CN201226374Y - Antennae - Google Patents
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- CN201226374Y CN201226374Y CNU2008201159674U CN200820115967U CN201226374Y CN 201226374 Y CN201226374 Y CN 201226374Y CN U2008201159674 U CNU2008201159674 U CN U2008201159674U CN 200820115967 U CN200820115967 U CN 200820115967U CN 201226374 Y CN201226374 Y CN 201226374Y
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Abstract
The utility model relates to an antenna, which comprises a substrate, a radiation part and a signal feeding part. The radiation part comprises a first radiating element and a second radiating element which are arranged on the identical surface of the substrate. The signal feeding part is positioned on the first radiating element. The second radiating element and the first radiating element have the identical shape and are symmetrically arranged, and the second radiating element is connected with the first radiating element so as to form a closed circuit. Therefore, the utility model not only can improve the impedance, but also can achieve a wider bandwidth.
Description
Technical field
The utility model relates to a kind of antenna, particularly a kind of antenna with high impedance and broadband.
Background technology
Along with the wireless telecommunications development of science and technology, the user can not limited by landform, utilizes wireless telecommunication system to carry out message transmission.And antenna is one of assembly important in the field of wireless communication, and the making of antenna at present is subjected to the favor of manufacturer in the printed circuit board (PCB) mode, and it has advantages such as easy to manufacture and with low cost.
Please refer to Figure 1A and Figure 1B, Figure 1A and Figure 1B are the schematic diagram of existing omni-directional antenna.Wherein, Figure 1A is existing omni-directional antenna front schematic view, and Figure 1B is existing omni-directional antenna reverse side schematic diagram.Omni-directional antenna has substrate 1, signal feed-in part 2, first circuit 3, second circuit 4, first Department of Radiation 5 and second Department of Radiation 6.Wherein, second Department of Radiation 6 is a grounding parts.
The gain of existing omni-directional antenna is not high.In order to improve gain, how to be connected in series the open type dipole antenna in the mode that is connected in series.But, therefore on the circuit of open type dipole antenna, can make wider metal and transmit signal in order to allow the radiating element or the ground unit of serial connection to each other can impedance matching.Wherein metallic circuit is made the mode of broad, causes the spacing between the spoke side that has shortened metal wire and radiating element, make the online transmission of metal effect of signals the signal on the spoke side, cause the coupling effect between metal wire and the spoke side.
Coupling effect between this metal wire and the spoke side has not only influenced radiating element impedance matching to each other, also makes the width of frequency band be restricted.And on the other hand, if avoid coupling effect between metal wire and the spoke side, and increase the spacing between metal wire and the spoke side, but cause the directive property of omni-directional antenna too high easily.
And for fear of the problem of existing omni-directional antenna, by the contact of first radiating element is connected in series the design of first radiating element and second radiating element with the mode that the contact of second radiating element welds with boring, to form circulating loop, utilization has the high-impedance behavior of the dipole antenna of circulating antenna radiation unit, can reach the more effect in broadband of more existing technology, but, the difficulty of technology is improved and the reduction yield for first radiating element is connected with second radiating element.
Relevant patent please refer to TaiWan, China patent M329254 number.
Summary of the invention
In view of above problem, the utility model provides a kind of antenna, by Department of Radiation being connected with grounding parts to form loop, utilizes the high-impedance behavior of circulating dipole antenna, can reach the comparatively effect in broadband, have simultaneously and reduce technology difficulty and the effect that improves yield.
According to the disclosed antenna of the utility model, include substrate, Department of Radiation and signal feed-in part.Department of Radiation comprises first radiating element and second radiating element.First radiating element and second radiating element are positioned on the same surface of substrate, and signal feed-in part is positioned on first radiating element.Second radiating element is identical with the first radiating element shape and the position is symmetrical.Second radiating element is connected in first radiating element, so that first radiating element and second radiating element form a loop.In this, second radiating element is as the ground unit of this antenna, and via the signal feed-in part feed-in or feed out signal.
According to disclosed another antenna of the utility model, include substrate, main signal feeding portion, a plurality of Department of Radiation and subsignal feeding portion.Substrate has first surface and second surface, and first surface has first circuit, and second surface has second circuit superimposed with first circuit.The main signal feeding portion is positioned on first circuit and second circuit, with feed-in or feed out signal.Each Department of Radiation comprises first radiating element and second radiating element.First radiating element and second radiating element are positioned at first surface, and first radiating element is electrically connected at first circuit.Second radiating element of same Department of Radiation is identical with the first radiating element shape and the position is symmetrical, and second radiating element is connected in first radiating element, so that first radiating element and second radiating element form a loop.Second radiating element is as the ground unit of this antenna.The subsignal feeding portion is positioned on second circuit and first radiating element, with feed-in or feed out signal.
According to the disclosed antenna of the utility model, with the signal feed-in, and be passed to Department of Radiation via first circuit and second circuit by main signal feeding portion and subsignal feeding portion.Because first radiating element and this second radiating element pin position interconnect, form circulating loop, so that the high-impedance behavior and the effect in broadband more to be provided, to have simultaneously and reduce technology difficulty and the effect that improves yield.
Below in conjunction with the drawings and specific embodiments the utility model is described in detail, but not as to qualification of the present utility model.
Description of drawings
Figure 1A is first schematic diagram of existing omni-directional antenna;
Figure 1B is second schematic diagram of existing omni-directional antenna;
Fig. 2 is the schematic diagram of first embodiment of the present utility model;
Fig. 3 A is the first surface schematic diagram of second embodiment of the present utility model;
Fig. 3 B is the second surface schematic diagram of second embodiment of the present utility model;
Fig. 4 is the measurement figure of the standing-wave ratio of the utility model second embodiment;
The center polarization field shape figure of Fig. 5 A horizontal plane that to be second embodiment of the present utility model done with frequency values 1710MHz;
The center polarization field shape figure of Fig. 5 B horizontal plane that to be second embodiment of the present utility model done with frequency values 1825MHz;
The center polarization field shape figure of Fig. 5 C horizontal plane that to be second embodiment of the present utility model done with frequency values 1940MHz;
The center polarization field shape figure of Fig. 5 D horizontal plane that to be second embodiment of the present utility model done with frequency values 2055MHz;
The center polarization field shape figure of Fig. 5 E horizontal plane that to be second embodiment of the present utility model done with frequency values 2170MHz;
The center polarization field shape figure of Fig. 6 A vertical plane that to be second embodiment of the present utility model done with frequency values 1710MHz;
The center polarization field shape figure of Fig. 6 B vertical plane that to be second embodiment of the present utility model done with frequency values 1825MHz;
The center polarization field shape figure of Fig. 6 C vertical plane that to be second embodiment of the present utility model done with frequency values 1940MHz;
The center polarization field shape figure of Fig. 6 D vertical plane that to be second embodiment of the present utility model done with frequency values 2055MHz; And
The center polarization field shape figure of Fig. 6 E vertical plane that to be second embodiment of the present utility model done with frequency values 2170MHz.
Wherein, Reference numeral
1 substrate
2 signal feed-in part
3 first circuits
4 second circuits
5 first Departments of Radiation
6 second Departments of Radiation
10 substrates
11 surfaces
20 signal feed-in part
30 first radiating elements
31 bodies
32 first extensions
33 second extensions
34 first grooves
35 first grooves
40 second radiating elements
41 bodies
42 the 3rd extensions
43 the 4th extensions
44 second grooves
45 second grooves
50 substrates
51 first surfaces
52 second surfaces
53 first circuits
54 second circuits
60 main signal feeding portions
70 subsignal feeding portions
80 first radiating elements
81 bodies
82 first extensions
83 second extensions
84 first grooves
85 first grooves
90 second radiating elements
91 bodies
92 the 3rd extensions
93 the 4th extensions
94 second grooves
95 second grooves
Embodiment
Please refer to Fig. 2, Fig. 2 is the schematic diagram of the utility model first embodiment.As shown in Figure 2, antenna package contains substrate 10, signal feed-in part 20 and Department of Radiation.
First radiating element 30 can have body 31 with by extended first extension 32 in body 31 both sides and second extension 33.Second radiating element 40 can have body 41 with by extended the 3rd extension 42 in body 41 both sides and the 4th extension 43.Wherein, first extension 32 is connected in the 3rd extension 42, and second extension 33 is connected in the 4th extension 43, causes first radiating element 30 and second radiating element 40 to form circulating loop.
First radiating element 30 can have more a plurality of first grooves, to suppress the influence of leakage current to first radiating element 30.Second radiating element 40 also can have a plurality of second grooves, to suppress the influence of leakage current to second radiating element 40.
In this, second groove and first groove are can shape identical and the position is symmetrical.It is different and asymmetric that certain second groove and first groove also can shapes.
In present embodiment, on the body 31 of first radiating element 30, can have first groove 34,35.In this, first groove 34,35 is arranged in parallel.
Wherein, the opening of first groove 34 is positioned at the opposite side (i.e. the outside of the body 31 of first radiating element 30) of the body 31 of first radiating element 30 with respect to second radiating element 40, and first groove 34 is extended towards second radiating element 40 by the outside of the body 31 of first radiating element 30.Wherein, the bearing of trend of first groove 34 can be in corresponding to body 31 outsides of first radiating element 30 and the direction of the minimum range between second radiating element 40.The opening of first groove 35 is positioned at a side (i.e. the inboard of the body 31 of first radiating element 30) of body 31 contiguous second radiating elements 40 of first radiating element 30, and first groove 35 is extended towards the direction away from second radiating element 40 by the inboard of the body 31 of first radiating element 30.In this, first groove 35 can extend in parallel to the bearing of trend in contrast to first groove 34.
In present embodiment, second groove 44,45 can be arranged on the body 41 of second radiating element 40.In this, second groove 44,45 is arranged in parallel.
Wherein, the opening of second groove 44 is positioned at the opposite side (i.e. the outside of the body 41 of second radiating element 40) of the body 41 of second radiating element 40 with respect to first radiating element 30, and second groove 44 is extended towards first radiating element 30 by side outside the body 41 of second radiating element 40.Wherein, the bearing of trend of second groove 44 can be in corresponding to body 41 outsides of second radiating element 40 and the direction of the minimum range between first radiating element 30.The opening of second groove 45 is positioned at a side (i.e. the inboard of the body 41 of second radiating element 40) of body 41 contiguous second radiating elements 40 of second radiating element 40, and second groove 45 is extended towards the direction away from first radiating element 30 by the inboard of the body 41 of second radiating element 40.In this, second groove 45 can extend in parallel to the bearing of trend in contrast to second groove 44.
Present embodiment can also comprise a holding wire (not shown).Holding wire includes heart yearn, insulating barrier and metal ground plane.The insulating barrier cladding core wire, and on the metal ground plane coated insulation layer.Wherein, heart yearn electrically connects signal feed-in part 20, and metal ground plane is connected in second radiating element 40.Heart yearn is in order to transmit the predetermined band signal.Insulating barrier is in order to heart yearn and exterior insulation.Metal ground plane influences the signal that heart yearn transmits in order to avoid external electromagnetic signal, and metal ground plane has the effect of signal ground.
Signal feed-in part 20 can be by running through substrate 10 on first radiating element 30 on substrate 10 surfaces 11 to substrate 10 another surperficial holes.
The shape of first radiating element 30 can be M shape, can certainly rectangle or geometric figure such as finger-like shape.Second radiating element 40 can be identical with first radiating element, 30 shapes and the position is symmetrical, and certain second radiating element 40 also can be different and asymmetric with first radiating element, 30 shapes.
When the signal of special frequency channel being passed to signal feed-in part 20, and be fed into first radiating element 30, to receive and the above-mentioned signals of radiation by first radiating element 30 via signal feed-in part 20 via the heart yearn of holding wire.In this, first radiating element 30 connects second radiating element 40 to form a circulating loop.Therefore, the frequency band signals that transmits on first radiating element 30 can be passed to second radiating element 40 via first extension 32 and being connected with second extension 33 and being connected of the 4th extension 43 of the 3rd extension 42, to be received and the above-mentioned signal of radiation by second radiating element 40.And, can suppress when above-mentioned frequency band signals transmits the influence that leakage current is caused first radiating element 30 and second radiating element 40 by the design of first groove 34,35, second groove 44,45.
Antenna according to present embodiment, by first radiating element is connected in second radiating element, make first radiating element and second radiating element form circulating loop,, the difficulty of technology is reduced and the raising yield so that high-impedance behavior, high-gain and broadband to be provided.
Please refer to Fig. 3 A and Fig. 3 B.Fig. 3 A and Fig. 3 B are the second embodiment schematic diagram of the present utility model.Wherein, Fig. 3 A is the first surface schematic diagram of second embodiment of the present utility model.Fig. 3 B is the second surface schematic diagram of second embodiment of the present utility model.Shown in Fig. 3 A and Fig. 3 B, the described antenna package of present embodiment contains substrate 50, main signal feeding portion 60, a plurality of subsignal feeding portion 70 and a plurality of Departments of Radiation.
Main signal feeding portion 60 is positioned on first circuit 53 and second circuit 54.
Each Department of Radiation comprises first radiating element 80 and second radiating element 90.First radiating element 80 and second radiating element 90 are positioned at first surface 51.Second radiating element 90 is electrically connected at first circuit 53.Second radiating element 90 is in order to be used as the ground unit of this antenna.Second radiating element 90 is identical with first radiating element, 80 shapes and the position is symmetrical, and second radiating element 90 is connected in first radiating element 80, so that first radiating element 80 and second radiating element 90 form a loop.
First radiating element 80 can have body 81 and first extension 82 and second extension 83 that are extended by body 81 both sides.Second radiating element 90 can have body 91 and the 3rd extension 92 and the 4th extension 93 that are extended by body 91 both sides.Wherein, first extension 82 is connected in the 3rd extension 92, the second extensions 83 and is connected in the 4th extension 93, makes first radiating element 80 and second radiating element 90 form a circulating loop.
First radiating element 80 can also have a plurality of first grooves, to suppress the influence of leakage current to first radiating element 80.Second radiating element 90 has a plurality of second grooves, to suppress the influence of leakage current to second radiating element 90.Second groove and first groove are can shape identical and the position is symmetrical.It is different and asymmetric that certain second groove and first groove also can shapes.
In present embodiment, on the body 81 of first radiating element 80, can have first groove 84,85.In this, first groove 84,85 is arranged in parallel.
Wherein, the opening of first groove 84 is positioned at the opposite side (i.e. the outside of the body 81 of first radiating element 80) of the body 81 of first radiating element 80 with respect to second radiating element 90, and first groove 84 is extended towards second radiating element 90 by the outside of the body 81 of first radiating element 80.Wherein, the bearing of trend of first groove 84 can be in corresponding to body 81 outsides of first radiating element 80 and the direction of the minimum range between second radiating element 90.The opening of first groove 85 is positioned at a side (i.e. the inboard of the body 81 of first radiating element 80) of body 81 contiguous second radiating elements 90 of first radiating element 80, and first groove 85 is extended towards the direction away from second radiating element 90 by the inboard of the body 81 of first radiating element 80.In this, first groove 85 can extend in parallel to the bearing of trend in contrast to first groove 84.
In present embodiment, second groove 94,95 can be arranged on the body 91 of second radiating element 90.In this, second groove 94,95 is arranged in parallel.
Wherein, the opening of second groove 94 is positioned at the opposite side (i.e. the outside of the body 91 of second radiating element 90) of the body 91 of second radiating element 90 with respect to first radiating element 80, and second groove 94 is extended towards first radiating element 80 by the outside of the body 91 of second radiating element 90.Wherein, the bearing of trend of second groove 94 can be in corresponding to body 91 outsides of second radiating element 90 and the direction of the minimum range between first radiating element 80.The opening of second groove 95 is positioned at a side (i.e. the inboard of the body 91 of second radiating element 90) of body 91 contiguous second radiating elements 90 of second radiating element 90, and second groove 95 is extended towards the direction away from first radiating element 80 by the inboard of the body 91 of second radiating element 90.In this, second groove 95 can extend in parallel to the bearing of trend in contrast to second groove 94.
Present embodiment can also comprise a holding wire (not shown).Holding wire includes heart yearn, insulating barrier and metal ground plane.The insulating barrier cladding core wire, and on the metal ground plane coated insulation layer.Wherein, heart yearn electrically connects the main signal feeding portion 60 that is positioned on the second surface 52, and metal ground plane is connected in second radiating element 40.Heart yearn is in order to transmit the predetermined band signal.Insulating barrier is in order to heart yearn and exterior insulation.Metal ground plane influences the signal that heart yearn transmits in order to avoid external electromagnetic signal, and metal ground plane has the effect of signal ground.
Main signal feeding portion 60 can be by running through the hole of substrate 50 to second circuit 54 of second surface 52 on first circuit 53 on substrate 50 first surfaces 51.
The shape of first radiating element 80 can be M shape, can certainly rectangle or geometric figure such as finger-like shape.Second radiating element 90 can be identical with first radiating element, 80 shapes and the position is symmetrical, and certain second radiating element 90 also can be different and asymmetric with first radiating element, 80 shapes.
When second circuit 54 that the signal of special frequency channel is passed to second surface 52 via main signal feeding portion 60 via the heart yearn of holding wire, via subsignal feeding portion 70 frequency band signals is fed into first radiating element 80 again, receives and the above-mentioned frequency band signals of radiation by first radiating element 80.Because first radiating element 80 connects second radiating element 90 to form a circulating loop.Therefore the frequency band signals that transmits on first radiating element 80 can be passed to second radiating element 90 via first extension 82 and being connected with second extension 83 and being connected of the 4th extension 93 of the 3rd extension 92, is received and the above-mentioned signal of radiation by second radiating element 90.And, in the time of can transmitting in order to suppress above-mentioned frequency band signals by first groove 84,85 and second groove 94,95, the influence that leakage current is caused first radiating element 80 and second radiating element 90.
Antenna according to present embodiment, by first radiating element is connected in second radiating element, make first radiating element and second radiating element form circulating loop, the difficulty of technology is reduced and the raising yield so that high impedance, high-gain and broadband to be provided.
Please refer to Fig. 4, Fig. 4 is the measurement figure of the standing-wave ratio of the utility model second embodiment, and in frequency 1710MHz～2170MHz, standing wave ratio maintains below 2 as can be seen.
Please refer to Fig. 5 A, Fig. 5 B, Fig. 5 C, Fig. 5 D and Fig. 5 E, be the center polarization field shape figure of the horizontal plane of the utility model second embodiment, the test of being done with frequency values 1710MHz, 1825MHz, 1940MHz, 2055MHz and 2170MHz respectively.
Please refer to Fig. 6 A, Fig. 6 B, Fig. 6 C, Fig. 6 D and Fig. 6 E, be the center polarization field shape figure of the vertical plane of the utility model second embodiment, the test of being done with frequency values 1710MHz, 1825MHz, 1940MHz, 2055MHz and 2170MHz respectively.
Please refer to table one, table one is respectively Fig. 5 A～Fig. 5 E and tester that Fig. 6 A～Fig. 6 E is put in order.By in the table as can be seen the center of vertical plane and horizontal plane polarization maximum gain connect above more than the 10dBi, and maximum gain can and rise along with the frequency increase.Simultaneously, by the table in as can be seen the bandwidth of vertical plane (BandWidth, angle BW) 30 the degree more than.The angle of the bandwidth of horizontal plane is more than 35 degree.The angle of bandwidth can increase and reduce along with frequency.
| Frequency (MHz) | 1710 | 1825 | 1940 | 2055 | 2170 |
| Horizontal maximum gain (dBi) | 10.0 | 11.5 | 11.1 | 11.7 | 12.4 |
| Vertical maximum gain (dBi) | 10.1 | 11.2 | 11.5 | 12.1 | 12.4 |
| Horizontal bandwidth (degree) | 39.7 | 39.5 | 35.5 | 34.6 | 32.3 |
| Vertical bandwidth (degree) | 47.3 | 44.0 | 44.8 | 38.8 | 35.8 |
Table one, frequency 1710～2170MHz tester
Certainly; the utility model also can have other various embodiments; under the situation that does not deviate from the utility model spirit and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these corresponding changes and distortion all should belong to the protection range of the appended claim of the utility model.
Claims (17)
1, a kind of antenna is characterized in that, comprises:
One substrate has a surface;
One Department of Radiation comprises:
One first radiating element is positioned on this surface; And
One second radiating element, be positioned on this surface, to be used as ground unit, this second radiating element is identical with this first radiating element shape and the position is symmetrical, and this second radiating element is connected in this first radiating element, so that this first radiating element and this second radiating element form a loop; And
One signal feed-in part is positioned on this first radiating element, with feed-in or feed out a signal.
2, antenna according to claim 1 is characterized in that, this first radiating element has a body.
3, antenna according to claim 2, it is characterized in that, this first radiating element has a plurality of first grooves, the bearing of trend of these a plurality of first grooves is corresponding to this body outside of this first radiating element and the direction of the minimum range between this second radiating element, to suppress the influence of leakage current to this first radiating element.
4, antenna according to claim 2 is characterized in that, this first radiating element has by extended one first extension in body both sides and one second extension.
5, antenna according to claim 1 is characterized in that, this second radiating element has a body.
6, antenna according to claim 5, it is characterized in that, this second radiating element has a plurality of second grooves, the bearing of trend of these a plurality of first grooves is corresponding to this body outside of this first radiating element and the direction of the minimum range between this second radiating element, to suppress the influence of leakage current to this first radiating element.
7, antenna according to claim 5 is characterized in that, this second radiating element has by extended one the 3rd extension in body both sides and one the 4th extension.
8, antenna according to claim 1 is characterized in that, this first radiating element and this second radiating element be shaped as M shape.
9, a kind of antenna is characterized in that, comprises:
One substrate has a first surface and a second surface, and this first surface has one first circuit, and this second surface has one second circuit superimposed with this first circuit;
One main signal feeding portion is positioned on this first circuit and this second circuit, with feed-in or feed out a signal;
A plurality of Departments of Radiation, respectively this Department of Radiation comprises:
One first radiating element is positioned at this first surface and is electrically connected at this first circuit; And
One second radiating element, be positioned at this first surface, to be used as ground unit, this second radiating element is identical with this first radiating element shape and the position is symmetrical, and this second radiating element is connected in this first radiating element, so that this first radiating element and this second radiating element form a loop; And
A plurality of subsignal feeding portions are positioned on this second circuit and this first radiating element, with feed-in or feed out this signal.
10, antenna according to claim 9 is characterized in that, this first radiating element has a body.
11, antenna according to claim 10, it is characterized in that, this first radiating element has a plurality of first grooves, the bearing of trend of these a plurality of first grooves is corresponding to this body outside of this first radiating element and the direction of the minimum range between this second radiating element, to suppress the influence of leakage current to this first radiating element.
12, antenna according to claim 9 is characterized in that, this first radiating element has by extended one first extension in body both sides and one second extension.
13, antenna according to claim 9 is characterized in that, this second radiating element has a body.
14, antenna according to claim 13, it is characterized in that, this second radiating element has a plurality of second grooves, the bearing of trend of these a plurality of first grooves is corresponding to this body outside of this first radiating element and the direction of the minimum range between this second radiating element, to suppress the influence of leakage current to this first radiating element.
15, antenna according to claim 9 is characterized in that, this second radiating element has by extended one the 3rd extension in body both sides and one the 4th extension.
16, antenna according to claim 9 is characterized in that, this first radiating element and this second radiating element be shaped as M shape.
17, antenna according to claim 9 is characterized in that, these a plurality of Departments of Radiation are matrix distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201159674U CN201226374Y (en) | 2008-06-25 | 2008-06-25 | Antennae |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201159674U CN201226374Y (en) | 2008-06-25 | 2008-06-25 | Antennae |
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| CN201226374Y true CN201226374Y (en) | 2009-04-22 |
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| CNU2008201159674U Expired - Fee Related CN201226374Y (en) | 2008-06-25 | 2008-06-25 | Antennae |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012119304A1 (en) * | 2011-03-07 | 2012-09-13 | 深圳市嘉瑨电子科技有限公司 | Radiation component of miniature antenna |
| CN102683836A (en) * | 2012-04-28 | 2012-09-19 | 深圳光启创新技术有限公司 | General packet radio service (GPRS) antenna |
-
2008
- 2008-06-25 CN CNU2008201159674U patent/CN201226374Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012119304A1 (en) * | 2011-03-07 | 2012-09-13 | 深圳市嘉瑨电子科技有限公司 | Radiation component of miniature antenna |
| CN102683836A (en) * | 2012-04-28 | 2012-09-19 | 深圳光启创新技术有限公司 | General packet radio service (GPRS) antenna |
| CN102683836B (en) * | 2012-04-28 | 2015-08-19 | 深圳光启创新技术有限公司 | A kind of GPRS antenna |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090422 |