CN108695584A - Small sized wide-band low-temperature co-fired ceramics Wilkinson power divider - Google Patents
Small sized wide-band low-temperature co-fired ceramics Wilkinson power divider Download PDFInfo
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- CN108695584A CN108695584A CN201810245548.0A CN201810245548A CN108695584A CN 108695584 A CN108695584 A CN 108695584A CN 201810245548 A CN201810245548 A CN 201810245548A CN 108695584 A CN108695584 A CN 108695584A
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- China
- Prior art keywords
- power divider
- ltcc substrate
- wilkinson power
- temperature
- small sized
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
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- Compositions Of Oxide Ceramics (AREA)
Abstract
A kind of small sized wide-band low-temperature co-fired ceramics Wilkinson power divider, including ltcc substrate and seven transmitting stages;Ltcc substrate is divided into 13 layers in vertical direction;Seven transmitting stages are located on the odd-level of the ltcc substrate, and stack setting in vertical direction;It is isolated by the even level between the adjacent odd layer between the transmitting stage being arranged on the adjacent odd layer of the ltcc substrate, and the corresponding vertical vias with the road clearance is provided in the even level, it is connected by the corresponding vertical vias between the transmitting stage being arranged on the adjacent odd layer of the ltcc substrate.Above-mentioned scheme can reduce the occupied circuit area of Wilkinson power divider, reduce the size of Wilkinson power divider.
Description
Technical field
The present invention relates to electrical equipment technical fields, more particularly to a kind of small sized wide-band low-temperature co-fired ceramics Wilkinson
Power divider.
Background technology
Power divider is microwave receiving, indispensable component in radio frequency and frequency synthesizer system, feeds, puts down in antenna
It is widely used in balanced amplifier, frequency mixer and phase shifter general.
Wilkinson power divider is invented by Wilkinson, have less than 20% narrowband relative bandwidth, after by
Cohn completes the broadband character description of cascade multi-section structure.
However, Wilkinson power divider in the prior art has that occupancy circuit area is larger.
Invention content
Present invention solves the technical problem that being how to reduce the occupied circuit area of Wilkinson power divider, reduce
The size of Wilkinson power divider.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of small sized wide-band low-temperature co-fired ceramics Wilkinson work(
Rate distributor, including ltcc substrate and seven transmitting stages;
Ltcc substrate is divided into 13 layers in vertical direction;
Seven transmitting stages are located on the odd-level of the ltcc substrate, and stack setting in vertical direction;
Pass through the idol between the adjacent odd layer between the transmitting stage being arranged on the adjacent odd layer of the ltcc substrate
Several layers are isolated, and the corresponding vertical vias with the road clearance is provided in the even level, the ltcc substrate
It is connected by the corresponding vertical vias between the transmitting stage being arranged on adjacent odd layer.
Optionally, vertical vias between the transmitting stage being arranged on the adjacent odd layer of the connection ltcc substrate
Transition radius and road clearance all same.
Optionally, the transition radius of the vertical vias and road clearance are respectively 0.08mm and 0.22mm.
Optionally, the thin film resistor of the output port for the transmitting stage to be isolated is integrated in the ltcc substrate
In.
Optionally, the thin film resistor is NiCr thin film resistors.
Optionally, material used by the ltcc substrate is Ferro-A6, and dielectric constant 5.9, loss angle tangent is
0.002。
Optionally, each layer of thickness of the ltcc substrate is 0.1mm.
Optionally, the size of the small sized wide-band low-temperature co-fired ceramics Wilkinson power divider is 4 mm * of 4mm *
1.33 mm。
Compared with prior art, the technical solution of the embodiment of the present invention has the advantages that:
Above-mentioned scheme, using 13 layers of ltcc substrate structure, and seven transmitting stages are located at the strange of the ltcc substrate
On several layers, and setting is stacked in vertical direction;Pass through between the transmitting stage being arranged on the adjacent odd layer of the ltcc substrate
Even level between the adjacent odd layer is isolated, and is provided in the even level corresponding with the road clearance
Vertical vias, connected by the corresponding vertical vias between the transmitting stage being arranged on the adjacent odd layer of the ltcc substrate
Connect, compared with using the Wilkinson power divider of plane cascade structure, can the occupied area of reduction circuit significantly, subtract
The size of few Wilkinson power divider.
Description of the drawings
Fig. 1 is the structural schematic diagram of the Wilkinson power divider of plane cascade structure a kind of in the prior art;
Fig. 2 is a kind of structural representation of small sized wide-band low-temperature co-fired ceramics Wilkinson power divider of the embodiment of the present invention
Figure;
Fig. 3 is that a kind of stereochemical structure of small sized wide-band low-temperature co-fired ceramics Wilkinson power divider of the embodiment of the present invention is shown
It is intended to;
Fig. 4 to Fig. 7 is the S ginsengs of the small sized wide-band low-temperature co-fired ceramics Wilkinson power divider in the embodiment of the present invention respectively
The measurement result of several emulation and test result and the S parameter of the Wilkinson power divider of traditional plane cascade structure it
Between comparison schematic diagram.
Specific implementation mode
Refer to Fig. 1, a kind of Wilkinson power divider in the prior art, seven transmitting stages, i.e., the 1st grade to
It is attached using plane cascade structure between 7 grades, there is a problem that circuit footprint is larger.
To solve the problem above-mentioned, the technical solution in offer of the embodiment of the present invention, using 13 layers of ltcc substrate knot
Structure, seven transmitting stages are located on the odd-level of the ltcc substrate, and stack setting, the LTCC bases in vertical direction
It is isolated by the even level between the adjacent odd layer between the transmitting stage being arranged on the adjacent odd layer of plate, and
It is provided with the corresponding vertical vias with the road clearance in the even level, is arranged on the adjacent odd layer of the ltcc substrate
Transmitting stage between connected by the corresponding vertical vias, can the occupied area of reduction circuit significantly, reduce Weir
The size of the gloomy power divider of gold.
It is understandable to enable above-mentioned purpose, feature and the advantageous effect of the present invention to become apparent, below in conjunction with the accompanying drawings to this
The specific embodiment of invention is described in detail.
Fig. 2 and Fig. 3 is a kind of small sized wide-band low-temperature co-fired ceramics Wilkinson power divider of the embodiment of the present invention
Structural schematic diagram.Referring to figs. 2 and 3, the embodiment of the present invention provides a kind of small sized wide-band low-temperature co-fired ceramics Wilkinson power
Distributor, including ltcc substrate 201 and seven transmitting stages 202~208.
Wherein, ltcc substrate 201 is divided into 13 layers in vertical direction, i.e., first layer is to the 13rd layer.It is being embodied
In, each layer of the ltcc substrate 201, i.e. the thickness of first layer to the 13rd layer can be identical.In one embodiment of the invention
In, material used by the ltcc substrate is Ferro-A6, dielectric constant 5.9, loss angle tangent 0.002, first layer
Thickness to the 13rd layer is 0.1mm.
Seven transmitting stages 202~208 are located on the odd-level of the ltcc substrate 201, and in vertical direction
Upper stacking setting.Specifically, transmitting stage 202 is located at the first layer of ltcc substrate 201, transmitting stage 203 is located at ltcc substrate 201
Third layer, transmitting stage 204 is located at the layer 5 of ltcc substrate 201, and transmitting stage 205 is located at the layer 7 of ltcc substrate 201, passes
Defeated grade 206 is located at the 9th layer of ltcc substrate 201, and transmitting stage 207 is located at the eleventh floor of ltcc substrate 201, transmitting stage 208
In the 13rd layer of ltcc substrate 201.
Between the transmitting stage being arranged on the adjacent odd layer of the ltcc substrate 201 by be located at the adjacent odd layer it
Between even level be isolated, be provided in the adjacent odd layer even level of ltcc substrate 201 it is corresponding have liftoff
The vertical vias of gap, by corresponding described vertical between the transmitting stage being arranged on the adjacent odd layer of the ltcc substrate 201
Via connects.Specifically, the transmitting stage 202 and 203 being arranged in the first layer of the ltcc substrate 201 and third layer uses second
Layer is isolated, and the transmitting stage 203 and 204 that is arranged in third layer and layer 5 is isolated using the 4th layer, layer 5 and the
Seven layers of upper transmitting stage 204 and 205 being arranged are isolated using layer 6, layer 7 and the 9th layer of upper transmitting stage 205 being arranged
It is isolated using the 8th layer with 206, the transmitting stage 206 and 207 being arranged on the 9th layer and eleventh floor is carried out using the tenth layer
Isolation, eleventh floor and the 13rd layer of upper transmitting stage 207 and 208 being arranged are isolated using the tenth layer.Wherein, the LTCC
Be respectively provided in the second layer of substrate 201, the 4th layer, layer 6, the 8th layer and the tenth layer the vertical through hole 11 being arranged in pairs,
12,13,14,15 and 16, wherein vertical through hole 11 is transmitted for connecting transmitting stage 202 and 203, vertical through hole 12 for connecting
Grade 203 and 204, vertical through hole 13 are used to connect transmitting stage 205 and 206 for connecting transmitting stage 204 and 205, vertical through hole 14,
Vertical through hole 15 is for connecting transmitting stage 206 and 207, and vertical through hole 16 is for connecting transmitting stage 207 and 208.In addition, positioned at the
13 layers of transmitting stage 206 is also connect with positioned at the port of first layer 2 and port 3 by vertical through hole 17,18 respectively respectively.
In specific implementation, the output for the transmitting stage 202~208 being arranged on the adjacent odd layer of the ltcc substrate 201
End is respectively arranged with corresponding thin film resistor R1~R7.Thin film resistor R1~the R7 is integrated in the ltcc substrate
In 201.In an embodiment of the present invention, thin film resistor R1~R7 is NiCr thin film resistors.
In specific implementation, it is provided in the adjacent odd layer even level of ltcc substrate 201 corresponding with liftoff
The transition radius r and road clearance R all same of the vertical vias in gap.In an embodiment of the present invention, the vertical vias
Transition radius r and road clearance R is respectively 0.08mm and 0.22mm.
In specific implementation, a kind of small sized wide-band low-temperature co-fired ceramics Wilkinson power distribution in the embodiment of the present invention
Impedance-zinc ring impedance and the radon membrane impedance of the transmission line width and film isolation resistance of device, refer to shown in table 1.
Table 1
In addition, can be seen that the scattering parameter measured respectively from Fig. 4 to Fig. 7(S parameter, S-parameter), that is, export echo
Parameter S11, insertion loss parameter S21, output return wave loss parameter S22 and interport isolation parameter S23 is lost than 2 GHz to 38
- 15dB, -4.3dB, the dB of -16dB and -17 of GHz will be got well, and the low temperature co-fired pottery of a kind of small sized wide-band in the embodiment of the present invention
The insertion loss of porcelain Wilkinson power divider than equivalent plane insertion loss higher, be by vertical vias transition not
Caused by continuity and the opposite direction of each adjacent transmitting stage, Fig. 5 is specifically referred to.It should be noted that Fig. 4 to Fig. 7
In novel power divider refer to a kind of small sized wide-band low-temperature co-fired ceramics Wilkinson power divider in the embodiment of the present invention,
Conventional planar power splitter refers to the Wilkinson power divider of plane cascade structure shown in FIG. 1.
The test fixture designed using Agilent N5230C Network Analyzers and Ericsson is in the embodiment of the present invention
A kind of small sized wide-band low-temperature co-fired ceramics Wilkinson power divider measures, and size is only 4mm(It is long)*4mm(It is wide)*
1.33mm(It is thick), and equivalent plane size is 26(It is long)×4(It is wide), than the ruler of the Wilson power divider of plane cascade structure
It is very little to reduce 84.6%.
Using the said program in the embodiment of the present invention, using 13 layers of ltcc substrate structure, and seven transmit fractions
Wei Yu not be on the odd-level of the ltcc substrate, and setting is stacked in vertical direction;The adjacent odd layer of the ltcc substrate
It is isolated by the even level between the adjacent odd layer between the transmitting stage of upper setting, and is set in the even level
It is equipped with the corresponding vertical vias with the road clearance, is led between the transmitting stage being arranged on the adjacent odd layer of the ltcc substrate
Crossing the corresponding vertical vias connection can compared with the Wilkinson power divider for using planar structure between transmitting stage
With the occupied area of reduction circuit significantly, the size of Wilkinson power divider is reduced.
Although present disclosure is as above, present invention is not limited to this.Any those skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (8)
1. a kind of small sized wide-band low-temperature co-fired ceramics Wilkinson power divider, which is characterized in that including ltcc substrate and seven
A transmitting stage;
Ltcc substrate is divided into 13 layers in vertical direction;
Seven transmitting stages are located on the odd-level of the ltcc substrate, and stack setting in vertical direction;
Pass through the idol between the adjacent odd layer between the transmitting stage being arranged on the adjacent odd layer of the ltcc substrate
Several layers are isolated, and the corresponding vertical vias with the road clearance is provided in the even level, the ltcc substrate
It is connected by the corresponding vertical vias between the transmitting stage being arranged on adjacent odd layer.
2. small sized wide-band low-temperature co-fired ceramics Wilkinson power divider according to claim 1, which is characterized in that institute
State the vertical vias between the transmitting stage being arranged on the adjacent odd layer for connecting the ltcc substrate transition radius and it is liftoff between
Gap all same.
3. small sized wide-band low-temperature co-fired ceramics Wilkinson power divider according to claim 2, which is characterized in that institute
It is respectively 0.08mm and 0.22mm to state the transition radius of vertical vias and road clearance.
4. small sized wide-band low-temperature co-fired ceramics Wilkinson power divider according to claim 1, which is characterized in that use
It is integrated in the ltcc substrate in the thin film resistor for the output port that the transmitting stage is isolated.
5. small sized wide-band low-temperature co-fired ceramics Wilkinson power divider according to claim 2, which is characterized in that institute
It is NiCr thin film resistors to state thin film resistor.
6. small sized wide-band low-temperature co-fired ceramics Wilkinson power divider according to claim 1, which is characterized in that institute
It is Ferro-A6, dielectric constant 5.9, loss angle tangent 0.002 to state material used by ltcc substrate.
7. small sized wide-band low-temperature co-fired ceramics Wilkinson power divider according to claim 1, which is characterized in that institute
Each layer of thickness for stating ltcc substrate is 0.1mm.
8. small sized wide-band low-temperature co-fired ceramics Wilkinson power divider according to claim 1, which is characterized in that institute
The size for stating small sized wide-band low-temperature co-fired ceramics Wilkinson power divider is 4 mm * of 4mm *, 1.33 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810245548.0A CN108695584A (en) | 2018-03-23 | 2018-03-23 | Small sized wide-band low-temperature co-fired ceramics Wilkinson power divider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810245548.0A CN108695584A (en) | 2018-03-23 | 2018-03-23 | Small sized wide-band low-temperature co-fired ceramics Wilkinson power divider |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108695584A true CN108695584A (en) | 2018-10-23 |
Family
ID=63844583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810245548.0A Pending CN108695584A (en) | 2018-03-23 | 2018-03-23 | Small sized wide-band low-temperature co-fired ceramics Wilkinson power divider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108695584A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104756313A (en) * | 2012-10-25 | 2015-07-01 | 瑞典爱立信有限公司 | Power divider and method of fabricating the same |
| CN105006622A (en) * | 2015-07-21 | 2015-10-28 | 成都中微电微波技术有限公司 | Microwave power divider |
-
2018
- 2018-03-23 CN CN201810245548.0A patent/CN108695584A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104756313A (en) * | 2012-10-25 | 2015-07-01 | 瑞典爱立信有限公司 | Power divider and method of fabricating the same |
| CN105006622A (en) * | 2015-07-21 | 2015-10-28 | 成都中微电微波技术有限公司 | Microwave power divider |
Non-Patent Citations (1)
| Title |
|---|
| 周波等: "基于主动空间映射算法的宽带LTCC功分器", 《2011年全国微波毫米波会议》 * |
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Application publication date: 20181023 |
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