CN104836009A - Large-power microwave rectangular waveguide directional coupler - Google Patents
Large-power microwave rectangular waveguide directional coupler Download PDFInfo
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- CN104836009A CN104836009A CN201510267998.6A CN201510267998A CN104836009A CN 104836009 A CN104836009 A CN 104836009A CN 201510267998 A CN201510267998 A CN 201510267998A CN 104836009 A CN104836009 A CN 104836009A
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Abstract
The invention discloses a large-power microwave rectangular waveguide directional coupler. Aiming at an integral-coupling structure, the coupler employs a two-stage coupling mode, achieves the enlarging of the power capacity under the condition that the integral coupling degree is not changed, and improves the peak power. Meanwhile, two-stage directional coupling structures can cooperate with each other, and the changes of the coupling degree curves of the two-stage directional coupling structures are opposite to each other and can achieve positive-negative cancellation after being stacked together, thereby enabling the passband fluctuation of the final integral coupling degree curve to be very flat. Therefore, the integral coupling degree curve is superior to a coupling degree curve at any stage. Meanwhile, the coupler employs a design of double-row elliptical holes. The shorter the distances from the centers of the elliptical holes to a waveguide narrow edge are, the less the coupling degree is, thereby increasing the sizes of the coupling holes, i.e., elliptical holes. The coupler at the first stage can bear a higher power capacity, and the probability that the coupling holes of the coupler at the first stage strike a light is reduced.
Description
Technical field
The invention belongs to microwave device technology field, more specifically say, relate to a kind of HIGH-POWERED MICROWAVES rectangular waveguide directional coupler.This directional coupler can use with microwave power measurement system support, within the scope can measured to measuring system with the fraction power extracting HIGH-POWERED MICROWAVES, accurately to measure and to analyze.
Background technology
Microwave directive coupler is one of element the most frequently used in microwave system, especially in microwave power measurement system, often need to utilize directional coupler that power signal is coupled within the scope that measuring system can measure, then signal is accurately measured and analyzes.
HIGH-POWERED MICROWAVES directional coupler common is at present divided into coaxial line directional coupler and rectangular waveguide directional coupler two class.Coaxial line directional coupler adopts coaxial line to be major-minor line, its bandwidth of operation is usually very wide, and the N-type coaxial interface of standard can directly be connected with test macro, and overall structure is relatively little, test very convenient, but its peak power is difficult to the requirement meeting MW rank.Rectangular waveguide directional coupler mainly adopts rectangular waveguide to be major-minor line, and rectangular waveguide is inner usually using air as medium, and rectangular waveguide carries out coupling power by the gap on common wall or aperture.
Name is called that the technology disclosed in " design of S-band high power rectangular waveguide directional coupler " (volume the 4th phase in " electronic measurement technique " April the 34th in 2011, P50-52) namely belongs to rectangular waveguide directional coupler, this rectangle fluctuation directional coupler take air as medium, and major-minor line is rectangular waveguide.Two rectangular waveguide common walls have been opened single 10 circular holes, and the incident power of main line couples power to the coupling port of by-pass by circular hole.The degree of coupling of 10 circular holes designs according to chebyshev function, and object is to present good directivity in whole wave band.In order to be connected with external waveguide, by-pass is connected with coupling port by bending waveguide, places matching materials inside isolated port.For structure described in this article: frequency range is S-band (1.72GHz ~ 2.61GHz), and the degree of coupling is-49.3 ~-50.3dB, and passband fluctuation is less than 1dB, and directivity is less than-36dB.The centre distance Narrow Wall of Waveguide back gauge x=0.235a of each circular hole, wherein a is the inwall broadside (a=109.22mm) of rectangular waveguide.Minimum Circularhole diameter is 7mm.Although this kind of directional coupler shows well when cold survey, when carrying out heat and surveying experiment, when input peak power reaches 2MW, can there is spark phenomenon in this directional coupler inside, do not meet the index request of peak power 2MW.And this directional coupler total length is 1191mm, and coupling port is rectangular waveguide port, and not only length is long, and very inconvenient test, therefore, this directional coupler does not meet the designing requirement of HIGH-POWERED MICROWAVES rectangular waveguide directional coupler.
Applicant is at " HIGH-POWERED MICROWAVES directional coupler power capacity promotes and Miniaturization Research " (2014) (the virgin tinkling of pieces of jade of counselor, author Luo Chunjie) Master's thesis in, applicant proposed a kind of HIGH-POWERED MICROWAVES directional coupler of two-stage coupled structure, first order directional coupler proposes employing two and arranges the coupled structure that elliptical aperture waveguide turns waveguide, the second level adopts waveguide to turn waveguide diesis crack structure, but its degree of coupling passband fluctuation is comparatively large, to be improved; In addition, test port connects complicated, is inconvenient to test.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of HIGH-POWERED MICROWAVES rectangular waveguide directional coupler is provided, under the prerequisite meeting the degree of coupling and directivity index in frequency band range, improve the peak power of directional coupler, thus reach can with microwave power measurement system support, high power signals is coupled within scope that measuring system can measure, so that carry out accurate analysis and measurement to HIGH-POWERED MICROWAVES signal, and effectively improve its measuring accuracy, expand the object of its range of application.
For achieving the above object, HIGH-POWERED MICROWAVES rectangular waveguide directional coupler of the present invention, is characterized in that, comprising:
First order directional coupler, described first order directional coupler adopts double 6 elliptical aperture waveguides to turn the coupled structure of waveguide, is made up of main line waveguide, by-pass waveguide; Main line waveguide and by-pass waveguide are rectangular waveguide, and the downside broadside of by-pass waveguide is stacked on the upside of main line waveguide on broadside, and broadside alignment; The downside broadside of by-pass waveguide has along waveguide double, often arrange broadside correspondence position on the upside of 6 elliptical apertures, main line waveguide also have double, often arrange 6 elliptical apertures, degree of coupling of each row 6 elliptical apertures arranges according to chebyshev function;
Two waveguide bends, are connected respectively to the two ends of by-pass waveguide and isolated port and coupled output ports, and then are connected with extraneous matched load, second level directional coupler respectively;
Second level directional coupler, described second level directional coupler adopts waveguide to be coupled to strip line by narrow line of rabbet joint gap, and from the mode of standard N-type coaxial fitting power output, is made up of main line waveguide and by-pass strip line; Main line waveguide is rectangular waveguide, and one end and the couple input mouth of main line waveguide are connected with the coupled output ports of first order directional coupler, and namely the other end of main line waveguide mates port and be connected with extraneous matched load; On the upside of main line waveguide, broadside centre position has narrow line of rabbet joint gap along transmission direction, by-pass strip line is placed in narrow line of rabbet joint gap place on the upside of main line waveguide, a rectangular cavities is formed on the upside of its outer conductor and main line waveguide, be strip line inner wire in rectangular cavities, strip line inner wire is positioned at the centre position of strip line space and rectangular cavities;
Two standard N-type coaxial fittings, the inner wire of the two is connected with the two ends of strip line inner wire respectively, the outer conductor of the two is connected with strip line outer conductor, standard N-type coaxial fitting is as the coupled output ports of second level directional coupler, and another standard N-type coaxial fitting is connected with extraneous matched load.
As further improvement, the elliptical aperture described in first order directional coupler is put for erecting storing, and namely the long axis direction of elliptical aperture is broadside, and short-axis direction is along waveguide direction.
The object of the present invention is achieved like this.
HIGH-POWERED MICROWAVES rectangular waveguide directional coupler of the present invention is low for existing microwave rectangular waveguide directional coupler power capacity, and test port connects nonstandard, is inconvenient to the drawback of testing.In order to expand power capacity, overall coupled structure adopts secondary coupled modes, and make the degree of coupling of every one-level all large than the degree of coupling of entirety, the degree of coupling is larger, and corresponding coupling aperture is larger, and then the power capacity of directional coupler at different levels carrying is larger.Because input power is successively decreased step by step, so increase the power capacity of every one-level, increase overall power capacity exactly.Ensureing, under the condition that the overall degree of coupling is constant, to achieve expansion power capacity, improve the object of the peak power of directional coupler.Simultaneously, the two-stage directional coupled structure of the present invention's design can cooperatively interact, and the degree of coupling curvilinear motion of two-layer configuration is contrary, is superimposed and can presents the effect that positive negative disappears, make final overall degree of coupling curve passband fluctuation very smooth, be better than the degree of coupling curve of each single-stage.
Under the condition that method for designing is identical, the degree of coupling larger (meaning that the power that coupling port exports is larger), so the size of coupling aperture is larger.In the present invention, double elliptical aperture is adopted to design, the positional distance Narrow Wall of Waveguide limit at such elliptical aperture center is nearer, the degree of coupling is just less, coupling aperture and elliptical aperture size can be increased, first order directional coupler just can bear larger power capacity, and the probability that sparking occurs its coupling aperture just reduces.
In addition, the first order directional coupler in the present invention have employed a kind of elliptical aperture and is coupled, and by changing the eccentricity of elliptical aperture, can realize the adjustment of directivity.
Accompanying drawing explanation
Fig. 1 is a kind of embodiment structure chart of HIGH-POWERED MICROWAVES rectangular waveguide directional coupler of the present invention;
Fig. 2 is the directional coupling structure figure of the first order shown in Fig. 1, and wherein, figure (A) is cut-away view, and figure (B) schemes the plane structure chart that the double 6 elliptical aperture waveguides at (A) arrow indication place turn the coupled structure of waveguide;
Fig. 3 is the directional coupling structure figure of the second level shown in Fig. 1; Wherein, figure (A) is vertical cross-section structure chart, and figure (B) is horizontal planar configuration figure;
Fig. 4 be first and second grade of directional coupler shown in Fig. 1 and the two combine as a whole degree of coupling curve chart.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described, so that those skilled in the art understands the present invention better.Requiring particular attention is that, in the following description, when perhaps the detailed description of known function and design can desalinate main contents of the present invention, these are described in and will be left in the basket here.
In the present embodiment, as shown in Figure 1, HIGH-POWERED MICROWAVES rectangular waveguide directional coupler of the present invention comprise first order directional coupler 1, two waveguide bends 2,3, second level directional coupler 4 and two standard N-type coaxial fittings 5,6.
In the present embodiment, as shown in Figure 2, described first order directional coupler 1 adopts double 6 elliptical aperture waveguides to turn the coupled structure of waveguide.As shown in Fig. 2 (A), first order directional coupler 1 is made up of main line waveguide 101, by-pass waveguide 102; Main line waveguide 101 and by-pass waveguide 102 are rectangular waveguide, and the downside broadside of by-pass waveguide 102 is stacked on the upside of main line waveguide 101 on broadside, and broadside alignment.As shown in Fig. 2 (A), (B), the downside broadside of by-pass waveguide 102 has along waveguide double, often arrange broadside correspondence position on the upside of 6 elliptical apertures, main line waveguide 101 also have double, often arrange 6 elliptical apertures, the degree of coupling of each row 6 elliptical apertures arranges according to chebyshev function, forms the coupled structure that double 6 elliptical aperture waveguides turn waveguide.
In the present embodiment, to be operated in the HIGH-POWERED MICROWAVES rectangular waveguide directional coupler of S-band (1.72Ghz ~ 2.61Ghz):
The main line waveguide 101 of first order directional coupler adopts the long BJ22 waveguide for 600mm, and by-pass waveguide 102 adopts the long BJ22 waveguide for 320mm.By-pass waveguide 102 is positioned at the centre position of main line waveguide 101 length direction.BJ22 waveguide is rectangular waveguide, and its cross section parameters (broadside × narrow limit × thickness) is 109.22 × 54.61 × 2mm.Turn in the coupled structure of waveguide in double 6 elliptical aperture waveguides, the degree of coupling of each row 6 elliptical apertures arranges according to chebyshev function, specifically, in the present embodiment, the distance x=0.17a=18.56mm of each elliptical aperture centre distance wave guide wall, arbitrary neighborhood two elliptical aperture center is at a distance of D=46.1mm.Wherein by paracentral elliptical aperture size major axis l
1=31.2mm, minor axis d
1=23.3mm; Depart from the elliptical aperture size major axis l of both sides, center
2=27.6mm, minor axis d
2=20.6mm; The elliptical aperture size major axis l at two ends
3=20.9mm, minor axis d
3=15.6mm.
As shown in Figure 1, port one is served as theme waveguide 101 input port, and port 2 is served as theme waveguide 101 output port, and when testing as the degree of coupling, port 2 connects waveguide match load.The HIGH-POWERED MICROWAVES of input is input to main line waveguide 101 from port one, and then, the coupled structure turning waveguide through double 6 elliptical aperture waveguides is as shown in Figure 2 coupled in by-pass waveguide 102.
In the present embodiment, as shown in Figure 1, two waveguide bends 2,3 are connected respectively to two ends port 3,4 i.e. isolated port and the coupled output ports of by-pass waveguide 102, and then are connected with extraneous matched load (not shown), second level directional coupler 4 respectively.The microwave be coupled in by-pass waveguide 102 outputs to second level directional coupler 4 from coupled output ports through waveguide bend 3.
In the present embodiment, as shown in Figure 3, described second level directional coupler 4 adopts waveguide to be coupled to strip line by narrow line of rabbet joint gap, and from the mode of standard N-type coaxial fitting power output.Be made up of main line waveguide 401 and by-pass strip line 402.Main line waveguide 401 is rectangular waveguide, one end port 5 i.e. couple input mouth of main line waveguide 401 is connected through the coupled output ports of waveguide bend 3 and first order directional coupler 1 and port 4, and namely the other end port 6 of main line waveguide 401 mates port and be connected with extraneous matched load (not shown); On the upside of main line waveguide 401, broadside centre position has narrow line of rabbet joint gap 4011 along transmission direction, by-pass strip line 402 is placed in narrow line of rabbet joint gap 4011 place on the upside of main line waveguide 401, a rectangular cavities is formed on the upside of its outer conductor 4021 and main line waveguide 401, be strip line inner wire 4022 in rectangular cavities, strip line inner wire 4022 is positioned at the centre position of strip line space and rectangular cavities.
In the present embodiment, as shown in Figure 3, second level directional coupler main line waveguide 401 adopts the long BJ22 waveguide for 260mm.Narrow line of rabbet joint gap 4011 length L=37.5 (mm) in narrow line of rabbet joint gap coupled structure, width W=23 (mm).The horizontal planar configuration figure of Fig. 3 (A) top band line inner wire, strip line inner wire 4022 two end portions diameter W
1=4.8 (mm), length L
1=21 (mm).Strip line inner wire 4022 interlude diameter W
2==4 (mm), length L
2=118 (mm).In the present embodiment, strip line inner wire 4022 have employed two end portions and the inconsistent particular design method of interlude diameter, significantly improves the matching properties of N-type coaxial port.
In the present embodiment, as shown in Figure 3, two standard N-type coaxial fittings 5,6, the two inner wire of 5,6 is connected with the two ends of strip line inner wire 4022 respectively, the two outer conductor of 5,6 is connected with strip line outer conductor 4021, standard N-type coaxial fitting 5 is as the coupled output ports of second level directional coupler 4, and another standard N-type coaxial fitting 6 is connected (not shown) as isolation end with extraneous matched load.
In the present embodiment, as shown in Figure 3, the present invention installs the tunable M8 screw 4023 that is inserted by-pass strip line 402 inside above the by-pass strip line 402 of second level directional coupler, the degree of depth changing the insertion of M8 screw 4023 can regulate the degree of coupling flatness of second level directional coupler and the coupling of coupling port, and this design can carry out adjustment optimization to the secondary directional coupler processed easily.
The present invention be directed to power capacity in background technology low, test port connects complicated, is inconvenient to drawbacks such as testing.In order to expand power capacity, overall coupled structure adopts secondary coupled modes, and make the degree of coupling of every one-level all large than the degree of coupling of entirety, the degree of coupling is larger, and the power capacity of directional coupler carrying at different levels is larger.Because input power is successively decreased step by step, so increase the power capacity of every one-level, increase overall power capacity exactly.Ensureing, under the condition that the overall degree of coupling is constant, to achieve the object expanding power capacity.Simultaneously as far as possible little in order to realize degree of coupling passband fluctuation, two-stage directional coupled structure of the present invention can cooperatively interact, the degree of coupling curvilinear motion of two-layer configuration is contrary, finally be superimposed and can present the effect that positive negative disappears, as shown in Figure 4, make final overall degree of coupling curve passband fluctuation very smooth, be better than the degree of coupling curve of each single-stage.
Innovation below the present invention also has in a lot of details:
First, under the condition that method for designing is identical, the degree of coupling larger (meaning that the power that coupling port exports is larger), so the size of coupling aperture is larger.When designing waveguide directional coupler, if coupling orifice size is larger, and the positional distance Narrow Wall of Waveguide limit of small hole center is nearer, so the probability of the internal structure generation sparking of this directional coupler is less, thus improves the power capacity of directional coupler.The double 6 elliptical aperture waveguides of a kind of novelty of first order directional coupler of the present invention turn the coupled structure of waveguide.The overlapping index of first order elliptical aperture directional coupler is-25dB, and the degree of coupling in background material technology is-50dB.The degree of coupling increases 25dB, and the power ratio background material being equivalent to coupling output is high 316 times, if still according to single row of holes arrangement design, can cause the oversize limit exceeding rectangular waveguide broadside of coupling aperture.Under the condition that the degree of coupling is certain, the size of double-row hole has than the size of single row of holes and significantly reduces, so the first order adopts double-row hole design.Because the pose pattern of elliptical aperture in rectangular waveguide is divided into horizontal and perpendicular putting, so devise the first order directional coupler of two kinds of pose pattern respectively.Relative to the circular port in background material, need to consider this kind of important parameter of oval eccentricity during design elliptical aperture.Calculate according to correlation function, after determining the distance on elliptical aperture center and narrow limit and the pose pattern of elliptical aperture, just can determine the centre frequency of directional coupler and the functional relation of elliptical aperture eccentricity.By contrasting the simulation result of the elliptical aperture directional coupler of two kinds of pose pattern, show that the perpendicular elliptical aperture put shows more superior (perpendicular elliptical aperture directional coupler internal structure of putting as shown in Figure 2) in the index of the degree of coupling, directivity.Final minimum ellipse hole minor axis d of the present invention
1=15.6mm, the narrow limit x=0.17a of elliptical aperture centre distance, and the smallest circle bore dia in background technology is d=7mm, x=0.235a.In the present invention, elliptical aperture size is not only greater than the circular port size in background material, and elliptical aperture center is also closer to narrow limit, and therefore power capacity of the present invention must be greater than the power capacity in background technology.
Secondly, what first order directional coupler of the present invention adopted is the coupled structure that double 6 elliptical aperture waveguides turn waveguide.The degree of coupling of 6 elliptical apertures arranges according to chebyshev function.In the design process, the large I changing eccentricity is guaranteed, under the prerequisite meeting overlapping index, to realize the adjustment of directivity.Found that by experiment, under the same number of condition of aperture, elliptical aperture has better performance relative to circular hole in the directivity of directional coupler, under the condition that degree of coupling design objective is identical, use 6 single elliptical apertures in the present invention, the effect of 10 single circular ports in background material can be reached.
Finally, the second level of the present invention directional coupler adopts waveguide to be coupled to strip line by narrow line of rabbet joint gap, and from the mode of standard N-type coaxial fitting power output.For the problem that the coupling in background technology and isolated port are all rectangular waveguide, the present invention adopts coupling, isolated port is standard N-type coaxial fitting, this design can directly be connected with measuring instrument, simplifies testing process, and reduces directional coupler overall volume.The present invention has installed the tunable M8 screw of an insertion strip line inside above the directional coupler by-pass of the second level, and the degree of depth changing the insertion of M8 screw can regulate the degree of coupling flatness of secondary directional coupler of the present invention and the coupling of coupling port.This design can carry out adjustment optimization to the secondary directional coupler processed easily.Secondly, the strip line inner wire in the present invention have employed the two end portions particular design method inconsistent with middle one section of width, significantly improves the matching properties of N-type coaxial port.
In the present embodiment, the waveguide port of first and second grade of directional coupler has all installed standard flange, is beneficial to waveguide match load, the connection of HIGH-POWERED MICROWAVES device and fixing.
In the present embodiment, HIGH-POWERED MICROWAVES rectangular waveguide directional coupler overall structure of the present invention needs to be weldingly connected, and guarantees that welding position inner surface is smooth, smooth.Be connected by waveguide bend between the first order and second level directional coupler.
The present invention, owing to adopting the secondary coupled modes of above-mentioned innovative design, therefore has higher peak power capacity, and due to measurement port be standard N-type coaxial fitting, not only reduce overall volume, also make measuring process more simplify.
In the present embodiment, HIGH-POWERED MICROWAVES rectangular waveguide directional coupler of the present invention and the supporting use of microwave measurement system, its degree of coupling is 50.35dB-50.7dB, and passband fluctuation is the 1dB that 0.35dB is better than in background technology.Directivity is less than-38dB.N-type coaxial fitting standing-wave ratio VSWR is less than 1.3, and return loss is very little, has good matching properties; Can bear peak power is 3.5MW, much larger than the power capacity of the directional coupler in background technology.Coupling measurement port is N-type coaxial port, test more convenient than the waveguide port in background material.
Although be described the illustrative embodiment of the present invention above; so that those skilled in the art understand the present invention; but should be clear; the invention is not restricted to the scope of embodiment; to those skilled in the art; as long as various change to limit and in the spirit and scope of the present invention determined, these changes are apparent, and all innovation and creation utilizing the present invention to conceive are all at the row of protection in appended claim.
Claims (4)
1. a HIGH-POWERED MICROWAVES rectangular waveguide directional coupler, is characterized in that, comprising:
First order directional coupler, described first order directional coupler adopts double 6 elliptical aperture waveguides to turn the coupled structure of waveguide, is made up of main line waveguide, by-pass waveguide; Main line waveguide and by-pass waveguide are rectangular waveguide, and the downside broadside of by-pass waveguide is stacked on the upside of main line waveguide on broadside, and broadside alignment; The downside broadside of by-pass waveguide has along waveguide double, often arrange broadside correspondence position on the upside of 6 elliptical apertures, main line waveguide also have double, often arrange 6 elliptical apertures, degree of coupling of each row 6 elliptical apertures arranges according to chebyshev function;
Two waveguide bends, are connected respectively to the two ends of by-pass waveguide and isolated port and coupled output ports, and then are connected with extraneous matched load, second level directional coupler respectively;
Second level directional coupler, described second level directional coupler adopts waveguide to be coupled to strip line by narrow line of rabbet joint gap, and from the mode of standard N-type coaxial fitting power output, is made up of main line waveguide and by-pass strip line; Main line waveguide is rectangular waveguide, and one end and the couple input mouth of main line waveguide are connected with the coupled output ports of first order directional coupler, and namely the other end of main line waveguide mates port and be connected with extraneous matched load; On the upside of main line waveguide, broadside centre position has narrow line of rabbet joint gap along transmission direction, by-pass strip line is placed in narrow line of rabbet joint gap place on the upside of main line waveguide, a rectangular cavities is formed on the upside of its outer conductor and main line waveguide, be strip line inner wire in rectangular cavities, strip line inner wire is positioned at the centre position of strip line space and rectangular cavities;
Two standard N-type coaxial fittings, the inner wire of the two is connected with the two ends of strip line inner wire respectively, the outer conductor of the two is connected with strip line outer conductor, standard N-type coaxial fitting is as the coupled output ports of second level directional coupler, and another standard N-type coaxial fitting is connected with extraneous matched load.
2. directional coupler according to claim 1, it is characterized in that, install the tunable M8 screw 4023 that is inserted by-pass strip line 402 inside above the by-pass strip line 402 of second level directional coupler, the degree of depth changing the insertion of M8 screw 4023 can regulate the degree of coupling flatness of second level directional coupler and the coupling of coupling port.
3. directional coupler according to claim 1, it is characterized in that, described HIGH-POWERED MICROWAVES rectangular waveguide directional coupler is operated in S-band (1.72Ghz ~ 2.61Ghz), the main line waveguide 101 of first order directional coupler adopts the long BJ22 waveguide for 600mm, and by-pass waveguide 102 adopts the long BJ22 waveguide for 320mm;
Second level directional coupler main line waveguide 401 adopts the long BJ22 waveguide for 260mm, narrow line of rabbet joint gap 4011 length L=37.5 (mm) in narrow line of rabbet joint gap coupled structure, width W=23 (mm);
Strip line inner wire have employed the two end portions particular design method inconsistent with middle one section of width, significantly improves the matching properties of N-type coaxial port; Strip line inner wire 4022 two end portions diameter W
1=4.8 (mm), length L
1=21 (mm), strip line inner wire 4022 interlude diameter W
2==4 (mm), length L
2=118 (mm).
4. directional coupler according to claim 1, is characterized in that, the waveguide port of first and second grade of directional coupler has all installed standard flange, is beneficial to waveguide match load, the connection of HIGH-POWERED MICROWAVES device and fixing;
HIGH-POWERED MICROWAVES rectangular waveguide directional coupler overall structure needs to be weldingly connected, and guarantees that welding position inner surface is smooth, smooth.
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| CN108598655A (en) * | 2018-05-10 | 2018-09-28 | 电子科技大学 | A kind of Compact type broadband rectangular waveguide coupler |
| CN109638403A (en) * | 2019-01-15 | 2019-04-16 | 电子科技大学 | A kind of bimodulus compact crosses mould directional coupler |
| CN114464514A (en) * | 2021-11-18 | 2022-05-10 | 电子科技大学 | Frequency-locking phase-locking structure and magnetron structure formed by same |
| CN116345105A (en) * | 2023-05-31 | 2023-06-27 | 成都沃特塞恩电子技术有限公司 | Microwave coupling device |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105826646A (en) * | 2016-05-12 | 2016-08-03 | 电子科技大学 | Multi-hole rectangular waveguide directional coupler |
| CN105826646B (en) * | 2016-05-12 | 2018-11-06 | 电子科技大学 | A kind of porous rectangular waveguide directional coupler |
| CN108091974A (en) * | 2017-12-12 | 2018-05-29 | 江苏德是和通信科技有限公司 | A kind of rectangular waveguide directional coupler |
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| CN108598655A (en) * | 2018-05-10 | 2018-09-28 | 电子科技大学 | A kind of Compact type broadband rectangular waveguide coupler |
| CN109638403A (en) * | 2019-01-15 | 2019-04-16 | 电子科技大学 | A kind of bimodulus compact crosses mould directional coupler |
| CN114464514A (en) * | 2021-11-18 | 2022-05-10 | 电子科技大学 | Frequency-locking phase-locking structure and magnetron structure formed by same |
| CN114464514B (en) * | 2021-11-18 | 2023-04-07 | 电子科技大学 | Frequency-locking phase-locking structure and magnetron structure formed by same |
| CN116345105A (en) * | 2023-05-31 | 2023-06-27 | 成都沃特塞恩电子技术有限公司 | Microwave coupling device |
| CN116345105B (en) * | 2023-05-31 | 2023-08-22 | 成都沃特塞恩电子技术有限公司 | microwave coupling device |
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| CN104836009B (en) | 2017-07-18 |
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