CN1874059A - Medium base plate of left hand material in use for highly sensitive antenna of handset - Google Patents
Medium base plate of left hand material in use for highly sensitive antenna of handset Download PDFInfo
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- CN1874059A CN1874059A CN 200510042741 CN200510042741A CN1874059A CN 1874059 A CN1874059 A CN 1874059A CN 200510042741 CN200510042741 CN 200510042741 CN 200510042741 A CN200510042741 A CN 200510042741A CN 1874059 A CN1874059 A CN 1874059A
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Abstract
The invention relates to medium base plate of handset antenna, especially, medium base plate in left hand material. The antenna prepared from the medium base plate in left hand material includes medium base plate in left hand material, radiating element, ground plate, and feeding point etc. Superimposing and pressing left hand material including metal open-ended resonant ring and metal wires prepares medium base plate through technique for etching circuit board in multi-layer. Using scale effect for evanescent wave by left hand material magnifies signal in electromagnetic wave and further enhances sensitivity of antenna. Comparing with antenna of traditional handset, the invention improves quality of mobile communication in underground store, tunnel, underground, and inside architectural complex effectively.
Description
Technical field the present invention relates to a kind of medium substrate of antenna for mobile phone, particularly a kind of left-handed materials is used for the medium substrate of antenna for mobile phone, can improve its sensitivity with the antenna for mobile phone of this substrate manufacture, improves its performance.
Background technology is along with hyundai electronics communication science and technology makes rapid progress, requirement for various electronic equipment is more and more higher, particularly mobile communication aspect all uses the electromagnetic wave transmitting signals very convenient in the use, thereby make mobile phone become the communication product of quite popularizing, owing to use the electromagnetic wave transmitting signals, it is very important therefore being used for the Antenna Design of induced electricity magnetic wave.The most microstrip antennas that adopt of existing antenna for mobile phone, microstrip antenna has a kind of simple structure, by this structure, dielectric is formed on the floor, and rectangle or circular radiation patch are attached on the dielectric surface, and this structure has certain shortcoming, be that narrow bandwidth, frequency are low, but advantage is that low cost can make small size, lightweight antenna, is fit to large-scale production, therefore is widely used in the mobile communication antenna.But, because the operational environment more complicated of mobile communication equipment, the semiclosed occasion of sealing, electromagnetic wave signal conductively-closed decay such as often run in market place builet below the ground, tunnel, subway, groups of building, or, cause the transmitting-receiving sensitivity of antenna for mobile phone to reduce through various losses such as diffracted reflections; And antenna for mobile phone self is as a kind of microstrip antenna, the signal of telecommunication can not be converted into fully to extraradial electromagnetic wave signal under in working order, also has energy loss, as the coupled radiation interference of electronic component around the dielectric loss of circuit board, the antenna etc.Traditional antenna design method is to have made various optimizations with the structure of antenna or with the coupling of antenna receiving-sending circuit, but can not finely address the above problem.
The present invention proposes a kind of new approaches of improving antenna for mobile phone from material.The left-handed materials of utilization of the present invention is made up of the metal pattern of periodic arrangement, and dielectric constant and magnetic permeability are simultaneously for negative in a certain electromagnetic response frequency range for it, and the electromagnetic phase velocity of Chuan Boing is opposite with the group velocity direction therein.Because left-handed materials and common right-handed material wave vector direction are just the opposite, therefore will become enhanced field after the collapsing field of right-handed material enters left-handed materials, enter in the left-handed materials with the evanescent wave of exponential series decay and will become the index enhanced field, be equivalent to evanescent wave is amplified.The application of left-handed materials aspect radio communication is to utilize its enlarge-effect to evanescent wave, and the electromagnetic wave signal that energy will be more weak amplifies, and then strengthens the sensitivity of antenna, improves the performance of antenna.This just can solve the conventional mobile phone antenna often because surrounding buildings thing or other object produce shielding and make the normally problem of reception of mobile phone signal, has improved the quality of the mobile communication of occasions such as market place builet below the ground, tunnel, subway, groups of building be interior effectively.
Summary of the invention the purpose of this invention is to provide a kind of medium base plate of left hand material in use for highly sensitive antenna of handset, can solve problems such as existing antenna for mobile phone sensitivity is not high, inefficiency with the antenna for mobile phone of this substrate manufacture.Antenna for mobile phone with this kind substrate manufacture comprises medium base plate of left hand material, ground plate, radiating element, distributing point, and wherein radiating element can be designed to different shape to be suitable for responding to the double frequency electromagnetic wave signal, as the shape of falling F, butterfly, E shape etc.At the one side etching metallic copper paster of a planar medium substrate as radiating element to be suitable for induced electricity magnetic wave signal, this metallic copper paster can receive low frequency (900MHz), high frequency (1800MHz-1900MHz) electromagnetic wave signal, the another side etching of medium substrate size can covered substrate metallic copper as ground plate, distributing point is set on radiating element, antenna adopts coaxial line direct feed, the probe of coaxial socket is connected with paster through medium substrate, the outer conductor of coaxial socket connects ground plate, and wherein medium substrate is to be formed by the superimposed pressurization of left-handed materials of adopting the multilayer circuit board lithographic technique to make.Left-handed materials is made up of the metallic pattern of periodic arrangement, and its construction unit is made up of metal wire and metal openings resonant ring, and wherein the metal openings resonant ring can be monocycle or concentric double ring, and its shape can be hexagon, circle, square.A kind of construction unit of being made up of hexagonal apertures resonance dicyclo and metal wire wherein as shown in Figure 1.The frequency band that makes left-handed materials the left hand characteristic zone occur by the geometric parameter of regulating left-handed materials can cover the operating frequency section of antenna for mobile phone, when antenna for mobile phone is operated in the left hand characteristic zone, all can amplify the sensitivity enhancing that makes antenna, thereby improve the performance of antenna electromagnetic wave signal.
Description of drawings
Fig. 1 forms the metal openings resonant ring of left-handed materials and the construction unit schematic diagram of metal wire
The highly sensitive antenna of handset schematic diagram of Fig. 2 embodiment one and an internal layer medium base plate of left hand material schematic diagram wherein thereof
The highly sensitive antenna of handset schematic diagram of Fig. 3 embodiment two and an internal layer medium base plate of left hand material schematic diagram wherein thereof
The highly sensitive antenna of handset schematic diagram of Fig. 4 embodiment three and an internal layer medium base plate of left hand material schematic diagram wherein thereof
Embodiment the present invention adopts the multilayer circuit board lithographic technique to make medium base plate of left hand material, substrate thickness is 1.1～1.4mm, the internal layer number of plies is 5～7 layers, to be etched in the substrate internal layer by the left-handed materials that metal openings resonant ring and metal wire are formed, because the operating frequency of antenna for mobile phone at 900MHz, 1800MHz-1900MHz, needs the left-handed materials of two kinds of different geometrical size of design to make its left hand characteristic frequency band cover two frequency bands of above antenna for mobile phone respectively:
(1) design left hand characteristic bandwidth is 600MHz, and centre frequency is in the left-handed materials of 900MHz, if it forms construction unit metal openings resonant ring circle, hexagon, square concentric double ring structure, its physical dimension is: the inscribed circle diameter of interior ring is d
1=9.5-10.5mm, the inscribed circle diameter of outer shroud are d
2=21.5-22.5mm, opening are g=2-3mm, and live width is c
1=3.5-4.5mm, spacing is t=1.5-2.5mm; If circle, hexagon, square single ring architecture, its physical dimension is: the inscribed circle diameter of ring is d
2=21.5-22.5mm, opening are g=2-3mm, and live width is c
1=3.5-4.5mm, spacing is t=1.5-2.5mm.The construction unit metal wire physical dimension of forming left-handed materials is: length is L=60-66mm, and live width is c
2=4.5-5.5mm.The thickness of metal openings resonant ring and metal wire is u=0.03-0.04mm.
(2) design left hand characteristic bandwidth is 600MHz, and centre frequency is in the left-handed materials of 1800MHz, if it forms construction unit metal openings resonant ring circle, hexagon, square concentric double ring structure, physical dimension is: the inscribed circle diameter of interior ring is d
1=4.5-5.5mm, the inscribed circle diameter of outer shroud are d
2=10.5-11.5mm, opening are g=1.2-1.3mm, and live width is c
1=1.5-2.5mm, spacing is t=1.5-2.5mm; If circle, hexagon, square single ring architecture, physical dimension is: the inscribed circle diameter of ring is d
2=10.5-11.5mm, opening are g=1.2-1.3mm, and live width is c
1=1.5-2.5mm.The construction unit metal wire physical dimension of forming left-handed materials is: length is L=60-66mm, and live width is c
2=4.5-5.5mm, the thickness of metal openings resonant ring and metal wire is u=0.03-0.04mm.
The metal openings resonant ring unit of the left-handed materials of design and the tow sides that the metal wire unit is etched in the internal layer medium substrate respectively, four metal openings resonant rings of substrate front side etching, wherein two geometric parameter is bigger, size is as described in top (1), two other geometric parameter is less, size is as described in top (2), the outer ring opening of these four metal openings resonant rings all in the same direction, at two centre distances of substrate another side etching metal wire that is 20-21mm, a metal line wherein is corresponding to the axis of the bigger split ring resonator of two physical dimensions, and another is corresponding to the axis of the less split ring resonator of two physical dimensions.Add one deck blank medium substrate between every two-layer internal layer medium substrate that is etched with left-handed materials, internal substrate that etching is good and blank medium superimposed substrate add and are pressed into the monoblock medium base plate of left hand material.Leftward the outer upper surface etching metallic copper paster of material medium substrate as radiating element to be suitable for responding to the double frequency electromagnetic wave signal, the metallic copper of outer lower surface etching size energy covered substrate is as ground plate, one distributing point is set on radiating element, antenna adopts coaxial line direct feed, the probe of coaxial socket is connected with paster through medium substrate, the outer conductor of coaxial socket connects ground plate, finally makes the antenna for mobile phone finished product.Medium base plate of left hand material will amplify the electromagnetic wave signal that antenna receives in the antenna for mobile phone operating frequency, improves the sensitivity and the operating efficiency of antenna, improves mobile phone antenna performance.
Implementation procedure of the present invention is by embodiment and description of drawings:
Embodiment one:
Adopt the multilayer circuit board lithographic technique to make medium base plate of left hand material, the internal layer number of plies is 5 layers, and its concrete preparation process is as described in the enforcement mode, and the used left-handed materials construction unit of present embodiment is metallic copper hexagonal apertures resonance dicyclo and copper lines.At a layer thickness is the split ring resonator 11 that two centre frequencies of PTFE medium substrate (ε=2.6) one side etching of 0.25mm are 900MHz, and its parameter is: the inscribed circle diameter of interior ring is d
1=10mm, the inscribed circle diameter of outer shroud are d
2=22mm, opening are g=2.5mm, and live width is c
1=4mm, spacing t=2mm; Split ring resonator 12 parameters that two centre frequencies of etching are 1800MHz are: the inscribed circle diameter of interior ring is d
1=5mm, the inscribed circle diameter of outer shroud are d
2=11mm, opening are g=1.25mm, and live width is c
1=2mm, spacing t=2mm.In two metal line 13 of substrate another side etching, its parameter is: length is L=65mm, and live width is c
2=5mm, spacing is 20.5mm.The thickness of metal openings resonant ring and metal wire is u=0.04mm.At the one side etching shape of the falling F metallic copper paster 2 of this left-handed materials ptfe substrate 1 as radiating element, the metallic copper of another side etching size energy covered substrate is as ground plate 3, one distributing point 4 is set on radiating element, this distributing point next door is provided with three short circuit metal pins 5, this pin can be divided into the radiating element paster L shaped paster 21 of two parts and rectangular patch 22, L shaped paster is in order to induction reception low-frequency electromagnetic wave signal, rectangular patch has so just been made highly sensitive antenna of handset as shown in Figure 2 on the material medium substrate leftward in order to the induction of high frequency electromagnetic wave signal.
Embodiment two:
Adopt the multilayer circuit board lithographic technique to make medium base plate of left hand material, the internal layer number of plies is 5 layers, and its concrete preparation process is as described in the enforcement mode, and the construction unit of the left-handed materials that present embodiment is used is metallic copper square aperture resonance monocycle and copper lines.At a layer thickness is the split ring resonator 11 that two centre frequencies of PTFE medium substrate (ε=2.6) one side etching of 0.2mm are 900MHz, and its parameter is: the inscribed circle diameter of ring is d
2=22.2mm, opening are g=2.4mm, and live width is c
1=4.2mm, spacing t=2.2mm; The parameter of the split ring resonator 12 that two centre frequencies are 1800MHz is: the inscribed circle diameter of ring is d
2=11.3mm, opening are g=1.23mm, and live width is c
1=2.3mm, spacing t=2.2mm.In two metal line 13 of substrate another side etching, its parameter is: length is L=62mm, and live width is c
2=5.2mm, spacing is 21mm.The thickness of metal openings resonant ring and metal wire is u=0.035mm.At the one side etching butterfly metallic copper paster 2 of this left-handed materials ptfe substrate 1 as radiating element, the metallic copper of another side etching size energy covered substrate is as ground plate 3, one distributing point 4 is set on radiating element, has so just made highly sensitive antenna of handset as shown in Figure 3 on the material medium substrate leftward.
Embodiment three:
Adopt the multilayer circuit board lithographic technique to make medium base plate of left hand material, the internal layer number of plies is 7 layers, and its concrete preparation process is as described in the enforcement mode, and the construction unit of the left-handed materials that present embodiment is used is metallic copper circular open resonance monocycle and copper lines.At thickness is the split ring resonator 11 that two centre frequencies of PTFE medium substrate (ε=2.6) one side etching of 0.15mm are 900MHz, and its parameter is: the inscribed circle diameter of ring is d
2=21.7mm, opening are g=2.7mm, and live width is c
1=4.3mm, spacing t=1.8mm; The parameter of the split ring resonator 12 that two centre frequencies are 1800MHz is: the inscribed circle diameter of ring is d
2=11.3mm, opening are g=1.29mm, and live width is c
1=2.1mm, spacing t=1.8mm.In two metal line 13 of substrate another side etching, its parameter is: length is L=65mm, and live width is c
2=4.8mm, spacing is 20.7mm.The thickness of metal openings resonant ring and metal wire is u=0.035mm.At the one side etching butterfly metallic copper paster 2 of this left-handed materials ptfe substrate 1 as radiating element, the metallic copper of another side etching size energy covered substrate is as ground plate 3, one distributing point 4 is set on radiating element, and the schematic diagram of this antenna as shown in Figure 4.
The above only is the preferred embodiments of the present invention, and the simple equivalent of being done according to claim of the present invention and description of the invention content changes and modifies generally, all should belong to the scope that patent of the present invention covers.
Claims (4)
1. medium base plate of left hand material in use for highly sensitive antenna of handset, the highly sensitive antenna of handset of making of this medium base plate of left hand material comprises medium base plate of left hand material, ground plate, radiating element, distributing point, and its principal character is that the medium substrate of antenna is formed by the superimposed pressurization of being made up of metal openings resonant ring and metal wire of left-handed materials of adopting the multilayer circuit board lithographic technique to make.
2. medium base plate of left hand material in use for highly sensitive antenna of handset as claimed in claim 1, it is characterized in that: adopt the multilayer circuit board lithographic technique to make medium base plate of left hand material, substrate thickness 1.1～1.4mm, the internal layer number of plies is 5～7 layers, the metal openings resonant ring unit of left-handed materials and metal wire unit are etched in the tow sides of internal layer medium substrate respectively, add one deck blank medium substrate between every two-layer internal layer medium substrate that is etched with left-handed materials, add and be pressed into the monoblock medium base plate of left hand material being etched with the substrate of left-handed materials and blank medium superimposed substrate.
3. medium base plate of left hand material in use for highly sensitive antenna of handset as claimed in claim 1 is characterized in that adopting left hand characteristic regional center frequency respectively in two kinds of left-handed materials of 900MHz and 1800MHz, and its geometric parameter is:
(1.) centre frequency is in the left-handed materials of 900MHz, if it forms construction unit metal openings resonant ring circle, hexagon or square concentric double ring structure, physical dimension is: the inscribed circle diameter of interior ring is d
1=9.5-10.5mm, the inscribed circle diameter of outer shroud are d
2=21.5-22.5mm, opening are g=2-3mm, and live width is c
1=3.5-4.5mm, spacing is t=1.5-2.5mm; If circle, hexagon or square single ring architecture, its physical dimension is: the inscribed circle diameter of ring is d
2=21.5-22.5mm, opening are g=2-3mm, and live width is c
1=3.5-4.5mm, spacing is t=1.5-2.5mm; The construction unit metal wire physical dimension of forming left-handed materials is: length is L=60-66mm, and live width is c
2=4.5-5.5mm, the thickness of split ring resonator and metal wire is u=0.03-0.04mm;
(2.) centre frequency is in the left-handed materials of 1800MHz, if it forms construction unit metal openings resonant ring circle, hexagon or square concentric double ring structure, physical dimension is: the inscribed circle diameter of interior ring is d
1=4.5-5.5mm, the inscribed circle diameter of outer shroud are d
2=10.5-11.5mm, opening are g=1.2-1.3mm, and live width is c
1=1.5-2.5mm, spacing is t=1.5-2.5mm; If circle, hexagon or square single ring architecture, physical dimension is: the inscribed circle diameter of ring is d
2=10.5-11.5mm, opening are g=1.2-1.3mm, and live width is c
1=1.5-2.5mm; The construction unit metal wire physical dimension of forming left-handed materials is: length is L=60-66mm, and live width is c
2=4.5-5.5mm, the thickness of split ring resonator and metal wire is u=0.03-0.04mm.
4. medium base plate of left hand material in use for highly sensitive antenna of handset as claimed in claim 1, it is characterized in that: be etched on the internal substrate four metal openings resonant ring outer ring openings all in the same direction, and the axis of per two resonant rings is corresponding to a metal line of substrate another side, and the centre distance of two metal line is 20-21mm.
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| CNB2005100427417A CN100454659C (en) | 2005-05-31 | 2005-05-31 | Medium base plate of left hand material in use for highly sensitive antenna of handset |
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| CNB2005100427417A CN100454659C (en) | 2005-05-31 | 2005-05-31 | Medium base plate of left hand material in use for highly sensitive antenna of handset |
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| CN1874059A true CN1874059A (en) | 2006-12-06 |
| CN100454659C CN100454659C (en) | 2009-01-21 |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101976761A (en) * | 2010-09-07 | 2011-02-16 | 江苏大学 | Left-handed material (LHM) patch antenna |
| CN101388489B (en) * | 2008-10-29 | 2012-07-04 | 华为终端有限公司 | Mobile phone antenna and mobile phone |
| CN101662055B (en) * | 2009-09-28 | 2012-09-05 | 浙江大学 | Broadband metamaterial and preparation method thereof |
| WO2012167683A1 (en) * | 2011-06-08 | 2012-12-13 | 中兴通讯股份有限公司 | Antenna and data card |
| CN102955998A (en) * | 2011-08-25 | 2013-03-06 | 深圳光启高等理工研究院 | Mobile communication system, card reader, mobile terminal and communication method |
| CN107147221A (en) * | 2017-07-05 | 2017-09-08 | 广东电网有限责任公司电力科学研究院 | The spiral LHM in hexagon concave surface and transmission line of electricity energy transmission system |
| CN109713443A (en) * | 2019-01-07 | 2019-05-03 | 云南大学 | The SIW aerial array of loading classes butterfly left-handed material unit |
| CN114597639A (en) * | 2022-02-09 | 2022-06-07 | 广东盛路通信科技股份有限公司 | Broadband low-frequency filter oscillator and multi-frequency base station antenna |
| CN114905831A (en) * | 2022-05-24 | 2022-08-16 | 杭州电子科技大学 | Transparent film for enhancing wireless signals and application thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US6791432B2 (en) * | 2000-03-17 | 2004-09-14 | The Regents Of The University Of California | Left handed composite media |
| CN2517125Y (en) * | 2002-01-21 | 2002-10-16 | 东南大学 | Built-in aerial for double-frequency mobile phone |
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2005
- 2005-05-31 CN CNB2005100427417A patent/CN100454659C/en not_active Expired - Fee Related
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101388489B (en) * | 2008-10-29 | 2012-07-04 | 华为终端有限公司 | Mobile phone antenna and mobile phone |
| CN101662055B (en) * | 2009-09-28 | 2012-09-05 | 浙江大学 | Broadband metamaterial and preparation method thereof |
| CN101976761A (en) * | 2010-09-07 | 2011-02-16 | 江苏大学 | Left-handed material (LHM) patch antenna |
| CN101976761B (en) * | 2010-09-07 | 2013-04-17 | 江苏大学 | Left-handed material (LHM) patch antenna |
| WO2012167683A1 (en) * | 2011-06-08 | 2012-12-13 | 中兴通讯股份有限公司 | Antenna and data card |
| CN102955998A (en) * | 2011-08-25 | 2013-03-06 | 深圳光启高等理工研究院 | Mobile communication system, card reader, mobile terminal and communication method |
| CN107147221A (en) * | 2017-07-05 | 2017-09-08 | 广东电网有限责任公司电力科学研究院 | The spiral LHM in hexagon concave surface and transmission line of electricity energy transmission system |
| CN107147221B (en) * | 2017-07-05 | 2023-04-25 | 广东电网有限责任公司电力科学研究院 | Hexagonal concave spiral left-handed material and power transmission line energy transmission system |
| CN109713443A (en) * | 2019-01-07 | 2019-05-03 | 云南大学 | The SIW aerial array of loading classes butterfly left-handed material unit |
| CN109713443B (en) * | 2019-01-07 | 2024-02-02 | 云南大学 | SIW antenna array loaded with butterfly-like left-handed material units |
| CN114597639A (en) * | 2022-02-09 | 2022-06-07 | 广东盛路通信科技股份有限公司 | Broadband low-frequency filter oscillator and multi-frequency base station antenna |
| CN114597639B (en) * | 2022-02-09 | 2023-11-28 | 广东盛路通信科技股份有限公司 | Broadband low-frequency filter oscillator and multi-frequency base station antenna |
| CN114905831A (en) * | 2022-05-24 | 2022-08-16 | 杭州电子科技大学 | Transparent film for enhancing wireless signals and application thereof |
| CN114905831B (en) * | 2022-05-24 | 2024-02-09 | 杭州电子科技大学 | Transparent film for enhancing wireless signals and application thereof |
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