CN101299478B - Wilkinson power divider - Google Patents
Wilkinson power divider Download PDFInfo
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- CN101299478B CN101299478B CN2008101148689A CN200810114868A CN101299478B CN 101299478 B CN101299478 B CN 101299478B CN 2008101148689 A CN2008101148689 A CN 2008101148689A CN 200810114868 A CN200810114868 A CN 200810114868A CN 101299478 B CN101299478 B CN 101299478B
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- power divider
- wilkinson power
- narrow
- asymmetric
- spur slot
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- 238000013461 design Methods 0.000 abstract description 4
- 238000005530 etching Methods 0.000 abstract description 3
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- 238000012937 correction Methods 0.000 abstract description 2
- 238000012545 processing Methods 0.000 abstract description 2
- 241001618883 Euphorbia uralensis Species 0.000 abstract 1
- 238000001914 filtration Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000005764 inhibitory process Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
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Abstract
The invention discloses a Wilkinson power divider, which is characterized in that: loading two narrow holes with different lengths, namely a first spurt narrow hole and a second spurt narrow hole, on an input port of the Wilkinson power divider to form an asymmetric spurt narrow hole structure; the length difference exists between the first and second spurge narrow holes; on the premise of not increasing the circuit area and the processing complexity, the Wilkinson power divider adopting the asymmetric spur narrow-hole structure can effectively inhibit higher harmonics, and the structure of the Wilkinson power divider does not need etching process and position correction on the back of the grounding plate, so that the Wilkinson power divider is compact in design, easy to integrate and convenient to use in a dense integrated circuit.
Description
Technical field
The present invention relates to a kind of microwave transmission device, particularly relate to a kind of Wilkinson power divider that adopts novel asymmetric spur slot OILS STRUCTURE DEPRESSION high order harmonic component.
Background technology
Reducing the distorted signals that harmonic wave causes is an important topic of modern microwave circuits.Usually, predistortion and feedback technique are widely used in the non-linear behaviour optimization and the raising of active device, to reduce harmonic wave and noise.On the other hand, owing to make advantages such as simple, with low cost, passive microstrip structures such as microstrip filter and band gap resonator also are usually used in harmonic wave and suppress.What is worth mentioning is; Photon band gap (PBG), electro-magnetic bandgap (EBG) and defect grounding structure (DGS); Reach characteristics cheaply because of having fabulous filter characteristic, be widely used in the high harmonic inhibition of antenna, coupler, amplifier and oscillator recently.But, several defective unit combinations of above-mentioned application need, this will cause taking big circuit area and bigger insertion loss.And therefore DGS, PBG and EBG need, increase microstrip circuit Production Time and difficulty of processing in ground plate back-etching technology and position correction program.
Spur slot (Spurline) is little band defect sturcture of planting a kind of simple, compact, the coplane in traditional microstrip line.This structure need not the check and correction in the etching technics at the ground plate back side and position, thereby compact to design, be easy to integrated, easy to use in intensive integrated circuits.And the spur slot has good band gap properties, has been used to antenna and Filter Design.
Summary of the invention
The technical problem that the present invention will solve is: suppress high order harmonic component in order to adopt a kind of comparatively simple method; The present invention proposes a kind of biobelt crack spur slot structure to be used for the Wilkinson power divider, and the power divider of gained is not only simple in structure but also can suppress high order harmonic component effectively.
The technical solution adopted for the present invention to solve the technical problems is: a kind of Wilkinson power divider is characterized in that: loading constitutes asymmetric spur slot structure by two different slots of length of the first spur slot and the second spur slot on Wilkinson power divider input port; Have length difference between the described first spur slot and the second spur slot; Can regulate the biobelt crack characteristic of said asymmetric spur slot structure through changing said length difference (3).
The advantage that the present invention is compared with prior art had: the present invention is not increasing under circuit area and the processed complex degree prerequisite, adopts the Wilkinson power divider of this asymmetric spur slot structure can suppress high order harmonic component effectively; And the present invention is compact to design, be easy to integrated, easy to use in intensive integrated circuits.
Description of drawings
Below in conjunction with accompanying drawing and embodiment patent of the present invention is further specified.
Fig. 1 is the structure chart of asymmetric spur slot;
Fig. 2 is the schematic layout pattern that adopts the Wilkinson power divider of asymmetric spur slot structure;
Among the figure: 1 is the first spur slot, and 2 is the second spur slot, and 3 is length difference, and 4 is input port, and 5 and 6 is output port, and 7 is Chip-R.
Embodiment
In Fig. 1, asymmetric spur slot structure is made up of 2 two different slots of length of the first spur slot 1 and the second spur slot, has length difference 3 between the first spur slot 1 and the second spur slot 2; Asymmetric spur slot structure has biobelt crack characteristic, has two resonance frequencys, and biobelt crack characteristic can be regulated through changing length difference 3.
The Wilkinson power divider of present embodiment is equipped with the asymmetric spur slot structure that is made up of spur slot 1 and spur slot 2 at input port 4 places; As shown in Figure 2, signal is from input port 4 inputs, and from output port 5 and 6 outputs, output port is connected with load impedance; Chip-R 7 is used for better isolation; Asymmetric spur slot structure is positioned over input port 4; Load asymmetric spur slot structure owing to adopt, characterize out the filtering characteristic with two different stopband characteristics at input port 4, two stopband positions in this filtering characteristic can differ from 3 by asymmetric spur slot structure length and regulate; In practical implementation; Differ from 3 through designing and regulating asymmetric spur slot structure length; Make Wilkinson power splitter input port 4 have the filtering characteristic of two stopbands, these two stopband positions be designed in input signal once with second harmonic frequency point place; Thereby, make traditional Wilkinson power splitter have good harmonic wave and suppress ability that make output signal line property characteristic greatly promote, harmonic suppression effect is about 10 to 30dB.
Claims (1)
1. a Wilkinson power divider is characterized in that: go up loading at Wilkinson power divider input port (4) and constitute asymmetric spur slot structure by (2) two slots that length is different of the first spur slot (1) and the second spur slot; Have length difference (3) between the described first spur slot (1) and the second spur slot (2); Can regulate the biobelt crack characteristic of said asymmetric spur slot structure through changing said length difference (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101148689A CN101299478B (en) | 2008-06-13 | 2008-06-13 | Wilkinson power divider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101148689A CN101299478B (en) | 2008-06-13 | 2008-06-13 | Wilkinson power divider |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101299478A CN101299478A (en) | 2008-11-05 |
| CN101299478B true CN101299478B (en) | 2012-04-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101148689A Expired - Fee Related CN101299478B (en) | 2008-06-13 | 2008-06-13 | Wilkinson power divider |
Country Status (1)
| Country | Link |
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| CN (1) | CN101299478B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106410356B (en) * | 2016-11-30 | 2020-08-18 | 中国科学院微电子研究所 | Miniature broadband power divider circuit based on spurt line |
| CN107946717A (en) * | 2017-10-31 | 2018-04-20 | 深圳市华讯方舟微电子科技有限公司 | Wilkinson power divider |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5192927A (en) * | 1991-07-03 | 1993-03-09 | Industrial Technology Research Institute | Microstrip spur-line broad-band band-stop filter |
| CN1155946A (en) * | 1995-06-07 | 1997-07-30 | 诺基亚电信公司 | Bypassable wilkinson divider |
| CN1780046A (en) * | 2004-11-19 | 2006-05-31 | 华为技术有限公司 | Improved welkinson equipower work distributor |
| JP2006197021A (en) * | 2005-01-11 | 2006-07-27 | Mitsubishi Electric Corp | Semiconductor device |
| WO2008031042A1 (en) * | 2006-09-07 | 2008-03-13 | Qualcomm Incorporated | Ku-band diplexer |
-
2008
- 2008-06-13 CN CN2008101148689A patent/CN101299478B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5192927A (en) * | 1991-07-03 | 1993-03-09 | Industrial Technology Research Institute | Microstrip spur-line broad-band band-stop filter |
| CN1155946A (en) * | 1995-06-07 | 1997-07-30 | 诺基亚电信公司 | Bypassable wilkinson divider |
| CN1780046A (en) * | 2004-11-19 | 2006-05-31 | 华为技术有限公司 | Improved welkinson equipower work distributor |
| JP2006197021A (en) * | 2005-01-11 | 2006-07-27 | Mitsubishi Electric Corp | Semiconductor device |
| WO2008031042A1 (en) * | 2006-09-07 | 2008-03-13 | Qualcomm Incorporated | Ku-band diplexer |
Non-Patent Citations (4)
| Title |
|---|
| A.Griol等.Microstrip multistage coupled ring bandpass filters using spur-line filters for harmonic suppression.《Electronics Letters》.2001,第37卷(第9期),572-573. * |
| 刘海文等.周期性缺陷接地结构的微带线.《电波科学学报》.2007,第22卷(第4期),675-679. * |
| 崔志富等.新型开槽线寄生频率抑制结构及其应用.《中国通信学会第五届学术年会论文集》.2008,697-701. * |
| 赵亮等.一种带有新型寄生通带抑制结构的交叉耦合滤波器设计.《军事通信技术》.2007,第28卷(第4期),84-86. * |
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| CN101299478A (en) | 2008-11-05 |
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