CN106330167A - Integrated circuit for realizing broadband coupling - Google Patents
Integrated circuit for realizing broadband coupling Download PDFInfo
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- CN106330167A CN106330167A CN201510375063.XA CN201510375063A CN106330167A CN 106330167 A CN106330167 A CN 106330167A CN 201510375063 A CN201510375063 A CN 201510375063A CN 106330167 A CN106330167 A CN 106330167A
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- transmission branch
- coupling
- integrated circuit
- couple device
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Abstract
The invention relates to the technical field of electronics, and particularly relates to an integrated circuit. The integrated circuit for realizing broadband coupling comprises a first transmission branch, a second transmission branch, a third transmission branch, and a fourth transmission branch, wherein the first transmission branch is connected between an input end and a first intersection node; the second transmission branch is connected between the first intersection node and an output end; the third transmission branch is connected between a coupling end and a second intersection node; the fourth transmission branch is connected between the second intersection node and a terminal; a coupling device is connected between the first intersection node and the second intersection node; and a grounding capacitor is connected between the coupling end and the grounding end, and the grounding capacitor serves as a load at the coupling end for forming mismatch at the coupling end to increase the coupling bandwidth, and the purpose of broadband coupling is realized.
Description
Technical field
The present invention relates to electronic technology field, be specifically related to a kind of integrated circuit.
Background technology
The major function of bonder is to carry out power distribution, at electronic communication according to certain proportionate relationship
Field is widely used, and common coupler structure is as it is shown in figure 1, be four port networks, and port 1 is defeated
Entering end, port 2 is outfan, and port 3 is coupled end, and port 4 is to connect the terminal prot of 50 ohm,
The coupler structure of this prior art disclosure satisfy that arrowband demand mostly, however as the rising of frequency,
The stiffness of coupling of this bonder becomes big, and the stiffness of coupling at high frequency Yu low frequency may differ by below 10dB,
Affect the performance of system.
Summary of the invention
It is an object of the invention to, it is provided that a kind of integrated circuit realizing broadband couple device, solve above technology
Problem；
Technical problem solved by the invention can realize by the following technical solutions:
Realize the integrated circuit of broadband couple device, wherein, including,
First transmission branch, is connected to an input and one first and crosses between node；
Second transmission branch, is connected to described first and crosses between node and an outfan；
3rd transmission branch, is connected to a coupled end and one second and crosses between node；
4th transmission branch, is connected to described second and crosses between node and a terminal；
Described first cross node and described second cross between node connect coupled apparatus；
Connecting a ground capacity between described coupled end and earth terminal, described ground capacity is as described coupling
The load of end, for forming mismatch to increase coupling bandwidth in described coupled end.
The integrated circuit realizing broadband couple device of the present invention, described first transmission branch, described second transmission
Branch road, described 3rd transmission branch, described 4th transmission branch, described coupled apparatus and described electric capacity are logical
Cross integrated passive devices technique to be integrated on same chip.
The integrated circuit realizing broadband couple device of the present invention, described first transmission branch, described second transmission
Branch road, described 3rd transmission branch, described 4th transmission branch, described coupled apparatus and described electric capacity are logical
Cross integrated circuit technology to be formed in same dielectric base.
The integrated circuit realizing broadband couple device of the present invention, described coupled apparatus uses a coupling electric capacity, institute
The relation stating coupling electric capacity and stiffness of coupling is:
Stiffness of coupling=(ω * C1/ (50+ ω * C1)), wherein ω is angular frequency, and C1 is coupling electric capacity
Value.
The integrated circuit realizing broadband couple device of the present invention, the size of described coupling electric capacity is 0.5pf～1pf.
The characteristic of the integrated circuit realizing broadband couple device of the present invention, described ground capacity and described coupled end
The relation of impedance is:
Zcoupling=1/ (ω * C2), wherein, ZcouplingFor the characteristic impedance of described coupled end, ω is angle
Frequency, C2 is the size of ground capacity.
The integrated circuit realizing broadband couple device of the present invention, the characteristic impedance of described coupled end is 1 ohm.
The integrated circuit realizing broadband couple device of the present invention, one first electricity that described first transmission branch is connected
Sense；And/or one second inductance of connecting in described second transmission branch；And/or in described second transmission branch
Connect one the 3rd inductance；And/or one the 4th inductance of connecting in described 3rd transmission branch.
Beneficial effect: owing to using above technical scheme, the present invention connects between coupled end and earth terminal
One ground capacity, ground capacity is as the load of coupled end, for forming mismatch to increase coupling in coupled end
Crossed belt width, it is achieved the purpose of broadband couple device.
Accompanying drawing explanation
Fig. 1 is the bonder schematic diagram of prior art；
Fig. 2 is the circuit theory diagrams of the present invention；
Fig. 3 is the frequency response curve of the present invention, includes frequency-insertion loss curve and frequency-stiffness of coupling respectively
Curve.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the present invention, and
It is not all, of embodiment.Based on the embodiment in the present invention, those of ordinary skill in the art are not making
The every other embodiment obtained on the premise of going out creative work, broadly falls into the scope of protection of the invention.
It should be noted that in the case of not conflicting, the embodiment in the present invention and the spy in embodiment
Levy and can be mutually combined.
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, but not as the present invention's
Limit.
With reference to Fig. 2, it is achieved the integrated circuit of broadband couple device, wherein, including,
First transmission branch, is connected to an input Input and one first and crosses between node x1；
Second transmission branch, is connected to first and crosses between node x1 and an outfan Output；
3rd transmission branch, is connected to coupled end Coupling and one second and crosses between node x2；
4th transmission branch, is connected to second and crosses between node x2 and terminal Termination；
First cross node x1 and second cross between node x2 connect coupled apparatus；
Ground capacity C2, ground capacity C2 is connected between coupled end Coupling and earth terminal GND
As the load of coupled end Coupling, for forming mismatch to increase strap in coupled end Coupling
Wide.
The present invention connects ground capacity C2, ground connection between coupled end Coupling and earth terminal GND
Electric capacity C2 is as the load of coupled end Coupling, for forming mismatch to increase in coupled end Coupling
Add coupling bandwidth, it is achieved the purpose of broadband couple device.Ground capacity C2 and the characteristic of coupled end Coupling
The relation of impedance is:
Zcoupling=1/ (ω * C2), wherein, ZcouplingFor the characteristic impedance of coupled end Coupling, ω
For angular frequency, C2 is the size of ground capacity.This characteristic impedance value is generally several ohm, preferably
It it is 1 ohm.
The integrated circuit realizing broadband couple device of the present invention, the first transmission branch, the second transmission branch,
Three transmission branches, the 4th transmission branch, coupled apparatus and electric capacity are integrated in by integrated passive devices technique
On same chip.
Along with the requirement of handheld device miniaturization and low cost is more and more higher, by multi-mode device and module collection
Requirement together is become day by day to increase, integrated passive devices (Integrated Passive Devices, IPD)
Technique to replace bulky discrete passive components, can have miniaturization with integrated multiple electric function
With the advantage improving systematic function.Integrated passive devices technique can use exposure, development, plated film, expansion
The thin film manufacture process such as scattered, etching make resistance, electric capacity and inductance element and the transmission line of connected with passive element
Cabling, by manufacturing on suitable carrier substrates material, can meet required element function and essence
Degree index, and can improving performance, reduce cost and reduce size.
The integrated circuit realizing broadband couple device of the present invention, the first transmission branch, the second transmission branch,
Three transmission branches, the 4th transmission branch, coupled apparatus and electric capacity are formed at same by integrated circuit technology
In dielectric base.
The integrated circuit realizing broadband couple device of the present invention, one first inductance that the first transmission branch is connected
L1；And/or second connect in transmission branch one second inductance L2；And/or second connect one in transmission branch
3rd inductance L3；And/or the 3rd connect in transmission branch one the 4th inductance L4.First inductance L1, second
Inductance L2, the 3rd inductance L3 and the 4th inductance L4 value the least so that insertion loss to the greatest extent may be used
Can be little.
The integrated circuit realizing broadband couple device of the present invention, coupled apparatus can use a coupling electric capacity C1,
Coupling electric capacity C1 with the relation of stiffness of coupling is:
Stiffness of coupling=(ω * C1/ (50+ ω * C1)), wherein ω is angular frequency, and C1 is coupling electric capacity
Value.The size of coupling electric capacity can be 0.5pf～1pf.
Frequency-insertion loss curve and the frequency-coupling of Fig. 3 is obtained by the circuit of Fig. 2 being carried out test
Intensity curve, it can be seen that the present invention (700MHz～2700MHz) coupling in broadband frequency band is strong
Degree difference is less than 4dB, it is achieved that the function of broadband couple device.
The foregoing is only preferred embodiment of the present invention, not thereby limit embodiments of the present invention and
Protection domain, to those skilled in the art, it should can appreciate that all utilization description of the invention
And the equivalent done by diagramatic content and the scheme obtained by obvious change, all should comprise
Within the scope of the present invention.
Claims (8)
1. realize the integrated circuit of broadband couple device, it is characterised in that include,
First transmission branch, is connected to an input and one first and crosses between node；
Second transmission branch, is connected to described first and crosses between node and an outfan；
3rd transmission branch, is connected to a coupled end and one second and crosses between node；
4th transmission branch, is connected to described second and crosses between node and an isolation end；
Described first cross node and described second cross between node connect coupled apparatus；
Connecting a ground capacity between described coupled end and earth terminal, described ground capacity is as described coupling
The load of end, for forming mismatch to increase coupling bandwidth in described coupled end.
The integrated circuit realizing broadband couple device the most according to claim 1, it is characterised in that described
First transmission branch, described second transmission branch, described 3rd transmission branch, described 4th transmission branch,
Described coupled apparatus and described electric capacity are integrated on same chip by integrated passive devices technique.
The integrated circuit realizing broadband couple device the most according to claim 1, it is characterised in that described
First transmission branch, described second transmission branch, described 3rd transmission branch, described 4th transmission branch,
Described coupled apparatus and described electric capacity are formed in same dielectric base by integrated circuit technology.
The integrated circuit realizing broadband couple device the most according to claim 1, it is characterised in that described
Coupled apparatus uses a coupling electric capacity, and described coupling electric capacity with the relation of stiffness of coupling is:
Stiffness of coupling=(ω * C1/ (50+ ω * C1)), wherein ω is angular frequency, and C1 is coupling electric capacity
Value.
The integrated circuit realizing broadband couple device the most according to claim 4, it is characterised in that described
The size of coupling electric capacity is 0.5pf～1pf.
The integrated circuit realizing broadband couple device the most according to claim 1, it is characterised in that described
Ground capacity with the relation of the characteristic impedance of described coupled end is:
Zcoupling=1/ (ω * C2), wherein, ZcouplingFor the characteristic impedance of described coupled end, ω is angle
Frequency, C2 is the size of ground capacity.
The integrated circuit realizing broadband couple device the most according to claim 6, it is characterised in that described
The characteristic impedance of coupled end is 1 ohm.
The integrated circuit realizing broadband couple device the most according to claim 1, it is characterised in that described
Series connection one first inductance in first transmission branch；And/or one second electricity of connecting in described second transmission branch
Sense；And/or one the 3rd inductance of connecting in described second transmission branch；And/or in described 3rd transmission branch
Connect one the 4th inductance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510375063.XA CN106330167A (en) | 2015-06-30 | 2015-06-30 | Integrated circuit for realizing broadband coupling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510375063.XA CN106330167A (en) | 2015-06-30 | 2015-06-30 | Integrated circuit for realizing broadband coupling |
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| Publication Number | Publication Date |
|---|---|
| CN106330167A true CN106330167A (en) | 2017-01-11 |
Family
ID=57723135
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510375063.XA Pending CN106330167A (en) | 2015-06-30 | 2015-06-30 | Integrated circuit for realizing broadband coupling |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113574735A (en) * | 2019-03-13 | 2021-10-29 | 阿维科斯公司 | Compact thin film surface mountable coupler with broadband performance |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7321651B2 (en) * | 2004-11-12 | 2008-01-22 | International Business Machines Corporation | High frequency circuit capable of error detection and correction of code patterns running at full speed |
| CN102185576A (en) * | 2011-02-23 | 2011-09-14 | 浙江大学 | Lumped parameter quadrature coupler |
| CN103346373A (en) * | 2013-06-06 | 2013-10-09 | 中国科学院上海微***与信息技术研究所 | Lumped-parameter broadband 180-degree coupler |
-
2015
- 2015-06-30 CN CN201510375063.XA patent/CN106330167A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7321651B2 (en) * | 2004-11-12 | 2008-01-22 | International Business Machines Corporation | High frequency circuit capable of error detection and correction of code patterns running at full speed |
| CN102185576A (en) * | 2011-02-23 | 2011-09-14 | 浙江大学 | Lumped parameter quadrature coupler |
| CN103346373A (en) * | 2013-06-06 | 2013-10-09 | 中国科学院上海微***与信息技术研究所 | Lumped-parameter broadband 180-degree coupler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113574735A (en) * | 2019-03-13 | 2021-10-29 | 阿维科斯公司 | Compact thin film surface mountable coupler with broadband performance |
| US11437695B2 (en) | 2019-03-13 | 2022-09-06 | KYOCERA AVX Components Corporation | Compact thin film surface mountable coupler having wide-band performance |
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Application publication date: 20170111 |