CN104518268B - Planar multi-stage power divider - Google Patents
Planar multi-stage power divider Download PDFInfo
- Publication number
- CN104518268B CN104518268B CN201410816738.5A CN201410816738A CN104518268B CN 104518268 B CN104518268 B CN 104518268B CN 201410816738 A CN201410816738 A CN 201410816738A CN 104518268 B CN104518268 B CN 104518268B
- Authority
- CN
- China
- Prior art keywords
- band wire
- input port
- annulus
- line
- output
- Prior art date
- 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.)
- Active
Links
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
Abstract
A planar multi-stage power divider comprises multiple radio frequency transmission lines composed of a metal strap line and a metal plate, wherein the metal strap line of each radio frequency transmission line comprises a lumped input port and K layers of ring strap lines surrounding the lumped input port, the connection between each lumped input port and the corresponding innermost-layer ring strap line and the connection between the ring strap lines are achieved through Y connection strap lines, the outermost-layer ring strap line of each radio frequency transmission line is connected with X output ports through X output strap lines extending outwards, and an isolation resistor is connected between every two adjacent output strap liens through a resistor connection strap line, wherein X is larger than or equal to 3, Y is larger than or equal to 5 and K is larger than or equal to 2. A plane of the power divider has multiple ports and is miniaturized, the flexibility of the X output ports is high, the bandwidth of the power divider is obviously increased through arrangement of the K layers of ring strap lines around each lumped input port, the isolation degree between the ports is good, and the power divider is easy to process and obtain and has good engineering practical value.
Description
Technical field
The invention belongs to radio frequency passive device manufacture field, and in particular to one kind can be applied to variously-shaped array antenna
On plane multiple power levels allotter.
Background technology
Power divider, as the term suggests it is exactly to multiple output port RF passive devices by the power distribution of input port
Part.The power divider being applied in aerial array mainly has two kinds of implementations, and the first scheme is to adopt power divider
Cascade system, such as one four cellular array antennas, its feeding network can adopt an one-to-two power divider to realize,
I.e. one one-to-two power divider each output port connects an one-to-two power divider again, and then realizes one point four
Purpose.Second scheme is using power divider non-cascaded mode, i.e., directly using one point of four power divider realization.
The aerial array more for array number, if using concatenated schemes, the size of feeding network often than larger, therefore very
Many occasions are realized using non-cascaded multiport power divider.
Existing non-cascaded multiport power divider is primarily present two big class：1) energy leads to from after input port feed-in
A big disk is crossed, the big disk is presented low-resistance, be directly added into N number of band wire on the outside of disk afterwards and realize that N roads export, referring to text
Offer [1] (Sushim Mukul Roy, Isaac Balbin, and Nemai Chandra Karmakar, Novel N-way
Power Divider and Array Configuration for RFID,2008IEEE Int RFID,2008,89-96.
See Fig. 1).Such power divider in addition to isolation is bad, because disk size determines its characteristic impedance and equivalent electric
Length, therefore want to obtain preferable matching effect, the number of N selects to suffer from certain restriction, or needing to increase work(
The size of rate allotter, or needing the equivalent input impedance for converting output port.2) directly from input port by N number of band wire
N number of matching band wire external again in parallel realizes output port 50ohm, is increased by connection resistance between N number of band wire two in parallel
Its isolation, referring to document [2]:(Yung-Jinn Chen,and Ruey-Beei Wu,A wide-band multiport
planar power-divider design using matched sectorial components in radial
Arrangement, IEEE Tran.Microw Theory Tech, 46, (1998), 1072-1078. is shown in Fig. 2).This scheme
The isolation between port is mainly improved, but with the increase of port number N, to realize impedance matching, N number of band wire in parallel
Characteristic impedance can increase, cause microstrip line more and more thinner, existing process be difficult to or mismachining tolerance to performance impact very
Greatly.This causes output port number N of the program to be subject to certain restrictions, and affects the further lifting of isolation.
The content of the invention
Present invention aims to above-mentioned defect of the prior art, there is provided a kind of output port number can be flexible
Control, size is little, bandwidth, the plane multiple power levels allotter that interport isolation is substantially improved.
To achieve these goals, the present invention includes some radio-frequency transmission lines being made up of metal band wire and metallic plate；
The K layer annulus band wire that described metal band wire includes a total input port and arranges around total input port, total input
Band wire connection is connected by Y bars between mouth and innermost circle annulus line and each layer annulus band wire, outermost layer annulus band wire passes through X
Output band wire that bar stretches out connects X output port, between adjacent output band wire by resistance connection band wire be connected with every
From resistance, wherein X >=3, Y >=5, K >=2.
Described total input port and the connect band line number amount between innermost circle annulus line and each layer annulus band wire by
It is interior to increasing successively outward, and the output on outermost layer annulus band wire excircle with number of lines more than the connection band wire on its inner periphery
Bar number.
Described connection band wire is uniformly distributed along the inner periphery of annulus band wire, exports band wire along the outer of outermost layer annulus band wire
Even circumferential is distributed.
Described K layer annulus band wire is arranged concentrically, and total input port is arranged on the center of circle of annulus band wire.
Described connection strip length is 0.05 λg~0.45 λg, wherein λgFor guide wavelength.
Described total input port is 50ohm with the impedance of X output port.
Plane multiple power levels allotter realizes that microstrip line construction includes medium substrate, metal band wire by microstrip line construction
And the part of metal floor three, metal band wire is with metal floor respectively positioned at the both sides up and down of medium substrate；Described metal tape
Line includes the microstrip line of X output port of connection, and K layer annulus microstrip lines and Y bars connect the microstrip line of total input port.
Plane multiple power levels allotter realizes that suspended stripline structure includes metal band wire, up and down by suspended stripline structure
Metal floor and the medium being filled between upper and lower metal floor, metal band wire is located between upper and lower metal floor；Described
Metal band wire includes the suspended stripline of X output port of connection, and K layer annulus suspended striplines and Y bars connect total input port
Suspended stripline.
Compared with prior art, present invention achieves power divider plane multiport miniaturization, output port X's is flexible
Property it is big, by arranging K layer annulus band wire, total input port and innermost circle annulus line and each layer annulus around total input port
Connect band wire by Y bars between band wire to be attached, considerably enhance the bandwidth of power divider, annulus band wire not only has company
The effect of total input port and X output port is connect, while the also effect with impedance matching, the radius of annulus band wire, connection
Band wire is with ring belt line width according to depending on impedance matching requirements.Power point of the present invention for output port number X more than 10
Orchestration, performance enhancing effects are more projected, and compared with traditional concatenated power allotter, the volume of power divider effectively subtracts
It is little.In addition band wire is connected by resistance between adjacent output port and is connected with isolation resistance, isolation resistance can be lifted port it
Between isolation, using the aerial array of this power divider, the mutual coupling between bay can be reduced, improve antenna
Radiance.The present invention compared to traditional type non-cascaded array antenna power divider, with size it is little the characteristics of, lead to
Over-subtraction small size, reduces the Insertion Loss of power divider, and the present invention is realized by pure-surface structure, it is easy to processing realization,
There is fabulous engineering practical value.
Further, the total connect band between input port and innermost circle annulus line and each layer annulus band wire of the present invention
Line number amount increases successively from the inside to the outside, and the output on outermost layer annulus band wire excircle is more than on its inner periphery with number of lines
Connect band number of lines, which decreases impact of the mismachining tolerance for power divider performance, improves the spirit of power splitter design
Activity.
Further, annulus band wire of the present invention is arranged concentrically, and total input port is arranged on the center of circle of annulus band wire, connect band
Line is uniformly distributed along the inner periphery of annulus band wire, and output band wire is uniformly distributed along the excircle of outermost layer annulus band wire, so makes
Power distribution when more uniform high-efficiency.
Further, present invention connection strip length is 0.05~0.45 times of guide wavelength, due to connecting total input
The connection strip length of mouth is related to the operating frequency of power divider, therefore length connection band wire composition within this range
Power divider power distribution best results.
Description of the drawings
The structural representation of the power divider of Fig. 1 documents 1；
The structural representation of the power divider of Fig. 2 documents 2；
The structural representation of Fig. 3 power dividers of the present invention；
The structural representation of Fig. 4 two stage power allotters of the present invention；
Wherein, the total input ports of 1-；2- connects band wire；3- annulus band wire；4- resistance connects band wire；5- isolation resistances；6-
Output band wire；7- output ports.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is described in further detail.
Referring to Fig. 1, existing non-cascaded multiport power divider operationally, after energy is by the feed-in of total input port 1
By a big disk, the big disk is presented low resistive state, is directly added into some strip line connections on the outside of big disk afterwards defeated
Exit port 7, realizes that multiport is exported.Because big disk size determines its characteristic impedance and equivalent electrical length, therefore want to obtain
Preferable matching effect, the number of output port selects to suffer from limiting, the size that needs to increase power divider or
The equivalent input impedance of conversion output port.
Referring to Fig. 2, the existing non-cascaded multiport power divider to improve interport isolation is logical in input port
Cross multiple band wire in parallel, then external several matching band wire realize that output port impedance is 50ohm.Between band wire two in parallel
Increase isolation by connecting resistance.When output port increases, impedance matching is realized, the characteristic impedance of band wire in parallel can increase
Plus, cause microstrip line more and more thinner, existing process is difficult to or mismachining tolerance is very big for the impact of performance.
Referring to Fig. 3, the K layers that metal band wire of the present invention includes a total input port 1 and arranges around total input port 1
Annulus band wire 3, K layer annulus band wire 3 is arranged concentrically, and total input port 1 is arranged on the center of circle of annulus band wire 3.Total input port 1 with
Connect band wire 2 by Y bars between innermost circle annulus line 3 and each layer annulus band wire 3 to connect, connection band wire 2 is along annulus band wire 3
Inner periphery be uniformly distributed and quantity from the inside to the outside increases successively, the length for connecting band wire 2 is 0.05 λg~0.45 λg, its
Middle λgFor guide wavelength.Outermost layer annulus band wire 3 by X bars stretch out setting output band wire 6 connect X output port 7,
And output band wire 6 is uniformly distributed along the excircle of outermost layer annulus band wire 3, the output band on the excircle of outermost layer annulus band wire 3
6 numbers of line connect band wire 4 and are connected between adjacent output band wire 6 more than 2 numbers of connection band wire on its inner periphery by resistance
Isolation resistance 5, wherein X >=3, Y >=5, K >=2.
Total input port 1 is 50ohm with the impedance of X output port 7.
Plane multiple power levels allotter of the present invention can realize that microstrip line construction includes medium base by microstrip line construction
Plate, metal band wire and the part of metal floor three, metal band wire is with metal floor respectively positioned at the both sides up and down of medium substrate；Gold
Category band wire includes the microstrip line of X output port 7 of connection, and K layer annulus microstrip lines and Y bars connect the micro-strip of total input port 1
Line.
Plane multiple power levels allotter of the present invention can also realize that suspended stripline structure includes gold by suspended stripline structure
Category band wire, upper and lower metal floor and the medium being filled between upper and lower metal floor, metal band wire is located at upper and lower metal floor
Between；Metal band wire includes the suspended stripline of X output port 7 of connection, K layer annulus suspended striplines and the total input of Y bars connection
The suspended stripline of port 1.
Referring to Fig. 4, one point of 13 power divider of two-stage of the present invention, energy then extends out three by the feed-in of input 1
Bar connects band wire 2, depending on connecting the length and width of band wire 2 with impedance matching theory, three articles of first order connection band wire 2 and the
Connected by first order annulus band wire 3 between two grades of seven connection band wire 2, annulus band wire 3 does not only connect two-stage connect band
The effect of line 2, while the effect with impedance matching.Seven of second level connection band wire 2 are by second level annulus band wire 3 and ten
Three output band wire 6 connects, and connects 13 output ports, 7,13 output band wire 6 by 13 output band wire 6 adjacent
Isolation resistance 5, and isolation resistance 5 is added to connect band wire 4 by resistance and be connected with output band wire 6 between two strip lines, isolation electricity
Resistance 5 can lift isolation between port.
Present invention achieves power divider plane multiport miniaturization, the motility of output port X is big, by around total
Input port arranges K layer annulus band wire, and Y bars are passed through between total input port and innermost circle annulus line and each layer annulus band wire
Connection band wire is attached, and the bandwidth of power divider is considerably enhanced, compared to the power of traditional non-cascaded array antenna
Allotter, with undersized feature, by reducing size, reduces the Insertion Loss of power divider, and the present invention by pure
Planar structure is realized, it is easy to which processing realizes there is fabulous engineering practical value.
Claims (7)
1. a kind of plane multiple power levels allotter, it is characterised in that：Including some by penetrating that metal band wire and metallic plate are constituted
Frequency transmission line；The K layers circle that described metal band wire includes a total input port (1) and arranges around total input port (1)
Annulus line (3), total input port (1) be connected by Y bars between innermost circle annulus line (3) and each layer annulus band wire (3)
Band wire (2) connects, and outermost layer annulus band wire (3) connects X output port (7) by the output band wire (6) that X bars stretch out,
Band wire (4) is connected by resistance between adjacent output band wire (6) and is connected with isolation resistance (5), wherein X >=3, Y >=5, K >=2；
Described total input port (1) and the connection band wire between innermost circle annulus line (3) and each layer annulus band wire (3)
(2) quantity increases successively from the inside to the outside, and output band wire (6) the bar number on outermost layer annulus band wire (3) excircle is big in the inner
Connection band wire (2) bar number on circumference.
2. plane multiple power levels allotter according to claim 1, it is characterised in that：Described connection band wire (2) is along circle
The inner periphery of annulus line (3) is uniformly distributed, and output band wire (6) is uniformly distributed along the excircle of outermost layer annulus band wire (3).
3. plane multiple power levels allotter according to claim 2, it is characterised in that：Described K layers annulus band wire (3) is same
The heart is arranged, and total input port (1) is arranged on the center of circle of annulus band wire (3).
4. plane multiple power levels allotter according to claim 2, it is characterised in that：Described connection band wire (2) length
For 0.05 λg~0.45 λg, wherein λgFor guide wavelength.
5. plane multiple power levels allotter according to claim 1, it is characterised in that：Described total input port (1) and X
The impedance of individual output port (7) is 50ohm.
6. plane multiple power levels allotter according to claim 1, it is characterised in that：Plane multiple power levels allotter passes through
Microstrip line construction realizes that microstrip line construction includes medium substrate, metal band wire and the part of metal floor three, metal band wire and gold
Possession plate is respectively positioned at the both sides up and down of medium substrate；Described metal band wire includes the micro-strip of X output port (7) of connection
Line, K layer annulus microstrip lines and Y bars connect the microstrip line of total input port (1).
7. plane multiple power levels allotter according to claim 1, it is characterised in that：Plane multiple power levels allotter passes through
Suspended stripline structure realizes that suspended stripline structure includes metal band wire, upper and lower metal floor and is filled in upper and lower metal floor
Between medium, metal band wire be located at upper and lower metal floor between；Described metal band wire includes X output port (7) of connection
Suspended stripline, K layer annulus suspended striplines and Y bars connect the suspended stripline of total input port (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410816738.5A CN104518268B (en) | 2014-12-24 | 2014-12-24 | Planar multi-stage power divider |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410816738.5A CN104518268B (en) | 2014-12-24 | 2014-12-24 | Planar multi-stage power divider |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104518268A CN104518268A (en) | 2015-04-15 |
| CN104518268B true CN104518268B (en) | 2017-05-17 |
Family
ID=52793224
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410816738.5A Active CN104518268B (en) | 2014-12-24 | 2014-12-24 | Planar multi-stage power divider |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104518268B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107799859B (en) * | 2017-09-18 | 2020-04-10 | 西安空间无线电技术研究所 | Non-cascaded arbitrary odd-path microstrip power divider |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728619A (en) * | 2010-01-25 | 2010-06-09 | 北京邮电大学 | Dual-frequency-band planar microstrip multi-path power divider |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101621149B (en) * | 2008-07-01 | 2013-01-16 | 电子科技大学 | Method for designing microwave and millimeter-wave spatial power synthesis amplifier |
| CN103346376B (en) * | 2013-06-27 | 2016-03-16 | 中国电子科技集团公司第四十一研究所 | Gradual change fin line extension waveguide space power distribution synthesizer |
-
2014
- 2014-12-24 CN CN201410816738.5A patent/CN104518268B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101728619A (en) * | 2010-01-25 | 2010-06-09 | 北京邮电大学 | Dual-frequency-band planar microstrip multi-path power divider |
Non-Patent Citations (1)
| Title |
|---|
| A Novell: 19 Microstrip Radial Power Divider Design for the Application in Antenna Array;Fangfang Fan, Wei Wang, and Zehong Yan;《2013 International Workshop on Microwave and Millimeter Wave Circuits and System Technology》;20131231;第17-19页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104518268A (en) | 2015-04-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11309926B2 (en) | Multiple band multiple mode transceiver front end flip-chip architecture and circuitry with integrated power amplifiers | |
| CN104505569A (en) | Plane multi-port power divider | |
| CN103916090B (en) | The amplifier of multiwinding transformer coupling | |
| CN107026657A (en) | High-frequency model and communicator | |
| CN104466335B (en) | A kind of electric adjusting power distributor with filter function | |
| CN107732400A (en) | A kind of millimeter wave broadband ridge probe radial waveguide power divider/synthesizer | |
| CN108110425A (en) | 2 × 4 wideband butler matrix plates, butler matrix and multibeam antenna | |
| US10826625B1 (en) | Antenna calibration network system, antenna calibration network and MIMO antenna | |
| Zhao et al. | Compact transformer power combiners for millimeter-wave wireless applications | |
| CN103378391A (en) | Balun | |
| CN104518268B (en) | Planar multi-stage power divider | |
| Yon et al. | A design of decoupling structure MIMO antenna for mutual coupling reduction in 5G application | |
| US9413329B2 (en) | Flip chip type saw band reject filter design | |
| US9667217B2 (en) | High performance integrated tunable impedance matching network with coupled merged inductors | |
| CN104767021B (en) | A kind of on-chip transformer balun of the high degree of balance in broadband | |
| CN105024125B (en) | Trisection odd structure work(point/combiner | |
| US11842845B2 (en) | Transformer structure | |
| US11189902B1 (en) | Method and apparatus for a miniature broadband RF power divider | |
| CN104183914B (en) | Wireless headphone and antenna for wireless headphone | |
| CN206340652U (en) | Radio frequency vertical transition structure comprising ceramic micro-strip | |
| CN208608341U (en) | Branch line coupler and frequency microwave equipment | |
| CN202905947U (en) | Microstrip antenna | |
| Han et al. | A Miniaturized Unequal Power Divider Design for 5G Telecommunication systems | |
| Dupuy et al. | Compact single and dual band zero-degree metamaterial N-way radial power combiner/divider | |
| CN205040013U (en) | Speaker structure and earphone structure with antenna function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |