CN104022357A - Multiband ultra-wideband antenna - Google Patents
Multiband ultra-wideband antenna Download PDFInfo
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- CN104022357A CN104022357A CN201410213763.4A CN201410213763A CN104022357A CN 104022357 A CN104022357 A CN 104022357A CN 201410213763 A CN201410213763 A CN 201410213763A CN 104022357 A CN104022357 A CN 104022357A
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- radiating element
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- wideband antenna
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Abstract
The invention relates to a multiband ultra-wideband antenna and belongs to the field of an antenna technology. The multiband ultra-wideband antenna comprises a radiator, a ground plate and a center-feeding point. The radiator contains a first radiating element (2), a second radiating element (2) and a third radiating element (5) which are respectively corresponding to GPS L1, WLAN and UWB bands of the antenna. By additionally arranging an L-shaped slit (6) in the radiator and a third slit (8) in the ground plate (11), internal impedance characteristic of ultra-wideband frequency domain is improved. The multiband ultra-wideband antenna has a simple structure, has stable performance and is easy to integrate with a mobile terminal. Operating frequency of the multiband ultra-wideband antenna includes GPS L1(1.575GHz), WLAN(2.4GHz) and ultra-wideband UWB(3.1-10.6GHz).
Description
Technical field
The present invention relates to wireless communication technology field, particularly a kind of multiband ultra-wideband antenna.
Background technology
Radio ultra wide band system has is with the advantages such as roomy, transmitting power is low, is applicable to very much the wireless receiving and dispatching of short distance, large data, and the ultra-wideband antenna very important part that is radio ultra wide band system.
Along with the fast development of mobile terminal, the wireless communication system of various standards emerges in large numbers in succession, and the antenna amount in terminal is also more and more, and intercoupling between antenna and between antenna and other devices can affect the performance of antenna greatly.How under the prerequisite that does not increase antenna amount, comprising more multiband is current problem demanding prompt solution.
Summary of the invention
Only be suitable for the technical problem of single frequency band for solving existing antenna, the invention provides a kind of small size, simple in structure, cost is low, is applicable to the ultra-wideband antenna of multiband.
Object of the present invention realizes by following technical scheme:
A kind of multiband ultra-wideband antenna, comprising: the first radiating element, and the second radiating element, the 3rd radiating element and ground plate,
Described the first radiating element is U-shaped metal patch, has groove and the first gap on it;
Described the second radiating element is rectangular metal paster, and between the first radiating element, has the second gap;
Described the 3rd radiating element is irregular metal paster, which is provided with L-type gap;
Described ground plate is the metal patch with the 3rd gap.
Preferably, adjust corresponding resonance frequency and bandwidth by the L-type gap of adjusting in length and the 3rd radiating element of groove, the first gap, the second gap and the second radiating element of the first radiating element.
Preferably, the wherein GPS L1 frequency range of the first radiating element respective antenna, the WLAN frequency range of the second radiating element respective antenna, the UWB frequency range of the 3rd radiating element respective antenna.
Preferably, the length of groove is 26mm, and width is 2.5mm.
Preferably, the width in the first gap is 0.5mm, and length is 2.5mm.
Preferably, the width in the second gap is 1mm, and length is 29mm.
Preferably, described the second radiating element respective frequencies is 2.4GHz, and the width minimizing in the second gap can make the resonance frequency of the second radiating element raise and Bandwidth Reduction; The width in L-type gap increases the bandwidth that can increase UWB frequency range.
Preferably, radiant body and ground plate by 50 Ω coaxial lines from Fpir Crevices gap directly to radiant body feed, described radiant body comprises the first radiating element, the second radiating element and the 3rd radiating element.
Preferably, the width of ground plate is less than the width of radiating element.
Principle of the present invention is: utilize single antenna to realize the technology of multiband, separate multiple radiating elements and by the gap of cracking at ground plate, reach the object that realizes multiband on radiant body.
Compared with prior art, tool has the following advantages and beneficial effect in the present invention:
1, the present invention has the ultra broadband characteristic of good GPS L1 (1.575GHz), WLAN (2.4GHz) and UWB (3.1GHz-10.6GHz) frequency range.Can on single antenna, realize multiple frequency ranges, can overcome better due to the narrow and small drawback that many antennas can not be installed in mobile terminal inner space.
2, simple in structure, lightweight, the requirement that meets planar design; Cost of manufacture low (can scribe with copper film), meets the requirement of miniaturization mobile terminal.
3, antenna of the present invention does not have dielectric-slab, can stick on relative dielectric constant and is on 1 foam or plastics, has very strong flexibility.Adapt to the cooperating of equipping with existing communication, meet the requirement of multi-communication standard.
Brief description of the drawings
Fig. 1 is multiband ultra broadband structural representation;
Fig. 2 is emulation and the test result of voltage standing wave ratio;
Fig. 3 is E plane simulation result;
Fig. 4 is H plane simulation result.
Drawing reference numeral explanation: 1, the first radiating element; 2, the second radiating element; 3, the second gap; 4, the first gap; 5, the 3rd radiating element; 6, L-type gap; 7, rectangular metal sheet; 8, the 3rd gap; 9, groove; 10, Fpir Crevices gap; 11, ground plate; W1, ground unit width; W2, radiating element width.
Embodiment
Below in conjunction with embodiment and accompanying drawing, the present invention is described in further detail, but embodiments of the present invention are not limited to this.
Embodiment
Fig. 1 is the front schematic view of antenna.Multiband ultra-wideband antenna of the present invention has many resonance branch, and this ultra-wideband antenna comprises the first radiating element 1, the second radiating element 2, the 3rd radiating element 5 and is with apertured metal patch ground plate 11.The width W 1 of ground plate 11 is less than the width W 2 of radiating element.The first radiating element 1 is U-shaped metal patch, which is provided with groove 9 and the first gap 4, and groove 9 is for rectangle and having the first gap 4 near the outside of distributing point one end; The second radiating element 2 is rectangular metal paster, is provided with the both arms that 3, the second gaps 3, the second gap are parallel to U-shaped metal patch between the second radiating element 2 and the first radiating element 1; The 3rd radiating element 5 is irregular metal paster.Ground plate 11 is the metal patch with the 3rd gap 8, and the 3rd gap 8 is opened in the one end near distributing point and ground plate is forming rectangular metal sheet 7 near distributing point place narrowed width.
The first radiating element 1 covers GPS L1 frequency range, and its characteristic is resonance, and groove 9 and the first gap 4, the second gap 3 of adjusting U-shaped metal patch change U-shaped metal patch length and width, change resonance frequency, bandwidth and the antenna pattern of ultra-wideband antenna.Groove 9 length and width increase can reduce its resonance frequency, and its length is 26mm in the present invention, and width is 2.5mm, the second gap 3 width increase can reduce its resonance frequency, and in the present invention, its width is 1mm, and length is 29mm, the first gap 4 width are 0.5mm, and length is 2.5mm.
The second radiating element 2 covers WLAN frequency range, and its characteristic is resonance, between rectangular metal paster and the first radiating element 1, has the second gap 3, and the length of rectangular metal paster and the second gap 3 can affect the antenna impedance of resonance frequency and WLAN frequency range.
The 3rd radiating element 5 covers UWB frequency range, on irregular metal paster, there is L-type gap 6, adjust the antenna impedance of UWB frequency range by changing the shape in the 3rd gap 8 on L-type gap 6 and ground plate 11, obtain good voltage standing wave ratio, the length in the 3rd gap 8 on L-type gap 6, ground plate 11 is larger on the impact of antenna impedance, its reason is that the length in gap is larger on the current path impact of antenna surface, has changed antenna impedance.
For ground plate 11, can change the antenna impedance of UWB frequency range by adjusting the parameter in the 3rd gap 8.The width in the 3rd gap 8 is 0.5mm, and length is 5.5mm.The width that is provided with the Fpir Crevices gap 10 between Fpir Crevices gap 10, the three radiating elements 5 and rectangular metal paster 7 between the 3rd radiating element 5 and ground plate 11 is 1mm, and by 50 Ω coaxial lines from Fpir Crevices gap 10 directly to three radiating element feeds.
All in order to make antenna there is GPS, WLAN, UWB frequency range to above operation, make antenna material object and utilize Agilent E5071C vector network analyzer to measure it, Fig. 2 is measurement and the emulated data of antenna, therefrom show that the simulative data and flight-test data of this antenna reaches consistent substantially.The emulated data of antenna pattern as shown in Figure 3 and Figure 4, as can be seen here, adopts technical scheme of the present invention can overcome better due to the narrow and small drawback that many antennas can not be installed in mobile terminal inner space.
Above-described embodiment is preferably execution mode of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present invention and principle, substitutes, combination, simplify; all should be equivalent substitute mode, within being included in protection scope of the present invention.
Claims (9)
1. a multiband ultra-wideband antenna, comprising: the first radiating element (1), and the second radiating element (2), the 3rd radiating element (5) and ground plate (11), is characterized in that:
Described the first radiating element (1) is U-shaped metal patch, has groove (9) and the first gap (4) on it, and described the first gap (4) is opened in the outside of groove (9) near distributing point one end;
Described the second radiating element (2) is rectangular metal paster, and has the second gap (3) between the first radiating element (1), and the second gap (3) are parallel to the both arms of U-shaped metal patch;
Described the 3rd radiating element (5) is irregular metal paster, which is provided with L-type gap (6);
Described ground plate (11) is the metal patch with the 3rd gap (8), and open in the one end near distributing point in the 3rd gap (8).
2. multiband ultra-wideband antenna according to claim 1, is characterized in that: adjust corresponding resonance frequency and bandwidth by the L-type gap (6) of adjusting in length and the 3rd radiating element (5) of groove (9), the first gap (4), the second gap (3) and the second radiating element (2) of the first radiating element (1).
3. multiband ultra-wideband antenna according to claim 1, it is characterized in that: the wherein GPS L1 frequency range of the first radiating element (1) respective antenna, the WLAN frequency range of the second radiating element respective antenna, the UWB frequency range of the 3rd radiating element respective antenna.
4. multiband ultra-wideband antenna according to claim 1, is characterized in that: the length of groove (9) is 26mm, and width is 2.5mm.
5. multiband ultra-wideband antenna according to claim 1, is characterized in that: the width of the first gap (4) is 0.5mm, and length is 2.5mm.
6. multiband ultra-wideband antenna according to claim 1, is characterized in that: the width of the second gap (3) is 1mm, and length is 29mm.
7. multiband ultra-wideband antenna according to claim 1, it is characterized in that: described the second radiating element (2) respective frequencies is 2.4GHz, the width minimizing of the second gap (3) can make the resonance frequency of the second radiating element raise and Bandwidth Reduction; The width in L-type gap (6) increases the bandwidth that can increase UWB frequency range.
8. multiband ultra-wideband antenna according to claim 1, it is characterized in that: radiant body and ground plate (11) by 50 Ω coaxial lines from Fpir Crevices gap (10) directly to radiant body feed, described radiant body comprises the first radiating element (1), the second radiating element (2) and the 3rd radiating element (5).
9. multiband ultra-wideband antenna according to claim 1, is characterized in that: the width (W1) of ground plate (11) is less than the width (W2) of radiating element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410213763.4A CN104022357B (en) | 2014-05-20 | 2014-05-20 | A kind of multiband ultra-wideband antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410213763.4A CN104022357B (en) | 2014-05-20 | 2014-05-20 | A kind of multiband ultra-wideband antenna |
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| Publication Number | Publication Date |
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| CN104022357A true CN104022357A (en) | 2014-09-03 |
| CN104022357B CN104022357B (en) | 2017-03-29 |
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| CN201410213763.4A Expired - Fee Related CN104022357B (en) | 2014-05-20 | 2014-05-20 | A kind of multiband ultra-wideband antenna |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064384A (en) * | 2010-11-05 | 2011-05-18 | 哈尔滨工程大学 | Ultra-wideband antenna |
| CN201904436U (en) * | 2010-09-16 | 2011-07-20 | 黑龙江大学 | Ultra-broadband antenna with trap characteristic |
| CN102280700A (en) * | 2011-05-05 | 2011-12-14 | 电子科技大学 | Printing boardband terminal antenna |
| CN202333130U (en) * | 2011-11-10 | 2012-07-11 | 黑龙江大学 | Annular multi-trap UWB antenna |
| CN102598410A (en) * | 2009-10-30 | 2012-07-18 | 莱尔德技术股份有限公司 | Omnidirectional multi-band antennas |
| CN202930554U (en) * | 2012-12-04 | 2013-05-08 | 哈尔滨飞羽科技有限公司 | Coplanar-waveguide ultra-wideband antenna having trapping characteristic |
| CN103545604A (en) * | 2012-07-11 | 2014-01-29 | 启碁科技股份有限公司 | Electronic device and multi-band antenna thereof |
-
2014
- 2014-05-20 CN CN201410213763.4A patent/CN104022357B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102598410A (en) * | 2009-10-30 | 2012-07-18 | 莱尔德技术股份有限公司 | Omnidirectional multi-band antennas |
| CN201904436U (en) * | 2010-09-16 | 2011-07-20 | 黑龙江大学 | Ultra-broadband antenna with trap characteristic |
| CN102064384A (en) * | 2010-11-05 | 2011-05-18 | 哈尔滨工程大学 | Ultra-wideband antenna |
| CN102280700A (en) * | 2011-05-05 | 2011-12-14 | 电子科技大学 | Printing boardband terminal antenna |
| CN202333130U (en) * | 2011-11-10 | 2012-07-11 | 黑龙江大学 | Annular multi-trap UWB antenna |
| CN103545604A (en) * | 2012-07-11 | 2014-01-29 | 启碁科技股份有限公司 | Electronic device and multi-band antenna thereof |
| CN202930554U (en) * | 2012-12-04 | 2013-05-08 | 哈尔滨飞羽科技有限公司 | Coplanar-waveguide ultra-wideband antenna having trapping characteristic |
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| Publication number | Publication date |
|---|---|
| CN104022357B (en) | 2017-03-29 |
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Granted publication date: 20170329 Termination date: 20200520 |