CN110233322A - The one-to-many port Impedance of ultra wideband transmissions line converts power splitter - Google Patents
The one-to-many port Impedance of ultra wideband transmissions line converts power splitter Download PDFInfo
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- CN110233322A CN110233322A CN201910576292.6A CN201910576292A CN110233322A CN 110233322 A CN110233322 A CN 110233322A CN 201910576292 A CN201910576292 A CN 201910576292A CN 110233322 A CN110233322 A CN 110233322A
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- port
- impedance
- transmission line
- branch
- line structure
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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
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- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Abstract
The invention discloses a kind of one-to-many port Impedances of ultra wideband transmissions line to convert power splitter, including transmission line structure, feed port and function divide port；The transmission line structure includes single spur track and multiple branch circuit；One end of the single spur track connects feed port；The other end of the single spur track is unfolded to form parallel branch progress impedance transformation by impedance transformer stepwise, and each parallel branch is multiple branch circuit；Each branch of the last single order is connected with function point port；The feed port is located at transmission line structure single spur track side, and is connected with single spur track；The function divides port to be located at transmission line structure multiple branch circuit side, and each function divides port and each branch of the last single order of the transmission line structure to be connected.The present invention has many advantages, such as that power distribution and impedance convert the matching properties, it can be achieved that ultra wide band simultaneously, has broadband, low reflection, small in size, easy processing.
Description
Technical field
The present invention relates to a kind of power splitters, and in particular to a kind of one-to-many port Impedance transformation function point of ultra wideband transmissions line
Device.
Background technique
The energy of input signal all the way can be divided into the device of the equal or unequal energy of multiple-channel output by power divider.
Conversion between the achievable different impedances of impedance transformer, to obtain matched well.
Existing impedance transformer is all single port input single port output, there is certain limitation.
Summary of the invention
Goal of the invention: in order to realize two kinds of functions of power splitter and impedance transformer simultaneously, single port input, multiport are realized
Space and cost are saved in output, and the invention proposes a kind of one-to-many port Impedances of ultra wideband transmissions line to convert power splitter.
Technical solution: the one-to-many port Impedance transformation power splitter of ultra wideband transmissions line of the invention, including transmission line structure,
Feed port and function divide port；The transmission line structure includes single spur track and multiple branch circuit；One end of the single spur track connects feed
Port；The other end of the single spur track is unfolded to be formed stepwise parallel branch by impedance transformer and carries out impedance transformation, it is described it is each simultaneously
Connection branch is multiple branch circuit；Each branch of the last single order is connected with function point port；The feed port is located at transmission knot
Structure single spur track side, and be connected with single spur track；The function divides port to be located at transmission line structure multiple branch circuit side, and each function divides port
It is connected with each branch of the last single order of the transmission line structure.
Preferably, the transmission line structure is one of microstrip line, parallel wire or coaxial line.
Preferably, the impedance transformer is multistage quarter wavelength impedance transducer.
Preferably, the characteristic impedance of every rank transmission line can be double using bulk according to order and actually, expansion
For parallel-connection structure.
Preferably, every rank expands into two.
Preferably, each function divides port characteristic impedance having the same.
The utility model has the advantages that compared with prior art, the present invention can achieve the following beneficial effects: 1, the present invention passes through feed end
Mouth and function point port are separately connected the parallel-connection structure that impedance transformer is launched into, and not only realize power distribution but also have carried out impedance change
It changes, while realizing single port input, multiport output.2, by optimization planar microstrip cable architecture, low reflection is realized.3, multiterminal
The impedance transformation microstrip power divider of mouth also has the advantages that light-weight, small in size, easy processing.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of upper surface of the invention；
Fig. 2 is the enlarged partial isometric view of planar microstrip cable architecture of the invention；
Fig. 3 is the structural schematic diagram of lower surface of the invention；
Fig. 4 is overlooking structure diagram of the invention；
Fig. 5 is left view structural representation of the invention；
Fig. 6 is the desired transmission cable architecture of a pair of of Single port；
Fig. 7 is the principle of the present invention figure partial structural diagram；
Fig. 8 is the reflection characteristic and transmission characteristic calculated using HFSS software.
Specific embodiment
Present invention is further described in detail with specific embodiment with reference to the accompanying drawings of the specification.
As shown in Figs. 1-5, in which: 1 medium substrate, 2 transmission line structures, 3 metal floors, 4 feed ports, 5 function divide port.
Present embodiment discloses a kind of one-to-many port Impedances of ultra wideband transmissions line to convert power splitter, including medium substrate 1, is located at
Transmission line structure 2, the metal floor 3 of its upper and lower surfaces, the medium substrate 1 are rectangle structure and have mutually flat
Capable upper and lower surfaces；Metal floor 3 is rectangle structure, is covered with entire 1 lower surface of medium substrate.The biography of the present embodiment
Defeated cable architecture 2 is planar microstrip cable architecture, is divided into two by the every rank of single branch, totally 5 rank, is divided into 32 branches.Plane is micro-
Strip line structure is mainly made of the microstrip line of the strip of different in width, and corner is connected by arc-shaped micro-strip line connector, at branch
It is connected by T shaped microstrip wire terminal.Microstrip line construction is that the one-to-many port Impedance of the ultra wideband transmissions line converts the one of power splitter
Kind realizes structure, can also be realized by parallel wire, coaxial line etc..
Feed port 4 is located at 1 side of medium substrate, for the single port for connecting transmission line structure 2 and metal floor 3.Such as Fig. 3
With orientation shown in Fig. 6, the feed port 4 is located at the rightmost side.The characteristic impedance of feed port 4 in the present embodiment is 50Ohm.
Function divides port 5 totally 32, is located at 1 side of medium substrate, connects 32 branch ends and the metal of transmission line structure 2
Floor 3.Orientation as shown in Figure 3, the function divide port 5 to be located at the leftmost side, orientation as shown in Figure 5, and the function divides port 5 to be located at and is situated between
1 side of matter substrate is uniformly distributed.In the present embodiment, each function divides the characteristic impedance of port 5 to be 147.2Ohm.
The present embodiment uses quarter wavelength impedance transducer for realizing that the impedance of 50 Ω -4.6 Ω converts,
Suitable impedance transformer can be chosen when practical application as needed.Realize the desired transmission cable architecture of a pair of of Single port,
The quarter wavelength impedance transducer of 50 Ω -4.6 Ω is determined first.The present embodiment is divided into the output of 32 multiports, practical application
As long as when guarantee that port number is 2 n times side.It is designed by business electromagnetic computing software ADS, it is low to meet in 1-18GHz
In the reflection coefficient of -10dB, 16 sections of Ideal Transmission Lines are needed, as shown in fig. 7, the impedance value of every section of transmission line is as shown in table 1.
The expansion situation of every order ideal transmission line and as shown in table 2 to the impedance value after expansion.
The length and width that microstrip line construction corresponding to Ideal Transmission Line can be calculated according to table 2, can convert Ideal Transmission Line
It for true microstrip line construction, and is attached with the micro-strips connecting element such as T connector, turning, generates true microstrip line schematic diagram,
Partial structurtes are as shown in Figure 8.
According to schematic diagram generate domain, structure as of the invention, as shown in Figs. 1-5.
As shown in fig. 6, in the present embodiment, medium substrate 1 according to dielectric constant 2.2, with a thickness of 0.5 millimeter of design when, benefit
The impedance of the multiport calculated with HFSS software converts the reflection characteristic and transmission characteristic of microstrip power divider, and S (1,1) can be in 1-
Reach in the money frequency band of 18GHz and concentrates on -15dB or so lower than -10dB, S (2,1)-S (33,1).
By above-mentioned test it is found that the present invention has the function of while carrying out power distribution and impedance transformation, realize simultaneously
Single port input, multiport output are functional.
1 16 order ideal line characteristic impedance value of table
Characteristic impedance value after circuitry number and expansion is unfolded in 2 16 order ideal transmission line of table
Claims (5)
1. a kind of one-to-many port Impedance of ultra wideband transmissions line converts power splitter, which is characterized in that including transmission line structure (2),
Feed port (4) port He Gongfen (5)；
The transmission line structure (2) includes single spur track and multiple branch circuit；One end of the single spur track connects feed port (4)；It is described
The other end of single spur track is unfolded to form parallel branch progress impedance transformation by impedance transformer stepwise, and each parallel branch is more
Branch；Each branch of the last single order is connected with function point port (5)；
The feed port (4) is located at transmission line structure (2) single spur track side, and is connected with single spur track；
The function divides port (5) to be located at transmission line structure (2) multiple branch circuit side, and each function divides port (5) and the transmission knot
Each branch of the last single order of structure (2) is connected.
2. the one-to-many port Impedance of ultra wideband transmissions line according to claim 1 converts power splitter, which is characterized in that described
Transmission line structure (2) is one of microstrip line, parallel wire or coaxial line.
3. the one-to-many port Impedance of ultra wideband transmissions line according to claim 1 converts power splitter, which is characterized in that described
Impedance transformer is multistage quarter wavelength impedance transducer.
4. the one-to-many port Impedance of ultra wideband transmissions line according to claim 1 converts power splitter, which is characterized in that described
The characteristic impedance of every rank transmission line can be double using bulk according to order and actually, expands into parallel-connection structure.
5. the one-to-many port Impedance of ultra wideband transmissions line according to claim 1 converts power splitter, which is characterized in that described
Each function divides port (5) characteristic impedance having the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910576292.6A CN110233322A (en) | 2019-06-28 | 2019-06-28 | The one-to-many port Impedance of ultra wideband transmissions line converts power splitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910576292.6A CN110233322A (en) | 2019-06-28 | 2019-06-28 | The one-to-many port Impedance of ultra wideband transmissions line converts power splitter |
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| Publication Number | Publication Date |
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| CN110233322A true CN110233322A (en) | 2019-09-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910576292.6A Pending CN110233322A (en) | 2019-06-28 | 2019-06-28 | The one-to-many port Impedance of ultra wideband transmissions line converts power splitter |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112510336A (en) * | 2020-11-27 | 2021-03-16 | 成都天锐星通科技有限公司 | Broadband power divider and electronic equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001028507A (en) * | 1999-07-13 | 2001-01-30 | Orient Micro Wave:Kk | Power distributor and multiplexer |
| CN102938485A (en) * | 2012-11-05 | 2013-02-20 | 中国船舶重工集团公司第七二四研究所 | Multi-channel impedance conversion synthesis design method |
| CN206340653U (en) * | 2016-12-06 | 2017-07-18 | 南京华瓯电子科技有限公司 | The road power splitter of 6GHz 18GHz ultra wide bands 4 |
-
2019
- 2019-06-28 CN CN201910576292.6A patent/CN110233322A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001028507A (en) * | 1999-07-13 | 2001-01-30 | Orient Micro Wave:Kk | Power distributor and multiplexer |
| CN102938485A (en) * | 2012-11-05 | 2013-02-20 | 中国船舶重工集团公司第七二四研究所 | Multi-channel impedance conversion synthesis design method |
| CN206340653U (en) * | 2016-12-06 | 2017-07-18 | 南京华瓯电子科技有限公司 | The road power splitter of 6GHz 18GHz ultra wide bands 4 |
Non-Patent Citations (1)
| Title |
|---|
| CHONGZHE LI 等: ""A Low-loss, Impedance Matched λ/4 Compact T-Junction Power Combiner"", 《PROCEEDINGS OF THE 7TH EUROPEAN MICROWAVE INTEGRATED CIRCUITS CONFERENCE》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112510336A (en) * | 2020-11-27 | 2021-03-16 | 成都天锐星通科技有限公司 | Broadband power divider and electronic equipment |
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Application publication date: 20190913 |
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