CN105826646A - Multi-hole rectangular waveguide directional coupler - Google Patents
Multi-hole rectangular waveguide directional coupler Download PDFInfo
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- CN105826646A CN105826646A CN201610312777.0A CN201610312777A CN105826646A CN 105826646 A CN105826646 A CN 105826646A CN 201610312777 A CN201610312777 A CN 201610312777A CN 105826646 A CN105826646 A CN 105826646A
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- rectangular waveguide
- directional coupler
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P5/00—Coupling devices of the waveguide type
- H01P5/12—Coupling devices having more than two ports
- H01P5/16—Conjugate devices, i.e. devices having at least one port decoupled from one other port
- H01P5/18—Conjugate devices, i.e. devices having at least one port decoupled from one other port consisting of two coupled guides, e.g. directional couplers
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Abstract
The invention discloses a multi-hole rectangular waveguide directional coupler. The multi-hole rectangular waveguide directional coupler includes a main rectangular waveguide which is used as a microwave main channel, an auxiliary rectangular waveguide which is used as a sampling signal channel, and coupling holes which are used as the coupling channel, wherein a master mode H plane of the main rectangular waveguide and a master mode H plane of the auxiliary rectangular waveguide are parallel to each other; the main rectangular waveguide and the auxiliary rectangular waveguide are isolated from each other, and are communicated through the coupling holes which are arranged along the axis of the main rectangular waveguide; and the coupling holes include a first row of coupling holes and a second row of coupling holes which are midline-symmetrical in the transmission direction for the wide wall of the main rectangular waveguide. The multi-hole rectangular waveguide directional coupler is simple in structure and is easy for processing; the whole structure of the multi-hole rectangular waveguide directional coupler only has six coupling holes, and can be implemented by means of direct usage of a traditional technology on a cavity; through a simulation test, the multi-hole rectangular waveguide directional coupler has wider operation bandwidth and lower insertion loss; and compared with a traditional waveguide coupler, the multi-hole rectangular waveguide directional coupler has the advantages of being small in volume, being simple in structure, and being able to be conveniently integrated in a high frequency band circuit.
Description
Technical field
The invention belongs to multi-hole directional coupler technical field, be specifically related to a kind of utilize six symmetrical holes to carry out the porous rectangular waveguide directional coupler coupled.
Background technology
Directional coupler is widely used a kind of microwave/millimeter wave parts in microwave system, its isolation being mainly used for signal, separates and mixes；Directional coupler is made up of two transmission lines, and coaxial line, rectangular waveguide, circular waveguide, strip line and microstrip line etc. all may make up directional coupler；So directional coupler is of a great variety from the point of view of structure, widely different, but from the point of view of their coupling mechanism, be broadly divided into four kinds, i.e. Small aperture coupling, parallel coupling, branch's coupling and the double T of coupling.
By H.A.Wheeler, in nineteen forty-four, design realizes first directional coupler truly, Wheeler employs the cylinder of a pair a length of 1/4th center frequency wavelength and intercouples to the energy realizing electric field and magnetic field, and the most this method can only realize the bandwidth of an octave.
Directional coupler currently mainly includes micro-strip and guide directional coupler, but microstrip line is big thus be unsuitable for being operated in millimere-wave band due to loss, although it is the highest that the nonplanar wave guide structure such as Medium Wave Guide and rectangular waveguide is lost the least performance, but owing to volume is big and is difficult to integrated processing, it is difficult to be widely used in highly integrated system.
The tradition single-hole directional coupler advantage that has some: as simple in construction, parameter are few, design is got up more convenient；But it there is also some shortcomings: as poor in narrow bandwidth, directivity, only at design frequency, work is suitable, drifts out this frequency, and directivity will reduce.
Improved very much although conventional porous directional coupler can accomplish that the widest bandwidth, directivity also have, but there is also some shortcomings, as big in volume, requirement on machining accuracy is high, insertion loss is high, particularly at millimeter wave terahertz wave band, too high Insertion Loss makes this device lose use value.
Summary of the invention
Present invention aim to address the problems referred to above, it is provided that a kind of volume is little, insertion loss is low, with wide, be provided that the porous rectangular waveguide directional coupler of weak coupling.
For solving above-mentioned technical problem, the technical scheme is that a kind of porous rectangular waveguide directional coupler, including the main rectangular waveguide as microwave main channel, the secondary rectangular waveguide as sampled signal passage and the coupling aperture as coupling channel；The main mould H face of main rectangular waveguide is parallel to each other with the main mould H face of secondary rectangular waveguide；Main rectangular waveguide and secondary rectangular waveguide are mutually isolated, and both are connected by the coupling aperture arranged along the axis of main rectangular waveguide；Coupling aperture includes the symmetrical first row coupling aperture of the center line in transmission direction of the wide wall about main rectangular waveguide and second row coupling aperture.
Preferably, described first row coupling aperture and second row coupling aperture include three coupling apertures respectively, and in three coupling apertures often arranged, the coupling aperture being positioned at both sides is symmetrical at the center line of vertical direction about middle coupling aperture.
Preferably, in three coupling apertures often arranged, the coupling aperture being positioned at centre is rectangle, and the coupling aperture being positioned at both sides is triangle.
Preferably, in three coupling apertures often arranged, the pitch of holes of coupling aperture is 0.8mm.
Preferably, the coupled section height of described main rectangular waveguide and secondary rectangular waveguide is equal.
Preferably, the narrow wall of the main rectangular waveguide of side corresponding thereto, the outside of described coupling aperture is tangent.
Preferably, described main rectangular waveguide and secondary rectangular waveguide are the regular metal waveguide of rectangular in cross-section.
Preferably, the cross-sectional sizes of described main rectangular waveguide and secondary rectangular waveguide is equal.
Preferably, one end of described main rectangular waveguide is input, and the other end is straight-through outfan；Secondary rectangular waveguide and input in the same side for isolation and amplifier end, with straight-through outfan in the same side for coupled output.
Preferably, described secondary rectangular waveguide takes the shape of the letter U.
The invention has the beneficial effects as follows:
(1) a kind of porous rectangular waveguide directional coupler provided by the present invention, simple in construction, it is easy to processing, total only has six coupling apertures, can directly use traditional handicraft to process realization on cavity.Through emulation testing, it has wider bandwidth of operation and less insertion loss.
(2) relative to traditional waveguide coupler, volume of the present invention is little, simple in construction, can easily be integrated in the circuit of high band.
(3) main rectangular waveguide and secondary rectangular waveguide are realized coupling by difform coupling aperture, passing ratio scales the size of all coupling apertures, can regulate stiffness of coupling, and coupling aperture change then couples enhancing greatly, coupling aperture diminishes, and coupling weakens, it is hereby achieved that weak coupling；Simultaneously can also be by changing the isolation distance t between main rectangular waveguide and secondary rectangular waveguide, namely the thickness of coupling aperture regulates stiffness of coupling, and coupling aperture thickness diminishes, and couples enhancing, and coupling aperture thickness becomes big then coupling and weakens.
(4) bonder has preferable directivity, by finely tuning the size ratio of size coupling aperture, can regulate isolation, and the degree of coupling will not be much affected, so that directivity is optimized.
Accompanying drawing explanation
Fig. 1 is the structural representation of porous rectangular waveguide directional coupler of the present invention；
Fig. 2 is the top view of porous rectangular waveguide directional coupler of the present invention；
Fig. 3 is the perspective view of porous rectangular waveguide directional coupler of the present invention；
Fig. 4 is the main rectangular waveguide of the present invention and the size marking schematic diagram of secondary rectangular waveguide；
Fig. 5 is the size marking schematic diagram of coupling aperture of the present invention；
Fig. 6 is the emulation testing figure of porous rectangular waveguide directional coupler of the present invention.
Description of reference numerals: 1, main rectangular waveguide；2, secondary rectangular waveguide；3, coupling aperture；31, first row coupling aperture；32, second row coupling aperture；4, input；5, straight-through outfan；6, isolation and amplifier end；7, coupled output.
Detailed description of the invention
The present invention is described further with specific embodiment below in conjunction with the accompanying drawings:
As it is shown in figure 1, a kind of porous rectangular waveguide directional coupler of the present invention, including the main rectangular waveguide 1 as microwave main channel, the secondary rectangular waveguide 2 as sampled signal passage and the coupling aperture 3 as coupling channel；The main mould H face of main rectangular waveguide 1 is parallel to each other with the main mould H face of secondary rectangular waveguide 2, and main mould H face said herein is face, magnetic field；Main rectangular waveguide 1 and secondary rectangular waveguide 2 are mutually isolated, and both are connected by the coupling aperture 3 arranged along the axis of main rectangular waveguide 1；One end of main rectangular waveguide 1 is input 4, and the other end is straight-through outfan 5, input 4 outer signal source, enables pumping signal by main rectangular waveguide 1；Secondary rectangular waveguide 2 and input 4 in the same side for isolation and amplifier end 6, with straight-through outfan 5 in the same side for coupled output 7.
Coupling aperture 3 includes the symmetrical first row coupling aperture 31 of the center line in transmission direction of the wide wall about main rectangular waveguide 1 and second row coupling aperture 32.First row coupling aperture 31 and second row coupling aperture 32 include three coupling apertures respectively, in three coupling apertures often arranged, the coupling aperture being positioned at both sides is symmetrical at the center line of vertical direction about middle coupling aperture, and the coupling aperture being positioned at centre is rectangle, and the coupling aperture being positioned at both sides is triangle.The height of three coupling apertures often arranged is equal.
Main rectangular waveguide 1 and secondary rectangular waveguide 2 are the regular metal waveguide of rectangular in cross-section, in the present embodiment, the cross-sectional sizes of main rectangular waveguide 1 and secondary rectangular waveguide 2 is equal, both coupled section height i.e. are equal, the narrow wall of the main rectangular waveguide 1 of side corresponding thereto, the outside of coupling aperture 3 is tangent, also the most tangent with the narrow wall of secondary rectangular waveguide 2.Coupled section said herein is main rectangular waveguide 1 and is connected with coupling aperture 3 respectively with secondary rectangular waveguide 2 that section being mutually coupled.
Particularly, secondary rectangular waveguide 2 takes the shape of the letter U, it is simple to measure.
As shown in Fig. 2, Fig. 4 and Fig. 5, porous rectangular waveguide directional coupler in the present embodiment concrete the most a size of: the cross-sectional sizes of main rectangular waveguide 1 and secondary rectangular waveguide 2 is 7.112mm × 3.556mm, the wide wall height a=7.112mm of main rectangular waveguide 1, narrow wall width b=3.556mm.
Pitch of holes d=0.8mm of three coupling apertures often arranged, each coupling aperture has the chamfering of r=0.5mm.
Main rectangular waveguide 1 and the isolation distance t=0.5mm of secondary rectangular waveguide 2.
In three coupling apertures often arranged, length of side w that triangle coupling aperture is tangent with the narrow wall of main rectangular waveguide 12=2.2mm, length of side h vertical with this limit2=2.41mm, this vertical edges is near rectangle coupling aperture.Length of side w that rectangle coupling aperture is tangent with the narrow wall of main rectangular waveguide 11=2.5mm, length of side h vertical with this limit1=2.41mm.
As shown in Figure 4, other dimensional parameters of U-shaped pair rectangular waveguide 2 and main rectangular waveguide 1 are: l1=10mm, l2=l3=20mm, R1=3.24mm, R2=10.35mm.
Utilizing HFSS15.0 to emulate the porous rectangular waveguide directional coupler of above-mentioned size, simulation result is as shown in Figure 6.The frequency characteristic of the present invention includes: insertion loss S21, return loss S11, decibel isolation S41 and decibel degree of coupling S31.Wherein abscissa represents frequency variable；Vertical coordinate represents amplitude scalar, and unit is dB.Isolation is more than 28dB in ka all band for the novel porous rectangular waveguide directional coupler of the present invention, and coupling flatness is less than 1dB.And the stiffness of coupling that can realize in the bandwidth of up to 41.3% is-19.79 ± 0.56dB, simultaneously while whole waveguide bandwidth reaches, can significantly reduce the volume of bonder.
Those of ordinary skill in the art is it will be appreciated that embodiment described here is to aid in the principle of the reader understanding present invention, it should be understood that protection scope of the present invention is not limited to such special statement and embodiment.Those of ordinary skill in the art can make various other various concrete deformation and combination without departing from essence of the present invention according to these technology disclosed by the invention enlightenment, and these deformation and combination are the most within the scope of the present invention.
Claims (10)
1. a porous rectangular waveguide directional coupler, it is characterised in that: include the main rectangular waveguide (1) as microwave main channel, the secondary rectangular waveguide (2) as sampled signal passage and the coupling aperture (3) as coupling channel；The main mould H face of main rectangular waveguide (1) is parallel to each other with the main mould H face of secondary rectangular waveguide (2)；Main rectangular waveguide (1) and secondary rectangular waveguide (2) are mutually isolated, and both are connected by the coupling aperture (3) arranged along the axis of main rectangular waveguide (1)；Coupling aperture (3) includes the symmetrical first row coupling aperture (31) of the center line in transmission direction of the wide wall about main rectangular waveguide (1) and second row coupling aperture (32).
Porous rectangular waveguide directional coupler the most according to claim 1, it is characterized in that: described first row coupling aperture (31) and second row coupling aperture (32) include three coupling apertures respectively, in three coupling apertures often arranged, the coupling aperture being positioned at both sides is symmetrical at the center line of vertical direction about middle coupling aperture.
Porous rectangular waveguide directional coupler the most according to claim 2, it is characterised in that: in three coupling apertures often arranged, the coupling aperture being positioned at centre is rectangle, and the coupling aperture being positioned at both sides is triangle.
4. according to the porous rectangular waveguide directional coupler described in Claims 2 or 3, it is characterised in that: in three coupling apertures often arranged, the pitch of holes of coupling aperture is 0.8mm.
Porous rectangular waveguide directional coupler the most according to claim 1, it is characterised in that: the coupled section height of described main rectangular waveguide (1) and secondary rectangular waveguide (2) is equal.
Porous rectangular waveguide directional coupler the most according to claim 1 or 5, it is characterised in that: the narrow wall of the main rectangular waveguide (1) of the side corresponding thereto, outside of described coupling aperture (3) is tangent.
Porous rectangular waveguide directional coupler the most according to claim 1, it is characterised in that: described main rectangular waveguide (1) and secondary rectangular waveguide (2) are the regular metal waveguide of rectangular in cross-section.
8. according to the porous rectangular waveguide directional coupler described in claim 1 or 7, it is characterised in that: the cross-sectional sizes of described main rectangular waveguide (1) and secondary rectangular waveguide (2) is equal.
Porous rectangular waveguide directional coupler the most according to claim 1, it is characterised in that: one end of described main rectangular waveguide (1) is input (4), and the other end is straight-through outfan (5)；Secondary rectangular waveguide (2) and input (4) in the same side for isolation and amplifier end (6), with straight-through outfan (5) in the same side for coupled output (7).
Porous rectangular waveguide directional coupler the most according to claim 1, it is characterised in that: described secondary rectangular waveguide (2) takes the shape of the letter U.
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| CN201610312777.0A CN105826646B (en) | 2016-05-12 | 2016-05-12 | A kind of porous rectangular waveguide directional coupler |
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| CN201610312777.0A CN105826646B (en) | 2016-05-12 | 2016-05-12 | A kind of porous rectangular waveguide directional coupler |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450642A (en) * | 2016-10-26 | 2017-02-22 | 中国科学院新疆天文台 | A Q-band multi-pore coupling type directional coupler |
| CN107134627A (en) * | 2017-06-08 | 2017-09-05 | 中北大学 | Many diamond hole coupled mode guide directional couplers |
| CN107910626A (en) * | 2017-10-13 | 2018-04-13 | 西安电子科技大学 | Multiband based on sharp bending rectangular waveguide minimizes 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 |
| CN108649308A (en) * | 2018-05-15 | 2018-10-12 | 电子科技大学 | A kind of modified Terahertz branched guide coupler |
| CN111370833A (en) * | 2020-03-26 | 2020-07-03 | 清华大学 | Rectangular waveguide directional coupler |
| CN113050220A (en) * | 2021-03-15 | 2021-06-29 | 中国科学院微电子研究所 | Gradual change curved waveguide device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5185046A (en) * | 1991-10-22 | 1993-02-09 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Method for non-destructive estimation of waveguide directional coupler dimensions |
| CN203225326U (en) * | 2012-08-10 | 2013-10-02 | 成都赛纳赛德科技有限公司 | Porous directional coupler provided with main rectangular waveguide and auxiliary rectangular waveguide having different sizes |
| CN104836009A (en) * | 2015-05-22 | 2015-08-12 | 电子科技大学 | Large-power microwave rectangular waveguide directional coupler |
-
2016
- 2016-05-12 CN CN201610312777.0A patent/CN105826646B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5185046A (en) * | 1991-10-22 | 1993-02-09 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Method for non-destructive estimation of waveguide directional coupler dimensions |
| CN203225326U (en) * | 2012-08-10 | 2013-10-02 | 成都赛纳赛德科技有限公司 | Porous directional coupler provided with main rectangular waveguide and auxiliary rectangular waveguide having different sizes |
| CN104836009A (en) * | 2015-05-22 | 2015-08-12 | 电子科技大学 | Large-power microwave rectangular waveguide directional coupler |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106450642A (en) * | 2016-10-26 | 2017-02-22 | 中国科学院新疆天文台 | A Q-band multi-pore coupling type directional coupler |
| CN106450642B (en) * | 2016-10-26 | 2019-03-15 | 中国科学院新疆天文台 | A kind of porous coupled mode directional coupler of Q-band |
| CN107134627A (en) * | 2017-06-08 | 2017-09-05 | 中北大学 | Many diamond hole coupled mode guide directional couplers |
| CN107910626A (en) * | 2017-10-13 | 2018-04-13 | 西安电子科技大学 | Multiband based on sharp bending rectangular waveguide minimizes directional coupler |
| CN107910626B (en) * | 2017-10-13 | 2019-11-15 | 西安电子科技大学 | Multiband based on sharp bending rectangular waveguide minimizes 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 |
| CN108091974B (en) * | 2017-12-12 | 2023-11-14 | 江苏德是和通信科技有限公司 | Rectangular waveguide directional coupler |
| CN108649308A (en) * | 2018-05-15 | 2018-10-12 | 电子科技大学 | A kind of modified Terahertz branched guide coupler |
| CN108649308B (en) * | 2018-05-15 | 2020-09-25 | 电子科技大学 | Improved terahertz branch waveguide coupler |
| CN111370833A (en) * | 2020-03-26 | 2020-07-03 | 清华大学 | Rectangular waveguide directional coupler |
| CN111370833B (en) * | 2020-03-26 | 2021-04-30 | 清华大学 | Rectangular waveguide directional coupler |
| CN113050220A (en) * | 2021-03-15 | 2021-06-29 | 中国科学院微电子研究所 | Gradual change curved waveguide device |
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| CN105826646B (en) | 2018-11-06 |
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