CN209169351U - A kind of radio frequency integrating device - Google Patents
A kind of radio frequency integrating device Download PDFInfo
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- CN209169351U CN209169351U CN201822089873.0U CN201822089873U CN209169351U CN 209169351 U CN209169351 U CN 209169351U CN 201822089873 U CN201822089873 U CN 201822089873U CN 209169351 U CN209169351 U CN 209169351U
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Abstract
The utility model discloses a kind of radio frequency integrating devices, the module includes top patches, middle dielectric layer and bottom metal earth plate, top patches include function sub-module and coupling module, function sub-module is the one-to-two Wilkinson power divider of metal micro-strip line, function sub-module includes input terminal, the first output end and second output terminal, and function sub-module is located at the middle part at the top of radio frequency integrating device；The two sides of function sub-module are arranged in parallel with and corresponding first coupling module of the first output end of function sub-module and the second coupling module corresponding with function sub-module second output terminal, first coupling module and the second coupling module are to couple bowed metal micro-strip line, the both ends of first coupling module are respectively arranged with coupled end and isolation end, the both ends of second coupling module are respectively arranged with coupled end and isolation end, realize the integrated of function sub-module and coupling module and coupling module and function sub-module are matched and reach optimum state.
Description
Technical field
The utility model belongs to radio frequency integration field, and in particular to a kind of radio frequency integrating device.
Background technique
With the fast development of wireless communication technique, radio-frequency module especially when powerful coupler and power splitter in movement
The fields such as communication, electronic countermeasure, microwave guidance are also to quickly grow, and radio frequency industry integral device level has obtained unprecedented
It is promoted, miniaturization, integrated, low-cost design demand are increasingly urgent to.
Coupler is that power is separated a part, it is named with the Insertion Loss size of coupled end, for example, 6dB coupler is just
It is coupling aperture decaying 6dB, 10dB coupler coupling aperture decaying 10dB；Power splitter is a kind of input signal energy will to be divided into all the way
The device of two-way or the equal or unequal energy of multiple-channel output.
Common powerful coupler and power splitter size are larger, and temporarily the corresponding product of small size does not substitute, because
And usually limited by its size and be poorly suitable for some small-sized front radio-frequency modules, meanwhile, independent coupler and power splitter
Combination there are the following problems: individual power splitter size includes mounting screw size, and individual coupler size also includes peace
Cartridge screw size, thus the combination of power splitter and coupler will increase the volume of radio-frequency module；In addition, coupler and power splitter
Output generally requires probe or connector, and for radio-frequency devices, probe or connector can have signal corruption；Again
Person, individual coupler and power splitter using probe perhaps connector connect when if probe or connector position move
It will cause coupler and power splitter matching be bad causes loss of signal, general individual coupler and power splitter build circuit meeting
There are the Insertion Loss of 0.5dB or so.
Utility model content
Aiming at the above defects or improvement requirements of the prior art, the utility model provides a kind of radio frequency integrating device, should
Radio frequency integrating device top patches include function sub-module and coupling module, by the function point that one-to-two Wilkinson power divider is arranged
Module and the coupling module for coupling bowed metal micro-strip line, realization function sub-module and coupling module integrate and make coupled mode
Block and the matching of function sub-module reach optimum state.
To achieve the above object, according to the one aspect of the utility model, a kind of radio frequency integrating device, the module are provided
Including top patches, middle dielectric layer and bottom metal earth plate,
Top patches include function sub-module and coupling module, and function sub-module is the one-to-two Wilkinson function of metal micro-strip line
Divide device, function sub-module includes input terminal, the first output end and second output terminal, and function sub-module is located at the top of radio frequency integrating device
Middle part, if the microstrip line interval where microstrip line and second output terminal where the first output end of function sub-module is provided with
Dry through-hole connects bottom metal earth plate；
The two sides that active sub-module is respectively set in the two sides of function sub-module are provided with and the first output end of function sub-module place
Parallel the first coupling module and second coupled mode parallel with the microstrip line where function sub-module second output terminal of microstrip line
Block, the first coupling module and the second coupling module are to couple bowed metal micro-strip line, and the both ends of the first coupling module are set respectively
It is equipped with coupled end and isolation end, the both ends of the second coupling module are respectively arranged with coupled end and isolation end, and top patches are close to
Two edge of one coupling module and the second coupling module are respectively arranged with several through-hole connection bottom metal earth plates.
The coupled end of the coupled end of first coupling module and the second coupling module as a further improvement of the utility model,
It is connected respectively first detector and second detector.
The coupled end of the first coupling module and first detector decline by first as a further improvement of the utility model,
Subtract series network connection, the coupled end and second detector of the second coupling module are connected in series by the second attenuation network.
The input terminal of function sub-module, the first output end and second output terminal as a further improvement of the utility model,
Characteristic impedance is 50 ohm, and the characteristic impedance of the interconnecting piece between the input terminal of function sub-module and two output ends is 70.7 Europe
Nurse.
The coupled end of first coupling module and the characteristic impedance of isolation end as a further improvement of the utility model, be
50 ohm, the coupled end of the second coupling module and the characteristic impedance of isolation end are 50 ohm.
The isolation end of the isolation end of first coupling module and the second coupling module as a further improvement of the utility model,
Bottom metal earth plate is electrically connected after one 50 Ohmic resistance of series connection respectively.
The degree of coupling of the first coupling module and the second coupling module is -20dB as a further improvement of the utility model,
~-50dB.
As a further improvement of the utility model, top patches and bottom metal earth plate be all made of copper foil compacting and
At.
The first output end of function sub-module and the Insertion Loss of second output terminal are small as a further improvement of the utility model,
In 4dB.
The working frequency of radio frequency integrating device is 2.1GHz-2.4GHz as a further improvement of the utility model,.
In general, have the above technical solutions conceived by the present invention are compared with the prior art, with following
Beneficial effect:
A kind of radio frequency integrating device of the utility model passes through the Wilkinson power divider of setting metal micro-strip line form
It is optimized with the coupling arcuate line coupled with Wilkinson power divider output end to realize the integrated of power splitter and coupler
The matching of coupling module and function sub-module reaches optimum state, meanwhile, coupling module and function sub-module reduce because of connection
And the loss of signal introduced.
A kind of radio frequency integrating device of the utility model, compared with most of couplers and power splitter build circuit, this is penetrated
Frequency integrating device size reduction 50% or so, is more advantageous to and is integrated into radio-frequency front-end system, reduce radio frequency component volume and
Weight.
A kind of radio frequency integrating device of the utility model can be coupled by the length and arch for adjusting arch coupling line
Spacing between line and Wilkinson microstrip line realizes the adjusting of the coupling module degree of coupling, thus improves the radio frequency integrating device and exist
A possibility that applying in different radio frequency front end system further enhances the practicability of radio frequency integrating device.
A kind of radio frequency integrating device of the utility model utilizes common pcb board dielectric material, production method and PCB
Printed board mode is identical, and production is simple, can conveniently be integrated into the PCB circuit board of radio-frequency front-end.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of radio frequency integrating device of the embodiment of technical solutions of the utility model；
In all the appended drawings, same appended drawing reference indicates identical technical characteristic, specifically: the input of 1- function sub-module
End, the first output end of 2- function sub-module, 3- function sub-module second output terminal, the first coupling module of 4- coupled end, 5- first coupling
Module isolation end, 6- the second coupling module coupled end and 7- the second coupling module isolation end.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As long as in addition, technical characteristic involved in the various embodiments of the present invention described below each other it
Between do not constitute conflict and can be combined with each other.The utility model is further described With reference to embodiment.
Fig. 1 is a kind of structural schematic diagram of radio frequency integrating device of the embodiment of technical solutions of the utility model.Such as Fig. 1 institute
Show, which includes top patches, middle dielectric layer and bottom metal earth plate.As a preferred implementation
The copper foil that example, top patches and bottom metal earth plate are all made of 0.035mm thickness is suppressed, and interlevel dielectric material uses
F4B-2, with a thickness of 0.508mm, dielectric constant 2.65.
Top patches include function sub-module and coupling module, and function sub-module and coupling module are microstrip line, function sub-module
For the one-to-two Wilkinson power divider comprising input terminal 1, the first output end 2 and second output terminal 3, function sub-module is located at radio frequency
The middle part at the top of integrating device, the microstrip line where the first output end of function sub-module and the microstrip line where second output terminal
Interval is provided with several through-hole connection bottom metal earth plates；The two sides of function sub-module are respectively arranged with and function sub-module first
The first parallel coupling module of microstrip line where output end and parallel with the microstrip line where function sub-module second output terminal
Second coupling module, top patches are respectively arranged with several logical close to two edge of the first coupling module and the second coupling module
Hole connects bottom metal earth plate, and the first coupling module and the second coupling module are to couple arcuate line, and the two of the first coupling module
End is respectively arranged with coupled end 4 and isolation end 5, and the both ends of the second coupling module are respectively arranged with coupled end 6 and isolation end 7, the
The coupled end 4 of one coupling module and the coupled end 6 of the second coupling module are separately connected wave detector and carry out detection, the first coupling module
Coupled end 5 and the second coupling module coupled end 7 respectively by series connection one 50 Ohmic resistance ground connection, the first coupling module and
The length of the arch coupling line of second coupling module is longer, and the corresponding degree of coupling is higher；Meanwhile first coupling module and second
The spacing of coupling module and function sub-module is smaller, and the corresponding degree of coupling is higher, it should be noted that the first coupling module,
The output port of two coupling modules and function sub-module cannot be shorted.The input terminal of function sub-module, the first output end and the second output
The characteristic impedance at end is 50 ohm, and the characteristic impedance of the interconnecting piece between the input terminal of function sub-module and two output ends is
70.7 ohm, the characteristic impedance of the coupled end and isolation end of the first coupling module and the second coupling module is 50 ohm.Foundation
The input terminal of function sub-module is 50 ohm, the characteristic impedance of the first output end and second output terminal is that 50 ohm and function divide mould
The characteristic impedance of interconnecting piece between the input terminal of block and two output ends, which is 70.7 ohm, can calculate Wilkinson function point
The dielectric constant of device microstrip line applies copper thickness and dielectric thickness, the coupled end of the first coupling module and the second coupling module and every
Characteristic impedance from end, which is 50 ohm, can calculate the dielectric constant of the first coupling module and the second coupling module, apply copper thickness
Degree and dielectric thickness.
As preferred embodiment, the coupled end of the first coupling module and the second coupling module is connected with attenuation network, can
The coupling value of radio frequency integrating device is adjusted with the pad value by adjusting attenuation network.
The top patches of radio frequency integrating device include two parts: a part is the Wilkinson micro-strip function branch halved
Divide, it can be achieved that function divides function；A part is that arch microstrip line realizes coupling function.The integration module have function point function with couple
Function, can working frequency and work required for more convenient adjusting if changing the micro-strip line width of Wilkinson function branch point, wire length
Make bandwidth；Micro-strip line width, wire length are related to working frequency, if changing the wire length of arch microstrip line, dividing with Wilkinson function branch
Distance, the degree of coupling of working frequency range required for can effectively adjusting, 20dB~50dB may be implemented in degree of coupling value range.It utilizes
Electromagnetic simulation software ADS carries out simulation calculation to the function point and the integration module of coupling function, for the correctness of verifying design, imitates
Genuine radio frequency integrating device is symmetrical about horizontal direction, wherein S11 indicates that the input terminal 1 of radio frequency integrating device function sub-module returns
Wave loss；2 return loss of the first output end of S22 expression radio frequency integrating device function sub-module；S21 indicates radio frequency integrating device function
The input terminal 1 of sub-module inputs, the Insertion Loss of the first output end 2 output of radio frequency integrating device function sub-module；S41 indicates radio frequency collection
It is inputted at the input terminal 1 of device function sub-module, the Insertion Loss that the coupled end 4 of the first coupling module exports, that is, the first coupled mode
The degree of coupling of block, by simulation result it is found that radio frequency integrating device is when working frequency is 2.2GHz~2.4GHz, frequency integration module
2 return loss of the first output end of the 1 return loss S11 of input terminal of function sub-module and radio frequency integrating device function sub-module is-
40dB~-41Db；The input terminal 1 of radio frequency integrating device function sub-module inputs, the first output of radio frequency integrating device function sub-module
The Insertion Loss S21 of 2 output of end is -3.5dB or so；The degree of coupling S41 of first coupling module is -37dB~-38dB.
The size of entire radio frequency integrating device is 60*52*0.578mm3, and radio frequency integrating device working frequency is 2.1GHz-
2.4GHz, relative bandwidth 13.3%, inband flatness are less than 0.7dB, and insertion loss is less than 4dB (containing theoretical apportioning cost), defeated
Entering output port is 50 ohm.Realize that function divides function compared with the module of coupling function with most of, the radio frequency integrating device
Size reduction 50% or so, therefore, radio frequency integrating device have structure simple, small in size, with the features such as interior flat, Insertion Loss is small,
It is more advantageous to and is integrated into radio-frequency front-end system, reduce the volume and weight of radio frequency component, which has more
Wide application prospect.
In conclusion the radio frequency integrating device of the utility model can be used in certain transmitting radio-frequency front-end systems,
Radio frequency pcb board may be integrally incorporated to a part of circuit progress processing and fabricating together as PCB, not only save cost, while
Eliminate because independent coupler and power splitter build circuit size it is excessive caused by the puzzlement that increases of cavity size and weight.Together
When, the operating power and the degree of coupling of the radio frequency integrating device have adjustable characteristic, also improve it in different radio frequency front end system
A possibility that middle application, further enhances the practicability of radio frequency integrating device.
As it will be easily appreciated by one skilled in the art that the above is only the preferred embodiment of the utility model only, not
To limit the utility model, any modification made within the spirit and principle of the present invention, equivalent replacement and change
Into etc., it should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of radio frequency integrating device, the radio frequency integrating device includes top patches, middle dielectric layer and bottom metal ground connection
Plate, which is characterized in that
The top patches include function sub-module and coupling module, and the function sub-module is the one-to-two Weir gold of metal micro-strip line
Gloomy power splitter, the function sub-module include input terminal, the first output end and second output terminal, and the function sub-module is located at radio frequency collection
At the middle part at the top of device, the microstrip line where the first output end of the function sub-module and the micro-strip where second output terminal
Line interval is provided with several through-hole connection bottom metal earth plates；
The two sides of the function sub-module are respectively arranged with first coupling parallel with the microstrip line where the first output end of function sub-module
Mold block and second coupling module parallel with the microstrip line where function sub-module second output terminal, first coupling module with
Second coupling module is to couple bowed metal micro-strip line, the both ends of first coupling module be respectively arranged with coupled end and every
From end, the both ends of second coupling module are respectively arranged with coupled end and isolation end, and the top patches are respectively close to first
The edge of coupling module and the second coupling module is respectively arranged with several through-hole connection bottom metal earth plates.
2. a kind of radio frequency integrating device according to claim 1, which is characterized in that the coupled end of first coupling module
First detector and second detector are connected respectively with the coupled end of the second coupling module.
3. a kind of radio frequency integrating device according to claim 2, which is characterized in that the coupled end of first coupling module
It is connected in series with first detector by the first attenuation network, the coupled end and second detector of second coupling module pass through
Second attenuation network is connected in series.
4. a kind of radio frequency integrating device according to claim 1, which is characterized in that the input terminal of the function sub-module,
The characteristic impedance of one output end and second output terminal is 50 ohm, between the input terminal of the function sub-module and two output ends
Interconnecting piece characteristic impedance be 70.7 ohm.
5. a kind of radio frequency integrating device according to claim 1, which is characterized in that the coupled end of first coupling module
Characteristic impedance with isolation end is 50 ohm, and the coupled end of the second coupling module and the characteristic impedance of isolation end are 50 Europe
Nurse.
6. a kind of radio frequency integrating device according to claim 1, which is characterized in that the isolation end of first coupling module
It connects respectively with the isolation end of the second coupling module and is electrically connected bottom metal earth plate after 50 Ohmic resistances.
7. a kind of radio frequency integrating device according to claim 1, which is characterized in that first coupling module and the second coupling
The degree of coupling for molding block is -20dB~-50dB.
8. a kind of radio frequency integrating device according to claim 1, which is characterized in that the top patches and bottom metal connect
Floor is all made of copper foil and suppresses.
9. a kind of radio frequency integrating device according to claim 1, which is characterized in that the first output end of the function sub-module
4dB is respectively less than with the Insertion Loss of second output terminal.
10. a kind of radio frequency integrating device according to claim 1 to 9, which is characterized in that the radio frequency is integrated
The working frequency of device is 2.1GHz-2.4GHz.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822089873.0U CN209169351U (en) | 2018-12-12 | 2018-12-12 | A kind of radio frequency integrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822089873.0U CN209169351U (en) | 2018-12-12 | 2018-12-12 | A kind of radio frequency integrating device |
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| CN209169351U true CN209169351U (en) | 2019-07-26 |
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ID=67343486
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110780112A (en) * | 2019-10-25 | 2020-02-11 | 武汉滨湖电子有限责任公司 | High flatness power detection device |
-
2018
- 2018-12-12 CN CN201822089873.0U patent/CN209169351U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110780112A (en) * | 2019-10-25 | 2020-02-11 | 武汉滨湖电子有限责任公司 | High flatness power detection device |
| CN110780112B (en) * | 2019-10-25 | 2022-06-28 | 武汉滨湖电子有限责任公司 | High flatness power detection device |
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