CN102075221A - Handheld terminal diversity antenna equivalent-designing method and system - Google Patents
Handheld terminal diversity antenna equivalent-designing method and system Download PDFInfo
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- CN102075221A CN102075221A CN2011100067629A CN201110006762A CN102075221A CN 102075221 A CN102075221 A CN 102075221A CN 2011100067629 A CN2011100067629 A CN 2011100067629A CN 201110006762 A CN201110006762 A CN 201110006762A CN 102075221 A CN102075221 A CN 102075221A
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Abstract
The invention discloses a handheld terminal diversity antenna equivalent-designing method and a handheld terminal diversity antenna equivalent-designing system. The method comprises the following steps of: in the structural designing of a terminal, determining the positions and three-dimensional sizes of antennae; calculating the near-field equivalent radius dimensions of each antenna according to an antenna near-field equivalent radius formula; comparing the near-field equivalent radius dimensions of each antenna with spaces between every two antennae; and determining the smallest space under the condition of no overlapping among the near-field equivalent radius areas of each antenna. In the method and the system, the spaces between every two antennae are minimized by adopting the technical means of avoiding overlapping in the near-field equivalent radius areas of each antenna, thereby realizing rapid, accurate and credible judgment on the double-antenna or multi-antenna designing combination of the terminal and accelerating the development of the terminal.
Description
Technical field
The diversity that the present invention relates to adopt diversity antenna to realize data is received and dispatched the field, and in particular, what improvement related to is a kind of handheld terminal diversity antenna equivalence method for designing and system thereof.
Background technology
Along with the lasting evolution of all kinds of 3G standards, each standard transfer of data peak rate continues to promote.Wherein adopt diversity antenna to realize that the diversity transmitting-receiving of data is methods that all kinds of back 3G and 4G technology generally adopt.Briefly, back 3G and 4G technology have adopted double antenna or have organized the multi-channel high-speed transmitting-receiving that combination of antennas has realized data more.
With LTE (Long Term Evolution) Long Term Evolution is example, the MIMO that adopts in the LTE technology (Multi-Input Multi-Output) MIMO technique, its core is by descending 2 * 2 or 4 * 2 MIMO modes, mutually independently data send realization from different antennae respectively.Under the channel condition of fully scattering, receiving terminal can separate these independent data stream, thereby obtains the linear amplification of data transmission capacity.Briefly, the combination that will adopt double antenna or organize antenna more of LTE terminal realizes the high speed transmitting-receiving of data.
Yet these antenna can not random layout be placed in terminal equipment, because antenna has the characteristic in near-field region and far-field region.Induction field is very big in that the near-field region radiation field of aerial is very little, just is being based on this point and is claiming that just the near-field region is called induction field.And the character in far-field region is different fully with the near-field region, and the direction of propagation between far-field region electric field, magnetic field and ripple three is mutually orthogonal, and is the right-handed helix relation, and the far-field region shows as radiation field.When two groups of antennas or organize antenna mutually when overlapping mutually to the near-field region more, overlapping because of induction field, these antenna directly produces coupling each other, makes each antenna lose independence, thereby can not realize double antenna or organize the independent data transmitting-receiving transmission of antenna more.
At present, when carrying out the terminal double antenna or organize the combination of antennas design, often all be the spacing of each antenna of maximization, by designing model machine and carrying out actual test and verify more.But, do tending to make global design assurance inaccurate like this; Such as, the model machine of design has passed through actual test, and in fact can also make each antenna distance do more near some, and terminal just can design smaller and more exquisitely like this; And for example, if model machine can not be by actual test, Antenna Design must be done again from the beginning, thereby causes the delay of terminal development progress.
Therefore, prior art still haves much room for improvement and develops.
Summary of the invention
The objective of the invention is to, a kind of handheld terminal diversity antenna equivalence method for designing and system thereof are provided, can minimize the spacing of each antenna, accelerate the progress of terminal development.
Technical scheme of the present invention is as follows: a kind of handheld terminal diversity antenna equivalence method for designing wherein, may further comprise the steps:
When carrying out the terminal structure design, determine the position at antenna place and the three dimensions size of antenna;
According to antenna near-field equivalent redius formula, calculate the near field equivalent redius size of each antenna;
Near field equivalent redius size and each antenna spacing each other of antenna are compared;
Determine the minimum spacing under each no juxtaposition situation in antenna near-field equivalent redius zone.
Described handheld terminal diversity antenna equivalence method for designing, wherein: when calculating the near field equivalent redius size of each antenna, antenna near-field equivalent redius formula adopts antenna near-field equivalent redius empirical equation:
R＝2×L×L/λ；
Wherein, R represents the near field radius, and L represents the maximum effective dimensions of antenna, and λ represents operation wavelength.
Described handheld terminal diversity antenna equivalence method for designing, wherein: when determining each antenna minimum spacing,, then widen aerial position that produces juxtaposition and/or the three dimensions size of adjusting this antenna if antenna near-field equivalent redius zone produces juxtaposition.
Described handheld terminal diversity antenna equivalence method for designing, wherein: when determining each antenna minimum spacing, each antenna spacing each other comprises the redundant distance of safety of setting.
Described handheld terminal diversity antenna equivalence method for designing, wherein: when determining each antenna minimum spacing, if the no juxtaposition in antenna near-field equivalent redius zone, but the redundant distance of safety that each antenna spacing each other surpass to be set is then dwindled the associated antenna position and/or is adjusted the three dimensions size of this antenna.
A kind of handheld terminal diversity antenna equivalence design system wherein, comprises with lower module:
The Antenna Design module is used for determining the position at antenna place and the three dimensions size of antenna when carrying out the terminal structure design;
Antenna near-field equivalent redius computing module is used for according to antenna near-field equivalent redius formula, calculates the near field equivalent redius size of each antenna;
The antenna distance comparison module is used near field equivalent redius size and each antenna spacing each other of antenna are compared;
The antenna distance determination module is used for the minimum spacing under definite each no juxtaposition situation in antenna near-field equivalent redius zone.
Described handheld terminal diversity antenna equivalence design system, wherein: antenna near-field equivalent redius computing module adopts following antenna near-field equivalent redius empirical equation to calculate:
R＝2×L×L/λ；
Wherein, R represents the near field radius, and L represents the maximum effective dimensions of antenna, and λ represents operation wavelength.
Described handheld terminal diversity antenna equivalence design system, wherein: the antenna distance determination module also comprises and widens the antenna distance submodule, be used for producing under the situation of juxtaposition, widen aerial position that produces juxtaposition and/or the three dimensions size of adjusting this antenna in antenna near-field equivalent redius zone.
Described handheld terminal diversity antenna equivalence design system, wherein: the antenna distance determination module comprises that also safety is redundant apart from submodule, is used for increasing the redundant distance of setting of safety in each antenna spacing each other.
Described handheld terminal diversity antenna equivalence design system, wherein: the antenna distance determination module also comprises and dwindles the antenna distance submodule, be used at the no juxtaposition in antenna near-field equivalent redius zone, but under the situation of the redundant distance of safety that each antenna spacing each other surpass to be set, dwindle the associated antenna position and/or adjust the three dimensions size of this antenna.
A kind of handheld terminal diversity antenna equivalence method for designing provided by the present invention and system thereof, owing to adopted the technological means of no juxtaposition in each antenna near-field equivalent redius zone, realized minimizing the spacing of each antenna, thereby realized terminal double antenna or the combination of many Antenna Design are made rapid and precise credible the judge, accelerated the progress of terminal development.
Description of drawings
Fig. 1 is the schematic diagram of handheld terminal diversity antenna equivalence design specific embodiment of the present invention.
Embodiment
Below will be described in detail the specific embodiment of the present invention and embodiment, described specific embodiment in order to explain the present invention, is not to be used to limit the specific embodiment of the present invention only.
A kind of handheld terminal diversity antenna equivalence method for designing of the present invention, one of its embodiment, may further comprise the steps: when carrying out the terminal structure design, elder generation's general design goes out the three dimensions size of antenna position and antenna, promptly determines the position at antenna place and the three dimensions size of antenna; Then, according to antenna near-field equivalent redius formula, calculate the near field equivalent redius of each antenna; Then, after again each antenna near-field equivalent redius being calculated, compare with each antenna spacing each other, as long as each antenna equivalent redius zone does not overlap, just can guarantee the independence between each antenna, determine the minimum spacing of each antenna, realize the diversity design of antenna.
Based on above-mentioned handheld terminal diversity antenna equivalence method for designing, the invention allows for a kind of handheld terminal diversity antenna equivalence design system, one of its embodiment, comprise with lower module: the Antenna Design module, be used for when carrying out the terminal structure design, determining the position at antenna place and the three dimensions size of antenna; Antenna near-field equivalent redius computing module is used for according to antenna near-field equivalent redius formula, calculates the near field equivalent redius size of each antenna; The antenna distance comparison module is used near field equivalent redius size and each antenna spacing each other of antenna are compared; The antenna distance determination module is used for the minimum spacing under definite each no juxtaposition situation in antenna near-field equivalent redius zone.
Compare with handheld terminal diversity antenna equivalence method for designing of the prior art and system thereof, in handheld terminal diversity antenna equivalence method for designing provided by the present invention and system thereof, owing to adopted the technological means of no juxtaposition in each antenna near-field equivalent redius zone, realized minimizing the spacing of each antenna, thereby realized terminal double antenna or the combination of many Antenna Design are made rapid and precise credible the judge, accelerated the progress of terminal development.
In the preferred implementation of handheld terminal diversity antenna equivalence method for designing of the present invention and system thereof, antenna near-field equivalent redius computing module comprises antenna near-field equivalent redius empirical equation, is used to calculate the near field equivalent redius size of each antenna; Antenna near-field equivalent redius empirical equation:
R＝2×L×L/λ；
Wherein, R represents the near field radius, and L represents the maximum effective dimensions of antenna, and λ represents operation wavelength.
Further, the antenna distance determination module also comprises and widens the antenna distance submodule, when determining each antenna minimum spacing, be used for producing under the situation of juxtaposition in antenna near-field equivalent redius zone, widen aerial position that produces juxtaposition and/or the three dimensions size of adjusting this antenna.
Be preferably, the antenna distance determination module comprises that also safety is redundant apart from submodule, when determining each antenna minimum spacing, is used for increasing the redundant distance of setting of safety in each antenna spacing each other.
Further, the spacing determination module also comprises and dwindles the antenna distance submodule, when determining each antenna minimum spacing, be used at the no juxtaposition in antenna near-field equivalent redius zone, but under the situation of the redundant distance of safety that each antenna spacing each other surpass to be set, dwindle the associated antenna position and/or adjust the three dimensions size of this antenna.
Adopt the double antenna framework to realize that separately independently system communication is example with bimodulus or multimode terminal; as shown in Figure 1; the pcb board 100 of terminal is provided with two independently antennas: first antenna 101 and second antenna 102; suppose that first antenna 101 is a secondary TD-SCDMA antenna; the maximum direction size L of first antenna 101 is 60mm; because TD-SCDMA is operated in the 2000MHz working frequency range; the pairing electromagnetic wavelength λ of this working frequency range is 150mm; this first antenna, 101 pairing antenna near-field district sizes thus: R(900)=2 * 60 * 60/150=48mm, then the far-field region of first antenna 101 is for being that center radius R is outside the sphere of 48mm with first antenna feed point.
Suppose that second antenna 102 is that another subtask is at the TD-SCDMA of 2000MHz working frequency range antenna, the maximum direction size L` of second antenna 102 also is 60mm, and then the far-field region of second antenna 102 is for being that center radius R` is outside the sphere of 48mm with second antenna feed point.
Therefore when carrying out the layout of first antenna 101 and second antenna 102, need only guarantee that the near-field region of first antenna 101 and the border, near-field region of second antenna 102 do not overlap, guarantee that promptly distance between the first antenna 101 feedback point and second antenna feed point is greater than more than the 48+48=96mm, can guarantee the independence of 102 on first antenna 101 and second antenna, realize the diversity design of antenna.
Should be understood that; the above only is preferred embodiment of the present invention; be not sufficient to limit technical scheme of the present invention; for those of ordinary skills; within the spirit and principles in the present invention; can be increased and decreased according to the above description, replacement, conversion or improvement, and all these increases and decreases, replacement, conversion or improve after technical scheme, all should belong to the protection range of claims of the present invention.
Claims (10)
1. a handheld terminal diversity antenna equivalence method for designing is characterized in that, may further comprise the steps:
When carrying out the terminal structure design, determine the position at antenna place and the three dimensions size of antenna;
According to antenna near-field equivalent redius formula, calculate the near field equivalent redius size of each antenna;
Near field equivalent redius size and each antenna spacing each other of antenna are compared;
Determine the minimum spacing under each no juxtaposition situation in antenna near-field equivalent redius zone.
2. handheld terminal diversity antenna according to claim 1 equivalence method for designing is characterized in that: when calculating the near field equivalent redius size of each antenna, antenna near-field equivalent redius formula adopts antenna near-field equivalent redius empirical equation:
R＝2×L×L/λ；
Wherein, R represents the near field radius, and L represents the maximum effective dimensions of antenna, and λ represents operation wavelength.
3. handheld terminal diversity antenna equivalence method for designing according to claim 1, it is characterized in that: when determining each antenna minimum spacing, if antenna near-field equivalent redius zone produces juxtaposition, then widen aerial position that produces juxtaposition and/or the three dimensions size of adjusting this antenna.
4. handheld terminal diversity antenna equivalence method for designing according to claim 1, it is characterized in that: when determining each antenna minimum spacing, each antenna spacing each other comprises the redundant distance of safety of setting.
5. handheld terminal diversity antenna equivalence method for designing according to claim 4, it is characterized in that: when determining each antenna minimum spacing, if the no juxtaposition in antenna near-field equivalent redius zone, but the redundant distance of safety that each antenna spacing each other surpass to be set is then dwindled the associated antenna position and/or is adjusted the three dimensions size of this antenna.
6. a handheld terminal diversity antenna equivalence design system is characterized in that, comprises with lower module:
The Antenna Design module is used for determining the position at antenna place and the three dimensions size of antenna when carrying out the terminal structure design;
Antenna near-field equivalent redius computing module is used for according to antenna near-field equivalent redius formula, calculates the near field equivalent redius size of each antenna;
The antenna distance comparison module is used near field equivalent redius size and each antenna spacing each other of antenna are compared;
The antenna distance determination module is used for the minimum spacing under definite each no juxtaposition situation in antenna near-field equivalent redius zone.
7. handheld terminal diversity antenna equivalence design system according to claim 6, it is characterized in that: antenna near-field equivalent redius computing module adopts following antenna near-field equivalent redius empirical equation to calculate:
R＝2×L×L/λ；
Wherein, R represents the near field radius, and L represents the maximum effective dimensions of antenna, and λ represents operation wavelength.
8. handheld terminal diversity antenna equivalence design system according to claim 6, it is characterized in that: the antenna distance determination module also comprises and widens the antenna distance submodule, be used for producing under the situation of juxtaposition, widen aerial position that produces juxtaposition and/or the three dimensions size of adjusting this antenna in antenna near-field equivalent redius zone.
9. handheld terminal diversity antenna equivalence design system according to claim 6 is characterized in that: the antenna distance determination module comprises that also safety is redundant apart from submodule, is used for increasing the redundant distance of setting of safety in each antenna spacing each other.
10. handheld terminal diversity antenna equivalence design system according to claim 9, it is characterized in that: the antenna distance determination module also comprises and dwindles the antenna distance submodule, be used at the no juxtaposition in antenna near-field equivalent redius zone, but under the situation of the redundant distance of safety that each antenna spacing each other surpass to be set, dwindle the associated antenna position and/or adjust the three dimensions size of this antenna.
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| CN2011100067629A CN102075221A (en) | 2011-01-13 | 2011-01-13 | Handheld terminal diversity antenna equivalent-designing method and system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100067629A CN102075221A (en) | 2011-01-13 | 2011-01-13 | Handheld terminal diversity antenna equivalent-designing method and system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9954583B2 (en) | 2014-03-28 | 2018-04-24 | Byd Company Limited | Mobile terminal and near field communication antenna |
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| CN1455991A (en) * | 2001-01-30 | 2003-11-12 | 皇家菲利浦电子有限公司 | Radio communication system |
| CN1536713A (en) * | 2003-04-07 | 2004-10-13 | 世代通信（深圳）有限公司 | Intelligent autenna device |
| US7429961B2 (en) * | 2006-01-06 | 2008-09-30 | Gm Global Technology Operations, Inc. | Method for fabricating antenna structures having adjustable radiation characteristics |
| CN201549598U (en) * | 2009-10-15 | 2010-08-11 | 寰波科技股份有限公司 | Double-frequency monopole antenna device with multiply inputs and outputs |
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2011
- 2011-01-13 CN CN2011100067629A patent/CN102075221A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1455991A (en) * | 2001-01-30 | 2003-11-12 | 皇家菲利浦电子有限公司 | Radio communication system |
| CN1536713A (en) * | 2003-04-07 | 2004-10-13 | 世代通信（深圳）有限公司 | Intelligent autenna device |
| US7429961B2 (en) * | 2006-01-06 | 2008-09-30 | Gm Global Technology Operations, Inc. | Method for fabricating antenna structures having adjustable radiation characteristics |
| CN201549598U (en) * | 2009-10-15 | 2010-08-11 | 寰波科技股份有限公司 | Double-frequency monopole antenna device with multiply inputs and outputs |
Non-Patent Citations (2)
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| （美）克劳斯（KRAUS.J.D.）等著: "《天线（第三版）》", 31 August 2006, 电子工业出版社 * |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9954583B2 (en) | 2014-03-28 | 2018-04-24 | Byd Company Limited | Mobile terminal and near field communication antenna |
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Application publication date: 20110525 |