CN201138684Y - Frame shaped element antenna with multiple frequencies - Google Patents
Frame shaped element antenna with multiple frequencies Download PDFInfo
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- CN201138684Y CN201138684Y CN 200820030485 CN200820030485U CN201138684Y CN 201138684 Y CN201138684 Y CN 201138684Y CN 200820030485 CN200820030485 CN 200820030485 CN 200820030485 U CN200820030485 U CN 200820030485U CN 201138684 Y CN201138684 Y CN 201138684Y
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Abstract
A multiple frequency frame-shape element antenna is provided, which is applied in a radio communication system operated under multiple frequency. The utility model can not only be adopted as an independent antenna, but also a basic radiating element to form an antenna system, in particular to a mobile communication device with multiple communication system and a communication system with multiple networks. The antenna comprises a circular dipole (1) that is positioned at the outermost layer and works at a low frequency range, a circular dipole (2) that is positioned at the middle layer and works at a middle frequency range, a circular dipole (3) that is positioned at the innermost layer and works at a high frequency range. A multiple frequency circular dipole antenna adopts any structure with balance feeding to feed via a symmetrical feeding point (4). When the circular dipole (3) that is positioned at the middle layer and works at a middle frequency section is not provided with a dipole with higher frequency range, the circular dipole will be filled fully to become a metallic strip dipole.
Description
Technical field
Multifrequency shaped as frame element antenna need to be used to the wireless communication system of multiple-frequency operation, both can be used as independently antenna use and also can be used as basic radiating element formation antenna system, especially be suitable for having the mobile device and net in the communication system of unifying of multiple communication system more.Belong to the technical field that antenna is made.
Background technology
In recent years, wireless communication technology has obtained fast-developing and has obtained extensive use, and the radio communication system of various different purposes constantly occurs, and every kind of radio communication system has different operating frequencies usually.Thereby the occasion of the communication system of different frequency range different mode coexistence and to have the demand of novel mobile device of various modes also more and more is as Wireless Telecom Equipment, TD-SCDMA and the WLAN of band satellite positioning functions and the WiMax mobile device etc. of platform altogether.In addition, in order to save construction investment, the communication system construction schemes of many net unifications have been subjected to increasing attention and have been widely adopted, as the indoor distribution communication network of many nets unifications, work in the antenna for base station of a plurality of frequency ranges etc.Therefore,, make antenna can realize multiband work, become an important research direction of field of antenna in order to satisfy the constantly needs of the communication technology of development.The some shortcomings part often appears in common multifrequency antenna, can produce a plurality of working bands as fractal antenna, but the resonance frequency of each frequency band is pressed the index law distribution usually, and working band is difficult for control flexibly; Often can only realize the working band of fixed qty etc. with a kind of antenna of form.
Summary of the invention
Technical problem: the purpose of this utility model is to propose a kind of multifrequency shaped as frame element antenna, uses with a kind of antenna of the form number of frequency bands of Control work frequency band and multiple-frequency operation flexibly just, and realization reaches the requirement of multifrequency application with a kind of antenna.The antenna of being invented simultaneously also has simple in structure, and applicability is wide, is easy to advantages such as processing.
Technical scheme: multifrequency shaped as frame element antenna of the present utility model comprises the ring shaped dipole that is operated in intermediate bands that is positioned at the outermost ring shaped dipole that is operated in low-frequency range, is positioned at the intermediate layer, the ring shaped dipole that is operated in high band that is positioned at innermost layer; Multi-frequency ring shaped dipole antenna adopts the structure of any balanced feeding to carry out feed by the symmetric feeds point, when wherein the ring shaped dipole that is operated in high band of innermost layer does not have the dipole of high band more within it, can become the metal band dipole with tamping in the ring.The shape of ring that describedly be positioned at the outermost ring shaped dipole that is operated in low-frequency range, is positioned at the ring shaped dipole that is operated in intermediate bands in intermediate layer also can be pyriform or ellipse.The outermost ring shaped dipole that is operated in low-frequency range, the band of end that is positioned at the ring shaped dipole that is operated in intermediate bands in intermediate layer also can disconnect or remove, and form the hatch frame form.The described ring shaped dipole that is operated in intermediate bands that is positioned at the intermediate layer is made up of the multi-layer annular dipole.
Beneficial effect: compared with prior art, the utlity model has following advantage:
1. in the utility model antenna, each ring shaped dipole that is operated in each frequency has shape similitude to a certain degree, and is simple in structure, be easy to processing and manufacturing.Though its structure of fractal antenna has self-similarity thereby a plurality of resonance frequencys can be arranged, the interval of each operating frequency has certain rules, can not be provided with flexibly.Compare with fractal antenna, antenna of the present invention can be provided with needed operating frequency and bandwidth flexibly by length and the width that changes different ring shaped dipoles.As two or more different resonance frequencys can be set flexibly, or in three-frequency antenna with adjacent two resonance frequencys near being provided with, form a broadband and a narrow-band antenna, or with a broad-band antenna of three the staggered tuning formation of resonance frequency etc.
2. common multifrequency antenna, the version different often with three-frequency antenna as double frequency, dual-band antenna can not directly expand to three frequency or multifrequency antennas by simple way, increase the working band number, need reselect antenna form, proves again and designs.And can be only by increasing the working band number that the ring shaped dipole number gets final product extended antenna on intrinsic basis with method of the present invention, it be may command that the resonance frequency of each frequency band only needs the length/width by regulating ring shaped dipole.Have simplicity of design, flexibly, advantage easily.
3. the form that antenna of the present utility model is nested with multi-ringed dipole has kept the advantage of dipole antenna when having realized multifrequency design flexibly, be fit to be connected with various balanced feed structure, both be fit to traditional three-dimensional structure and high power applications, multi-frequency ring shaped dipole as coaxial feed, also be suitable as the antenna of bidimensional or bidimensional half hitch structure, as the multi-frequency ring shaped dipole structure of printing form.
4. the terminal band of ring shaped dipole is disconnected or removal, make structure more flexible, applicability is wider.As when each working band is nearer apart, removes terminal band and make space constraint reduce the easier realization of designing requirement with influencing each other.
5. antenna volume is small and exquisite, and area (volume) utilance height can use as antenna separately, is particularly suitable for using in mobile device.Also can be used as basic radiating element and constitute antenna system.Compare with general multifrequency antenna and on the application scenario, to have extensive applicability and flexibility.
Description of drawings
Fig. 1 is multifrequency (three a frequently) ring shaped dipole antenna structural representation,
Fig. 2 is the multi-form structural representation of the terminal band of oscillator, and wherein Fig. 2 a is an open annular, and Fig. 2 b is a vertical bar shaped.
Fig. 3 is a kind of three frequency ring shaped dipole antenna and feed structure schematic diagrames,
Fig. 4 is actual antennas structure and the size of embodiment 1, wherein, and W1=18mm, L1=31mm; W2=12mm, L2=26.5mm; W3=6mm, L3=20mm; The strip width of ring is W4=1.5mm; Feeder line width W 5=2mm, W6=2.7mm; Dielectric-slab thickness h=1mm.
Fig. 5 is the test result of antenna input reflection coefficient,
Fig. 6 is E face, the H surface radiation directional diagram test result of embodiment antenna.Wherein Fig. 6 (a) is the 1.8GHz antenna pattern, and Fig. 6 (b) is the 2.4GHz antenna pattern, and Fig. 6 (c) is the 3.5GHz antenna pattern.
Have among the above figure: be operated in the ring shaped dipole 1 of low-frequency range, be operated in the ring shaped dipole 2 of intermediate bands, be operated in the ring shaped dipole 3 of high band, symmetric feeds point 4, gradual transition transmission line 5, dielectric substrate 6.
Embodiment
Common dipole antenna arm broadening and remove the metal of mid portion, form the annular of metal band, the looping dipole, connect with one or more analog structures in the vacant part that surrounds by metal ring simultaneously, form a plurality of ring shaped dipoles, each metal ring dipole is corresponding to a working band, just constituted multi-frequency ring shaped dipole antenna shown in Figure 1, be that (shape of ring is not limited to shown in the figure three multi-frequency ring shaped dipole antennas of working frequently shown in the figure, also can be other shape such as pyriform, ellipse waits other shape), 1 for being operated in the ring shaped dipole of low-frequency range, 2 for being operated in the ring shaped dipole of intermediate bands, 3 for being operated in the ring shaped dipole of high band, when wherein the ring shaped dipole 3 of innermost layer does not have the dipole of high band more within it, also can become the metal band dipole shown in 3 among Fig. 1 with tamping in the ring, 4 is the symmetric feeds point of multi-frequency ring shaped dipole antenna, multi-frequency ring shaped dipole antenna can adopt the structure of any balanced feeding to carry out feed by distributing point 4, as parallel wire, the coaxial line of band fluting Ba Lun, the coaxial line of half-wavelength bypass type Ba Lun (U-shaped line Ba Lun) etc., in addition, also the band of each ring type vibrator end among Fig. 1 can be disconnected or remove, form version as shown in Figure 2.
Be operated in the ring shaped dipole 1 of low-frequency range among Fig. 1, be operated in the ring shaped dipole 2 of intermediate bands, be operated in the ring shaped dipole 3 of high band, when wherein the ring shaped dipole that is operated in high band 3 of innermost layer did not have the dipole of high band more within it, the ring part can be tamped became the metal band dipole shown in the ring shaped dipole 3 that is operated in high band among Fig. 1.
Fig. 3 is a kind of three frequency ring shaped dipole antenna and feed structures that adopt printing circuit structure, is operated in the ring shaped dipole 1 of low-frequency range, is operated in the ring shaped dipole 2 of intermediate bands, and the ring shaped dipole 3, the symmetric feeds that are operated in high band are put 4 same Fig. 1; By the gradual transition transmission line 5 of unbalanced microstrip line to the parallel wire of balance.The balance end of transmission line (parallel double line end) is connected with symmetric feeds point 4.
Embodiment 1 Fig. 4 has provided a kind of three ring shaped dipole antenna and feed structures frequently of the print structure by little band-two-wire transition line Ba Lun feed.Among Fig. 4, three ring shaped dipoles from outside to inside are respectively the ring shaped dipole that is operated in 1.8GHz, be operated in the ring shaped dipole of 2.4GHz and be operated in the ring shaped dipole of 3.5GHz.Antenna is by the gradual transition transmission line feed of unbalanced microstrip line to the parallel wire of balance, and parallel double line end and antenna feed point are connected to antenna feed.Whole antenna feeder adopts planar circuit technology to be produced on the dielectric substrate.It is that the dielectric constant of 1mm is 2.65 the two-sided copper clad plate of glass fibre-polytetrafluoroethylene that example medium substrate has adopted thickness.The example antenna is made on above-mentioned substrate by size shown in Figure 4.Fig. 5 is the test result at actual antennas input port place reflection coefficient.The radiation pattern of Fig. 6 on the operating frequency of three frequency bands, recording respectively.
Claims (4)
1. multifrequency shaped as frame element antenna is characterized in that this antenna comprises the ring shaped dipole that is operated in intermediate bands (2) that is positioned at the outermost ring shaped dipole (1) that is operated in low-frequency range, is positioned at the intermediate layer, the ring shaped dipole that is operated in high band (3) that is positioned at innermost layer; Multi-frequency ring shaped dipole antenna adopts the structure of any balanced feeding to carry out feed by symmetric feeds point (4), when wherein the ring shaped dipole that is operated in high band (3) of innermost layer did not have the dipole of high band more within it, tamping in will encircling became the metal band dipole.
2. multifrequency shaped as frame element antenna according to claim 1, it is characterized in that describedly being positioned at the outermost ring shaped dipole (1) that is operated in low-frequency range, be positioned at the intermediate layer the ring shaped dipole that is operated in intermediate bands (2) ring be shaped as pyriform or ellipse.
3. multifrequency shaped as frame element antenna according to claim 1 and 2, the band of end that it is characterized in that describedly being positioned at the outermost ring shaped dipole (1) that is operated in low-frequency range, is positioned at the ring shaped dipole that is operated in intermediate bands (2) in intermediate layer disconnects or removes, and forms the hatch frame form.
4. multifrequency shaped as frame element antenna according to claim 1 is characterized in that the described ring shaped dipole that is operated in intermediate bands (2) that is positioned at the intermediate layer is made up of the multi-layer annular dipole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820030485 CN201138684Y (en) | 2008-01-08 | 2008-01-08 | Frame shaped element antenna with multiple frequencies |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200820030485 CN201138684Y (en) | 2008-01-08 | 2008-01-08 | Frame shaped element antenna with multiple frequencies |
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| Publication Number | Publication Date |
|---|---|
| CN201138684Y true CN201138684Y (en) | 2008-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 200820030485 Expired - Lifetime CN201138684Y (en) | 2008-01-08 | 2008-01-08 | Frame shaped element antenna with multiple frequencies |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101222087B (en) * | 2008-01-08 | 2011-06-22 | 东南大学 | Multi-frequency ring shaped dipole antenna |
| CN102598410A (en) * | 2009-10-30 | 2012-07-18 | 莱尔德技术股份有限公司 | Omnidirectional multi-band antennas |
| CN102709682A (en) * | 2011-08-17 | 2012-10-03 | 菲力克斯电子（宁波）有限公司 | Television antenna |
| CN104409843A (en) * | 2014-12-03 | 2015-03-11 | 北京航空航天大学 | Four-ring small-size folded dipole antenna with Peano fractals |
| CN105206935A (en) * | 2014-05-27 | 2015-12-30 | 深圳光启智能光子技术有限公司 | Omnidirectional antenna |
| CN105514590A (en) * | 2016-02-19 | 2016-04-20 | 广东中元创新科技有限公司 | High-gain dual-annular element antenna |
| CN106450797A (en) * | 2015-08-06 | 2017-02-22 | 启碁科技股份有限公司 | Antenna system |
| CN106450706A (en) * | 2016-12-16 | 2017-02-22 | 杨明 | Broadband dual-polarized magnetoelectric dipole base station antenna |
| CN114374088A (en) * | 2022-01-21 | 2022-04-19 | 西安交通大学 | Plane ultra-wideband ground penetrating radar antenna |
-
2008
- 2008-01-08 CN CN 200820030485 patent/CN201138684Y/en not_active Expired - Lifetime
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101222087B (en) * | 2008-01-08 | 2011-06-22 | 东南大学 | Multi-frequency ring shaped dipole antenna |
| CN102598410A (en) * | 2009-10-30 | 2012-07-18 | 莱尔德技术股份有限公司 | Omnidirectional multi-band antennas |
| CN102598410B (en) * | 2009-10-30 | 2015-01-07 | 莱尔德技术股份有限公司 | Omnidirectional multi-band antennas |
| TWI470873B (en) * | 2009-10-30 | 2015-01-21 | Laird Technologies Inc | Omnidirectional multi-band antennas |
| CN102709682A (en) * | 2011-08-17 | 2012-10-03 | 菲力克斯电子（宁波）有限公司 | Television antenna |
| CN105206935A (en) * | 2014-05-27 | 2015-12-30 | 深圳光启智能光子技术有限公司 | Omnidirectional antenna |
| CN104409843A (en) * | 2014-12-03 | 2015-03-11 | 北京航空航天大学 | Four-ring small-size folded dipole antenna with Peano fractals |
| CN104409843B (en) * | 2014-12-03 | 2017-04-12 | 北京航空航天大学 | Four-ring small-size folded dipole antenna with Peano fractals |
| CN106450797A (en) * | 2015-08-06 | 2017-02-22 | 启碁科技股份有限公司 | Antenna system |
| CN105514590A (en) * | 2016-02-19 | 2016-04-20 | 广东中元创新科技有限公司 | High-gain dual-annular element antenna |
| CN105514590B (en) * | 2016-02-19 | 2018-08-31 | 广东中元创新科技有限公司 | High-gain Crossed Circle element antenna |
| CN106450706A (en) * | 2016-12-16 | 2017-02-22 | 杨明 | Broadband dual-polarized magnetoelectric dipole base station antenna |
| CN114374088A (en) * | 2022-01-21 | 2022-04-19 | 西安交通大学 | Plane ultra-wideband ground penetrating radar antenna |
| CN114374088B (en) * | 2022-01-21 | 2023-09-22 | 西安交通大学 | Planar ultra-wideband ground penetrating radar antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20081022 Effective date of abandoning: 20080108 |