CN101924569A - Double-frequency blended coupler unit as well as double-frequency blended coupler and receiver thereof - Google Patents
Double-frequency blended coupler unit as well as double-frequency blended coupler and receiver thereof Download PDFInfo
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- CN101924569A CN101924569A CN2009101461377A CN200910146137A CN101924569A CN 101924569 A CN101924569 A CN 101924569A CN 2009101461377 A CN2009101461377 A CN 2009101461377A CN 200910146137 A CN200910146137 A CN 200910146137A CN 101924569 A CN101924569 A CN 101924569A
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Abstract
The invention discloses a double-frequency blended coupler unit as well as a double-frequency blended coupler and a receiver thereof. The double-frequency blended coupler unit comprises parallel coupling lines, a short transmission line section, a first transmission line and a second transmission line, wherein the first coupling line and the second coupling line are substantially parallel and have identical lengths substantially; both ends of the short transmission line section are connected to both ends of the coupling lines; and one end of the first transmission line is connected with the other end of the first coupling line, and one end of the second transmission line is connected with the other end of the second coupling line.
Description
Technical field
The present invention relates to a kind of coupler, relate in particular to that a kind of double frequency blendes together coupler unit, its double frequency blendes together coupler and its receiver.
Background technology
Development along with mechanics of communication, at present a lot of computers and hand-held device all use wireless communication technique and Internet line, the receiver that wherein is used for carrying out wireless telecommunications generally all needs coupler, with the coupling of signal that antenna is received, and send communication wafer in the receiver to by transmission line.In addition, electronic product marches toward gently, the trend of thin, short, little and power saving, so coupler is more little, then meets the trend of electronic product more, even may be able to reduce the cost of manufacturing.
Please refer to United States Patent (USP) the 5th, 382, No. 925, in this piece patent, the single-frequency that people such as Hayashi have proposed a kind of sandwich construction blendes together coupler, reduced area partly though this kind single-frequency blendes together coupler, it must use multi-layer framework, so the minimizing of manufacturing cost and area is all limited.In addition, the couplers that the people proposed such as Hayashi are the single-frequency coupler, and it only has a specific operational frequency bands.
Then, please refer to United States Patent (USP) the 6th, 756,680B2 number, in this piece patent, the double frequency that Shin has then proposed a kind of sandwich construction blendes together coupler, and this double frequency blendes together coupler and utilizes dielectric layer (dielectric layer) the coupling amount that is provided to control the frequency of operation of second frequency band, to reach the coupling purpose of the signal of two kinds of different frequencies simultaneously.But this kind double frequency blendes together coupler because have sandwich construction, so the minimizing of manufacturing cost and area is still limited.
Please refer in November, 2004 by people such as Cheng in the paper that IEEE delivered, " 90 ° of branch-line coupler of A novel approach to the design and implementation of dual-band compact planar ", and with reference in June, 2007 by papers that the people delivered such as Hsu, " Design of dual-band microstrip rat race coupler with circuit miniaturization ".People such as Cheng and Hsu has proposed the designed double frequency that goes out of employing uniform transmission line (uniform transmission line) and step impedance transmission lines (stepped-impedance transmission line) respectively and has blended together coupler, but blemish in an otherwise perfect thing is, these double frequencies blend together the area that coupler dwindles and still dislike not enough slightly, and the space that can improve is arranged.
Summary of the invention
The embodiment of the invention provides a kind of double frequency to blend together coupler unit, and this double frequency blendes together coupler unit and comprises one section parallel coupled line (coupled line), short transmission line segment, first transmission line (transmissionline) and second transmission line.One end of short transmission line segment (short transmission line) is connected to the two ends of coupling line mutually.One end of first transmission line and an end of coupling line couple, and an end of second transmission line is connected with the other end of coupling line.
According to embodiments of the invention, wherein said first transmission line and second transmission line can be uniform transmission line or transmission line heterogeneous.
The embodiment of the invention also provides a kind of double frequency to blend together coupler, and it comprises that a plurality of double frequencies blend together coupler unit and at least four ends (port).Wherein each double frequency blendes together coupler unit and comprises one section parallel coupled line, short transmission line segment, first transmission line and second transmission line.One end of short transmission line segment is connected to an end of coupling line mutually, and its other end is connected to the other end of coupling line mutually.One end of first transmission line and an end of coupling line join, and an end of second transmission line and the other end of coupling line join.Wherein each double frequency blendes together first transmission line of coupler unit and second transmission line that another double frequency blendes together coupler unit joins, and these four ends are connected in four double frequencies and blend together on first transmission line of coupler unit.
According to embodiments of the invention, the layout that wherein said double frequency blendes together coupler is shaped as circle, and the quantity that double frequency blendes together coupler unit is 6.
The embodiment of the invention provides a kind of receiver again, and it comprises the reception wafer.The reception wafer has the double frequency that is arranged at wherein and blendes together coupler, and this double frequency blendes together coupler and comprises that a plurality of double frequencies blend together coupler unit and at least four ends.Wherein each double frequency blendes together coupler unit and comprises one section coupling line, short transmission line segment, first transmission line and one second transmission line.One end of short transmission line segment is connected to an end of coupling line mutually, and its other end is connected to the other end of coupling line mutually.One end of first transmission line is connected with the other end of first coupling line, and an end of second transmission line is connected with the other end of second coupling line.Wherein each double frequency first transmission line of blending together coupler unit is connected with second transmission line that another double frequency blendes together coupler unit, and these four ends are connected in four double frequencies and blend together on first transmission line of coupler unit.
Based on above-mentioned, the double frequency that embodiments of the invention provided blendes together coupler unit and double frequency thereof and blendes together can be coupled simultaneously signal on two kinds of different frequency bands of coupler, and its size is little, is easy to be integrated in the communication wafer, so that circuit can be microminiaturized.In addition, described double frequency blend together coupler unit and double frequency thereof blend together coupler more can be by adjusting its structural parameters, change double frequency and blend together the frequency of operation that coupler unit and double frequency thereof blend together second frequency band of coupler.
For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and cooperate institute's accompanying drawing to be described in detail below.
Description of drawings
Fig. 1 is the structural representation that double frequency that embodiments of the invention provide blendes together coupler unit 100;
Fig. 2 is the structural representation that double frequency that embodiments of the invention provide blendes together coupler 200.
The main element symbol description:
100: double frequency blendes together coupler unit 105,110: coupling line
115,120: transmission line 125: the short transmission line segment
200: double frequency blendes together coupler 201～206: double frequency blendes together coupler unit
221～224: end 211,212: coupling line
213: short transmission line segment 214,215: transmission line
Embodiment
Below will blend together coupler unit and use these double frequencies to blend together the formed double frequency of coupler unit and blend together coupler with the double frequency that accompanying drawing and explanation are introduced embodiments of the invention and provided, yet following example all only is a kind of exemplary embodiment, and it is all non-in order to limit the present invention.
As shown in Figure 1, Fig. 1 is the structural representation that double frequency that embodiments of the invention provide blendes together coupler unit 100.Double frequency blendes together coupler unit 100 and comprises parallel coupled line 105,110, short transmission line segment 125, transmission line 115 and 120.Wherein the short transmission line segment 125, or claim one of short circuit line 125 to be terminated at an end of coupling line 105, and its other end is connected to an end of coupling line 110.One end of transmission line 115 is connected with the other end of coupling line 105, and an end of transmission line 120 is connected with the other end of coupling line 110.
In this embodiment, coupling line 105 is parallel in fact with 110, is all θ
CAmong this embodiment, transmission line 115 and 120 is transmission lines of straight line pattern, but transmission line 115 and 120 also can be the transmission line of curve profile.Transmission line 115 in fact can be vertical with 110 with coupling line 105 with 120, that is to say that the transmission line 115 and the angle of the junction of coupling line 105 are essentially 90 degree, and the angle of the junction of transmission line 120 and coupling line 110 is essentially 90 degree.Yet the above-mentioned transmission line 115,120 and the angle of coupling line 105,110 are not must 90 degree.
In addition, coupling line 105 can be uniform coupling line or coupling line heterogeneous with coupling line 110.Transmission line 115 can be uniform transmission line or transmission line heterogeneous, and similarly, transmission line 120 can be uniform transmission line or transmission line heterogeneous.In addition, in this embodiment, transmission line 115 and 120 length are respectively θ
1With θ
2Double frequency blendes together coupler unit 100 can be by adjusting the structural parameters of transmission line 115 and 120, just length θ
1With θ
2, adjust the frequency of operation of its second frequency band, wherein the frequency of operation of second frequency band be first frequency band frequency of operation n doubly, n is a positive count.In addition, double frequency blendes together the structural parameters that coupler unit 100 can also pass through to adjust transmission line 115,120 and coupling line 115,110, just length θ
1, θ
2With θ
cAdjust the phase difference that double frequency blendes together the signal in the coupler unit 100.So, double frequency blendes together coupler unit 100 and itself more can be considered as one section phase-shifter (phase shifter).
Be noted that double frequency blendes together coupler unit 100 and only utilizes coupling line 105,110, short transmission line segment 125, transmission line 115 and 120 to constitute, so it can be that the double frequency of single layer structure blendes together coupler unit, so area can reduce in large quantities.In addition, because the relation that area can be reduced in a large number, double frequency blendes together coupler unit 100 and is easier to be integrated in semiconductor wafer, plane electric circuit element or the multilayer circuit element.
The frequency of operation that double frequency blendes together first frequency band in the double frequency of coupler unit 100 can be designed near 2,400,000,000 hertz (2.4GHz), and the frequency of operation of second frequency band in the double frequency can be designed near 5,800,000,000 hertz (5.8GHz).So, double frequency blendes together coupler unit 100 and more can be applied in the communication receiving/transmission machine of agreement such as IEEE802.11a/b/g.Certainly, above-mentioned application is not in order to limit the present invention, as long as selected double frequency blendes together the frequency of first frequency band of coupler unit 100, to cooperate its impedance and transmission line 115 and 120 length θ
1With θ
2Between curved line relation, just can determine the resistance value of coupling line 105 and 110, thus the length θ of decision coupling line 105 and 110
C
Then, as shown in Figure 2, Fig. 2 is the structural representation that double frequency that embodiments of the invention provide blendes together coupler 200.It mainly is to blend together 201～206 of coupler units by a plurality of double frequencies that are similar to Fig. 1 to constitute that double frequency blendes together coupler 200, and double frequency blendes together coupler 200 and comprises that a plurality of double frequencies blend together coupler unit 201～206 and four ends.Below to blend together coupler unit 201 with double frequency be that example illustrates that double frequency blendes together the structure of coupler unit 201～206 and the relation of joining thereof, though below only blending together coupler unit 201 with double frequency is that example illustrates, this field have know usually the knowledgeable can the rest may be inferred double frequency blendes together the structure of coupler unit 202～206 and the relation of joining thereof.
As shown in Figure 2, double frequency has one section parallel coupling line 211 and 212 in the middle of blending together coupler unit 201, link to each other with short transmission line segment 213, and these two coupling lines 211 is connected with 215 with transmission line 214 respectively again with 212.In addition, the double frequency transmission line 214 and 215 that blendes together coupler unit 201 is connected to the transmission line that double frequency blendes together coupler unit 202 and 206 again respectively.Port 221～224 is connected to double frequency and blendes together on the transmission line of coupler unit 205,206,201 and 202, and end 221～224 is in order to give transmission line from transmission line received signal or transmission signals.
The difference that the double frequency that double frequency blendes together coupler unit 201 and Fig. 1 blendes together coupler unit 100 only is that transmission line 214 and 215 is not the transmission line of straight line kenel, and is the transmission line of curve kenel.Therefore, in Fig. 2, double frequency blendes together coupler unit 201～206th, forms double frequency in the mode of circular layout and blendes together coupler 200.In addition, in this embodiment, the total length of all transmission lines can be 6/4ths times of wavelength of corresponding double frequency first frequency band that blendes together coupler 200.But be noted that the present invention is not limited to this.Double frequency blendes together coupler and also can blend together coupler unit by many double frequencies and finish with the layout type of the shape of different closed curves.
In addition, double frequency blendes together the communication receiving/transmission machine that coupler 200 equally can be applied to agreement such as IEEE 802.11a/b/g, for example, is arranged in the reception wafer of receiver, blendes together coupler in order to the double frequency of being used as receiver.Certainly, above-mentioned application is not that double frequency blendes together the frequency of operation that coupler 200 also can be adjusted its first frequency band and second frequency band, in the transceiver that is used for different frequency bands and protocol standard in order to qualification the present invention.
In sum, the double frequency that embodiments of the invention provided blendes together coupler unit and double frequency thereof and blendes together can be coupled simultaneously signal on two kinds of different frequency bands of coupler, and its size is little, is easy to be integrated in the communication wafer, so that circuit can be microminiaturized.In addition, described double frequency blend together coupler unit and double frequency thereof blend together coupler more can be by adjusting its structural parameters, change double frequency and blend together the frequency of operation that coupler unit and double frequency thereof blend together second frequency band of coupler.
It should be noted that at last: above embodiment is only in order to technical scheme of the present invention to be described but not limit it, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement technical scheme of the present invention, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solution of the present invention.
Claims (25)
1. a double frequency blendes together coupler unit, wherein, comprising:
One parallel coupled line, a short transmission line segment, one are terminated at an end of described coupling line, and its other end is connected to the other end of described coupling line; And
One first transmission line and one second transmission line, an end of described first transmission line is connected with the other end of first coupling line, and an end of described second transmission line is connected with the other end of second coupling line.
2. double frequency according to claim 1 blendes together coupler unit, and wherein said first transmission line is vertical with described second coupling line with described first coupling line in fact with described second transmission line.
3. double frequency according to claim 1 blendes together coupler unit, it is characterized in that described first coupling line and described second coupling line are all uniform coupling line, or are all coupling line heterogeneous, or one be uniform coupling line wherein, another person is a coupling line heterogeneous.
4. double frequency according to claim 1 blendes together coupler unit, wherein said first transmission line and described second transmission line are all uniform transmission line, or be all transmission line heterogeneous, or one be uniform transmission line wherein, another person is a transmission line heterogeneous.
5. double frequency according to claim 1 blendes together coupler unit, and it is that the double frequency of single layer structure blendes together coupler unit that wherein said double frequency blendes together coupler unit.
6. double frequency according to claim 1 blendes together coupler unit, and wherein said double frequency blendes together one first frequency band of coupler unit and the frequency of operation of one second frequency band is about 2,400,000,000 hertz and 5,800,000,000 hertz respectively.
7. double frequency according to claim 1 blendes together coupler unit, wherein by changing the structural parameters of described first transmission line and described second transmission line, to adjust the frequency of operation that described double frequency blendes together one second frequency band of coupler unit.
8. double frequency according to claim 1 blendes together coupler unit, wherein by changing the structural parameters of described first transmission line, second transmission line and parallel coupled line, to adjust the phase difference that described double frequency blendes together signal that coupler unit is transmitted.
9. a double frequency blendes together coupler, comprises that a plurality of double frequencies blend together coupler unit and at least four ends, and wherein each double frequency blendes together coupler unit and comprises:
One parallel coupled line and a short circuit line segment, one is terminated at an end of first coupling line, and its other end is connected to an end of second coupling line; And
One first transmission line and one second transmission line, an end of described first transmission line is connected with the other end of described first coupling line, and an end of described second transmission line is connected with the other end of described second coupling line;
Wherein each double frequency described first transmission line of blending together coupler unit is connected with described second transmission line that another double frequency blendes together coupler unit, and a plurality of described end is connected in a plurality of described double frequencies and blendes together on a plurality of described first transmission line of coupler unit.
10. double frequency according to claim 9 blendes together coupler, and the layout that wherein said double frequency blendes together coupler is shaped as circle, and the quantity that a plurality of described double frequency blendes together coupler unit is 6.
11. double frequency according to claim 9 blendes together coupler, wherein said first transmission line is vertical with described second coupling line with described first coupling line in fact with described second transmission line.
12. double frequency according to claim 9 blendes together coupler, wherein said first coupling line and described second coupling line are all uniform coupling line, or are all coupling line heterogeneous, or one are uniform coupling line wherein, and another person is a coupling line heterogeneous.
13. double frequency according to claim 9 blendes together coupler, wherein said first transmission line and described second transmission line are all uniform transmission line, or are all transmission line heterogeneous, or one are uniform transmission line wherein, and another person is a transmission line heterogeneous.
14. double frequency according to claim 9 blendes together coupler, it is that the double frequency of single layer structure blendes together coupler unit that wherein said double frequency blendes together coupler unit.
15. double frequency according to claim 9 blendes together coupler, wherein said double frequency blendes together one first frequency band of coupler and the frequency of operation of one second frequency band is about 2,400,000,000 hertz and 5,800,000,000 hertz respectively.
16. double frequency according to claim 9 blendes together coupler, wherein by changing the structural parameters of described first transmission line and described second transmission line, to adjust the frequency of operation that described double frequency blendes together one second frequency band of coupler.
17. double frequency according to claim 9 blendes together coupler, wherein by changing the structural parameters of described first transmission line and described second transmission line, to adjust the phase difference of described first transmission line and described second signal that transmission line is transmitted.
18. receiver, comprise that one receives wafer, described reception wafer has a double frequency and blendes together coupler and be arranged at wherein, and described double frequency blendes together coupler and comprises that a plurality of double frequencies blend together coupler unit and at least four ports, and wherein each double frequency blendes together coupler unit and comprises:
One first coupling line and one second coupling line, described first coupling line is parallel in fact with described second coupling line, and length is identical in fact;
One short circuit line segment, one are terminated at an end of described first coupling line, and its other end is connected to an end of described second coupling line; And
One first transmission line and one second transmission line, an end of described first transmission line is connected with the other end of described first coupling line, and an end of described second transmission line is connected with the other end of described second coupling line;
Wherein each double frequency described first transmission line of blending together coupler unit is connected with described second transmission line that another double frequency blendes together coupler unit, and a plurality of described port is coupled to a plurality of described double frequencies and blendes together on a plurality of described first transmission line of coupler unit.
19. receiver according to claim 18, the layout that wherein said double frequency blendes together coupler is shaped as circle, and the quantity that described a plurality of double frequency blendes together coupler unit is 6.
20. receiver according to claim 18, wherein said first coupling line and described second coupling line are all uniform coupling line, or are all coupling line heterogeneous, or one are uniform coupling line wherein, and another person is a coupling line heterogeneous.
21. receiver according to claim 18, wherein said first transmission line and described second transmission line are all uniform transmission line, or are all transmission line heterogeneous, or one are uniform transmission line wherein, and another person is a transmission line heterogeneous.
22. it is that the double frequency of single layer structure blendes together coupler unit that receiver according to claim 18, wherein said double frequency blend together coupler unit.
23. receiver according to claim 18, wherein said double frequency blend together one first frequency band of coupler and the frequency of operation of one second frequency band is about 2,400,000,000 hertz and 5,800,000,000 hertz respectively.
24. receiver according to claim 18 is wherein by changing the structural parameters of described first transmission line and described second transmission line, to adjust the frequency of operation that described double frequency blendes together one second frequency band of coupler.
25. receiver according to claim 18 is wherein by changing the structural parameters of described first transmission line and described second transmission line, to adjust the phase difference of described first transmission line and described second signal that transmission line is transmitted.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910146137 CN101924569B (en) | 2009-06-10 | 2009-06-10 | Double-frequency blended coupler unit as well as double-frequency blended coupler and receiver thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910146137 CN101924569B (en) | 2009-06-10 | 2009-06-10 | Double-frequency blended coupler unit as well as double-frequency blended coupler and receiver thereof |
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| Publication Number | Publication Date |
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| CN101924569A true CN101924569A (en) | 2010-12-22 |
| CN101924569B CN101924569B (en) | 2013-05-22 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6756680B2 (en) * | 1999-05-10 | 2004-06-29 | International Business Machines Corporation | Flip chip C4 extension structure and process |
| US7541888B2 (en) * | 2007-03-23 | 2009-06-02 | The Chinese University Of Hong Kong | Dual band coupled-line balanced-to-unbalanced bandpass filter |
-
2009
- 2009-06-10 CN CN 200910146137 patent/CN101924569B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6756680B2 (en) * | 1999-05-10 | 2004-06-29 | International Business Machines Corporation | Flip chip C4 extension structure and process |
| US7541888B2 (en) * | 2007-03-23 | 2009-06-02 | The Chinese University Of Hong Kong | Dual band coupled-line balanced-to-unbalanced bandpass filter |
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