conventional communication device.

FIG. 2 to FIG. 9 are a set of schematic diagrams of a stereo antenna according to a preferred embodiment of the present invention.

FIG. 10 is a measurement schematic diagram showing the measurement results of VSWR of the three-dimensional antenna shown in FIG. 9 .

11 to 14 are schematic diagrams showing the measurement results of the radiation pattern of the E-Plane when the stereo antenna shown in FIG. 9 operates at 849 MHz, 894 MHz, 1805 MHz and 1880 MHz.

FIG. 15 and FIG. 16 are a set of schematic diagrams of a communication device according to a preferred embodiment of the present invention.

1: Communication device 11: Printed circuit board

12: Planar antenna 2: Communication device

21: Stereo Antenna 211: Radiation Body

2111: The first metal sheet 2112: The second metal sheet

2112a: The Gap 2113: The First Crack

2114: Second crack 2115: First extension

2116: The second extension part 2117: The first connection part

212: Feed-in unit 213: Grounding unit

22: Carrying unit 221: Second connecting part

222: The third link 23: Circuit board

231: The first electrical connection pad 232: The second electrical connection pad

233: Fourth link HA: High frequency area

L1: first length L2: second length

LA: low frequency area R1: first included angle

R2: the second included angle R3: the third included angle

S1: First side S2: Second side

S3: The third side S4: The fourth side

S5: fifth side

Detailed ways

In order to further explain the technical means and effects that the present invention adopts to achieve the intended purpose of the invention, below in conjunction with the accompanying drawings and preferred embodiments, the communication device and its three-dimensional antenna proposed according to the present invention will be described in terms of its specific implementation, structure, characteristics and features. Its effect is described in detail below.

Please refer to FIG. 2 , the stereo antenna 21 according to a preferred embodiment of the present invention includes a radiation body 211 , a feeding unit 212 and a grounding unit 213 .

The radiation body 211 is electrically connected to the feeding unit 212 and the grounding unit 213 respectively, and has a first metal sheet 2111 , a second metal sheet 2112 , a first slit 2113 and a second slit 2114 . The first metal sheet 2111 has a first side S1 and a second side S2 opposite to the first side S1, and the second metal sheet 2112 is extended on the side of the first metal sheet 2111 at a first angle R1. The second side S2, and the second metal sheet 2112 has a third side S3 opposite to the second side S2, wherein the first metal sheet 2111 and the second metal sheet 2112 can be different according to the actual design. Shape, for example, the surfaces of the first metal sheet 2111 and the second metal sheet 2112 form a plane (as shown in FIG. 2 ). The surface of the first metal sheet 2111 is a curved surface, and the surface of the second metal sheet 2112 is a plane (as shown in FIG. 3 ).

In addition, as shown in Figure 2 and Figure 3, the first crack 2113 and the second crack 2114 are formed between the first side S1 and the third side S3, and the first crack 2113 is connected to the first side S1 and the second crack 2114 is substantially vertical. In this embodiment, the first crack 2113 is cracked from the first side S1 of the first metal sheet 2111 to the third side S3 of the second metal sheet 2112, and the second crack 2114 is connected with the first The sides S1 are arranged in parallel, and at this time, both the first slit 2113 and the second slit 2114 are T-shaped.

Furthermore, please refer to FIG. 3 again. In this embodiment, the first slit 2113 divides the first side S1 into a first length L1 and a second length L2, and the first length L1 is greater than the second length L2. At this time, please refer to FIG. 4 , the first crack 2113 divides the radiation body 211 into a high frequency area HA and a low frequency area LA. Wherein, the high frequency area HA of the radiation body 211 is used for transmitting and receiving high frequency band signals, and the low frequency area LA of the radiation body 211 is used for transmitting and receiving low frequency band signals.

Please refer to FIG. 5, in this embodiment, the second metal sheet 2112 further includes a fourth side S4 and a fifth side S5, wherein the fourth side S4 is connected to the second side S2 and the fifth side S5 respectively. The three sides S3 are adjacent, and the fifth side S5 is disposed opposite to the fourth side S4 and adjacent to the second side S2 and the third side S3 respectively. At this time, the radiation body 211 further includes a first extension part 2115 and a second extension part 2116, wherein the first extension part 2115 is extended to the fourth side S4 of the second metal sheet 2112, and the second extension part 2116 Extended on the fifth side S5 of the second metal sheet 2112 .

Of course, please refer to FIG. 6 , the first extension part 2115 and the second metal piece 2112 may form a second angle R2, and the second extension part 2116 and the second metal piece 2112 form a third angle R3.

In addition, as shown in FIG. 7, in order to adapt to the actual application of the three-dimensional antenna 21, when there are a small number of force majeure components in the product that block the installation of the three-dimensional antenna 21, without affecting the communication quality of the three-dimensional antenna 21, The second metal sheet 2112 may further include a notch 2112a to avoid the element.

Furthermore, please refer to FIG. 8 , the three-dimensional antenna 21 cooperates with a carrying unit 22 , and the carrying unit 22 carries the three-dimensional antenna 21 . Wherein, the radiation body 211 of the three-dimensional antenna 21 further includes at least one first connecting portion 2117 , and the carrying unit 22 includes at least one second connecting portion 221 , wherein the first connecting portion 2117 is connected to the second connecting portion 221 . In this embodiment, the first connecting portion 2117 is a concave portion as an example, and the second connecting portion 221 is a convex portion as an example. Of course, the first connecting portion 2117 can also be a convex portion, and the second connecting portion 221 can also be a convex portion. recessed part. In addition, the first connecting portion 2117 and the second connecting portion 221 can be connected by snapping, bonding, locking or welding.

8, the three-dimensional antenna 21 is extended on the second side S2 of the first metal sheet 2111 by the first angle R1 due to the second metal sheet 2111, in other words, the first metal sheet 2111 and the second metal sheet The projected area of the sheet 2112 on the carrying unit 22 is smaller than the sum of the areas of the first metal sheet 2111 and the second metal sheet 2112, so the size of the carrying unit 22 can be reduced, and thus the size of the product can be reduced for the convenience of users. carry.

Besides, the feeding unit 212 is electrically connected to the second metal sheet 2112 of the radiation body 211 , and the grounding unit 213 is electrically connected to the second metal sheet 2112 of the radiation body 211 . The shapes of the feed-in unit 212 and the ground unit 213 may vary according to actual designs, for example, the feed-in unit 212 and the ground unit 213 are sheet-shaped (as shown in FIG. 8 ), or bent sheet-shaped ( as shown in Figure 9).

Please refer to shown in Fig. 10, which shows the three-dimensional antenna 21 of the preferred embodiment of the present invention - a VSWR measurement diagram, in Fig. 10, the vertical axis represents the voltage static standing wave ratio (VSWR), and the horizontal axis represents the frequency ( Frequency), it can be observed that the stereo antenna 21 of the preferred embodiment of the present invention can operate at a frequency between about 824MHz to 960MHz, and a frequency between about 1710MHz to 1990MHz. In other words, the stereo antenna 21 in this embodiment can operate in the frequency bands of GSM 850, GSM 900, DCS 1800 or PCS 1900.

In addition, FIGS. 11-14 show the measurement results of the radiation pattern of the E-Plane when the three-dimensional antenna 21 of FIG. 9 operates at 849MHz, 894MHz, 1805MHz and 1880MHz. In this result, the three-dimensional antenna 21 of the present invention can be observed The peak power gains are about 0.8, 1.61, 1.41 and 2.28dBi respectively.

Please refer to FIG. 15 and FIG. 16 , the communication device 2 according to the preferred embodiment of the present invention includes the aforementioned three-dimensional antenna 21 , the carrying unit 22 and a circuit board 23 . Wherein, the main structures of the three-dimensional antenna 21 and the carrying unit 22 have been discussed in the above-mentioned embodiments of the three-dimensional antenna, so they will not be repeated here. In addition, the circuit board 23 has a first electrical connection pad 231 and a second electrical connection pad 232 . The feeding unit 212 is electrically connected to the first electrical connection pad 231 of the circuit board 23 , and the grounding unit 213 is electrically connected to the second electrical connection pad 232 of the circuit board 23 . The carrying unit 22 is connected to the circuit board 23 and carries the three-dimensional antenna 21 .

In addition, in the present embodiment, the carrying unit 22 can be combined with the circuit board 23 in a manner such as locking, locking or gluing. For example, the carrying unit 22 further includes a third connecting portion 222, and the circuit board 23 further includes a fourth connecting portion 233, wherein the third connecting portion 222 can be connected with the fourth connecting portion 233, so when the stereo antenna 21 fails At this time, the industry only needs to replace the new three-dimensional antenna 21 on the carrying unit 22, so the undamaged circuit board 23 can be used repeatedly, thereby reducing the cost of product maintenance.

In summary, according to the present invention, the second metal sheet of a three-dimensional antenna is extended on the second side of the first metal sheet at a first angle, in other words, the first metal sheet and the second metal sheet are on the bearing The projected area on the unit is smaller than the sum of the areas of the first metal sheet and the second metal sheet. Therefore, the size of the carrying unit can be reduced. Correspondingly, the area provided by the circuit board to the carrying unit can also be reduced, thereby reducing the communication capacity. The size of the device is convenient for the user to carry. In addition, since the three-dimensional antenna can be matched with the carrying unit, when the three-dimensional antenna fails, the operator only needs to replace the new three-dimensional antenna on the carrying unit to complete the maintenance. In other words, the undamaged circuit board can be used repeatedly, thereby reducing The cost of product repairs.

The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Anyone familiar with this field Those skilled in the art, without departing from the scope of the technical solution of the present invention, can use the technical content disclosed above to make some changes or modify equivalent embodiments with equivalent changes, but all the content that does not depart from the technical solution of the present invention, according to the present invention Any simple modifications, equivalent changes and modifications made to the above embodiments by the technical essence still belong to the scope of the technical solution of the present invention.

Claims (13)

1. three-dimensional antenna is characterized in that it comprises:

One radiation body, it has one first sheet metal, one second sheet metal, one first crack and one second crack, this first sheet metal has a first side and a second side relative with this first side, this second sheet metal extends this second side in this first sheet metal with one first angle, and this second sheet metal has one three side relative with this second side, this first crack and this second crack are formed between this first side and the 3rd side, and this first crack is vertical in fact with this first side and this second crack;

One feed-in unit, this second sheet metal of itself and this radiation body electrically connects; And

One ground unit, this second sheet metal of itself and this radiation body electrically connects;

Wherein, described first crack and second crack are the T font.

2. three-dimensional antenna according to claim 1 is characterized in that the surface of wherein said first sheet metal is a curved surface.

3. three-dimensional antenna according to claim 1 is characterized in that wherein said second sheet metal more comprises a four side, its respectively with the second side of first sheet metal and the 3rd side adjacency of second sheet metal.

4. three-dimensional antenna according to claim 3 is characterized in that wherein said radiation body more comprises one first extension, and it extends in the four side of second sheet metal.

5. three-dimensional antenna according to claim 4 is characterized in that wherein said first extension and second sheet metal are one second angle.

6. three-dimensional antenna according to claim 3 is characterized in that wherein said second sheet metal more comprises one the 5th side, and it is relative with four side and establish.

7. three-dimensional antenna according to claim 6 is characterized in that wherein said radiation body more comprises one second extension, and it extends the 5th side in second sheet metal.

8. three-dimensional antenna according to claim 7 is characterized in that wherein said second extension and second sheet metal are one the 3rd angle.

9. three-dimensional antenna according to claim 1 is characterized in that wherein said first crack is to split the 3rd side to second sheet metal by the first side of first sheet metal.

10. three-dimensional antenna according to claim 1 is characterized in that it is the frequency range that operates in GSM 850, GSM 900, DCS 1800 or PCS 1900 standards.

11. a communication device is characterized in that it comprises:

One circuit board has one first electric connection pad and one second electric connection pad;

One three-dimensional antenna, has a radiation body, an one feed-in unit and a ground unit, this radiation body has one first sheet metal, one second sheet metal, one first crack and one second crack, this first sheet metal has a first side and a second side relative with this first side, this second sheet metal extends this second side in this first sheet metal with one first angle, and this second sheet metal has one three side relative with this second side, this first crack and this second crack are formed between this first side and the 3rd side, and this first crack is vertical in fact with this first side and this second crack, this feed-in unit electrically connects with this second sheet metal of this radiation body and this first electric connection pad of this circuit board respectively, and this ground unit electrically connects with this second sheet metal of this radiation body and this second electric connection pad of this circuit board respectively; And

One load bearing unit is connected with this circuit board, and carries this three-dimensional antenna;

Wherein, described first crack and second crack are the T font.

12. communication device according to claim 11 is characterized in that wherein said radiation body more comprises at least one first linking part, and this load bearing unit comprises at least one second linking part, wherein this first linking part is connected with this second linking part.

13. communication device according to claim 11 is characterized in that wherein said load bearing unit engages with this circuit board, sealed or gummed.

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