CN103378395A - E-plane waveguide magic tee with coplanar arms - Google Patents
E-plane waveguide magic tee with coplanar arms Download PDFInfo
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- CN103378395A CN103378395A CN2013102758207A CN201310275820A CN103378395A CN 103378395 A CN103378395 A CN 103378395A CN 2013102758207 A CN2013102758207 A CN 2013102758207A CN 201310275820 A CN201310275820 A CN 201310275820A CN 103378395 A CN103378395 A CN 103378395A
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Abstract
The invention provides an E-plane waveguide magic tee with coplanar arms and applies to the technical field of microwave. The E-plane waveguide magic tee with the coplanar arms comprises a first input/output waveguide, a second input/output waveguide, a third input/output waveguide and a fourth input/output waveguide. The E-plane waveguide magic tee with the coplanar arms is characterized in that the first input/output waveguide, the second input/output waveguide, the third input/output waveguide and the fourth input/output waveguide are arranged on the same plane. The E-plane waveguide magic tee with the coplanar arms brings convenience to processing, assembling and compacting of system connection. In addition, the E-plane waveguide magic tee with the coplanar arms has good power division range balance, phase position balance and isolation performance among ports.
Description
Technical field
The present invention relates to microwave technical field, more particularly, relate to a kind of waveguide evil spirit T.
Background technology
Along with developing rapidly of frequency microwave technology, in order to satisfy various technical needs, people invent and have designed various frequency microwave devices, and magic T then is commonly use in these devices a kind of.Evil spirit T is 4 port devices, usually is combined into by E face knot and H face.Evil spirit T has several key properties: dividing equally the property of power, the i.e. adjacent two mouthfuls of coupling amounts that 3dB is arranged of magic T; The counterpart isolation, namely two of quadrature ports are isolated mutually; Automatic Scheduling Matching, namely after two of quadrature port match, two remaining port Auto-matchings.Since these characteristics, magic T extensive application.Evil spirit T is used to balanced mixer, two signal five equilibriums respectively between two quartz crystals independently.Evil spirit T is used as power splitter, realizes the input signal power five equilibrium.Evil spirit T also is used as impedance bridge, standard phase shifter.In addition, magic T is also in being usually used in antenna feed system.
The magic T of tradition is formed by E-T and H-T splice combinations, as shown in Figure 3.Since structural symmetry, mutually isolation between two ports of quadrature.In addition, in order to eliminate the discontinuity of joint, usually add the elements such as some cones, pin, metallic membrane, realize the coupling of port.Four arms of the magic T of tradition are in 4 directions, and 4 arms are unfavorable for the system integration so not on same plane.The matching elements such as cone, pin, metallic membrane are relatively more difficult processing and assembling also.Then, there is the scholar to propose the folding magic T of E face and the folding magic T of H face, exactly two arms of E face folded into same direction or two arms of H face are folded into same direction, as shown in Figure 4.Like this, make things convenient for system to connect in some occasion, but its 4th arm and remaining 3 arms are not still on same plane.The folding magic T of E face and H face evil spirit T also need to add the coupling that matching element that metallic membrane etc. is difficult to process and assemble is realized port.There is again the scholar to be beneficial to that directional coupler and phase shifter are designed in conjunction to go out novel magic T structure.Because the asymmetry of structure, the merit of the magic T of this structure divides Amplitude balance and phase balance relatively poor.In addition, so the relatively more difficult design of broad-band phase shifter is the limited bandwidth of the magic T of general this structure.Recently there is the scholar to lead TE10-TE20 mould mode converter designs based on the H ground roll and goes out magic T.This evil spirit T by optimizing the H face outline line and realize in position and the size of the Metallic rod of joint area.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, provide a kind of and have coplanar arm, be convenient to process and assemble and be connected, have good merit minute amplitude balance and phase equilibrium with compact systems, the E ground roll with isolation performance between good port is led magic T.
In order to achieve the above object, the present invention adopts following technical scheme: a kind of E ground roll with coplanar arm is led magic T, comprises the first I/O waveguide, the second I/O waveguide, the 3rd I/O waveguide and the 4th I/O waveguide; It is characterized in that: the first I/O waveguide, the second I/O waveguide, the 3rd I/O waveguide and the 4th I/O waveguide setting are at grade.All waveguides of the present invention's evil spirit T all on same plane, are convenient to carry out cascade and are formed large system, also are convenient to be connected with other device.
Described the first I/O waveguide, the second I/O waveguide and the 3rd I/O waveguide are connected to form "T"-shaped device; Described the first I/O waveguide, the second I/O waveguide and the 3rd I/O waveguide are connected to form "T"-shaped device and refer to, the second I/O waveguide and the 3rd I/O waveguide are arranged on the same axis, and the first I/O waveguide is arranged on the vertical direction of the second I/O waveguide and the 3rd I/O waveguide place axis; Described the 4th I/O waveguide is arranged on the top of "T"-shaped device.
Further scheme is: the 4th I/O waveguide is connected with the "T"-shaped device that the first I/O waveguide, the second I/O waveguide and the 3rd I/O waveguide form by microstrip line.
The symmetrical configuration of described the second I/O waveguide and the 3rd I/O waveguide; Described the second I/O waveguide includes half height waveguide segment, waveguide impedance matching section and the standard waveguide port that connects successively with the 3rd I/O waveguide.The structure of the present invention's evil spirit T has symmetry, from the signal that the first I/O waveguide enters, and power five equilibrium between the second I/O waveguide and the 3rd I/O waveguide, and phase phasic difference 180 degree; From the signal that the 4th I/O waveguide is entered, power five equilibrium between the second I/O waveguide and the 3rd I/O waveguide, phase place is identical; Structural symmetry makes magic T that good merit minute amplitude balance and phase equilibrium be arranged.
Be provided with for the waveguide corner cut of eliminating joint discontinuity and realization port match in the joint that the first I/O waveguide, the second I/O waveguide and the 3rd I/O waveguide form.The joint of the second I/O waveguide and the 3rd I/O waveguide has discontinuity, adds the waveguide corner cut and can eliminate the discontinuity of joint, can realize the port match of the first I/O waveguide simultaneously.
Described microstrip line is arranged on the axis of the first I/O waveguide; One end of described microstrip line extend in the 4th I/O waveguide, and the other end extend into the joint that the first I/O waveguide, the second I/O waveguide and the 3rd I/O waveguide form.
Described microstrip line comprises the first coupled section, the first impedance matching section, the second impedance matching section and the second coupled section that connects successively; Described the first coupled section is arranged on the joint that the first I/O waveguide, the second I/O waveguide and the 3rd I/O waveguide form; Described the second coupled section is arranged in the 4th I/O waveguide.The microstrip line segment design of the present invention evil spirit T can realize the port match of the 4th I/O waveguide by the size of adjusting each section.
The present invention possesses following outstanding advantages and effect with respect to prior art:
1, all waveguides of the present invention's evil spirit T are arranged on the same plane, are convenient to processing, be convenient to carry out cascade and form large system in compact systems, also are convenient to be connected with other device;
2, the present invention evil spirit T does not need to add similar cone, metallic membrane, pin etc. and is difficult to the matching element processing and assemble, only realizes the port match of each waveguide by waveguide corner cut, microstrip line and waveguide impedance matching section, is easy to processing and assembling realizes;
3, the present invention's evil spirit T can have very wide bandwidth, has good merit minute amplitude balance and phase equilibrium, and isolates performance between good port.
Description of drawings
Fig. 1 is the structural representation of the present invention's evil spirit T;
Fig. 2 is the cutaway view of the present invention's evil spirit T;
Fig. 3 is the structural representation of traditional magic T;
Fig. 4 is the structural representation of the folding magic T of E face;
Fig. 5 is the reflection coefficient of the first I/O waveguide and signal during from the first I/O waveguide 11 input, and the merit of the second I/O waveguide 12 and the 3rd I/O waveguide 13 is divided coefficient;
Fig. 6 is the reflection coefficient of the 4th I/O waveguide 14 and signal during from the 4th I/O waveguide 14 input, and the merit of the second I/O waveguide 12 and the 3rd I/O waveguide 13 is divided coefficient;
Fig. 7 is isolation characteristic between the first I/O waveguide 11 and the 4th I/O waveguide 14 and the isolation characteristic between the second I/O waveguide 12 and the 3rd I/O waveguide 13;
Wherein, 11 is that the first I/O waveguide, 12 is that the second I/O waveguide, 13 is that the 3rd I/O waveguide, 14 is that the 4th I/O waveguide, 21 is that waveguide impedance matching section, 31 is that waveguide corner cut, 41 is that the first coupled section, 42 is that the first impedance matching section, 43 is that the second impedance matching section, 44 is that the second coupled section, 51 is half height waveguide segment.
Embodiment
The present invention is described in further detail below in conjunction with embodiment, but embodiments of the present invention are not limited to this.
Embodiment
E ground roll of the present invention is led magic T, and its structure as shown in Figure 1; Comprise the first I/O waveguide 11, the second I/O waveguide 12, the 3rd I/O waveguide 13 and the 4th I/O waveguide 14; The first I/O waveguide 11, the second I/O waveguide 12, the 3rd I/O waveguide 13 and the 4th I/O waveguide 14 arrange at grade.All waveguides of the present invention's evil spirit T all on same plane, are convenient to carry out cascade and are formed large system, also are convenient to be connected with other device.
The first I/O waveguide 11, the second I/O waveguide 12 and the 3rd I/O waveguide 13 are connected to form "T"-shaped device; The first I/O waveguide 11, the second I/O waveguide 12 and the 3rd I/O waveguide 13 are connected to form "T"-shaped device and refer to, the second I/O waveguide 12 and the 3rd I/O waveguide 13 are arranged on the same axis, and the first I/O waveguide 11 is arranged on the vertical direction of the second I/O waveguide 12 and the 3rd I/O waveguide 13 place axis.The 4th I/O waveguide 14 is arranged on the top of "T"-shaped device.The symmetrical configuration of the second I/O waveguide 12 and the 3rd I/O waveguide 13.The 4th I/O waveguide 14 is connected with the first I/O waveguide 11, the second I/O waveguide 12 and the "T"-shaped device that the 3rd I/O waveguide 13 forms by microstrip line, as shown in Figure 2.Microstrip line is arranged on the axis of the first I/O waveguide 12; One end of microstrip line extend in the 4th I/O waveguide 14, and the other end extend into the joint that the first I/O waveguide 11, the second I/O waveguide 12 and the 3rd I/O waveguide 13 form.
The structure of evil spirit T has symmetry, from the signal that the first I/O waveguide 11 enters, and power five equilibrium between the second I/O waveguide 12 and the 3rd I/O waveguide 13, and phase phasic difference 180 degree; From the signal that the 4th I/O waveguide 14 is entered, power five equilibrium between the second I/O waveguide 12 and the 3rd I/O waveguide 13, phase place is identical; Structural symmetry makes magic T that good merit minute amplitude balance and phase equilibrium be arranged.Simultaneously, the symmetry of structure, microstrip line put and the optimal design of microstrip line makes between the first I/O waveguide 11 and the 4th I/O waveguide 14 good isolation is arranged, between the second I/O waveguide 12 and the 3rd I/O waveguide 13 good isolation is arranged also.
Microstrip line comprises the first coupled section 41, the first impedance matching section 42, the second impedance matching section 43 and the second coupled section 44 that connects successively; The first coupled section 41 is arranged on the joint that the first I/O waveguide 11, the second I/O waveguide 12 and the 3rd I/O waveguide 13 form; The second coupled section 44 is arranged in the 4th I/O waveguide 14.Microstrip line segment design of the present invention at first by adjusting the size of the first coupled section 41 and the second coupled section 44, is optimized signal coupling; Adjust again the size of the first impedance matching section 42 and the second impedance matching section 43, realize the port match of the 4th I/O waveguide 14.
The second I/O waveguide 12 includes half height waveguide segment 51, waveguide impedance matching section 21 and the standard waveguide port that connects successively with the 3rd I/O waveguide 13.By waveguide impedance matching section 21 half height waveguide segment 51 is transformed to the standard waveguide port.
The joint that forms in the first I/O waveguide 11, the second I/O waveguide 12 and the 3rd I/O waveguide 13 is provided with for the waveguide corner cut 31 of eliminating joint discontinuity and realization port match.The joint that the second I/O waveguide 12 and the 3rd I/O waveguide 13 form has discontinuity, adds waveguide corner cut 31 and eliminates the discontinuity of joint, can realize the port match of the first I/O waveguide 11 simultaneously.The shape of waveguide corner cut 31 and size are carried out emulation by Electromagnetic Simulation software Ansoft High Frequency Structure Simulator adjustment parameter and are determined.The way of realization of waveguide corner cut 31 and shape have a variety of, and the design of waveguide corner cut 31 will realize eliminating discontinuity and the port match of joint on the one hand; On the other hand, waveguide corner cut 31 will have sufficient size to window, and places microstrip line, and realization is connected with the 4th I/O waveguide 14.
The present invention's evil spirit T can be used for multiple occasion.For example: but one, matching connection load in the first I/O waveguide 11 or the 4th I/O waveguide 14, the present invention's evil spirit T can be used as power distributor/synthesizer; This power distributor/synthesizer cascade forms the more power division/comprise network of large route number; Two, the first I/O waveguide 11 of the present invention evil spirit T and the 4th I/O waveguide 14 can obtain from the differential signal of the signal of the second I/O waveguide 12 and the 3rd I/O waveguide 13 inputs with and signal, therefore magic T can be applicable in the feed system of radar or antenna system; Three, the present invention's evil spirit T can be used as primary element, is used in the aspects such as standard phase shifter, impedance bridge, balanced mixer.
The magic T of the below take the work centre frequency as 30GHz describes as an example, the width edge length of the first I/O waveguide 11, the second I/O waveguide 12, the 3rd I/O waveguide 13 and the 4th I/O waveguide 14 is got 7.12mm, narrow edge lengths is got 3.56mm, and then half height waveguide, 51 narrow edge lengths are got 1.78mm.The size of adjusting corner cut 31 by Electromagnetic Simulation software realizes eliminating discontinuity and the port match of joint, and the upper base length that finally obtains the corner cut isosceles trapezoid of corresponding cutaway view Fig. 2 is 1.8mm, and the length of going to the bottom is 2.52mm, and hypotenuse length is 0.86mm.When the reflection coefficient of the first I/O waveguide and signal were inputted from the first I/O waveguide 11, the merit of the second I/O waveguide 12 and the 3rd I/O waveguide 13 divided coefficient as shown in Figure 5.At last, adjust microstrip line the first coupled section 41, the first impedance matching section 42, the second impedance matching section 43 and the second coupled section 44 so that the 4th I/O waveguide realizes coupling, realize simultaneously isolation between the first I/O waveguide 11 and the 4th I/O waveguide 14 and the isolation between the second I/O waveguide 12 and the 3rd I/O waveguide 13.When the reflection coefficient of the 4th I/O waveguide 14 and signal were inputted from the 4th I/O waveguide 14, the merit of the second I/O waveguide 12 and the 3rd I/O waveguide 13 divided coefficient as shown in Figure 6.Isolation characteristic between the port as shown in Figure 7.
Above-described embodiment is the better execution mode of the present invention; but embodiments of the present invention are not restricted to the described embodiments; other any do not deviate from change, the modification done under Spirit Essence of the present invention and the principle, substitutes, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (7)
1. the E ground roll with coplanar arm is led magic T, comprises the first I/O waveguide, the second I/O waveguide, the 3rd I/O waveguide and the 4th I/O waveguide; It is characterized in that: the first I/O waveguide, the second I/O waveguide, the 3rd I/O waveguide and the 4th I/O waveguide setting are at grade.
2. the E ground roll with coplanar arm according to claim 1 is led magic T, it is characterized in that: described the first I/O waveguide, the second I/O waveguide and the 3rd I/O waveguide are connected to form "T"-shaped device; Described the first I/O waveguide, the second I/O waveguide and the 3rd I/O waveguide are connected to form "T"-shaped device and refer to, the second I/O waveguide and the 3rd I/O waveguide are arranged on the same axis, and the first I/O waveguide is arranged on the vertical direction of the second I/O waveguide and the 3rd I/O waveguide place axis; Described the 4th I/O waveguide is arranged on the top of "T"-shaped device.
3. the E ground roll with coplanar arm according to claim 2 is led magic T, it is characterized in that: the 4th I/O waveguide is connected with the "T"-shaped device that the first I/O waveguide, the second I/O waveguide and the 3rd I/O waveguide form by microstrip line.
4. the E ground roll with coplanar arm according to claim 2 is led magic T, it is characterized in that: the symmetrical configuration of described the second I/O waveguide and the 3rd I/O waveguide; Described the second I/O waveguide includes half height waveguide segment, waveguide impedance matching section and the standard waveguide port that connects successively with the 3rd I/O waveguide.
5. the E ground roll with coplanar arm according to claim 4 is led magic T, it is characterized in that: be provided with in the joint that the first I/O waveguide, the second I/O waveguide and the 3rd I/O waveguide form for the waveguide corner cut of eliminating joint discontinuity and realization port match.
6. the E ground roll with coplanar arm according to claim 3 is led magic T, it is characterized in that: described microstrip line is arranged on the axis of the first I/O waveguide; One end of described microstrip line extend in the 4th I/O waveguide, and the other end extend into the joint that the first I/O waveguide, the second I/O waveguide and the 3rd I/O waveguide form.
7. the E ground roll with coplanar arm according to claim 6 is led magic T, it is characterized in that: described microstrip line comprises the first coupled section, the first impedance matching section, the second impedance matching section and the second coupled section that connects successively; Described the first coupled section is arranged on the joint that the first I/O waveguide, the second I/O waveguide and the 3rd I/O waveguide form; Described the second coupled section is arranged in the 4th I/O waveguide.
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229598A (en) * | 2016-07-13 | 2016-12-14 | 西北核技术研究所 | The ultra-compact high-isolation of kW level coplanar evil spirit T and microwave power synthesis method |
| CN109616732A (en) * | 2018-11-05 | 2019-04-12 | 贵州航天电子科技有限公司 | A kind of Planar Magic-T applied to pulse Planar Slot Antenna |
| CN109860971A (en) * | 2019-03-18 | 2019-06-07 | 贵州航天电子科技有限公司 | A kind of Ka frequency range Planar Magic-T |
| CN110085961A (en) * | 2019-04-29 | 2019-08-02 | 中国电子科技集团公司第三十六研究所 | A kind of waveguide magic T structure |
| RU192642U1 (en) * | 2019-07-01 | 2019-09-25 | Акционерное общество "Научно-исследовательский институт Приборостроения имени В.В. Тихомирова" | DOUBLE WAVE TEE |
| RU198720U1 (en) * | 2020-04-03 | 2020-07-23 | Акционерное общество "Научно-исследовательский институт Приборостроения имени В.В. Тихомирова" | WAVEGUIDE DOUBLE TEE |
| CN113193321A (en) * | 2021-05-17 | 2021-07-30 | 西安华腾微波有限责任公司 | One-to-seven-path waveguide power divider |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106229598A (en) * | 2016-07-13 | 2016-12-14 | 西北核技术研究所 | The ultra-compact high-isolation of kW level coplanar evil spirit T and microwave power synthesis method |
| CN106229598B (en) * | 2016-07-13 | 2018-08-14 | 西北核技术研究所 | The coplanar evil spirit T of kW grades of ultra-compact high-isolations and microwave power synthesis method |
| CN109616732A (en) * | 2018-11-05 | 2019-04-12 | 贵州航天电子科技有限公司 | A kind of Planar Magic-T applied to pulse Planar Slot Antenna |
| CN109860971A (en) * | 2019-03-18 | 2019-06-07 | 贵州航天电子科技有限公司 | A kind of Ka frequency range Planar Magic-T |
| CN110085961A (en) * | 2019-04-29 | 2019-08-02 | 中国电子科技集团公司第三十六研究所 | A kind of waveguide magic T structure |
| RU192642U1 (en) * | 2019-07-01 | 2019-09-25 | Акционерное общество "Научно-исследовательский институт Приборостроения имени В.В. Тихомирова" | DOUBLE WAVE TEE |
| RU198720U1 (en) * | 2020-04-03 | 2020-07-23 | Акционерное общество "Научно-исследовательский институт Приборостроения имени В.В. Тихомирова" | WAVEGUIDE DOUBLE TEE |
| CN113193321A (en) * | 2021-05-17 | 2021-07-30 | 西安华腾微波有限责任公司 | One-to-seven-path waveguide power divider |
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