CN209312979U - A kind of multilayer one divides four not equal part broadband power dividers - Google Patents
A kind of multilayer one divides four not equal part broadband power dividers Download PDFInfo
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- CN209312979U CN209312979U CN201920084842.8U CN201920084842U CN209312979U CN 209312979 U CN209312979 U CN 209312979U CN 201920084842 U CN201920084842 U CN 201920084842U CN 209312979 U CN209312979 U CN 209312979U
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Abstract
The utility model devises a kind of multilayer one and divides four not equal part broadband power dividers.Circuit is made of six layers of medium and seven layers of metal boundary, and the output end Port2 and Port3 of the intermediate output layers of the input terminal Port1 of intermediate input layer and two are strip line, and two output ends Port4 and Port5 of top layer and bottom are microstrip line；It to realize the smooth transition of electromagnetic signal in vertical direction, by two bending T-type Basic Couplings units backwards to cascading, forms with close coupling characteristic, transiting performance more preferably layer coupling structure, while can also be achieved the purpose of signal power coupling distribution.The power splitter works in 2.8-7.5GHz, and fixed percentage bandwidth 91.3%, when the thickness of each dielectric layer is equal, and the impedance of each input/output port is 50 Ω of standard, which realizes the uneven distribution of power in working frequency range.
Description
Technical field
The utility model relates to the power distributing techniques of multiplayer microwave circuit in wireless communication system, devise a kind of multilayer
One point of four not equal part broadband power divider, is applied in 2.8-7.5GHz frequency range.
Background technique
Power divider (abbreviation power splitter) is a kind of base components of microwave system and circuit, be commonly applied to frequency mixer,
It is main to realize power distribution and combined function in power amplifier, extensive MIMO array antenna and Phased Array Radar Antenna.
The power splitter of conventional monolayers planar circuit, such as Wilkinson, Bagley and Gysel power splitter, have that structure is complicated, circuit
Bulky dimensions are not suitable for being applied to the technical problems such as high band, have been difficult to meet the diversification of current novel wireless communication field
Growth requirement, find new design philosophy and topological structure, design multilayer, miniaturization, high-performance and high-power distribution function
Divide device structure, it has also become the hot spot of current power splitter research.
Summary of the invention
The utility model devises a kind of multilayer one and divides four not equal part broadband power dividers, applies in 2.8-7.5GHz frequency range,
Fixed percentage bandwidth is 91.3%.
To realize that above-mentioned purpose of design, the technical solution adopted in the utility model are as follows: circuit is a kind of comprising six layers of Jie
The multilayered structure of matter and seven layers of metal boundary, it for 3.55, loss tangent angle is 0.0029 that each layer of medium, which all uses dielectric constant,
Rogers4003C medium substrate, the thickness of each layer medium substrate is h=0.508mm.Intermediate input layer using strip line as
The input terminal (end Port1) of power divider circuit, and the output end of power divider circuit uses two kinds of transmission lines, is middle layer respectively
Strip line (end Port2 and the end Port3) and top layer and bottom microstrip line (end Port4 and the end Port5).Intermediate strip line is defeated
Enter, output layer and intermediate strip line transition zone use in transition coupling regime and carry on the back two basic bending T-type coupling units
It realizes that electromagnetic energy seamlessly transits in interlayer vertical direction to cascade mode, enables circuit vertical between dielectric layer
Three-dimensional distribution, reduces circuit size on direction, realizes coupling function point；This layer coupling structure has close coupling characteristic simultaneously,
It can be realized broadband；The coupling regime of top layer and bottom is basic bending T-type coupling unit, and end is directly and microstrip line
Tape is connected, the two of them output end as power divider circuit.While layer coupling transition, in each middle layer same layer
Two coupling regimes by strip line be connected, realize electromagnetic signal same layer directly transmit.Wherein, it is bent T-type Basic Couplings list
Member subtracts semicircular patch that the equal half-round metal patch of two diameters is formed, and subtracted by a rectangular metal patch
Diameter corresponds in power splitter working frequency range a quarter waveguide wavelength at centre frequency, and therefore, the working frequency range of circuit can be with
It is adjusted by changing the value of the diameter；And a complete coupling regime is carried on the back by two bending T-type Basic Couplings units
It is formed to cascade, that is, controls totally four spill half slots, the diameter of left and right half slot is close, but not necessarily identical.
The remarkable advantage of the utility model is: the power point in one point four of 2.8-7.5GHz frequency range not equal part may be implemented
Match.Circuit can change circuit working frequency range by adjusting the diameter of T-type Basic Couplings unit semi-circular groove, have good set
Count flexibility.And the circuit overall dimension is 12.6mm × 32mm × 3.048mm, compared to other multi-layer multiplex power splitters
Say that overall dimension is less than normal.In the power divider circuit, input terminal return loss S11Better than -10dB, insertion loss S21And S31It is excellent
In -6.4dB, S41And S51Isolation S better than -11.3dB, between each output port23、S24、S25And S45Be better than respectively-
10dB, -13dB, -18dB and -25dB.Since the working frequency range of the power splitter contains 3.3-5GHz, this frequency range belongs to low
Frequency range 5G communications band scope, can be applied to the 5G communication system of low-frequency range.
Detailed description of the invention
Fig. 1 is the overall structure diagram that a kind of multilayer one of the utility model divides four not equal part broadband power dividers.
Fig. 2 is the side view that a kind of multilayer one of the utility model divides four not equal part broadband power dividers.
Fig. 3 is the geometrized structure graph of strip line input layer 1 among power divider circuit.
Fig. 4 is strip line output layer 2(or geometrized structure graph 5) among power divider circuit.
Fig. 5 is strip line transition zone 3(or geometrized structure graph 6) among power divider circuit.
Fig. 6 is power divider circuit top layer and bottom microstrip line output layer 4(or geometrized structure graph 7).
Fig. 7 is that a kind of multilayer one of the utility model divides four not equal part broadband power divider input terminal return loss S11With it is each defeated
Insertion loss S of the outlet to input terminal21、S31、S41And S51Simulation result.
Fig. 8 is that a kind of multilayer one of the utility model divides four not isolation S between each output port of equal part broadband power divider23、
S24、S25And S45Simulation result.
Specific embodiment
With reference to the accompanying drawings of the specification, the utility model is described in further detail.
As shown in Figure 1, power divider circuit uses altogether six layers of medium and seven layers of metallic conductor face, each layer of medium substrate
Thickness be h=0.508mm, middle layer 1 using strip line as circuit input end Port1, middle layer 2 and 5 using strip line as
Circuit two of them output end Port2 and Port3, middle layer 3 and 6 are respectively between top layer and bottom and intermediate strip line output
Transition zone, top layer 4 and bottom 7 using microstrip line as circuit remaining two output ends Port4 and Port5, and the circuit with
The form for coupling transition realizes good power distribution performance.
As shown in Fig. 2, entire power divider circuit is segmented into four coupling regimes, corresponding length is respectively l1、l2、l3With
l4, and l1=l2=l3=l4=8mm, solid line are strip line or microstrip line, and heavy line is finite width conductor strip line or microstrip line, void
Line indicates no metallic conductor covering.Each input/output port marked in Fig. 2 is consistent with the content that Fig. 1 is marked, and can from Fig. 2
Directly to find out, circuit is symmetrical above and below about intermediate strip line input layer 1, i.e., the structure of layer 2, layer 3 and layer 4 respectively with layer 5, layer
6 and layer 7 correspondence it is identical.It mainly elaborates hereinafter to the specific structure of layer 1, layer 2, layer 3.
As shown in figure 3,101 be input terminal strip line, its length is l in intermediate input layer 11, width w1=
0.6mm；102 be length be l2Coupling regime, be made of two bending T-type Basic Couplings units backwards to cascade, coupling regime
The radius of 102 left side semicircle slots is r1=3mm, therefore each layer of media width (integrated circuit width) w=(4 × r1+w1)=12.6mm,
The radius r of right side semicircle slot3=(w-w3)/4=3.075mm, wherein w3It is l that=0.3mm, which is length,3Strip line 103 width；
Strip line 103 connects coupling regime 102 and coupling regime 104, realizes electromagnetic signal and directly transmits in same layer；Coupled zone
The length in domain 104 is l4, the radius of left side semicircle slot is r5=r3=3.075mm, right side are not slotted.
In intermediate output layer 2(or 5) as shown in figure 4, in, 201 be length be l1Coupling regime, left side do not slot,
The radius of right side semicircle slot is r2=( w-w2)/4=3.075mm, wherein w2It is l that=0.3mm, which is length,2Strip line 202 width
Degree；Strip line 202 is connected to coupling regime 201 and 203；The length of coupling regime 203 is l3, the radius of left side semicircle slot is r4=
r2=3.075mm, the radius of right side semicircle slot are r6=( w-w4)/4=3mm, wherein w4It is l that=0.6mm, which is length,4Output end band
The width of shape line 204.The coupling regime 102 and 104 of coupling regime 201 and 203 and intermediate input layer 1 generates layer coupling and makees
With realizing the layer to layer transition and power distribution of electromagnetic energy.
In intermediate layer 3(or 6) as shown in figure 5, in, 301 be length be l2Coupling regime, left side do not slot,
The radius of right side semicircle slot is r3=(w-w3)/4=3.075mm, wherein w3Be length be l3Strip line 302 width；Strip line
302 are connected to coupling regime 301 and 303；The length of coupling regime 303 is l4, the radius of left side semicircle slot is r5=r3=
3.075mm, right side are not slotted.The coupling regime 201 and 203 of coupling regime 301 and 303 and intermediate output layer 2 produces layer
Between coupling, in order to realize the layer to layer transition of electromagnetic energy.
As shown in fig. 6, in top layer 4(or bottom 7) in, 401 be length be l3Coupling regime, left side do not slot, right
The radius of side half slot is r7=(w-w5)/4=3.075mm, wherein w5It is l that=1.18mm, which is length,4Output end microstrip line 402
Width.Coupling regime 401 and the coupling regime 301 and 303 of intermediate layer 3 are realized again by the mode of layer coupling
The purpose of electromagnetic energy layer to layer transition and power distribution.
As shown in fig. 7, being the input terminal return loss that a kind of multilayer one of the utility model divides four not equal part broadband power dividers
S11And each output end is to the insertion loss S of input terminal21、S31、S41And S51Simulation result, in working frequency range 2.8-7.5GHz
It is interior, S11Better than -10dB, S21And S31Better than -6.4dB, S41And S51Better than -11.3dB, it is good to embody the power divider circuit
Power distribution performance.
As shown in figure 8, being that a kind of multilayer one of the utility model is divided four not between each output port of equal part broadband power divider
Isolation S23、S24、S25And S45Simulation result, in working frequency range 2.8-7.5GHz, S23Better than -11dB, S24Better than -9dB,
S25Better than -15dB, S45Better than -22dB, good isolation performance between output port is embodied.
Claims (2)
1. a kind of multilayer one divides four not equal part broadband power dividers, it is characterized in that: circuit includes six layers of medium and seven layers of metal boundary,
To realize that electromagnetic signal is seamlessly transitted in each medium interlayer, seven layers of metal boundary use Basic Couplings unit all to be bent T-type
The layer coupling structure of patch can be realized one point of four not equal part function point；Wherein, it is identical to be all made of thickness for six layers of medium
Rogers4003C medium substrate, seven layers of metal boundary are the metal patches constituted using being bent T-type as Basic Couplings unit, respectively
It is laid in by 5 layers of middle layer, top layer and the bottom after six layers of medium pressing totally seven layers of medium side；The bending T-type is basic
Coupling unit subtracts the equal half-round metal patch of two diameters by a rectangular metal patch and forms, the semicircle patch subtracted
The diameter of piece changes the adjustable circuit of diameter corresponding to a quarter waveguide wavelength at centre frequency in circuit working frequency range
Working frequency range；And a complete coupling regime is made of two bending T-type Basic Couplings units backwards to cascade, left and right totally four
The value of spill half slot, half circular diameter of left and right is close but not necessarily identical.
2. a kind of multilayer one according to claim 1 divides four not equal part broadband power dividers, it is characterized in that: each layer coupling regime
Between intercouple with close coupling characteristic, seamlessly transit, realize broadband in the vertical direction of electromagnetic signal between the layers.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115395198A (en) * | 2022-08-26 | 2022-11-25 | 中国电子科技集团公司第十研究所 | Multilayer ultra-wideband power divider and power dividing device comprising same |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115395198A (en) * | 2022-08-26 | 2022-11-25 | 中国电子科技集团公司第十研究所 | Multilayer ultra-wideband power divider and power dividing device comprising same |
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