CN105655679B - A kind of directrix plane high isolation multi-path power divider - Google Patents
A kind of directrix plane high isolation multi-path power divider Download PDFInfo
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- CN105655679B CN105655679B CN201610017652.5A CN201610017652A CN105655679B CN 105655679 B CN105655679 B CN 105655679B CN 201610017652 A CN201610017652 A CN 201610017652A CN 105655679 B CN105655679 B CN 105655679B
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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
Abstract
The present invention relates to a kind of directrix plane high isolation multi-path power dividers.Input radio frequency signal realizes the power distribution and input resistant matching of multichannel by upper layer power division network.By lower layer's isolation network and isolation resistance, the excellent isolation characteristic of each output port and output standing wave are realized.Upper layer power division network is connected with lower layer isolation network by plated-through hole.The present invention has many advantages, such as that multiport under directrix plane structure, high-isolation, filter with low insertion loss, good input/output standing-wave ratio, broadband, small size, each road output port signal amplitude/phase equalization are good and convenient for design, can theoretically realize the power distribution of unlimited multichannel.Present invention is mainly used for microwave and millimeter wave power combing amplification system, phased array antenna feeding networks etc., have broad application prospects in the microwave and millimeter waves system such as communication, radar, observing and controlling.
Description
Technical field
The present invention relates to a kind of novel directrix plane high isolation multi-path power dividers using double layer substrate.
Background technique
Power splitter is the critical component of power synthesis amplifier and phased array antenna feed system, directly determines systematicness
The quality of energy index.With military and commercial signal communication system fast development, for the demand in broadband, high-efficiency high-power amplifier
And it is growing day by day to the needs of the feeding network of the characteristics such as broadband, high isolation, planarization, filter with low insertion loss in phased array antenna.This
Just need broadband, efficiently, low-loss, plane, high isolation characteristic multi-path power divider/synthesizer.Traditional multi-path power divider
(such as multichannel wave-guide cavity wave power splitter) is mainly realized using 3 D stereo circuit, volume is not big, at high cost, easy of integration；While it
Good isolation characteristic between output port is often difficult to realize while realizing the road N power distribution.On the other hand, traditional two
System type power splitter, it is larger there are size and higher problem is lost although preferable isolation characteristic may be implemented.Therefore,
Plane, broadband, low-loss, the realization of high isolation characteristic multi-path power divider/synthesizer have the development of Modern Communication System
It is of great significance.
Summary of the invention
The object of the present invention is to provide a kind of directrix plane high isolation multi-path power divider, it has high-isolation, filter with low insertion loss, good
Good input/output standing-wave ratio, broadband, small size and be easy to the good characteristics such as active device is integrated, can theoretically realize
The power distribution of unlimited multichannel and high-isolation.Each road output port signal amplitude/phase equalization is good, is suitable for minimizing more
Function in road power synthetic system or array antenna divides feeding network.
To achieve the goals above, the invention proposes a kind of using double layer substrate structure, power division network and isolation network
Isolated power splitter.Its specific technical solution is as follows:
Directrix plane high isolation multi-path power divider, including upper layer and lower layer medium substrate, input/output micro-strip port, isolation electricity
Resistance, middle ground metal layer and plated-through hole.It is characterized in that, the directrix plane high isolation multi-path power divider, is situated between by two layers
Matter substrate and above two-layer substrate, intermediate and lower section three-layer metal layer constitute, upper metal layers are microstrip multi-channel power
Network is distributed, metallic intermediate layer layer is ground metal layer, and lower metal layer includes micro-strip isolation network and isolation resistance.Upper layer function
Rate distributes network and lower layer's isolation network passes through positioned at the metal away from upper layer power distributing network common point quarter-wave strong point
Change through-hole to connect, wherein the plated-through hole for crossing over middle ground metal layer does not connect with middle ground metal layer.Under
Layer isolation network is connected to the microstrip line and isolation resistance group that the common point other end is connected with upper layer Ge Lu micro-strip by four sections of one end
At, wherein every section of microstrip line is made of two sections of quarter-wave microstrip lines of different size, and isolation resistance one end is connected to
The junction of two sections of microstrip lines of different size, the other end by plated-through hole with being connected to intermetallic metal.
The directrix plane high isolation multi-path power divider is symmetrical structure, and upper layer is power distributing network, and lower layer is separation net
Signal amplitude/phase of network, every road output port is equal.Using two layers of medium substrate and three-layer metal layer, processed by pcb board
Technology realizes circuit structure.
Directrix plane high isolation multi-path power divider working principle proposed by the invention is as follows:
Radiofrequency signal is from the micro-strip port feed-in for being located at upper layer, the identical and symmetrical microstrip line by a plurality of structure, realizes
Multichannel constant amplitude, the signal output with phase.Lower layer's isolation network by a plurality of two point of one wavelength identical with function branch number microstrip line
Formed with the isolation resistance of same number, which is connected at common point, the other end by plated-through hole with
The connection of upper layer power division network, isolation resistance one end are connected to half wave microstrip line center, and the other end is logical by metallization
With being connected to intermetallic metal, with this high isolation and good output standing wave between each road output port are realized in hole.Due to circuit structure
Symmetry, it is ensured that each good amplitude and phase consistency of road output signal.The technology that the invention patent provides can meet
A variety of different application demands, such as multichannel power combing and phased array feeding network etc. have great application advantage.
Directrix plane high isolation multi-path power divider proposed by the invention, not only small in size, at low cost, compact-sized, design
Flexibly and easily, and with high output port isolation, each road signal amplitude and phase equalization is good, broadband, output standing wave are good
Etc. advantages.Present invention is mainly used for microwave power synthesis system, array antennas etc., in microwave systems such as communication, radar, observing and controlling
In have broad application prospects.
Detailed description of the invention
Fig. 1 is directrix plane high isolation multi-path power divider structural schematic diagram proposed by the present invention；
Fig. 2 is the S parameter simulation curve of Fig. 1；
Numbering in the drawing corresponds to title are as follows:
(1) medium substrate, (2) input micro-strip port, and (3) export micro-strip port, (4) middle ground metal layer, (5) isolation
Resistance, (6) plated-through hole, (7) lower layer isolation network.
Specific embodiment
Below by for example bright advantages of the present invention.
Example 1: as shown in Figure 1, directrix plane high isolation multi-path power divider proposed by the present invention, it includes following components.
Be respectively: two layers of medium substrate inputs micro-strip port, multiple-channel output micro-strip port, middle ground metal layer, isolation resistance, gold
Categoryization through-hole and lower layer's isolation network.
Power division network is located at upper metal layers, passes through a plurality of symmetrical quarter-wave micro-strip behind microstrip-fed port
Line is directly realized by multichannel, constant amplitude, the power distribution with phase.Isolation network is located at lower metal layer, and You Yugong branch number is identical
The isolation resistance composition of half wave microstrip line and corresponding number.Upper layer power division network and lower layer's isolation network pass through metal
Change through-hole connection, to realize the excellent isolation characteristic of each output port and impedance matching.
Fig. 2 (a) is the frequency response curve of example 1, as seen from the figure within the scope of 1.68GHz-2.47GHz input port return
Wave loss is all larger than 20dB, and in-band insertion loss is less than 0.4dB (the 6dB theory Insertion Loss not comprising four road power splitters).
Fig. 2 (b) is the output end port isolation characteristic of example 1, and as can be seen from Figure, the isolation of output port is in 1.49GHz-
It is greater than 20dB within the scope of 2.65GHz, 25dB is greater than within the scope of 1.8GHz-2.34GHz, it is special realizes output port high-isolation
Property.
Fig. 2 (c) is the output end reflection coefficient of port loss of example 1, and as can be seen from Figure, output port return loss is in 1.73GHz-
It is greater than 15dB within the scope of 2.47GHz.
Fig. 2 (d) is the output end port phase characteristic curve of example 1, as seen from the figure output port phase in entire frequency range
Bit integrity is fine.
Claims (2)
1. directrix plane high isolation multi-path power divider, including upper layer and lower layer medium substrate (1), input micro-strip port (2), multiple-channel output
Micro-strip port (3), middle ground metal layer (4), isolation resistance (5), plated-through hole (6) and lower layer's isolation network (7), it is special
Sign is that upper metal layers are microstrip multi-channel power distributing network, inputs micro-strip port (2) and multiple-channel output micro-strip port (3)
Positioned at upper metal layers, lower metal layer includes micro-strip isolation network (7) and isolation resistance (5)；Upper layer power distributing network with
Lower layer's isolation network (7), which passes through, is located at the plated-through hole (6) away from upper layer power distributing network common point quarter-wave strong point
Connect, wherein this across middle ground metal layer (4) plated-through hole (6) not with middle ground metal layer (4) phase
It connects；Lower layer's isolation network (7) by four sections of one end be connected to microstrip line that the common point other end is connected with upper layer Ge Lu micro-strip and every
It is formed from resistance (5), wherein every section of microstrip line is made of two sections of quarter-wave microstrip lines of different size, isolation electricity
Resistance (5) one end is connected to the junctions of two sections of microstrip lines of different size, during the other end is connected to by plated-through hole (6)
Metal layer (4) indirectly, to realize the high isolation characteristic of output port and circuit small size and be easily integrated characteristic.
2. directrix plane high isolation multi-path power divider according to claim 1 is needed by PCB substrate processing technology
Input micro-strip port (2), multiple-channel output micro-strip port (3), middle ground metal layer (4), plated-through hole (6) and lower layer every
Off-network network (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610017652.5A CN105655679B (en) | 2016-01-12 | 2016-01-12 | A kind of directrix plane high isolation multi-path power divider |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610017652.5A CN105655679B (en) | 2016-01-12 | 2016-01-12 | A kind of directrix plane high isolation multi-path power divider |
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| Publication Number | Publication Date |
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| CN105655679A CN105655679A (en) | 2016-06-08 |
| CN105655679B true CN105655679B (en) | 2019-04-09 |
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| CN201610017652.5A Expired - Fee Related CN105655679B (en) | 2016-01-12 | 2016-01-12 | A kind of directrix plane high isolation multi-path power divider |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106099295B (en) * | 2016-07-21 | 2019-07-26 | 电子科技大学 | The directrix plane broadband port the Gong Fen/restructural power splitter of number |
| CN110718733A (en) * | 2018-07-11 | 2020-01-21 | 深南电路股份有限公司 | Radio frequency power synthesizer |
| CN108808199B (en) * | 2018-07-31 | 2020-11-13 | 南京理工大学 | Multipath arbitrary power division ratio Gysel type power divider |
| CN112886172B (en) * | 2021-01-13 | 2022-01-04 | 电子科技大学 | Multi-path power divider with reconfigurable power dividing path number |
| CN112886174B (en) * | 2021-01-13 | 2021-09-28 | 电子科技大学 | Four-way millimeter wave isolation characteristic isolation-free resistance power divider |
| CN114883770B (en) * | 2022-04-14 | 2023-11-07 | 上海大学 | Plane type arbitrary multipath power divider and synthesizer |
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| US20100225417A1 (en) * | 2009-03-03 | 2010-09-09 | Selex Galileo S.P.A. | N-Way Divider/Combiner, With N Different From A Power Of Two, Obtained In Planar, Monolithic, And Single-Face Technology For Distribution Networks For Avionic Radars With Electronic Beam-Scanning Antenna |
| CN101924265A (en) * | 2010-08-11 | 2010-12-22 | 安徽锦特微波电子有限公司 | Microwave and millimeter wave high-isolation power divider |
| CN101938029A (en) * | 2009-06-30 | 2011-01-05 | 启碁科技股份有限公司 | Power splitter with high isolation |
| CN103745029A (en) * | 2013-12-12 | 2014-04-23 | 西安电子工程研究所 | High-power isolation resistor of microwave power divider and design method of isolation resistor |
| CN104505569A (en) * | 2014-11-14 | 2015-04-08 | 西安电子科技大学 | Plane multi-port power divider |
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2016
- 2016-01-12 CN CN201610017652.5A patent/CN105655679B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100225417A1 (en) * | 2009-03-03 | 2010-09-09 | Selex Galileo S.P.A. | N-Way Divider/Combiner, With N Different From A Power Of Two, Obtained In Planar, Monolithic, And Single-Face Technology For Distribution Networks For Avionic Radars With Electronic Beam-Scanning Antenna |
| CN101938029A (en) * | 2009-06-30 | 2011-01-05 | 启碁科技股份有限公司 | Power splitter with high isolation |
| CN101924265A (en) * | 2010-08-11 | 2010-12-22 | 安徽锦特微波电子有限公司 | Microwave and millimeter wave high-isolation power divider |
| CN103745029A (en) * | 2013-12-12 | 2014-04-23 | 西安电子工程研究所 | High-power isolation resistor of microwave power divider and design method of isolation resistor |
| CN104505569A (en) * | 2014-11-14 | 2015-04-08 | 西安电子科技大学 | Plane multi-port power divider |
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