CN201438507U - Antenna structure provided with series capacitance effect - Google Patents
Antenna structure provided with series capacitance effect Download PDFInfo
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- CN201438507U CN201438507U CN2009201597175U CN200920159717U CN201438507U CN 201438507 U CN201438507 U CN 201438507U CN 2009201597175 U CN2009201597175 U CN 2009201597175U CN 200920159717 U CN200920159717 U CN 200920159717U CN 201438507 U CN201438507 U CN 201438507U
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- series capacitance
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Abstract
An antenna structure provided with series capacitance effect is characterized in that at least one first metal flat plate is arranged on a metal flat plane antenna, and a second metal flat plate is arranged adjacent to the first metal flat plate without being connected therewith, so as to achieve the series capacitance effect. In addition, a microstrip line is utilized to extend an extending arm out of the antenna or the second metal flat plate, by choosing grounding or un-grounding, the matched impedance value of the antenna structure can be adjusted. Therefore, by achieving the matched impedance, the bandwidth and the efficiency is increased, and inductance and capacitance values can be adjusted at will.
Description
Technical field
The utility model refers to a kind of antenna structure with series capacitance effect especially about a kind of antenna structure innovative design.
Background technology
Because the development of wireless communication technique is quick, in action under the requirement of equipment volume consolidationization, the metal flat antenna of multifrequency be that the main flow element of mobile phone or notebook computer is to receive or to launch wireless signal.
Traditionally, the metal flat antenna is connected with circuit board in the action equipment, is to connect by a SMT element.Because general SMT element is designed to some fixing standard value impedances, makes antenna still need and wants a match circuit to adjust electric capacity and inductance value, this will cause the inconvenience of Antenna Design, and limit the frequency range and the efficient of antenna, remain to be improved.
In applicant's United States Patent (USP) 6,542,123 (with Chinese T W application case numbers 90215908) " wideband concealed antenna " preceding case, provide at antenna and extended a concave section, a reflexed section and a tab, for adjusting matching frequency.Institute's use means in right this case can cause the prolongation of antenna, and adjustment electric capacity and inductance value that can't be suitable, and are still restricted on Antenna Design.
Summary of the invention
The utility model provides a kind of antenna structure of tool series capacitance effect, overcoming the defective of above-mentioned traditional structure, by forming the series capacitance effect, reaches impedance matching, allows frequency range and efficient increase, and inductance, capacitance can be adjusted arbitrarily.
The antenna structure of a kind of tool series capacitance of the utility model effect is characterized in that, comprising:
One in order to receive or to launch the antenna of wireless signal, is the metal flat antenna, has one first metal plate on it at least; And
One second metal plate, with this first metal plate near but be not connected, form series capacitance.
Wherein, antenna extends one in order to ground connection, and then makes this antenna structure form first adjutage of shunt inductance.
Wherein, antenna forms one second adjutage along this first metal plate periphery, and this second adjutage is earth-free, and this antenna structure forms shunt capacitance.
Wherein, this first and second adjutage constitutes with microstrip line.
Wherein, antenna is arranged on the printed circuit board (PCB), and this first and second metal plate is relatively arranged on respectively on two surfaces of this printed circuit board (PCB).
Wherein, antenna extends one in order to ground connection, and then forms first adjutage of shunt inductance effect.
Wherein, second metal plate extends one in order to ground connection, and then makes this antenna structure form second adjutage of series inductance effect.
Wherein, this first and second adjutage constitutes with microstrip line.
A kind of antenna structure of tool series capacitance effect is characterized in that, comprising:
One in order to receive or to launch the antenna of wireless signal, is the metal flat antenna, has one first metal plate on it at least;
One second metal plate, approaching with this first metal plate, have a feed-in metal plate and a grounded metal flat board, connect with a breakover element therebetween; This feed-in metal plate extends one in order to sending into signal, and coupling transmits the load point of less radio-frequency RF signal to this antenna, and this grounded metal flat board extends an earth point; And
One deck support plate is arranged between this antenna and this second metal plate;
Folded this layer support plate constitutes electric capacity in the middle of this antenna and second metal plate;
This breakover element has in order to adjust the turned on or off of this antenna structure frequency.
Wherein, breakover element is a diode; This load point has for this diode current flow and less radio-frequency RF signal of closing and direct current DC signal.
Wherein, breakover element is a tunable capacitor.
A kind of antenna structure of tool series capacitance effect is characterized in that, comprising:
One in order to receive or to launch the antenna of less radio-frequency signal, is the metal flat antenna, has one first metal plate on it at least, and be provided with a ground bottom surface in the bottom;
One second metal plate, approaching with this first metal plate, have a feed-in metal plate and and connect metal plate, connect with a breakover element therebetween; This feed-in metal plate extends one in order to sending into signal, and coupling transmits the load point of less radio-frequency RF signal to this antenna, and this connection metal plate extends a tie point to connect first metal plate of this antenna; And
One deck support plate is arranged between this antenna and this second metal plate;
Folded this layer support plate constitutes electric capacity in the middle of this antenna and second metal plate;
This breakover element has in order to adjust the turned on or off of this antenna structure frequency.
Wherein, breakover element is a tunable capacitor.
The utility model is to finish with the principle of microstrip line with the matching process of antenna structure, and this antenna structure can reach impedance matching, allow frequency range and efficient increase, and inductance, capacitance can be adjusted arbitrarily, connect with the SMT element unlike the traditional antenna structure, impedance that can only the selection standard value.So the utility model on Antenna Design, has suitable advantage.
The person of advancing, the utility model provides a kind of antenna structure of tool series capacitance effect, and it ties up in second metal plate of antenna structure of tool series capacitance effect, with a feed-in metal plate and a grounded metal is dull and stereotyped constitutes, connects with a breakover element therebetween.This feed-in metal plate extends a load point, and this grounded metal flat board extends an earth point.Signal is sent into from the load point of this second metal plate, utilizes the middle folded one deck support plate of this antenna and second metal plate, forms capacity effect, transmits the less radio-frequency signal to this antenna from the load point coupling of this second metal plate; Again, this breakover element may be selected to conducting or closes, to adjust the frequency of this antenna structure.
Below, will structure of the present utility model and effect be described in detail according to the embodiment shown in the drawing.
Description of drawings
Fig. 1 is the outside drawing of first kind of embodiment of the utility model,
Fig. 2 is the standing-wave ratio of Fig. 1 embodiment,
Fig. 3 is the outside drawing of second kind of embodiment of the utility model,
Fig. 4 is the standing-wave ratio of Fig. 2 embodiment,
Fig. 5 is the stereo appearance figure of the third embodiment of the utility model,
Fig. 6 is the front view of the third embodiment of the utility model, and wherein support plate is removed,
Fig. 7 is the rear view of the third embodiment of the utility model, and wherein support plate is removed,
Fig. 8 is the standing-wave ratio figure of the third embodiment of the utility model,
Fig. 9 is the stereo appearance figure of the 4th kind of embodiment of the utility model,
Figure 10 is the front view of the 4th kind of embodiment of the utility model, and wherein support plate is removed,
Figure 11 is the standing-wave ratio figure of the 4th kind of embodiment of the utility model.
Embodiment
See also Fig. 1, be the antenna structure of first kind of embodiment of the utility model, constituted, have on the circuit board 3 on ground and two elements is arranged at one with an antenna 1 and one second metal plate 2.
The person of advancing, antenna 1 extends one first adjutage 11 with ground connection, makes antenna structure form the shunt inductance effect.Again, antenna 1 forms one second adjutage 12 along these first metal plate, 10 peripheries, and this second adjutage 12 is earth-free, makes antenna structure form the shunt capacitance effect.And first and second adjutage 11 and 12 all can be made by microstrip line.
Be the standing-wave ratio figure of Fig. 1 embodiment shown in Fig. 2, be shown as a good multiple frequency antenna structure.
See also Fig. 3, be second kind of embodiment of the present utility model, similarly, constituted, have on the circuit board 6 on ground and two elements is arranged at one with an antenna 4 and one second metal plate 5.
The person of advancing, antenna 4 extends one first adjutage 41 with ground connection, makes antenna structure form the shunt inductance effect.In addition, second metal plate 5 extends one second adjutage 52 with ground connection, makes antenna structure form the series inductance effect.First and second adjutage 41 and 52 is to make with microstrip line.
Be the standing-wave ratio figure of Fig. 3 embodiment shown in Fig. 4, be shown as a good multiple frequency antenna structure.
Apparently, the utility model is with second metal plate in the antenna structure, first and second adjutage etc., all make with microstrip line, make that the matching process of antenna structure is to finish with the principle of microstrip line to reach impedance matching, allow frequency range and efficient increase, and the inductance of antenna structure, capacitance can be adjusted arbitrarily, connect with the SMT element unlike the traditional antenna structure, impedance that can only the selection standard value.So the utility model on Antenna Design, has suitable advantage.
See also Fig. 5 to Fig. 7, be the third embodiment of the present utility model, it provides a kind of antenna structure of tool series capacitance effect, is mainly constituted with an antenna 301, one second metal plate 302 and one deck support plate 303.
Antenna structure of the present utility model is set on the ground plane 304.
One deck support plate 303 is arranged between antenna 301 and this second metal plate 302.Make first metal plate 3011 alternate with second metal plate 302 and establish.
In the antenna structure of the present utility model, signal is sent into from the load point 3021a of second metal plate 302, utilize antenna 301 and second metal plate, 302 middle folded one deck support plates 303, form capacity effect, transmit less radio-frequency RF signal to antenna 301 from the load point 3021a coupling of second metal plate 302.
The utility model has mainly been set up breakover element 3023 compared to first kind of embodiment, and it can be a diode or a tunable capacitor.Utilize breakover element 3023 to may be selected to conducting or close, to adjust the frequency of this antenna structure.
Referring to shown in Figure 8, if the breakover element 3023 that uses is a diode, then load point 3021a still has direct current DC signal confession diode current flow and closes purposes except less radio-frequency RF signal.For example, when voltage during greater than 0.7 volt, breakover element 3023 diodes are conducting, otherwise, when voltage is then closed during less than 0.7 volt.The characteristic of utilizing breakover element 3023 diode current flows and closing forms two kinds of different stationary wave characteristic results among Fig. 8.
Certainly, breakover element 3023 of the present utility model also can use the electric capacity that varies in size to connect support plate 303 back side feed-in metal plates 3021 and dull and stereotyped 3022 end points of grounded metal, also can adjust the antenna stationary wave characteristic.
In Fig. 8, use power supply bias voltage breakover element 3023 diodes to carry out the conducting of back side feed-in metal plate 3021 and grounded metal flat board 3022 and close, antenna can be formed and two frequencies (700MHz～824MHz and 824MHz～960MHz) can be adjusted.
In addition, if use tunable capacitor to carry out the breakover element 3023 of back side feed-in metal plate 3021 and grounded metal flat board 3022, then standing-wave ratio will be all adjustable in the frequency range between ON (960MHz) and the OFF (700MHz).
The person of advancing referring to Fig. 9 to Figure 10, is the 4th kind of embodiment of the present utility model, and it provides a kind of antenna structure of tool series capacitance effect, is mainly constituted with an antenna 405, one second metal plate 406 and one deck support plate 407.
Antenna structure of the present utility model is set on the ground plane 408.
One deck support plate 407 is arranged between antenna 405 and this second metal plate 406.Make first metal plate 4051 alternate with second metal plate 406 and establish.
With the third embodiment of aforesaid the utility model, in antenna structure, signal is sent into from the load point 4061a of second metal plate 406, utilize antenna 405 and second metal plate, 406 middle folded one deck support plates 407, form capacity effect, transmit less radio-frequency RF signal to antenna 405 from the load point 4061a coupling of second metal plate 406.
Referring to Figure 11, the utility model breakover element 4063 in this embodiment can be a tunable capacitor.Utilize breakover element 4063 to may be selected to conducting or close, to adjust the frequency of this antenna structure.Using breakover element 4063 tunable capacitors to connect two-end-point can adjust the stationary wave characteristic of antenna structure, and as shown in figure 11, standing-wave ratio will be all adjustable in the frequency range between ON (960MHz) and the OFF (700MHz).
Claims (13)
1. the antenna structure of a tool series capacitance effect is characterized in that, comprising:
One in order to receive or to launch the antenna of wireless signal, is the metal flat antenna, has one first metal plate on it at least; And
One second metal plate, with this first metal plate near but be not connected, form series capacitance.
2. according to the antenna structure of the described tool series capacitance of claim 1 effect, it is characterized in that antenna extends one in order to ground connection, and then make this antenna structure form first adjutage of shunt inductance.
3. according to the antenna structure of the described tool series capacitance of claim 2 effect, it is characterized in that antenna forms one second adjutage along this first metal plate periphery, this second adjutage is earth-free, and this antenna structure forms shunt capacitance.
4. according to the antenna structure of the described tool series capacitance of claim 3 effect, it is characterized in that this first and second adjutage constitutes with microstrip line.
5. according to the antenna structure of the described tool series capacitance of claim 1 effect, it is characterized in that antenna is arranged on the printed circuit board (PCB), and this first and second metal plate is relatively arranged on respectively on two surfaces of this printed circuit board (PCB).
6. according to the antenna structure of the described tool series capacitance of claim 5 effect, it is characterized in that antenna extends one in order to ground connection, and then form first adjutage of shunt inductance effect.
7. according to the antenna structure of the described tool series capacitance of claim 6 effect, it is characterized in that second metal plate extends one in order to ground connection, and then make this antenna structure form second adjutage of series inductance effect.
8. according to the antenna structure of the described tool series capacitance of claim 7 effect, it is characterized in that this first and second adjutage constitutes with microstrip line.
9. the antenna structure of a tool series capacitance effect is characterized in that, comprising:
One in order to receive or to launch the antenna of wireless signal, is the metal flat antenna, has one first metal plate on it at least;
One second metal plate, approaching with this first metal plate, have a feed-in metal plate and a grounded metal flat board, connect with a breakover element therebetween; This feed-in metal plate extends one in order to sending into signal, and coupling transmits the load point of less radio-frequency RF signal to this antenna, and this grounded metal flat board extends an earth point; And
One deck support plate is arranged between this antenna and this second metal plate;
Folded this layer support plate constitutes electric capacity in the middle of this antenna and second metal plate;
This breakover element has in order to adjust the turned on or off of this antenna structure frequency.
10. according to the antenna structure of the described tool series capacitance of claim 9 effect, it is characterized in that breakover element is a diode; This load point has for this diode current flow and less radio-frequency RF signal of closing and direct current DC signal.
11. the antenna structure according to the described tool series capacitance of claim 9 effect is characterized in that, breakover element is a tunable capacitor.
12. the antenna structure of a tool series capacitance effect is characterized in that, comprising:
One in order to receive or to launch the antenna of less radio-frequency signal, is the metal flat antenna, has one first metal plate on it at least, and be provided with a ground bottom surface in the bottom;
One second metal plate, approaching with this first metal plate, have a feed-in metal plate and and connect metal plate, connect with a breakover element therebetween; This feed-in metal plate extends one in order to sending into signal, and coupling transmits the load point of less radio-frequency RF signal to this antenna, and this connection metal plate extends a tie point to connect first metal plate of this antenna; And
One deck support plate is arranged between this antenna and this second metal plate;
Folded this layer support plate constitutes electric capacity in the middle of this antenna and second metal plate;
This breakover element has in order to adjust the turned on or off of this antenna structure frequency.
13. the antenna structure according to the described tool series capacitance of claim 12 effect is characterized in that, breakover element is a tunable capacitor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201597175U CN201438507U (en) | 2009-02-06 | 2009-06-12 | Antenna structure provided with series capacitance effect |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920004181.X | 2009-02-06 | ||
| CN2009201597175U CN201438507U (en) | 2009-02-06 | 2009-06-12 | Antenna structure provided with series capacitance effect |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201438507U true CN201438507U (en) | 2010-04-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201597175U Expired - Lifetime CN201438507U (en) | 2009-02-06 | 2009-06-12 | Antenna structure provided with series capacitance effect |
Country Status (1)
| Country | Link |
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| CN (1) | CN201438507U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104425870A (en) * | 2013-08-22 | 2015-03-18 | 深圳富泰宏精密工业有限公司 | Wideband antenna and wireless communication device having the same |
-
2009
- 2009-06-12 CN CN2009201597175U patent/CN201438507U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104425870A (en) * | 2013-08-22 | 2015-03-18 | 深圳富泰宏精密工业有限公司 | Wideband antenna and wireless communication device having the same |
| CN104425870B (en) * | 2013-08-22 | 2019-01-25 | 深圳富泰宏精密工业有限公司 | Wide frequency antenna and wireless communication device with the wide frequency antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: AUDEN COMMUNICATIONS + MULTIMEDIA TECHNOLOGY (KUNS Free format text: FORMER OWNER: YAODENG SCIENCE AND TECHONLOGY CO., LTD Effective date: 20110607 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: TAOYUAN COUNTY, TAIWAN, CHINA TO: 215313 NO. 15, YINGBIN ROAD, LUYANG TOWN, KUNSHAN CITY, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110607 Address after: 215313 Jiangsu Province Lu Yang Kunshan City Yingbin Road No. 15 Patentee after: YAODENG DIANTONG TECHNOLOGY (KUNSHAN) CO., LTD. Address before: China Taiwan Taoyuan County Patentee before: Yaodeng Science and Techonlogy Co., Ltd |
|
| CX01 | Expiry of patent term |
Granted publication date: 20100414 |
|
| CX01 | Expiry of patent term |