CN2579000Y - Antenna structure of multifrequency printing circuit - Google Patents
Antenna structure of multifrequency printing circuit Download PDFInfo
- Publication number
- CN2579000Y CN2579000Y CN 02259423 CN02259423U CN2579000Y CN 2579000 Y CN2579000 Y CN 2579000Y CN 02259423 CN02259423 CN 02259423 CN 02259423 U CN02259423 U CN 02259423U CN 2579000 Y CN2579000 Y CN 2579000Y
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- ground connection
- radiation conductor
- multifrequency
- microstrip line
- little band
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Abstract
The utility model provides an antenna structure of a multifrequency printed circuit. The utility model comprises a substrate, which adopts an insulated plate shape structure, a plurality of microstrip radiating conductors, each of which is provided with a feed-in terminal on the surface of the substrate, a plurality of grounding radiating conductors, each of which is provided with a grounding terminal on the surface of the substrate, a plurality of feed microstrip lines used for transmitting a signal, which is formed on the surface of the substrate, wherein, a particular frequency oscillation structure can be formed between any one of the microstrip radiating conductors and any one of the grounding radiating conductors, and a multifrequency oscillation mechanism is generated so as to carry out multifrequency signal transmission. The antenna of the utility model can generate the multifrequency oscillation mechanism so as to be applied to the multifrequency signal transmission, the antenna has a light, thin, short, and small structure, the antenna can be easily coupled with a feed-in signal of a coaxial cable or the printed circuit, and the antenna is suitable for a concealed or built-in electrical apparatus mechanism.
Description
Technical field
The utility model relates to antenna, especially a kind of antenna structure that can produce the multifrequency oscillation mechanism with the multifrequency printed circuit that is applied to multiple-frequency signal transmission.
Background technology
Along with advancing by leaps and bounds of wireless communication technique, mobile communication product has just like become the main flow of present stage sci-tech product, comprise mobile phone, PDA(Personal Digital Assistant) and notebook computer etc., these products are with after communication module group combines, can also be connected to Internet, send and receive e-mail and obtain real time informations such as news, stock, to reach the function of resource-sharing and data transmission.
A kind of printing-type of known techniques returns Zhe antenna structure (Printed Sleeve Antenna), be disclosed in U.S. Pat 5,598, in 174, microstrip line ground connection extension quarter-wave and Zhe are returned letter feed-in direction, extend the oscillation mechanism that quarter-wave forms half-wavelength with little band, to reach similar traditional sleeve antenna (coaxial sleeve dipole) effect.The Antenna Design of this known techniques is that transmission with single-frequency is as considering, can't be applied to the signal transmission of multifrequency, and because the left and right sides is asymmetric on the structure, thus its horizontal plane width of cloth to penetrate the field pattern omni-directional relatively poor, and be difficult for doing impedance matching for the microstrip line feed-in mode of general symmetry.
Summary of the invention
Main purpose of the present utility model is to provide a kind of antenna structure of multifrequency printed circuit, and this antenna structure can produce the multifrequency oscillation mechanism so that be applied to the multiple-frequency signal transmission.
Another purpose of the present utility model is to provide a kind of antenna structure of multifrequency printed circuit, and this antenna structure is compact, and FD feed easy and coaxial cable or printed circuit links, and is fit to the electrical apparatus mechanism of concealed or in-building type.
For reaching above-mentioned purpose, the utility model proposes a kind of antenna structure of multifrequency printed circuit, it comprises: a substrate is the platy structure of insulation; A plurality of little band radiation conductors are located at this substrate surface and are respectively had a feed side; A plurality of ground connection radiation conductors are located at this substrate surface and are respectively had an earth terminal; A plurality of feed microstrip lines in order to transmission signals are formed at the surface of substrate; Wherein above-mentioned arbitrary little band radiation conductor can and arbitrary ground connection radiation conductor between form the oscillating structure of a characteristic frequency, and the oscillation mechanism that produces multifrequency is to carry out the multiple-frequency signal transmission.
Wherein the feed microstrip line comprises little band of a feed microstrip line and a feed microstrip line ground connection, and wherein the little band of this feed microstrip line is connected to each other with the feed side of this little band radiation conductor, and the earth terminal of this feed microstrip line ground connection and this ground connection radiation conductor is connected to each other.The little band of this feed microstrip line directly is connected with little band radiation conductor of being located at substrate same side surface; The little band of this feed microstrip line then is connected to each other by a conductive through hole with little band radiation conductor of being located at the different side surfaces of substrate.This feed microstrip line ground connection directly is connected with the ground connection radiation conductor of being located at substrate same side surface; This feed microstrip line ground connection then is connected to each other by a conductive through hole with the ground connection radiation conductor of being located at the different side surfaces of substrate.
Except the junction was connected to each other, all the other all kept suitable gap length between the parallel both sides of being located at this feed microstrip line ground connection of above-mentioned ground connection radiation conductor, itself and this feed microstrip line ground connection.
Little band radiation conductor of the present utility model and the different length of this ground connection radiation conductor or the corresponding different current path length thereon of combination of shape.
Antenna of the present utility model can produce the multifrequency oscillation mechanism so that be applied to the multiple-frequency signal transmission, and this antenna structure is compact, and FD feed easy and coaxial cable or printed circuit links, and is fit to the electrical apparatus mechanism of concealed or in-building type.
Description of drawings
Fig. 1 is that the antenna structure first of multifrequency printed circuit of the present utility model is implemented illustration;
Fig. 2 is that the antenna structure second of multifrequency printed circuit of the present utility model is implemented illustration;
Fig. 3 is that the antenna structure the 3rd of multifrequency printed circuit of the present utility model is implemented illustration;
Fig. 4 is frequency-standing-wave ratio response measurement figure of antenna structure the 3rd embodiment of multifrequency printed circuit of the present utility model;
Fig. 5 is antenna structure the 3rd real H-plane radiation pattern survey map that drags example of multifrequency printed circuit of the present utility model.
Embodiment
See also shown in Figure 1, it is the first enforcement illustration of the antenna structure 11 of multifrequency printed circuit of the present utility model, comprises a substrate 22, little 23, one feed microstrip line ground connection, 24, first little band radiation conductor 25, second little band radiation conductor 26, the first ground connection radiation conductor 27, the second ground connection radiation conductor 28 be with of a feed microstrip line.Above-mentioned microstrip line and conductor all are to be formed at substrate 22 surfaces with the circuit mode of printing, and substrate 22 adopts the circuit board of insulation material.The feed microstrip line is with 23 to be formed with ground connection 24 by little.The feed microstrip line is little, and the one end is connected to the signal end 4 of RF signal source with 23 upper surfaces that are formed at substrate 22, and its other end then is connected to each other with the feed side 251,261 of first, second little band radiation conductor 25,26.24 lower surfaces that are formed at substrate 22 of feed microstrip line ground connection, the one end is connected to the ground connection source 4 of RF signal source, and its other end then is connected to each other with the earth terminal 271,281 of first, second ground connection radiation conductor 27,28.First, second ground connection radiation conductor 27,28 and feed microstrip line ground connection 24 are parallel to each other, and except being connected to each other in the junction, all the other all keep suitable gap length.According to required frequency, the first little band radiation conductor 25 and the first ground connection radiation conductor 27 can be designed to a kind of half wavelength dipole antenna of characteristic frequency by the length or the adjustment of shape, and the second little band radiation conductor 26 and the second ground connection radiation conductor 28 can be designed to the dipole antenna of another kind of characteristic frequency; At this moment, first little band radiation conductor 25 and the second ground connection radiation conductor, 28, second little band radiation conductor 26 and the first ground connection radiation conductor 27 also can form other two dipoles vibration combination.Make antenna structure 11 of the present utility model can produce the oscillation mechanism of multiple frequency, take in the symmetry of geometry, can select required radiation pattern, to be applied to the signal transmission of multifrequency.
See also shown in Figure 2ly, it is of the present utility model second to implement illustration, and it has little 23, one feed microstrip line ground connection 24, two radiation micro belt conductors 37, the four grounded radiation conductor 38 be with of a substrate 22, a feed microstrip line.Above-mentioned two little band radiation conductors 37 are located at the surface of the not homonymy of substrate 22, between then be connected to each other by conductive through hole 39.Similarly, above-mentioned four grounded radiation conductor 38 also can be used said method each other and is connected to each other.Present embodiment also can be by adjusting little band radiation conductor 37 and ground connection radiation conductor 38 length or shape arbitrary little band radiation conductor 37 of making substrate 22 surfaces dipole antenna that can form characteristic frequency with arbitrary ground connection radiation conductor 38, with oscillation mechanism that produces multifrequency and the signal transmission that is applied to multifrequency.
See also shown in Figure 3ly, it is the of the present utility model the 3rd to implement illustration, and the principal character of present embodiment is to make antenna structure 13 can have the function of multiple-frequency signal transmission, mainly is to do further improvement according to the antenna structure design of first embodiment.Its execution mode is at 251,261 places, feed side of first, second little band radiation conductor 25,26 lower surface that two conductive through holes 31 are through to substrate 22 to be set, and forming the 3rd little band radiation conductor 32 and the 4th little band radiation conductor 33 with the circuit mode of printing at lower surface, the feed side 321,331 of this 3rd, the 4th little band radiation conductor 32,33 is connected to each other with conductive through hole 31 respectively; Be provided with the upper surface that two conductive through holes 34 are through to substrate 22 at earth terminal 271,281 places of first, second ground connection radiation conductor 27,28 again, and the 3rd ground connection radiation conductor 35 and the 4th ground connection radiation conductor 36 being set at upper surface, the earth terminal 351,361 and the conductive through hole 34 of this 3rd, the 4th ground connection radiation conductor 35,36 are connected to each other.
This moment is as long as adjust the length and the shape of radiation conductor and earthing conductor, the current path length that little band radiation conductor and ground connection radiation conductor are provided, be 1/2nd or its integral multiple of operative wavelength, just can form the half wavelength dipole antenna of a plurality of characteristic frequency at substrate surface.Compare with first embodiment, present embodiment can provide more frequency range design to select with radiation pattern under the situation that does not increase substrate area.Figure four and Fig. 5 are with the designed multifrequency antenna measurement result of this embodiment framework.This Antenna Design is used frequently in wireless network wireless LAN IEEE 802.11b 2.4GHz and IEEE 802.11a NII5.2GHz, 5.8GHz three.Adopt cheaply that FR4 is a baseplate material, size is 5.6mm * 50mm * 0.8mm.Fig. 4 is the frequency-standing-wave ratio response measurement figure of this antenna.Fig. 5 is the H-Plane measuring radiation field pattern of 2.45GHz, 5.25GHz and 5.8GHz, shows the characteristic and the effect of its multifrequency.
Though the utility model discloses as above with preferred embodiment; right its is not in order to limit the utility model; any those who are familiar with this art; in the spirit and scope that do not break away from the utility model; when can doing a little change and retouching, so the protection range of the utility model is as the criterion when looking claims scope person of defining.
Claims (7)
1. the antenna structure of a multifrequency printed circuit is characterized in that: comprising:
One substrate is the platy structure of insulation;
A plurality of little band radiation conductors are located at this substrate surface and are respectively had a feed side;
A plurality of ground connection radiation conductors are located at this substrate surface and are respectively had an earth terminal;
A plurality of feed microstrip lines in order to transmission signals are formed at the surface of substrate;
Wherein above-mentioned arbitrary little band radiation conductor can and arbitrary ground connection radiation conductor between form the oscillating structure of a characteristic frequency, and the oscillation mechanism that produces multifrequency is to carry out the multiple-frequency signal transmission.
2. the antenna structure of multifrequency printed circuit as claimed in claim 1, it is characterized in that: this feed microstrip line comprises little band of a feed microstrip line and a feed microstrip line ground connection, wherein the little band of this feed microstrip line is connected to each other with the feed side of this little band radiation conductor, and the earth terminal of this feed microstrip line ground connection and this ground connection radiation conductor is connected to each other.
3. the antenna structure of multifrequency printed circuit as claimed in claim 2 is characterized in that: the little band of this feed microstrip line directly is connected with little band radiation conductor of being located at substrate same side surface; The little band of this feed microstrip line then is connected to each other by a conductive through hole with little band radiation conductor of being located at the different side surfaces of substrate.
4. the antenna structure of multifrequency printed circuit as claimed in claim 2 is characterized in that: this feed microstrip line ground connection directly is connected with the ground connection radiation conductor of being located at substrate same side surface; This feed microstrip line ground connection then is connected to each other by a conductive through hole with the ground connection radiation conductor of being located at the different side surfaces of substrate.
5. the antenna structure of multifrequency printed circuit as claimed in claim 2, it is characterized in that: the parallel both sides of being located at this feed microstrip line ground connection of this ground connection radiation conductor, except the junction was connected to each other, all the other all kept suitable gap length between itself and this feed microstrip line ground connection.
6. the antenna structure of multifrequency printed circuit as claimed in claim 1 is characterized in that: the dipole antenna that this little band radiation conductor and the combination of ground connection radiation conductor are constituted, the current path length that provides is 1/2nd or its integral multiple of operative wavelength.
7. the antenna structure of multifrequency printed circuit as claimed in claim 5 is characterized in that: this little band radiation conductor and the different length of this ground connection radiation conductor or the corresponding different current path length thereon of combination of shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02259423 CN2579000Y (en) | 2002-10-09 | 2002-10-09 | Antenna structure of multifrequency printing circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02259423 CN2579000Y (en) | 2002-10-09 | 2002-10-09 | Antenna structure of multifrequency printing circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2579000Y true CN2579000Y (en) | 2003-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02259423 Expired - Lifetime CN2579000Y (en) | 2002-10-09 | 2002-10-09 | Antenna structure of multifrequency printing circuit |
Country Status (1)
| Country | Link |
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| CN (1) | CN2579000Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100397704C (en) * | 2004-11-25 | 2008-06-25 | 刘正芳 | Multiple frequency-band planar antenna |
| CN100454662C (en) * | 2003-12-26 | 2009-01-21 | 日本电气株式会社 | Flat wideband antenna |
| WO2013044573A1 (en) * | 2011-09-30 | 2013-04-04 | 中兴通讯股份有限公司 | Printed antenna and mobile communication device |
| CN114039196A (en) * | 2021-10-28 | 2022-02-11 | 深圳市英佳创电子科技有限公司 | High-performance 4G antenna |
-
2002
- 2002-10-09 CN CN 02259423 patent/CN2579000Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100454662C (en) * | 2003-12-26 | 2009-01-21 | 日本电气株式会社 | Flat wideband antenna |
| CN100397704C (en) * | 2004-11-25 | 2008-06-25 | 刘正芳 | Multiple frequency-band planar antenna |
| WO2013044573A1 (en) * | 2011-09-30 | 2013-04-04 | 中兴通讯股份有限公司 | Printed antenna and mobile communication device |
| US9466883B2 (en) | 2011-09-30 | 2016-10-11 | Zte Corporation | Printed antenna and mobile communication equipment |
| CN114039196A (en) * | 2021-10-28 | 2022-02-11 | 深圳市英佳创电子科技有限公司 | High-performance 4G antenna |
| CN114039196B (en) * | 2021-10-28 | 2024-02-09 | 深圳市英佳创电子科技有限公司 | High-performance 4G antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Peng Peng Electronics (Kunshan) Co., Ltd. Assignor: Zhengwen Sci-Tech Co., Ltd. Contract fulfillment period: 2009.1.1 to 2014.1.1 Contract record no.: 2009990001002 Denomination of utility model: Antenna structure of multifrequency printing circuit Granted publication date: 20031008 License type: Exclusive license Record date: 20090907 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.1.1 TO 2014.1.1; CHANGE OF CONTRACT Name of requester: ZHENGPENG ELECTRONICS( KUNSHAN ) CO., LTD. Effective date: 20090907 |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20121009 Granted publication date: 20031008 |