CN105789802B - A kind of ultra wide band balun based on novel interconnection architecture - Google Patents
A kind of ultra wide band balun based on novel interconnection architecture Download PDFInfo
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- CN105789802B CN105789802B CN201410776380.8A CN201410776380A CN105789802B CN 105789802 B CN105789802 B CN 105789802B CN 201410776380 A CN201410776380 A CN 201410776380A CN 105789802 B CN105789802 B CN 105789802B
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- microstrip line
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- conduction band
- line conduction
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Abstract
The present invention proposes a kind of ultra wide band balun based on novel interconnection architecture.Including rectangular medium substrate；The front of medium substrate is provided with T junction power divider, coplanar stripline, Two-port netwerk output end microstrip line conduction band, three port output end microstrip line conduction bands；The reverse side of medium substrate is provided with Two-port netwerk output end microstrip line, three port output end microstrip lines, co-planar waveguide, input terminal microstrip line；It is provided with device of multiple circular metal through-holes for connecting medium substrate positive and negative in the dielectric substrate.Size of the present invention is small, circuit structure is compact, insertion loss is small, has good output port matching properties.
Description
Technical field
The invention belongs to microwave passive component technical fields, and in particular to a kind of ultra wide band bar based on novel interconnection architecture
Human relations.
Background technology
In field of antenna, dipole antenna belongs to balanced type antenna, to need a balun to convert unbalanced signal
To feed for balanced type antenna for balanced signal.Balun is balun, be capable of providing constant amplitude reverse signal and
Realize impedance matching.Most common signal transmssion line is microstrip line in microwave current integrated circuit, and transmission is non-equilibrium signal,
And co-planar waveguide and coplanar stripline are all single side transmission lines, have size small, are easily integrated, it is wide convenient for being realized with microstrip structure
The features such as band interconnection architecture.Based on this background, we are realized using microstrip line-co-planar waveguide and microstrip line-coplanar stripline
A kind of loss is low, size is small, the ultra wide band balun of preferable port match performance.
Has the document report structure of ultra wide band balun：
(Vicente Gonz á lez-Posadas, Carlos Mart í n-Pascual, the Jos é Luis Jim é of document 1
nez-Martín,and Daniel Segovia-Vargas,Lumped-element balun for UHF UWB printed
balanced antennas,IEEE Transactions on antenna and propagation,2008,56,(7)：
Using capacitive character and inductive are presented respectively in high pass unit and low pass cellular construction in 2102-2107), in this way by appropriate
Measure in parallel, to obtain the phase reverse characteristic of two output ports, but the balun is realized based on half lamped element,
It is difficult to realize wide bandwidth, and insertion loss is big.
(Peng Wu, Yong Zhang, Yu-Liang Dong, and Qin Zhang, the A novel Ka-band of document 2
planar balun using microstrip-CPS-microstrip transition,IEEE Microwave
Wireless Compon.Lett.,2011,21,(3):Two symmetrical microstrip line-coplanar striplines of utilization in 136-138)
Interconnection architecture realizes the balun in broadband, but the size of balun is bigger and structure is more complicated.
Document 3 (Jin Shao, Rongguo Zhou, Chang Chen, Xiao-Hua Wang, Hyoungsoo Kim,
and Hualiang Zhang,Design of a wideband balun using parallel strips,IEEE
Microwave Wireless Compon.Lett.,2013,23,(3):In 125-127) width is realized using phase converter
The balun of band has preferable port match characteristic, but the size of balun is larger.
In conclusion realization method of the balun designed in (1) document 1 using half lamped element, in millimere-wave band
The loss of lamped element compared with and make circuit be not easy to process；(2) the wideband balun size designed in document 2 is larger and structure is multiple
It is miscellaneous；(3) wideband balun designed in document 3 has the shortcomings that size is big.
Invention content
The purpose of the present invention is being provided based on novel interconnection architecture, a kind of size is small, circuit structure is compact, insertion loss
Ultra wide band baluns small, with good output port matching properties.
In order to solve the above technical problem, the present invention provides a kind of ultra wide band baluns based on novel interconnection architecture, including
Rectangular medium substrate；The front of medium substrate is provided with T junction power divider, coplanar stripline, Two-port netwerk output
Hold microstrip line conduction band, three port output end microstrip line conduction bands；The reverse side of medium substrate is provided with Two-port netwerk output end microstrip line
Floor, three port output end microstrip lines, co-planar waveguide, input terminal microstrip line；It is provided in the dielectric substrate multiple
Circular metal through-hole is used to connect the device of medium substrate positive and negative.
Preferably, T junction power divider is by the T junction microstrip line conduction band and and T junction parallel with medium substrate short side
The vertical input terminal microstrip line conduction band of microstrip line conduction band is constituted；One end of input terminal microstrip line conduction band is located at medium substrate short side
Edge；The center of T junction microstrip line conduction band is located on the central axis parallel with medium substrate long side, T junction microstrip line conduction band
One end connect with coplanar stripline, the other end is connect with a circular metal through-hole, and together by the circular metal through-hole
Surface wave leads connection.
Preferably, Two-port netwerk output end microstrip line conduction band, three port output end microstrip line conduction bands are each perpendicular to medium substrate
Narrow side, and one end is respectively positioned on the edge of medium substrate narrow side；The other end and coplanar strip of Two-port netwerk output end microstrip line conduction band
Shape line connects, and the other ends of three port output end microstrip line conduction bands is connect with two circular metal through-holes simultaneously, and by this two
A circular metal through-hole is connect with co-planar waveguide.
Preferably, coplanar stripline includes two parallel microstrip line conduction bands, wherein the both ends of a microstrip line conduction band point
Do not connect with two circular metal through-holes, and by circular metal through-hole respectively with Jie's Two-port netwerk output end microstrip line and defeated
Enter microstrip line is held to connect；One end of another microstrip line conduction band and Two-port netwerk output end microstrip line conduction band in coplanar stripline
Connection, the other end are connect with T junction power divider.
Preferably, input terminal microstrip line is rectangle, three while positioned at three of medium substrate on, another side with
The floor of co-planar waveguide connects.
Preferably, Two-port netwerk output end microstrip line is rectangle, the central axis of center axis and coplanar stripline
It overlaps, and it is connected by a wherein conduction band for a metal throuth hole and coplanar stripline.
Preferably, three port output end microstrip lines are rectangle, center axis is led with three port output end microstrip lines
The central axis coincidence of band, co-planar waveguide.
Preferably, one end of the signal wire of co-planar waveguide is connect with three port output end microstrip lines, the other end passes through
One metal throuth hole is connect with microstrip line conduction band, and the one end on the floor of co-planar waveguide is connected with input terminal microstrip line, another
End is connect by two metal throuth holes with three port output end microstrip line conduction bands.
Preferably, medium substrate relative dielectric constant 3.38, thickness 0.508mm；It is 50 to input microstrip line characteristic impedance
Ohm, width 1.05mm；Two-port netwerk output end microstrip line and three port output end microstrip line characteristic impedances are 75 ohm, width
For 0.3mm；The length L3 of coplanar stripline is 4.2mm, groove width 0.17mm；The length of the signal wire of co-planar waveguide is 2.4mm,
Groove width is 0.4mm；Distance between Two-port netwerk output end microstrip line and three port output end microstrip lines is 6.25mm；Metal throuth hole
Radius is 0.3mm.
Preferably, input microstrip line conduction band deviates balun symmetry axis 1.5mm.
Compared with prior art, the present invention its remarkable advantage is, the structure of (1) balun is simple, can be on monolithic pcb board
It realizes, just with processing, production cost is low；(2) balun has the function of providing constant amplitude reverse signal and impedance matching, to balance day
The RF components such as line no longer need to use impedance matching section when feeding；(3) size of balun is small, working band is wide (from 0.13MHz to
5.2GHz, bandwidth ratio are more than 50:1), insertion loss is small, output port has the characteristics such as matched well characteristic.
Description of the drawings
Fig. 1 is the 3D structural schematic diagrams of the ultra wide band balun embodiment the present invention is based on novel interconnection architecture.
Fig. 2 is the overlooking structure diagram of the ultra wide band balun embodiment the present invention is based on novel interconnection architecture.
Fig. 3 is the structure size schematic diagram the present invention is based on the embodiment of the ultra wide band balun of novel interconnection architecture.
Fig. 4 is the S parameter analogous diagram the present invention is based on the embodiment of the ultra wide band balun of novel interconnection architecture.
Fig. 5 is that the present invention is based on the two of the embodiment of the ultra wide band balun of novel interconnection architecture output port amplitude differences
Analogous diagram.
Fig. 6 is that the present invention is based on the two of the embodiment of the ultra wide band balun of novel interconnection architecture output port phase differences
Analogous diagram.
Specific implementation mode
A kind of ultra wide band balun based on novel interconnection architecture of the present invention, including rectangular medium substrate 9；In medium base
It is defeated that the front of plate 9 is provided with T junction power divider 2, coplanar stripline 4, Two-port netwerk output end microstrip line conduction band 6, three ports
Outlet microstrip line conduction band 7；Wherein,
T junction power divider 2 by input terminal microstrip line conduction band 1 and with 1 T-type connected vertically of input terminal microstrip line conduction band
It ties microstrip line conduction band 12 to constitute, one end of input terminal microstrip line conduction band 1 is located at the edge of 9 short side of medium substrate, the other end and T-type
Microstrip line conduction band 12 is tied to connect；T junction microstrip line conduction band 12 is parallel with 9 short side of medium substrate, in T junction microstrip line conduction band 12
The heart is located on the central axis parallel with 9 long side of medium substrate, and one end and the coplanar stripline 4 of T junction microstrip line conduction band 12 connect
It connects, the other end is connect with a circular metal through-hole 3, and is connect with co-planar waveguide 10 by the circular metal through-hole 3.
Two-port netwerk output end microstrip line conduction band 6, three port output end microstrip line conduction bands 7 are each perpendicular to the narrow of medium substrate 9
Side, and the edge for thering is one end to be located at 9 narrow side of medium substrate；The other end of Two-port netwerk output end microstrip line conduction band 6 with it is coplanar band-like
Line 4 connects, and the other end of three port output end microstrip line conduction bands 7 is connect with two circular metal through-holes 3 simultaneously, and passes through two
Circular metal through-hole 3 is connect with the co-planar waveguide 10 of 9 reverse side of medium substrate；
Coplanar stripline 4 includes two parallel microstrip line conduction bands, wherein the both ends of a microstrip line conduction band are respectively with two
A circular metal through-hole 3 connects, and by circular metal through-hole 3 respectively with the Two-port netwerk output end micro-strip of 9 reverse side of medium substrate
Line floor 5 and input terminal microstrip line 11 connect；One end of another microstrip line conduction band and Two-port netwerk are defeated in coplanar stripline 4
Outlet microstrip line conduction band 6 connects, and the other end is connect with T junction power divider 2.
The reverse side of medium substrate 9 includes Two-port netwerk output end microstrip line 5, three port output end microstrip lines 8, is total to
Surface wave leads 10, input terminal microstrip line 11, wherein
Input terminal microstrip line 11 is rectangle, and three overlap while positioned at three of medium substrate 9, and another side is together
Surface wave leads 10 floor connection；
Two-port netwerk output end microstrip line 5 is rectangle, and center axis is overlapped with the central axis of coplanar stripline 4,
And it is connect by a metal throuth hole 3 with a wherein conduction band for coplanar stripline 4,
Three port output end microstrip lines 8 are rectangle, and center axis and three port output end microstrip line conduction bands 7 are total to
The central axis that surface wave leads 10 overlaps,
One end of the signal wire of co-planar waveguide 10 is connect with three port output end microstrip lines 8, and the other end passes through one
Metal throuth hole 3 is connect with T junction microstrip line conduction band 12, one end and 11 phase of input terminal microstrip line on the floor of co-planar waveguide 10
Even, the other end is connect by two metal throuth holes 3 with three port output end microstrip line conduction bands 7.
The present invention is based on the course of work of the ultra wide band balun of novel interconnection architecture is as follows：Electromagnetic signal is from input terminal micro-strip
Line 1 enters balun, and two-way constant amplitude signal in the same direction is obtained by T junction power divider 2, wherein signal is by coplanar band-like all the way
Line 4 is transferred to Two-port netwerk output end microstrip line conduction band 6 along coplanar stripline 4 and Two-port netwerk output end microstrip line 5 forms
Two-port netwerk output end microstrip transmission line；Likewise, another way signal passes through co-planar waveguide 10, it is transferred to along co-planar waveguide 10
Three port output end microstrip transmission lines of three port output end microstrip line conduction bands 7 and three port output end microstrip lines 8 composition.
In structure, input terminal microstrip line conduction band 1, Two-port netwerk output end microstrip line conduction band 6 and three port output end micro-strips
The width of line conduction band 7 is determined according to the impedance of port, is typically entered end microstrip line conduction band 1 and is designed as 50 ohm microstrips correspondence width
Degree；In antenna applications field, Two-port netwerk output end microstrip line conduction band 6 and three port output end microstrip line conduction bands, 7 width are according to day
The input impedance of line determines.Line width, 10 signal wire of co-planar waveguide and the output port microstrip line conduction band width of coplanar stripline 4 are protected
It holds consistent.It after the bandwidth of balun increases up to maximum value with the length increase of co-planar waveguide 10, and can reduce, control coplanar strip
Groove width between 4 two transmission lines of shape line has corrective action, control signal micro- two output port amplitude matching properties of balun
Distance with the 1 deviation structure axis of symmetry of line conduction band can adjust two output port phase matching characteristics of balun.In manufacture, lead to
It crosses printed-circuit board manufacturing technology and forms required metal pattern to the circuit fabrication of circuit board front-side circuit and the back side.
Embodiment
In conjunction with Fig. 1, Fig. 2, Fig. 3, the ultra wide band balun based on novel interconnection architecture to be operated in 0.15-5.2GHz is
Example, 9 relative dielectric constant 3.38 of medium substrate of use, thickness 0.508mm.It is 50 ohm to input 1 characteristic impedance of microstrip line,
The width W1 for inputting microstrip line 1 is 1.05mm, 7 characteristic impedance of Two-port netwerk output end microstrip line 6 and three port output end microstrip lines
It it is 75 ohm, width W2 is 0.3mm.The line width of coplanar stripline 4 is consistent with W2, and length L3 is 4.2mm, and groove width S1 is
0.17mm；The signal line width of co-planar waveguide 10 is consistent with W2, and length L4 is 2.4mm, and groove width S2 is 0.4mm, Two-port netwerk output
It is 6.25mm to hold the distance L2 between microstrip line 6 and three port output end microstrip lines 7.The radius of metal throuth hole 3 is 0.3mm, input
The distance L1 that microstrip line conduction band 1 deviates balun symmetry axis is 1.5mm.
The present embodiment ultra wide band balun is the modeling and simulating in electromagnetic simulation software HFSS.13.Fig. 4 is in the present embodiment
The S parameter analogous diagram of ultra wide band balun, it can be seen from the figure that the S parameter of balun be less than within the scope of 0.15-5.2GHz-
10dB's, insertion loss is less than 1.3dB, and frequency multiplication bandwidth is 34.7, has the advantages that ultra wide band low insertion loss.
Fig. 5 is two Differential Output port amplitude differences of ultra wide band balun in the present embodiment, it can be seen from the figure that the reality
Two Differential Output port amplitude differences of balun are applied within 0.2dB.
Fig. 6 is two Differential Output port phase differences of ultra wide band balun in the present embodiment, it can be seen from the figure that the reality
Two Differential Output port phase differences of balun are applied within 180 ± 2 degree.
In conclusion the present invention is based on the ultra wide band balun of novel interconnection architecture, based on wireless communication to broadband, small-sized
Change development, realizes ultra wide band balun using two distinct types of broadband interconnection architecture, this structure includes two symmetrical
Interconnection architecture, co-planar waveguide, microstrip line conduction band and microstrip line form interconnection architecture, are formed at crossings on different level, be connected to
One output port of microstrip line conduction band structure, coplanar stripline, microstrip line conduction band and microstrip line form interconnection architecture, even
It is connected to another output port of microstrip line conduction band structure；The present invention utilizes microstrip line-co-planar waveguide and the coplanar micro-strip of microstrip line-
Line width band interconnection architecture realizes ultra wide band balun, with size is small, circuit structure is compact, insertion loss is small, two Differential Outputs
The advantages that port match characteristic is good, ultra wide band.
Claims (5)
1. a kind of ultra wide band balun based on novel interconnection architecture, which is characterized in that including rectangular medium substrate (9)；
The front of medium substrate (9) is provided with T junction power divider (2), coplanar stripline (4), Two-port netwerk output end microstrip line and leads
Band (6), three port output end microstrip line conduction bands (7)；The reverse side of medium substrate (9) with being provided with Two-port netwerk output end microstrip line
Plate (5), three port output end microstrip lines (8), co-planar waveguide (10), input terminal microstrip line (11)；In medium substrate
(9) device of multiple circular metal through-holes (3) for connecting medium substrate (9) positive and negative is provided in；
T junction power divider (2) is by the T junction microstrip line conduction band (12) parallel with medium substrate (9) short side and and T junction
The vertical input terminal microstrip line conduction band (1) of microstrip line conduction band (12) is constituted；One end of input terminal microstrip line conduction band (1) is located at medium
The edge of substrate (9) short side；The center of T junction microstrip line conduction band (12) is located at the central shaft parallel with medium substrate (9) long side
On line, one end of T junction microstrip line conduction band (12) is connect with coplanar stripline (4), the other end and a circular metal through-hole (3)
Connection, and connect with co-planar waveguide (10) by the circular metal through-hole (3)；
Two-port netwerk output end microstrip line conduction band (6), three port output end microstrip line conduction bands (7) are each perpendicular to medium substrate (9)
Narrow side, and one end is respectively positioned on the edge of medium substrate (9) narrow side；The other end of Two-port netwerk output end microstrip line conduction band (6) is together
Face strip line (4) connects, and the other end of three port output end microstrip line conduction bands (7) connects with two circular metal through-holes (3) simultaneously
It connects, and is connect with co-planar waveguide (10) by two circular metal through-holes (3)；
Coplanar stripline (4) includes two parallel microstrip line conduction bands, wherein the both ends of a microstrip line conduction band respectively with two
Circular metal through-hole (3) connects, and by circular metal through-hole (3) respectively with Two-port netwerk output end microstrip line (5) and defeated
Enter to hold microstrip line (11) to connect；One end of another microstrip line conduction band and Two-port netwerk output end are micro- in coplanar stripline (4)
Band line conduction band (6) connects, and the other end is connect with T junction power divider (2)；
Two-port netwerk output end microstrip line (5) is rectangle, and center axis is overlapped with the central axis of coplanar stripline (4),
And it is connect by a metal throuth hole (3) with a wherein conduction band for coplanar stripline (4)；
One end of the signal wire of co-planar waveguide (10) is connect with three port output end microstrip lines (8), and the other end passes through one
Metal throuth hole (3) is connect with T junction microstrip line conduction band (12), and the one end on the floor of co-planar waveguide (10) is with input terminal microstrip line
Plate (11) is connected, and the other end is connect by two metal throuth holes (3) with three port output end microstrip line conduction bands (7).
2. the ultra wide band balun as described in claim 1 based on novel interconnection architecture, which is characterized in that input terminal microstrip line
(11) be rectangle, three while positioned at three of medium substrate (9) on, another side is connect with the floor of co-planar waveguide (10).
3. the ultra wide band balun as described in claim 1 based on novel interconnection architecture, which is characterized in that three port output end micro-strips
Line floor (8) is rectangle, center axis and three port output end microstrip line conduction bands (7), the central axis of co-planar waveguide (10)
It overlaps.
4. the ultra wide band balun as described in claim 1 based on novel interconnection architecture, which is characterized in that medium substrate (9) is opposite
Dielectric constant 3.38, thickness 0.508mm；Input terminal microstrip line conduction band (1) characteristic impedance is 50 ohm, width 1.05mm；
Two-port netwerk output end microstrip line conduction band (6) and three port output end microstrip line conduction band (7) characteristic impedances are 75 ohm, and width is
0.3mm；The length L3 of coplanar stripline (4) is 4.2mm, groove width 0.17mm；The length of the signal wire of co-planar waveguide (10) is
2.4mm, groove width 0.4mm；Distance between Two-port netwerk output end microstrip line (6) and three port output end microstrip lines (7) is
6.25mm；The radius of metal throuth hole (3) is 0.3mm.
5. the ultra wide band balun as described in claim 1 based on novel interconnection architecture, which is characterized in that input terminal microstrip line conduction band
(1) deviate balun symmetry axis 1.5mm.
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| CN201410776380.8A CN105789802B (en) | 2014-12-15 | 2014-12-15 | A kind of ultra wide band balun based on novel interconnection architecture |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106684516B (en) * | 2016-12-15 | 2019-05-28 | 南通大学 | A kind of three line balun of broadband |
| CN106450707B (en) * | 2016-12-16 | 2023-06-30 | 淮阴工学院 | Balun suitable for dipole antenna |
| CN106654557B (en) * | 2016-12-16 | 2023-09-29 | 淮阴工学院 | Double-frequency-point broadband dipole antenna |
| CN107046171A (en) * | 2017-03-18 | 2017-08-15 | 深圳市景程信息科技有限公司 | Balun circuit structure with portal structure antenna |
| CN108123196B (en) * | 2017-12-25 | 2020-06-02 | 北京邮电大学 | Broadband filtering integrated stereo balun based on vertical double-sided parallel strip lines |
| CN113612456A (en) * | 2021-10-11 | 2021-11-05 | 深圳飞骧科技股份有限公司 | Broadband microwave power amplifier |
| CN114447596B (en) * | 2022-01-25 | 2022-10-18 | 北京星英联微波科技有限责任公司 | Broadband vertical planar printed gain enhanced antenna with H-shaped resonator structure |
| CN114678673B (en) * | 2022-04-02 | 2023-03-14 | 西安电子科技大学 | Broadband balun loaded with ferrite magnetic ring |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4882553A (en) * | 1987-09-25 | 1989-11-21 | U.S. Philips Corp. | Microwave balun |
| CN103367850A (en) * | 2013-06-24 | 2013-10-23 | 华为技术有限公司 | Balun and electronic product |
| CN104022322A (en) * | 2013-03-01 | 2014-09-03 | 国基电子（上海）有限公司 | Balun |
| CN204391233U (en) * | 2014-12-15 | 2015-06-10 | 南京理工大学 | A kind of ultra wide band balun based on novel interconnect architecture |
-
2014
- 2014-12-15 CN CN201410776380.8A patent/CN105789802B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4882553A (en) * | 1987-09-25 | 1989-11-21 | U.S. Philips Corp. | Microwave balun |
| CN104022322A (en) * | 2013-03-01 | 2014-09-03 | 国基电子（上海）有限公司 | Balun |
| CN103367850A (en) * | 2013-06-24 | 2013-10-23 | 华为技术有限公司 | Balun and electronic product |
| CN204391233U (en) * | 2014-12-15 | 2015-06-10 | 南京理工大学 | A kind of ultra wide band balun based on novel interconnect architecture |
Non-Patent Citations (1)
| Title |
|---|
| A Novel Ka-Band Planar Balun Using Microstrip-CPS-Microstrip Transition;Peng Wu等;《IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS》;20110331;第21卷(第3期);全文 * |
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