CN106128244A - A kind of education experiment hybrid ring circuit - Google Patents
A kind of education experiment hybrid ring circuit Download PDFInfo
- Publication number
- CN106128244A CN106128244A CN201610739614.0A CN201610739614A CN106128244A CN 106128244 A CN106128244 A CN 106128244A CN 201610739614 A CN201610739614 A CN 201610739614A CN 106128244 A CN106128244 A CN 106128244A
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- China
- Prior art keywords
- hybrid ring
- ring circuit
- joint
- port
- wire
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/06—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
- G09B23/18—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism
- G09B23/183—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for electricity or magnetism for circuits
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- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Mathematical Physics (AREA)
- Mathematical Analysis (AREA)
- Mathematical Optimization (AREA)
- Algebra (AREA)
- Pure & Applied Mathematics (AREA)
- Educational Administration (AREA)
- Computational Mathematics (AREA)
- Business, Economics & Management (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Instructional Devices (AREA)
Abstract
The invention discloses a kind of education experiment hybrid ring circuit, including standard hybrid ring circuit, connecting lead-in wire and joint at the port of standard hybrid ring circuit, the lead-in wire of every Single port and n times that phase shift sum is 180 ° of joint introducing, n is the natural number more than or equal to 1.Draw, by the method for simulation calculation, the electrical length that the n times of phase shift of 180 ° is corresponding, obtain port pins length and joint according to the electrical length obtained.Eliminate the hybrid ring circuit middle port lead-in wire introducing with the joint impact on phase characteristic demonstrating effect, it is achieved experimental demonstration effect is consistent with hybrid ring principle.
Description
Technical field
The present invention relates to education experiment field, particularly relate to a kind of education experiment hybrid ring circuit.
Background technology
In colleges and universities' Electronics and Information Engineering class specialty correlated curriculum education experiment activity, for enabling student to hybrid ring
Overall permanence have and intuitively and comprehensively recognize, need hybrid ring is carried out the demonstration of amplitude and phase characteristic.At education experiment
In design with hybrid ring circuit, need to introduce lead-in wire and joint and hybrid ring port is drawn, be connected to test instrunment and carry out reality
Test.The introducing of lead-in wire and joint is little on the impact of education experiment amplitude characteristic demonstrating effect, but can affect drilling of phase characteristic
Show effect, be mainly reflected in the following aspects:
(1) port pins and joint introduce insertion phase shift.
(2) introduce inserts the experimental demonstration effect that phase shift can affect the phase characteristic of hybrid ring circuit.
(3) if port pins and joint design are unreasonable, experimental demonstration effect will be unable to correctly reflect hybrid ring circuit
The phase characteristic of itself.
(4) inconsistent with principle because of experimental demonstration effect, student can not have comprehensive and correct understanding, no to hybrid ring
Can effectively reach education experiment effect.
Summary of the invention
The purpose of the present invention is contemplated to solve the problems referred to above, it is provided that a kind of education experiment hybrid ring circuit, eliminates mixed
The introducing of cyclization circuit middle port lead-in wire and the joint impact on phase characteristic demonstrating effect, it is achieved demonstrating effect is former with hybrid ring
Manage consistent.Thus ensure that student has comprehensive and correct understanding to hybrid ring principle, it is ensured that the effect of experiment.
To achieve these goals, the present invention adopts the following technical scheme that
A kind of education experiment hybrid ring circuit, including standard hybrid ring circuit, the port of described standard hybrid ring circuit
Connecting leaded and joint, the lead-in wire of every Single port and n times that phase shift sum is 180 ° of joint introducing, n is more than or equal to 1
Natural number.
Drawing, by the method for simulation calculation, the electrical length that the n times of phase shift of 180 ° is corresponding, the electrical length according to obtaining obtains
Port pins length and joint.
Preferably, the lead-in wire of every Single port and the phase shift sum of joint introducing are 180 °.
Beneficial effects of the present invention:
It is an advantage of the invention that it provides a kind of education experiment hybrid ring circuit, eliminate hybrid ring circuit middle port lead-in wire
The introducing with the joint impact on phase characteristic demonstrating effect, it is achieved experimental demonstration effect is consistent with hybrid ring principle.Thus
Ensure that student has comprehensive and correct understanding to hybrid ring principle, it is ensured that the effect of experiment.
Accompanying drawing explanation
Fig. 1 is 180 ° of hybrid ring symbols；
Fig. 2 is 180 ° of hybrid rings of standard；
Fig. 3 is education experiment hybrid ring circuit.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
A kind of education experiment hybrid ring circuit, including standard hybrid ring circuit, the port at standard hybrid ring circuit connects
Connecting lead-in wire and joint, the lead-in wire of every Single port and n times that phase shift sum is 180 ° of joint introducing, n is oneself more than or equal to 1
So number.
The present embodiment is described in detail as a example by 180 ° of hybrid rings.
Hybrid ring in the present invention can be but not limited to 180 ° of hybrid rings.As it is shown in figure 1, standard hybrid ring is a kind of four
Port network, has 180 ° of phase shifts between its two output ports.Such as Fig. 2 (shorter drawing in figure Plays hybrid ring port
Line is to draw for convenience of explanation, and it is a length of 0 years old) shown in, when port 1 input signal, arrive the two paths of signals constant amplitude of port 2
Homophase, port 2 has output, delayed phase 90 °；Arriving the two paths of signals constant amplitude homophase of port 3, port 3 has output, delayed phase
90°；The two paths of signals constant amplitude arriving port 4 is anti-phase, and port 4 is without output.Thus, it is added to the signal of 1 port, will be existed equably
2 ports and 3 port subdivisions are two in-phase components, and phase shift is 90 °, and port 4 is as isolated port.
Fig. 3 is the technical schematic diagram of education experiment hybrid ring circuit.It is divided into three parts: standard hybrid ring, lead-in wire
And joint.Hybrid ring port is drawn by lead-in wire and joint, in order to is connected to test instrunment and carries out experiment.Owing to hybrid ring port draws
Line and the introducing of joint, more signal will be walked Li (i is 1,2,3 or 4) electrical length at i port and by Instrument observation, and therefore could carry
Carry out certain phase shift.When using measuring instrument to measure the phase shift between two ports of hybrid ring in joint location, two ports
Lead-in wire and the phase shift that introduces of joint will cause the experimental demonstration effect cannot be consistent with the standard hybrid ring of Fig. 1, Fig. 2.
One education experiment hybrid ring circuit of the present invention, designs lead-in wire and joint by the method for simulation calculation, it is ensured that
The phase shift sum that the lead-in wire of either port and joint introduce is 180 °, i.e. L1=L2=L3=L4 and be half-wavelength.So when
Using measuring instrument when joint location measures the phase shift between hybrid ring any two port, two lead-in wires and two joints draw
The phase shift sum entered ensures that to be 360 °, is equivalent to add a wavelength on the basis of standard hybrid ring.Therefore, end
The impact of phase characteristic demonstrating effect will be eliminated by the phase shift that mouth lead-in wire and joint introduce.Thus ensure experimental demonstration effect
Consistent with hybrid ring principle, it is ensured that student has comprehensive and correct understanding to hybrid ring principle, it is ensured that the effect of experiment.
Although the detailed description of the invention of the present invention is described by the above-mentioned accompanying drawing that combines, but not the present invention is protected model
The restriction enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme, and those skilled in the art are not
Need to pay various amendments or deformation that creative work can make still within protection scope of the present invention.
Claims (3)
1. an education experiment hybrid ring circuit, is characterized in that, including standard hybrid ring circuit, at standard hybrid ring circuit
Every Single port connects upper lead-in wire and joint, and the lead-in wire of every Single port and n times that phase shift sum is 180 ° of joint introducing, n is big
In the natural number equal to 1.
2. a kind of education experiment hybrid ring circuit, be is characterized in that, drawn by the method for simulation calculation
The electrical length that the n times of phase shift of 180 ° is corresponding, obtains port pins length and joint according to the electrical length obtained.
3. a kind of education experiment hybrid ring circuit, is characterized in that, described standard hybrid ring circuit is root
Dielectric constant design according to characteristic frequency, wavelength and the printed board material that used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610739614.0A CN106128244A (en) | 2016-08-27 | 2016-08-27 | A kind of education experiment hybrid ring circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610739614.0A CN106128244A (en) | 2016-08-27 | 2016-08-27 | A kind of education experiment hybrid ring circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106128244A true CN106128244A (en) | 2016-11-16 |
Family
ID=57274810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610739614.0A Pending CN106128244A (en) | 2016-08-27 | 2016-08-27 | A kind of education experiment hybrid ring circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106128244A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004082168A1 (en) * | 2003-03-13 | 2004-09-23 | Excem | Method and device for transmission without crosstalk |
| CN101950841A (en) * | 2010-10-22 | 2011-01-19 | 电子科技大学 | Miniaturized mixed ring based on composite transmission line structure |
| CN102130662A (en) * | 2010-10-20 | 2011-07-20 | 许河秀 | Fractal and composite right/left-handed transmission line-based miniature double-frequency microstrip rat-race coupler |
| CN105486932A (en) * | 2015-12-24 | 2016-04-13 | 河南师范大学 | 180 degree mixed ring dielectric constant measurement device |
-
2016
- 2016-08-27 CN CN201610739614.0A patent/CN106128244A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004082168A1 (en) * | 2003-03-13 | 2004-09-23 | Excem | Method and device for transmission without crosstalk |
| CN102130662A (en) * | 2010-10-20 | 2011-07-20 | 许河秀 | Fractal and composite right/left-handed transmission line-based miniature double-frequency microstrip rat-race coupler |
| CN101950841A (en) * | 2010-10-22 | 2011-01-19 | 电子科技大学 | Miniaturized mixed ring based on composite transmission line structure |
| CN105486932A (en) * | 2015-12-24 | 2016-04-13 | 河南师范大学 | 180 degree mixed ring dielectric constant measurement device |
Non-Patent Citations (1)
| Title |
|---|
| 王文祥: "《微波工程技术》", 30 April 2009, 国防工业出版社 * |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161116 |