CN103050754B - Microstrip line-coplanar stripline broadband transitional structure - Google Patents
Microstrip line-coplanar stripline broadband transitional structure Download PDFInfo
- Publication number
- CN103050754B CN103050754B CN201210586736.2A CN201210586736A CN103050754B CN 103050754 B CN103050754 B CN 103050754B CN 201210586736 A CN201210586736 A CN 201210586736A CN 103050754 B CN103050754 B CN 103050754B
- Authority
- CN
- China
- Prior art keywords
- microstrip line
- conduction band
- limitedly
- coplanar stripline
- line conduction
- 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.)
- Expired - Fee Related
Links
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Abstract
The invention relates to a microstrip line-coplanar stripline broadband transitional structure, which consists of a microstrip line conduction band, a coplanar stripline, a microstrip line ground plate and a circuit substrate, wherein the microstrip line conduction band is located on the front of the circuit substrate, and the coplanar stripline and the microstrip line ground plate are integrally formed on the back of the circuit substrate; the coplanar stripline and the microstrip line conduction band are stereoscopically and vertically crossed, so that a stereoscopic and vertical intersection is formed; the microstrip line conduction band consists of a microstrip line input/output port, a microstrip line conduction band transmission section, a finite ground microstrip line conduction band transitional section, the stereoscopic and vertical intersection and a finite ground microstrip line conduction band open circuit end which are sequentially arranged; the microstrip line ground plate is provided with a finite ground microstrip line ground plate transitional section and a finite ground microstrip line ground plate; one end of the coplanar stripline is a coplanar stripline input/output port, and the other end of the coplanar stripline is a coplanar stripline short circuit end. The microstrip line-coplanar stripline broadband transitional structure has the advantages of small size, compact circuit structure and little high-frequency insertion loss.
Description
Technical field
The present invention relates to microwave passive component technical field, particularly a kind of broadband transition structure of microstrip line coplanar stripline.
Background technology
In field of antenna, dipole antenna belongs to balanced type antenna, and dipole antenna needs balanced transmission line such as coplanar stripline to carry out feed.Coplanar stripline is a kind of one side transmission line of balance, has size little, is easy to the advantage such as integrated.And signal transmssion line the most frequently used in microwave current integrated circuit (IC) design is microstrip line, this is a kind of non-balanced transmission line, and therefore we must carry out the conversion between balanced-unbalanced transmission line when designing integrated circuit system.Based on this background, we need to design, and a kind of loss is low, size is little, the broadband transition structure of microstrip line coplanar stripline.
Have the bibliographical information transition structure of microstrip line to coplanar stripline:
Document 1 (Y.Qian and T.Itoh, A broadband uniplanar microstrip-to-CPS transition, 1997Asia Pacific Microwave Conf.Dig., 1997:609-612) use T-section power splitter and 180 degree of phase shifters to achieve the transition structure of microstrip line to coplanar stripline.
Document 2 (Y.-H.Suh and K.Chang, A wideband coplanar stripline to microstrip transition, IEEE Microwave Wireless Compon.Lett., 2001 (11): 28-29) in, microstrip line realizes to the transition structure of coplanar stripline based on field matching principle.
Document 3 (W.-H.Tu and K.Chang, Wide-band microstrip-to-coplanar stripline/slotlinetransitions, IEEE Trans.Microw.Theory Tech., 2006 (54): 1084-1089) be use Chebyshev transformation device and the fan-shaped matching stub of quarter-wave to realize the transition structure of microstrip line to coplanar stripline.
(1) document 1,2, the three kinds of microstrip lines proposed in 3 are larger at the insertion loss of high frequency treatment to the transition structure of coplanar stripline.
(2) document 2, in 3, microstrip line is to the transition structure of coplanar stripline owing to employing a matching section and impedance matching section, has the shortcoming that size is large.
Summary of the invention
The object of this invention is to provide the broadband transition structure of microstrip line-coplanar stripline that a kind of size is little, circuit structure is compact, high frequency insertion loss is little.
Realizing technical solution of the present invention is: a kind of broadband transition structure of microstrip line coplanar stripline, in comprising microstrip line conduction band, coplanar stripline, microstrip line, circuit substrate, microstrip line conduction band and microstrip line form microstrip line, wherein microstrip line conduction band is positioned at the front of circuit substrate, coplanar stripline and the one-body molded reverse side being positioned at circuit substrate of microstrip line; Coplanar stripline and microstrip line conduction band system vertical intersect, and groove and the microstrip line conduction band of coplanar stripline form system vertical infall.
The broadband transition structure of microstrip line coplanar stripline of the present invention, described microstrip line conduction band comprise arrange in turn microstrip line input/output port, microstrip line conduction band span line, limitedly microstrip line conduction band changeover portion, system vertical infall, limitedly microstrip line conduction band open end; Wherein microstrip line conduction band span line one end is connected with microstrip line input/output port, and the other end is connected with limitedly microstrip line conduction band changeover portion, and width is consistent with microstrip line input/output port; Limitedly microstrip line conduction band changeover portion is from the one end be connected with microstrip line conduction band span line to system vertical infall, and by wide to narrow even gradual change; Limitedly microstrip line conduction band open end from system vertical infall to the end of microstrip line conduction band.
The broadband transition structure of microstrip line coplanar stripline of the present invention, described coplanar stripline is positioned at the centre of limitedly microstrip line changeover portion and limitedly microstrip line, and perpendicular to limitedly microstrip line changeover portion and limitedly microstrip line, one end of coplanar stripline is coplanar stripline input/output port, and the other end after system vertical infall is coplanar stripline short-circuit end.
The broadband transition structure of microstrip line coplanar stripline of the present invention, described microstrip line circuit substrate reverse side and along the direction identical with microstrip line conduction band: wherein microstrip line is set to limitedly microstrip line changeover portion with the limitedly vertical corresponding part of microstrip line conduction band changeover portion, and microstrip line is set to limitedly microstrip line with the limitedly vertical corresponding part of microstrip line conduction band open end.
The broadband transition structure of microstrip line-coplanar stripline of the present invention, described limitedly microstrip line conduction band changeover portion from microstrip line conduction band span line to system vertical infall by wide to narrow even gradual change, accordingly limitedly microstrip line changeover portion also by wide to narrow even gradual change.
The broadband transition structure of microstrip line coplanar stripline of the present invention, described limitedly microstrip line conduction band open end and vertical corresponding limitedly microstrip line thereof are all rectangle, and limitedly microstrip line extends to the edge of circuit substrate to system vertical infall opposite direction straight line.
The present invention compared with prior art, its remarkable advantage:
(1) intersection region of the present invention has the effect of patten transformation and impedance transformation, without the need to making use matching section and impedance matching section;
(2) can physical dimension be reduced, make simple circuit compact;
(3) there is the advantage that high frequency insertion loss is low.
Accompanying drawing explanation
Fig. 1 is the structural representation of the broadband transition structure of microstrip line coplanar stripline of the present invention.
Fig. 2 is the physical dimension schematic diagram of the embodiment 1 of the broadband transition structure of microstrip line coplanar stripline of the present invention.
Fig. 3 is the S parameter analogous diagram of the embodiment 1 of the broadband transition structure of microstrip line coplanar stripline of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
Composition graphs 1, the front of circuit substrate is diagonal line hatches filling part in the drawings, and the reverse side of circuit substrate is dot-hatched filling part.The broadband transition structure of this microstrip line-coplanar stripline, comprise microstrip line conduction band 1, coplanar stripline 2, microstrip line 3, circuit substrate 4, microstrip line conduction band 1 and microstrip line 3 form microstrip line, wherein microstrip line conduction band 1 is positioned at the front of circuit substrate 4, coplanar stripline 2 and the one-body molded reverse side being positioned at circuit substrate 4 of microstrip line 3; Coplanar stripline 2 and microstrip line conduction band 1 system vertical intersect, and groove 21 and the microstrip line conduction band 1 of coplanar stripline 2 form system vertical infall 5.
The broadband transition structure of microstrip line coplanar stripline of the present invention, described microstrip line conduction band 1 comprise arrange in turn microstrip line input/output port 10, microstrip line conduction band span line 11, limitedly microstrip line conduction band changeover portion 12, system vertical infall 5, limitedly microstrip line conduction band open end 13; Wherein microstrip line conduction band span line 11 one end is connected with microstrip line input/output port 10, and the other end is connected with limitedly microstrip line conduction band changeover portion 12, and width is consistent with microstrip line input/output port 10; Limitedly microstrip line conduction band changeover portion 12 is from the one end be connected with microstrip line conduction band span line 11 to system vertical infall 5, and by wide to narrow even gradual change; Limitedly microstrip line conduction band open end 13 from system vertical infall 5 to the end of microstrip line conduction band 1.
The broadband transition structure of microstrip line coplanar stripline of the present invention, described coplanar stripline 2 is positioned at the centre of limitedly microstrip line changeover portion 32 and limitedly microstrip line 33, and perpendicular to limitedly microstrip line changeover portion 32 and limitedly microstrip line 33, one end of coplanar stripline 2 is coplanar stripline input/output port 22, and the other end after system vertical infall 5 is coplanar stripline short-circuit end 23.
The broadband transition structure of microstrip line coplanar stripline of the present invention, described microstrip line 3 circuit substrate 4 reverse side and along the direction identical with microstrip line conduction band 1: wherein microstrip line 3 is set to limitedly microstrip line changeover portion 32 with the limitedly vertical corresponding part of microstrip line conduction band changeover portion 12, and microstrip line 3 is set to limitedly microstrip line 33 with the limitedly vertical corresponding part of microstrip line conduction band open end 13.
The broadband transition structure of microstrip line coplanar stripline of the present invention, described limitedly microstrip line conduction band changeover portion 12 from microstrip line conduction band span line 11 to system vertical infall 5 by wide to narrow even gradual change, accordingly limitedly microstrip line changeover portion 32 also by wide to narrow even gradual change.
The broadband transition structure of microstrip line coplanar stripline of the present invention, described limitedly microstrip line conduction band open end 13 and vertical corresponding limitedly microstrip line 33 thereof are all rectangle, and limitedly microstrip line 33 extends to the edge of circuit substrate 4 to system vertical infall 5 opposite direction straight line.System vertical infall 5 is near the limitedly microstrip line conduction band open end 13 of microstrip line conduction band 1, and the coplanar stripline short-circuit end 23 of close coplanar stripline 2.
The course of work of the broadband transition structure of microstrip line-coplanar stripline of the present invention is as follows: electromagnetic signal enters microstrip line 1 from microstrip line input/output port 10, system vertical infall 5 is arrived through microstrip line conduction band span line 11, limitedly microstrip line conduction band changeover portion 12, be coupled on coplanar stripline 2, be transferred to coplanar stripline input/output port 22 along coplanar stripline 2.Same, when electromagnetic signal enters coplanar stripline 2 from coplanar stripline input/output port 22, microstrip line 1 is coupled to through system vertical infall 5, be transferred to microstrip line input/output port 10 along limitedly microstrip line conduction band changeover portion 12, microstrip line conduction band span line 11, also can realize the transmission of electromagnetic signal.By regulating the size of limitedly microstrip line conduction band open end 13 length, coplanar stripline short-circuit end 23 length and limitedly microstrip line changeover portion 32, position and the transiting performance of passband can be regulated.
Structurally, the width of microstrip line input/output port 10 is determined according to the impedance of port, is generally designed to the width that 50 ohm microstrip are corresponding.Live width and the groove width of coplanar stripline input/output port 22 are determined according to port Impedance, generally be designed to live width corresponding to high characteristic impedance (as 155 ohm) and groove width, live width and the groove width of the other parts of coplanar stripline 2 keep consistent with coplanar strip shape line cap.Coplanar stripline 2 and microstrip line 1 form system vertical infall 5, and crossing angle is generally 90 degree, and the microstrip line conduction band width of system vertical infall 5, in order to ensure that best Energy Coupling has a determined value, is generally different from microstrip line input/output port 10.Limitedly microstrip line 33 width and limitedly microstrip line conduction band open end 13 width keep consistent with system vertical infall 5.Limitedly microstrip line conduction band changeover portion 12 from microstrip line conduction band span line 11 to system vertical infall 5 by wide to narrow even gradual change, accordingly limitedly microstrip line changeover portion 32 also by wide to narrow even gradual change, to ensure the impedance matching of realizing circuit.
In manufacture, by printed-circuit board manufacturing technology, required metal pattern is formed to the circuit in circuit substrate front and the circuit fabrication at the back side.
Below in conjunction with specific embodiment, the present invention is described in further detail.
Embodiment 1
Composition graphs 2, Fig. 3, to be operated in the broadband transition structure of the microstrip line-coplanar stripline of 6.3-18GHz, circuit substrate 4 relative dielectric constant of employing is 2.33, and thickness is 0.508mm.Microstrip line input/output port 10 characteristic impedance is 50 ohm, the width w1 of microstrip line input/output port 10 is 1.55mm, the characteristic impedance of coplanar stripline input/output port 22 is 155 ohm, and the live width w0 of coplanar stripline input/output port 22 correspondence is 1mm, groove width s is 0.2mm.At system vertical infall 5 in order to make the Energy Coupling of microstrip line 1 in coplanar stripline 2, obtaining system vertical infall 5 microstrip line conduction band width w4 by simulation software HFSS is 0.9mm.Limitedly microstrip line changeover portion 32 length L0 is 3.4mm, is that evenly to fade to width w3 be 2.8mm to 5mm by width w2.Limitedly microstrip line 33 width w5 is 1.5mm.
Limitedly the length of microstrip line conduction band open end 13 and coplanar stripline short-circuit end 23 has the effect of detail coupling: limitedly the length L1 of microstrip line conduction band open end 13 correspondence is 4mm, the limitedly microstrip waveguide wavelength that namely 1/4 centre frequency is corresponding; The length L2 of coplanar stripline short-circuit end 23 correspondence is 6mm, the coplanar stripline guide wavelength that 1/4 centre frequency is corresponding.
Fig. 3 is the S parameter analogous diagram of the broadband transition structure of the present embodiment microstrip line-coplanar stripline, as can be seen from the figure, in 6.3-18GHz frequency range, insertion loss is less than 3dB, feed port reflection coefficient is less than-13dB, and relative bandwidth is 96%, has the advantage that high frequency insertion loss is low.
Claims (5)
1. the broadband transition structure of microstrip line-coplanar stripline, it is characterized in that: comprise microstrip line conduction band (1), coplanar stripline (2), microstrip line (3), circuit substrate (4), microstrip line conduction band (1) and microstrip line (3) form microstrip line, wherein microstrip line conduction band (1) is positioned at the front of circuit substrate (4), coplanar stripline (2) and the one-body molded reverse side being positioned at circuit substrate (4) of microstrip line (3); Coplanar stripline (2) and microstrip line conduction band (1) system vertical intersect, and groove (21) and the microstrip line conduction band (1) of coplanar stripline (2) form system vertical infall (5); Described coplanar stripline (2) is positioned at the centre of limitedly microstrip line changeover portion (32) and limitedly microstrip line (33), and perpendicular to limitedly microstrip line changeover portion (32) and limitedly microstrip line (33), one end of coplanar stripline (2) is coplanar stripline input/output port (22), and the other end after system vertical infall (5) is coplanar stripline short-circuit end (23).
2. the broadband transition structure of microstrip line-coplanar stripline according to claim 1, is characterized in that: described microstrip line conduction band (1) comprise arrange in turn microstrip line input/output port (10), microstrip line conduction band span line (11), limitedly microstrip line conduction band changeover portion (12), system vertical infall (5), limitedly microstrip line conduction band open end (13); Wherein microstrip line conduction band span line (11) one end is connected with microstrip line input/output port (10), the other end is connected with limitedly microstrip line conduction band changeover portion (12), and width is consistent with microstrip line input/output port (10); Limitedly microstrip line conduction band changeover portion (12) is from the one end be connected with microstrip line conduction band span line (11) to system vertical infall (5), and by wide to narrow even gradual change; Limitedly microstrip line conduction band open end (13) from system vertical infall (5) to the end of microstrip line conduction band (1).
3. the broadband transition structure of microstrip line-coplanar stripline according to claim 1 and 2, it is characterized in that: described microstrip line (3) circuit substrate (4) reverse side and along the direction identical with microstrip line conduction band (1): wherein microstrip line (3) is set to limitedly microstrip line changeover portion (32) with the limitedly vertical corresponding part of microstrip line conduction band changeover portion (12), and microstrip line (3) is set to limitedly microstrip line (33) with the limitedly vertical corresponding part of microstrip line conduction band open end (13).
4. the broadband transition structure of microstrip line-coplanar stripline according to claim 3, it is characterized in that: described limitedly microstrip line conduction band changeover portion (12) from microstrip line conduction band span line (11) to system vertical infall (5) by wide to narrow even gradual change, accordingly limitedly microstrip line changeover portion (32) also by wide to narrow even gradual change.
5. the broadband transition structure of microstrip line-coplanar stripline according to claim 3, it is characterized in that: described limitedly microstrip line conduction band open end (13) and vertical corresponding limitedly microstrip line (33) thereof are all rectangle, and limitedly microstrip line (33) extends to the edge of circuit substrate (4) to system vertical infall (5) reverse linear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210586736.2A CN103050754B (en) | 2012-12-30 | 2012-12-30 | Microstrip line-coplanar stripline broadband transitional structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210586736.2A CN103050754B (en) | 2012-12-30 | 2012-12-30 | Microstrip line-coplanar stripline broadband transitional structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103050754A CN103050754A (en) | 2013-04-17 |
| CN103050754B true CN103050754B (en) | 2014-12-17 |
Family
ID=48063315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210586736.2A Expired - Fee Related CN103050754B (en) | 2012-12-30 | 2012-12-30 | Microstrip line-coplanar stripline broadband transitional structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103050754B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103441318B (en) * | 2013-08-01 | 2016-09-21 | 南京理工大学 | Based on microstrip line to coplanar stripline super-broadband graded ground barron device |
| CN106501840B (en) * | 2016-11-13 | 2023-04-11 | 中国科学院近代物理研究所 | Detector for measuring shape of longitudinal beam cluster of proton heavy ion beam |
| CN112510333A (en) * | 2020-11-25 | 2021-03-16 | 安徽四创电子股份有限公司 | Multilayer board cross wiring network |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4825220A (en) * | 1986-11-26 | 1989-04-25 | General Electric Company | Microstrip fed printed dipole with an integral balun |
| US6023210A (en) * | 1998-03-03 | 2000-02-08 | California Institute Of Technology | Interlayer stripline transition |
| JP2005223875A (en) * | 2004-01-09 | 2005-08-18 | Asahi Glass Co Ltd | Transmission line converter |
| CN102522618A (en) * | 2011-12-29 | 2012-06-27 | 北京理工大学 | Active left-handed transmission line formed by lumped element and diode |
| CN203119073U (en) * | 2012-12-30 | 2013-08-07 | 南京理工大学 | Microstrip line-coplanar stripline broadband transition structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100960044B1 (en) * | 2008-10-21 | 2010-05-31 | 국방과학연구소 | Resonator with 3-dimensional DGSdefected ground structure in transmission line |
-
2012
- 2012-12-30 CN CN201210586736.2A patent/CN103050754B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4825220A (en) * | 1986-11-26 | 1989-04-25 | General Electric Company | Microstrip fed printed dipole with an integral balun |
| US6023210A (en) * | 1998-03-03 | 2000-02-08 | California Institute Of Technology | Interlayer stripline transition |
| JP2005223875A (en) * | 2004-01-09 | 2005-08-18 | Asahi Glass Co Ltd | Transmission line converter |
| CN102522618A (en) * | 2011-12-29 | 2012-06-27 | 北京理工大学 | Active left-handed transmission line formed by lumped element and diode |
| CN203119073U (en) * | 2012-12-30 | 2013-08-07 | 南京理工大学 | Microstrip line-coplanar stripline broadband transition structure |
Non-Patent Citations (1)
| Title |
|---|
| Ultra-Wideband Crossover Using Microstrip-to-Coplanar Waveguide Transitions;A.Abbosh et al;《IEEE MICROWAVE AND WIRELESS COMONENTS LETTERS》;20121031;第22卷(第10期);第500-502页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103050754A (en) | 2013-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105789802B (en) | A kind of ultra wide band balun based on novel interconnection architecture | |
| CN206864596U (en) | A kind of transition structure of millimeter wave differential microstrip to rectangular waveguide | |
| CN106654497B (en) | Minimized wide-band slow wave half module substrate integrated wave guide coupler and its design method | |
| CN104393390A (en) | Compact plane branch coupler for single-pass or double-pass band | |
| CN103050754B (en) | Microstrip line-coplanar stripline broadband transitional structure | |
| CN104767022B (en) | New 90 ° of integrated couplers of ultra-wideband | |
| CN105304985A (en) | Broadband band-pass filter based on seven-mode resonator | |
| CN101694898A (en) | Bimodule annular resonant cavity band-pass filter with direct feed planar structure | |
| CN105633521A (en) | Dielectric adjustable thin film based microwave ferrite circulator | |
| CN201820868U (en) | Ultra-wideband (UWB) band-pass filter using loaded stepped impedance resonator | |
| CN104078733B (en) | SIW circulator | |
| CN206412449U (en) | A kind of ultra wide band Wilkinson power splitters loaded based on parasitic element | |
| CN105789810A (en) | Broadband halfmode corrugated substrate integrated waveguide coupler and design method thereof | |
| CN111540992B (en) | Miniaturized circulator circuit and circulator composed of same | |
| CN106876855A (en) | A kind of Mini Microstrip broadband work(clutch | |
| CN101102003A (en) | Any dual-frequency band 3dB branch directional coupler | |
| Zhang et al. | Compact branch-line coupler using uniplanar spiral based CRLH-TL | |
| CN203119073U (en) | Microstrip line-coplanar stripline broadband transition structure | |
| CN201060919Y (en) | Arbitrarily dual-frequency band 3dB branch directional coupler | |
| CN110061336A (en) | Four power splitter of integral substrate gap waveguide of encapsulation | |
| CN203895577U (en) | Band pass filter based on one third equilateral triangle substrate integration waveguide | |
| CN105655674A (en) | Zero point adjustable microstrip filter | |
| CN114784475A (en) | Millimeter wave waveguide-suspended microstrip probe transition structure with microstrip filter branches | |
| CN113013566B (en) | Switchable microstrip double balun | |
| Moyra et al. | Design of 10 dB branch line coupler by using DGS |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141217 Termination date: 20161230 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |