CN1423366A - Two-frequency glass-fiber chip antenna - Google Patents
Two-frequency glass-fiber chip antenna Download PDFInfo
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- CN1423366A CN1423366A CN 01140217 CN01140217A CN1423366A CN 1423366 A CN1423366 A CN 1423366A CN 01140217 CN01140217 CN 01140217 CN 01140217 A CN01140217 A CN 01140217A CN 1423366 A CN1423366 A CN 1423366A
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- glass
- fiber chip
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- chip antenna
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Abstract
A two frequency glass fiber chip antenna comprises glass fiber chips made of glass fiber materials, sinuous radiated wire and joints adhered on the surface, in which the wire is formed on at least two surfaces of the glass fiber chip and the joint connects the sinuous radiated wire to the signal transmission line. This invention covers the bandwidth necessary for two ISM (industrial-scientific-medical band) such as 2450MH2 and 2500MH2.
Description
Technical field
The present invention is relevant for a kind of double frequency (dual-band) glass (FR4) antenna component (chipantenna), particularly is formed at dual-band chip antenna on the glass material chip relevant for a kind of (meandering) radiation metal wires of will wriggling.
Background technology
Also like the mushrooms after rain the appearance of flourish along with communication science and technology, various communication product and technology.The technology that adds integrated circuit is increasingly mature, makes the volume of product also tend to compact gradually.For the antenna that is used for transmitting in communication product with received signal, can the size of its volume is related to communication product especially reach compact target.
Antenna is in order to radiation or receive electromagnetic a kind of assembly, generally can be from frequency of operation, radiation pattern (radiation pattem), return loss (return loss) and antenna gain parameters such as (antennagain) is known antenna characteristics.The employed antenna of wireless product now must have that volume is little, performance is good and characteristics such as cost is low, can obtain market accepting extensively with certainly.Distinguish with placement location, the employed antenna of wireless product is broadly divided into external and built-in two classes, and based on consideration aesthetic in appearance, external antenna is replaced by the in-building type antenna gradually.On the other hand, because it is very ripe to be fit to the surface mount technology (SMT) of production in enormous quantities, can reduce encapsulation significantly and be connected required cost so be applicable to the antenna component of surface mount technology, thereby become design most popular in the in-building type antenna.
Yet known antenna component is made on the ceramic material usually.Because ceramic material is expensive and frangible, so the production cost of antenna of ceramic core is quite high, and its frangible characteristic makes that also product is not durable.Therefore, press for very much a kind of cheap and firm antenna component of development, solving the shortcoming of known antenna of ceramic core, and can reduce, and increase the stability of product at required cost when circuit integrated.
In above-mentioned background technology, the antenna component of known use ceramic material is not only expensive but also frangible, causes the cost of product to increase and is not durable, thereby can't be widely used in every product.
Summary of the invention
Therefore, main purpose of the present invention is for providing a kind of two-frequency glass-fiber chip antenna, the glass material that its use cost is cheap and firm, to replace known ceramic material, and design antenna component with low cost, that performance is good and firm, and various pattern and shape can be arranged according to actual needs, by suitably adjusting resonance frequency and the frequency ratio that radiation metal line length and sinuous mode just can change antenna, use for various different radio communication systems.
Another object of the present invention is for providing a kind of two-frequency glass-fiber chip antenna, being applicable to surface mount technology, and can do a large amount of productions, and then reduction and required cost when circuit integrated, more increases the product stability.
According to above-described purpose, the invention provides a kind of two-frequency glass-fiber chip antenna.Two-frequency glass-fiber chip antenna of the present invention comprises at least: by the made glass-fiber chip of glass fiber material; Sinuous radiation metal wires; And surface mount contact.The radiation metal wires of wherein wriggling is formed on two surfaces of glass material chip at least, is the major part of antenna in order to radiated electromagnetic wave, and its total length is 1/4 wavelength near the centre frequency of first operation frequency range of antenna; And the surface mount contact is in order to connect the radiation metal wires of wriggling to signal transmssion line, and signal transmssion line then is used for as the signal transmission of circuit system.Two-frequency glass-fiber chip antenna of the present invention can be by suitably adjusting the radiation metal line length and sinuous mode is adjusted its resonance frequency and frequency ratio.Two-frequency glass-fiber chip antenna of the present invention is positioned on the microwave base plate with ground plane, and wherein ground plane is in order to join with the signal ground end.
Description of drawings
Fig. 1 is that the two-frequency glass-fiber chip antenna of a preferred embodiment of the present invention is installed on the structural representation on the microwave base plate;
Fig. 2 is the two-frequency glass-fiber chip antenna structural representation of a preferred embodiment of the present invention;
Fig. 3 is the two-frequency glass-fiber chip antenna elevational schematic view of a preferred embodiment of the present invention;
Fig. 4 is the two-frequency glass-fiber chip antenna schematic top plan view of a preferred embodiment of the present invention;
Fig. 5 is the two-frequency glass-fiber chip antenna schematic side view of a preferred embodiment of the present invention;
Fig. 6 for the two-frequency glass-fiber chip antenna of a preferred embodiment of the present invention about returning simulation and the experimental result curve chart of loss to frequency;
Fig. 7 is the radiation pattern measurement result of the two-frequency glass-fiber chip antenna of a preferred embodiment of the present invention at 2450MHz;
Fig. 8 is the radiation pattern measurement result of the two-frequency glass-fiber chip antenna of a preferred embodiment of the present invention at 5800MHz;
Fig. 9 is the antenna gain measurement result of the two-frequency glass-fiber chip antenna of a preferred embodiment of the present invention in the 2450MHz frequency band;
Figure 10 is the antenna gain measurement result of the two-frequency glass-fiber chip antenna of a preferred embodiment of the present invention in the 5800MHz frequency band;
Figure 11 and Figure 13 are that the two-frequency glass-fiber chip antenna of other embodiment of the present invention is installed on the structural representation on the microwave base plate;
Figure 12 and Figure 14 are the structural representation of the two-frequency glass-fiber chip antenna of other embodiment of the present invention.
10,70,80: two-frequency glass-fiber chip antenna
11,71,81: glass-fiber chip
12,72,82: the radiation metal wires of wriggling
13: the surface mount contact
20: signal transmssion line
30: ground plane
40: microwave base plate
121,721,821: the lower metal line
122,722,822: the upper strata metal wire
123,723,823: connect metal wire
21: experimental result
22: analog result
Embodiment
The invention provides a kind of two-frequency glass-fiber chip antenna.Two-frequency glass-fiber chip antenna of the present invention is that sinuous radiation metal wires is formed on the cheap and firm glass material chip, and by suitably adjusting the radiation metal line length and sinuous mode is adjusted antenna component resonance frequency and frequency ratio, obtaining the operation of two-band, and improve the expensive and frangible shortcoming of the antenna component of known use ceramic material.
Please refer to Fig. 1, Fig. 1 is that the two-frequency glass-fiber chip antenna of a preferred embodiment of the present invention is installed on the structural representation on the microwave base plate.Two-frequency glass-fiber chip antenna 10 is positioned on the microwave base plate 40 with ground plane 30, and ground plane 30 joins with the signal ground end.Microwave base plate 40 is of a size of for example about 100 * 35mm
2, wherein microwave base plate 40 be positioned at two-frequency glass-fiber chip antenna 10 under part do not have ground plane, its size is for example about 9 * 5mm
2 Microwave base plate 40 can be regarded as the circuit board of a wireless communications handset, and just this antenna component is applied on the wireless communications handset Application Example as bluetooth or WLAN system.In addition, signal transmssion line 20 is in order to as the transmission of the signal of circuit system, and this signal transmssion line 20 for example can be microstrip transmission line, coaxial feeder or other can transmit the assembly of electromagnetic signal.
Please refer to Fig. 2, Fig. 2 is the structural representation of the two-frequency glass-fiber chip antenna of a preferred embodiment of the present invention.As shown in Figure 2, two-frequency glass-fiber chip antenna 10 of the present invention comprises at least: a glass-fiber chip 11; One sinuous radiation metal wires 12; An and surface mount contact 13.Surface mount contact 13 is in order to connect the radiation metal wires 12 of wriggling to signal transmssion line 20.Glass-fiber chip 11 is that its dielectric constant is between about 4 to about 5 by the made rectangle cylinder of glass fiber material.The thickness of glass-fiber chip 11 can not be too thin, otherwise can have a strong impact on the bandwidth of antenna, and the thickness that this preferred embodiment is used is for example about 1.6mm, yet the thickness of glass-fiber chip 11 of the present invention also can be for example about 0.8mm.The radiation metal wires 12 of wriggling is antenna major parts in order to radiated electromagnetic wave, and it is formed on two surfaces of glass-fiber chip 11 at least.The radiation metal wires 12 of wriggling can be made by any electric conductor, for example: silver, copper etc.The radiation metal wires 12 of wriggling comprises the lower metal line 121 of the lower surface that is positioned at glass-fiber chip 11 more at least; Be positioned at the upper strata metal wire 122 of the upper surface of glass-fiber chip 11; And connect metal wire 123, wherein connect the side that metal wire 123 is positioned at glass-fiber chip 11, so as to connecting lower metal line 121 and upper strata metal wire 122.With regard to design, the total length of the radiation metal wires 12 of wriggling approximately be the centre frequency of antenna first operation frequency range (for example: 1/4 wavelength 2450MHz), for example: about 35mm.The two-frequency glass-fiber chip antenna of a preferred embodiment of the present invention is of a size of for example about 6 * 6 * 1.6mm
3, first and second operation frequency range of antenna then is the first two resonance frequency of sinuous radiation metal wires 12, and the total length of the sinuous radiation metal wires 12 of adjustment can change first resonance frequency of antenna.On the other hand, the width of the radiation metal wires 12 of change wriggling (for example: about 1.0mm) can adjust the frequency ratio of the first two resonance frequency of antenna, for example: the radiation metal wires 12 of wriggling can be done by thin to wide variation, so as to the size of the centre frequency of adjusting second operation frequency range.The width of the radiation metal wires 12 of wriggling can not be a certain value from origin-to-destination, and the radiation metal wires 12 of just wriggling can have a plurality of width.Therefore, the design of different length, width and shape by the radiation metal wires 12 of wriggling can reach required operation frequency range and frequency ratio easily.
Please refer to Fig. 3 to Fig. 5, wherein Fig. 3 is the elevational schematic view of the two-frequency glass-fiber chip antenna of a preferred embodiment of the present invention; Fig. 4 is the schematic top plan view of the two-frequency glass-fiber chip antenna of a preferred embodiment of the present invention; And Fig. 5 is the schematic side view of the two-frequency glass-fiber chip antenna of a preferred embodiment of the present invention.As shown in Figure 3, lower metal line 121 is made up of three lines, and these three lines wriggle in three limits on every side of the lower surface of glass-fiber chip 11.The microwave base plate 40 that contacts with initial first line wherein has ground plane 30, and this first line vertically is connected in signal transmssion line 20 directions usually.Then, second line of lower metal line 121 vertically is connected in first line, three-way second line that then vertically is connected in.As shown in Figure 4, upper strata metal wire 122 is made up of three horizontal lines and two vertical lines, it forms order is to form first horizontal line earlier, then connect first vertical line, connect second horizontal line again, and then connect second vertical line, and this second vertical line only extends to one side of the upper surface of glass-fiber chip 11 approximately is position intermediate, just connect the 3rd horizontal line then again, and the 3rd horizontal length is short than first horizontal line and second horizontal line, so can not contact with first vertical line.In addition, as shown in Figure 5, between lower metal line 121 and the upper strata metal wire 122 by being connected with the two vertical metal wire 123 that is connected.The sinuous mode of the metal wire of this preferred embodiment can reach the little requirement of antenna volume.
As mentioned above, the two-frequency glass-fiber chip antenna of a preferred embodiment of the present invention can operate in 2450MHz (first operation frequency range) and 5800MHz (second operational frequency bands).Please refer to Fig. 6, Fig. 6 for the two-frequency glass-fiber chip antenna of a preferred embodiment of the present invention about returning simulation and the experimental result curve chart of loss to frequency.As shown in Figure 6, curve 21 is an experimental measurements among the figure, and curve 22 is for using electromagnetical analogies software HFSS gained result, and experiment measuring and computer simulation results are quite identical.Its bandwidth is respectively 105MHz and 820MHz.Dotted line among Fig. 6 is the reference point of this preferred embodiment, and the loss of returning shown in it is about 7.3dB, just is equivalent to 1: 2.5 voltage standing wave ratio.
Please refer to Fig. 7 and Fig. 8, Fig. 7 is the radiation pattern measurement result of the two-frequency glass-fiber chip antenna of a preferred embodiment of the present invention at 2450MHz, and Fig. 8 is the radiation pattern measurement result of the two-frequency glass-fiber chip antenna of a preferred embodiment of the present invention at 5800MHz.Please refer to Fig. 9 and Figure 10, Fig. 9 is the antenna gain measurement result of the two-frequency glass-fiber chip antenna of a preferred embodiment of the present invention in the 2450MHz frequency band, and Figure 10 is the antenna gain measurement result of the two-frequency glass-fiber chip antenna of a preferred embodiment of the present invention in the 5800MHz frequency band.By the gained measurement result as can be known, during in about 2380MHz to about 2500MHz frequency band operation, the antenna gain of a preferred embodiment of the present invention is about between the 1dBi to 2dBi.And during in about 5100MHz to the frequency band operation of about 5900MHz, the antenna gain of one embodiment of the invention is about between the 1dBi to 2dBi.
Comprehensive the above, the two-frequency glass-fiber chip antenna of a preferred embodiment of the present invention is enough to contain and covers 2450MHz and the required bandwidth of two ISM band of 5800MHz (Industrial-Scientific-Medical band), have good antenna gain simultaneously, be fit to very much the application of bluetooth or WLAN.
In addition, the shape of glass-fiber chip 11 as shown in Figure 2 also can be and is selected from the group that a rectangular cylinder, a square column and a cylinder are formed, and the radiation metal wires 12 of wriggling also can form by various different patterns.Please refer to Figure 11 to Figure 14, wherein Figure 11 and Figure 13 are installed on structural representation on the microwave base plate for the two-frequency glass-fiber chip antenna of other embodiment of the present invention, and Figure 12 and Figure 14 are the structural representation of the two-frequency glass-fiber chip antenna of other embodiment of the present invention.Figure 11 is the two-frequency glass-fiber chip antenna 70 of the sinuous radiation metal wires 72 of the different patterns of tool with Figure 12, and the radiation metal wires 72 of wriggling is formed on two surfaces of glass-fiber chip 71 at least.The radiation metal wires 72 of wriggling comprises lower metal line 721 more at least; Upper strata metal wire 722 and connection metal wire 723.The two-frequency glass-fiber chip antenna 80 of Figure 13 and Figure 14, its sinuous radiation metal wires 82 is used cylindrical glass-fiber chip 81, and is formed with the radiation metal wires 82 of wriggling at least on two surfaces of glass-fiber chip 81.This sinuous radiation metal wires 82 comprises lower metal line 821 more at least; Upper strata metal wire 822 and connection metal wire 823.
On the other hand, the radiation metal wires of wriggling is removed and can be formed at least two surfaces of glass-fiber chip, and according to different design and crafts, sinuous radiation metal wires also can be formed at the single surface of glass-fiber chip, or is formed at the inside of glass-fiber chip.
More than send out described in each embodiment in the present invention and to send out two-frequency glass-fiber chip antenna and send out the size of each assembly, shape and form position etc. only for illustrating, the present invention can adjust according to actual needs, so the present invention is also not subject to the limits.
Therefore, advantage of the present invention is: a kind of two-frequency glass-fiber chip antenna is provided, this The glass material that bright two-frequency glass-fiber chip antenna use cost is cheap and firm can replace Known ceramic material does not have the shortcoming of known antenna of ceramic core fully. The present invention can establish Count out antenna component with low cost, that performance is good and firm, and can be according to actual needs with each Plant different pattern and shapes and make, by suitably adjusting the radiation metal line length and wriggling The Yan mode can change resonant frequency and the frequency ratio of antenna, thereby each can be provided widely Planting the different radio communication system uses.
Another advantage of the present invention is: a kind of two-frequency glass-fiber chip antenna is provided, can have fitted Be used for surface mount technology, thereby can do a large amount of productions, so reduction and circuit integrated time institute The cost that needs more increases the stability of product. So two-frequency glass-fiber chip antenna tool of the present invention High industry using value is arranged.
Claims (10)
1, a kind of two-frequency glass-fiber chip antenna is characterized in that, this two-frequency glass-fiber chip antenna has one first operation frequency range and one second operation frequency range, and this two-frequency glass-fiber chip antenna comprises at least:
One glass-fiber chip, wherein this glass-fiber chip is made by a glass fiber material, and its relative dielectric constant is between about 4 to about 5;
One sinuous radiation metal wires, wherein this radiation metal wires is formed on two surfaces of this glass-fiber chip at least; And
One surface mount contact is so as to connecting radiation metal wires to a signal transmssion line that should wriggle.
2, two-frequency glass-fiber chip antenna as claimed in claim 1 is characterized in that, the total length of this sinuous radiation metal wires is about 1/4 wavelength of the centre frequency of this first operation frequency range.
3, two-frequency glass-fiber chip antenna as claimed in claim 1 is characterized in that, the centre frequency of this first operation frequency range and this second operation frequency range is the first two resonance frequency of this sinuous radiation metal wires.
4, two-frequency glass-fiber chip antenna as claimed in claim 1 is characterized in that, the shape of this glass-fiber chip is selected from the group that a rectangular cylinder, a square column and a cylinder are formed.
5, two-frequency glass-fiber chip antenna as claimed in claim 1 is characterized in that, this sinuous radiation metal wires comprises more at least:
One lower floor's metal wire, wherein this lower metal line is positioned at a lower surface of this glass-fiber chip;
One upper strata metal wire, wherein this upper strata metal wire is positioned at a upper surface of this glass-fiber chip; And
One connects metal wire, and wherein this connection metal wire is positioned at a side of this glass-fiber chip, so as to connecting this lower metal line and this upper strata metal wire.
6, two-frequency glass-fiber chip antenna as claimed in claim 5 is characterized in that, this lower metal line comprises at least:
One first lower layer of water horizontal line, wherein the horizontal end of this first lower floor is vertical with this signal transmssion line;
One first lower vertical line, wherein an end of this first lower vertical line is connected in this horizontal other end of first lower floor; And
One second lower layer of water horizontal line, wherein the horizontal end of this second lower floor is connected in the other end of this first lower vertical line, and this horizontal other end of second lower floor is connected in an end of this connection metal wire.
7, two-frequency glass-fiber chip antenna as claimed in claim 5 is characterized in that, this upper strata metal wire comprises at least:
One first upper water horizontal line, wherein this first upper water horizontal line, one end is connected in the other end of this connection metal wire;
One first upper vertical line, wherein this first upper vertical line, one end is connected in this horizontal other end in first upper strata;
One second upper water horizontal line, wherein the horizontal end in this second upper strata is connected in the other end of this first upper vertical line;
One second upper vertical line, wherein an end of this second upper vertical line is connected in this horizontal other end in second upper strata, and this second upper vertical line extends to about centre position on one side of this upper surface of this glass-fiber chip; And
One the 3rd upper water horizontal line, wherein the horizontal end in the 3rd upper strata is connected in the other end of this second upper vertical line, and the horizontal length in the 3rd upper strata is less than this first upper water horizontal line and this second upper water horizontal line.
8, two-frequency glass-fiber chip antenna as claimed in claim 1 is characterized in that, this sinuous radiation metal wires has a plurality of width.
9, two-frequency glass-fiber chip antenna as claimed in claim 1 is characterized in that, the width of this sinuous radiation metal wires is a certain value.
10, two-frequency glass-fiber chip antenna as claimed in claim 1, it is characterized in that, this two-frequency glass-fiber chip antenna is installed on the microwave base plate, this microwave base plate has a ground plane, and the part of the contact-making surface between this microwave base plate and this two-frequency glass-fiber chip antenna does not have this ground plane, and this signal transmssion line is positioned on this microwave base plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01140217 CN1208872C (en) | 2001-12-05 | 2001-12-05 | Two-frequency glass-fiber chip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01140217 CN1208872C (en) | 2001-12-05 | 2001-12-05 | Two-frequency glass-fiber chip antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1423366A true CN1423366A (en) | 2003-06-11 |
| CN1208872C CN1208872C (en) | 2005-06-29 |
Family
ID=4675729
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01140217 Expired - Fee Related CN1208872C (en) | 2001-12-05 | 2001-12-05 | Two-frequency glass-fiber chip antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1208872C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102683804A (en) * | 2011-03-14 | 2012-09-19 | 深圳光启高等理工研究院 | Metamaterial radio-frequency antenna |
| CN102969563A (en) * | 2012-11-20 | 2013-03-13 | 青岛歌尔声学科技有限公司 | Dual-band antenna and manufacturing method thereof |
| JP2022167772A (en) * | 2021-04-23 | 2022-11-04 | 台湾禾邦電子有限公司 | Antenna structure, method for manufacturing antenna structure, method for assembling antenna structure, method for using antenna structure, and movable device |
-
2001
- 2001-12-05 CN CN 01140217 patent/CN1208872C/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102683804A (en) * | 2011-03-14 | 2012-09-19 | 深圳光启高等理工研究院 | Metamaterial radio-frequency antenna |
| CN102683804B (en) * | 2011-03-14 | 2016-05-04 | 深圳光启高等理工研究院 | A kind of super material radio-frequency antenna |
| CN102969563A (en) * | 2012-11-20 | 2013-03-13 | 青岛歌尔声学科技有限公司 | Dual-band antenna and manufacturing method thereof |
| CN102969563B (en) * | 2012-11-20 | 2015-12-02 | 青岛歌尔声学科技有限公司 | A kind of double frequency band aerial and preparation method thereof |
| JP2022167772A (en) * | 2021-04-23 | 2022-11-04 | 台湾禾邦電子有限公司 | Antenna structure, method for manufacturing antenna structure, method for assembling antenna structure, method for using antenna structure, and movable device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1208872C (en) | 2005-06-29 |
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