KR101874248B1 - Transition Apparatus between Waveguide and Microstrip Line - Google Patents

Transition Apparatus between Waveguide and Microstrip Line Download PDF

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Publication number
KR101874248B1
KR101874248B1 KR1020170070871A KR20170070871A KR101874248B1 KR 101874248 B1 KR101874248 B1 KR 101874248B1 KR 1020170070871 A KR1020170070871 A KR 1020170070871A KR 20170070871 A KR20170070871 A KR 20170070871A KR 101874248 B1 KR101874248 B1 KR 101874248B1
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KR
South Korea
Prior art keywords
jig
waveguide
microstrip line
hole
coupled
Prior art date
Application number
KR1020170070871A
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Korean (ko)
Inventor
가민호
김재흥
오우리아 드완타리
전세연
Original Assignee
연세대학교 산학협력단
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Priority to KR1020170070871A priority Critical patent/KR101874248B1/en
Application granted granted Critical
Publication of KR101874248B1 publication Critical patent/KR101874248B1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P3/00—Waveguides; Transmission lines of the waveguide type
    • H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
    • H01P3/08—Microstrips; Strip lines
    • H01P3/081—Microstriplines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
    • H01P5/10—Coupling devices of the waveguide type for linking dissimilar lines or devices for coupling balanced lines or devices with unbalanced lines or devices
    • H01P5/107—Hollow-waveguide/strip-line transitions

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Abstract

Disclosed is a waveguide-micro strip line transition apparatus. The apparatus is a transition apparatus for signal conversion between a waveguide and a micro strip line. The apparatus includes: a lower jig coupled with the micro strip line and the waveguide; an intermediate portion jig coupled with the upper surface of the lower jig; an upper jig coupled with the upper surface of the intermediate portion jig; and an adjustment rod positioned on the waveguide and the micro strip line and coupled with the intermediate portion jig. The height of the adjustment rod can be adjusted. According to the apparatus, resonance frequency tuning can be facilitated.

Description

[0001] The present invention relates to a waveguide-to-microstrip line transition device,

The present invention relates to a transition device, and more particularly, to a waveguide-microstrip line transition device.

Printed-circuit-array antennas, such as microstrip arrays and substrate-integrated waveguide arrays, are very commonly used in small radar applications due to their light weight, low cost, flatness and ease of manufacture.

At the millimeter wave frequency used in the radar system, a printed circuit board array antenna to waveguide structure requires a transition from a microstrip to a waveguide. In this transition, power is coupled into a patch-shaped probe located at the center of the waveguide opening in the upper side of the substrate in the waveguide beneath the substrate. In addition, a back-short must be placed on top of the probe in the form of a patch. A device such as a jig can be coupled to the top of the probe to form a back shot, and the resonant frequency of the antenna is determined by the position of the probe and back shot.

However, since the antenna resonance frequency can be changed even at a high frequency such as a millimeter wave, the resonance frequency of the antenna in the radar system must be designed so as to exactly match the frequency of signals transmitted and received by the radar transmitter and the receiver. If the frequency of the signal does not match, the radar performance may be degraded.

1 is a diagram showing a transition apparatus of the prior art.

Referring to Fig. 1, a transition apparatus of the prior art includes a lower jig 1 and an upper jig 2. Fig. A probe is positioned in the central groove of the lower jig 1, and a back shot is formed by the upper jig 2. [ Therefore, the position of the back shot can be determined by the thickness of the lower jig 1. [ Such a conventional transition apparatus has a problem in that, when the resonance frequency of the antenna is not matched by an error, the position of the backshot can not be adjusted after manufacture.

In order to solve the above problems, the present invention provides a waveguide-microstrip line transition device capable of tuning a resonance frequency.

To achieve the above object, according to a preferred embodiment of the present invention, there is provided a transition device for signal conversion between a waveguide and a microstrip line, comprising: a lower jig coupled with the microstrip line and the waveguide; An intermediate jig coupled to an upper surface of the lower jig; An upper jig coupled to an upper surface of the intermediate jig; And a tuning rod located above the waveguide and the microstrip line and coupled with the intermediate jig, wherein the height of the tuning rod is adjustable.

A nut hole having a thread on an inner circumferential surface thereof is formed at the center of the dial portion, and a nut hole is formed in the outer circumferential surface of the dial portion, A thread corresponding to the thread of the nut hole is formed, and the adjustment rod is inserted into the nut hole.

A handle of a serrated shape is formed on an outer circumferential surface of the dial portion, the handle is exposed to one side of the middle portion jig, and the height of the adjustment rod is adjusted according to the rotation of the dial portion.

A patch probe is formed at an end of the microstrip line, the patch probe is located at an upper portion of the waveguide, and the adjustment rod is located at an upper portion of the patch probe.

And the lower jig is formed with a slot corresponding to the position of the microstrip line so that the lower jig and the microstrip line are spaced apart from each other.

And the lower jig and the upper jig are formed with a rod hole into which the control rod is inserted.

The dial portion is formed with a groove or a hole, and an elastic body is coupled to the groove or the hole, and the dial portion is rotatable when a force of a specific value or more is applied.

The lower jig, the middle jig, and the upper jig are formed with a plurality of screw holes into which screws or pins are inserted.

According to another embodiment of the present invention, there is provided a transition device for signal conversion between a waveguide and a microstrip line, comprising: a first lower jig coupled with the microstrip line and the waveguide; A second lower jig coupled to an upper surface of the first lower jig; An intermediate jig coupled to an upper surface of the second lower jig; An upper jig coupled to an upper surface of the intermediate jig; And a tuning rod located above the waveguide and the microstrip line and coupled with the intermediate jig, wherein the height of the tuning rod is adjustable.

A nut hole having a thread on an inner circumferential surface thereof is formed at the center of the dial portion, and a nut hole is formed in the outer circumferential surface of the dial portion, A thread corresponding to the thread of the nut hole is formed, and the adjustment rod is inserted into the nut hole.

A handle of a serrated shape is formed on an outer circumferential surface of the dial portion, the handle is exposed to one side of the middle portion jig, and the height of the adjustment rod is adjusted according to the rotation of the dial portion.

A patch probe is formed at an end of the microstrip line, the patch probe is located at an upper portion of the waveguide, and the adjustment rod is located at an upper portion of the patch probe.

The first lower jig is formed with a slot corresponding to the position of the microstrip line so that the first lower jig and the microstrip line are spaced apart from each other.

And the second lower jig and the upper jig are formed with a rod hole into which the control rod is inserted.

The dial portion is formed with a groove or a hole, and an elastic body is coupled to the groove or the hole, and the dial portion is rotatable when a force of a specific value or more is applied.

The first lower jig, the second lower jig, the middle jig, and the upper jig are formed with a plurality of screw holes into which screws or fins are inserted.

The present invention is advantageous in that the resonance frequency can be easily tuned.

1 is a diagram showing a transition apparatus of the prior art.
2 is a perspective view of a waveguide-microstrip line transition apparatus according to a preferred embodiment of the present invention.
3 is a perspective view of a first lower jig of a waveguide-microstrip line transition apparatus according to a preferred embodiment of the present invention.
4 is a perspective view of a second lower jig of a waveguide-microstrip line transition device according to a preferred embodiment of the present invention.
5 is a perspective view of a middle jig of a waveguide-microstrip line transition apparatus according to an exemplary embodiment of the present invention.
6 is a perspective view of a dial portion of a waveguide-microstrip line transition device according to a preferred embodiment of the present invention.
7 is a perspective view of an adjustment rod of a waveguide-microstrip line transition apparatus according to an exemplary embodiment of the present invention.
FIG. 8 is a view illustrating a coupling between a middle jig and a dial portion and an adjustment rod of a waveguide-microstrip line transition device according to an exemplary embodiment of the present invention.
FIG. 9 is a perspective view of an upper jig of a waveguide-microstrip line transition apparatus according to a preferred embodiment of the present invention.
10 is a perspective view of a waveguide and a microstrip line substrate to which a waveguide-microstrip line transition apparatus according to a preferred embodiment of the present invention is applied.
FIG. 11 is a combined view of a waveguide-microstrip line transition device, a waveguide and a microstrip line substrate according to a preferred embodiment of the present invention.
12 is a view for explaining the inside of the waveguide of FIG.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It should be understood, however, that the invention is not intended to be limited to the particular embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component. Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings.

2 is a perspective view of a waveguide-microstrip line transition apparatus according to a preferred embodiment of the present invention.

2, the waveguide-microstrip line transition apparatus according to an exemplary embodiment of the present invention includes a first lower jig 100, a second lower jig 200, an intermediate jig 300, a dial portion 350 An adjustable rod 370, and an upper jig 400. As shown in FIG. The first lower jig 100, the second lower jig 200, the middle jig 300, and the upper jig 400 have a disk shape and are stacked and joined together. On the other hand, the dial portion 350 and the adjustment rod 370 are positioned at the center of the waveguide-microstrip line transition device, and can function to tune the resonance frequency of the antenna.

Hereinafter, each member will be described in detail with reference to the drawings.

3 is a perspective view of a first lower jig of a waveguide-microstrip line transition apparatus according to a preferred embodiment of the present invention.

Referring to FIG. 3, the first lower jig 100 has a disk shape, and a slot 110 extending from one side to the center is formed. The microstrip line may be positioned in the slot 110, and a patch probe may be positioned at the center. On the other hand, a waveguide may be positioned below the first lower jig 100, and a waveguide may be located at the center.

Also, a plurality of screw holes 120 and 130 may be formed in the first lower jig 100. A plurality of screws or pins for engagement can be inserted into the threaded holes 120, 130.

4 is a perspective view of a second lower jig of a waveguide-microstrip line transition device according to a preferred embodiment of the present invention.

Referring to FIG. 4, the second lower jig 200 has a disk shape, and a rod hole 210 may be formed at the center. A patch probe and a waveguide are positioned below the rod hole 210, and an adjustment rod can be inserted into the rod hole 210.

Also, a plurality of screw holes 220 and 230 may be formed in the second lower jig 200. A plurality of screws or pins for engaging can be inserted into the screw holes 220 and 230.

The second lower jig 200 may be omitted in some cases. When the second lower jig 200 is omitted, the first lower jig 100 may be formed thicker and the middle jig 300 may be coupled to the upper surface of the first lower jig 100.

5 is a perspective view of a middle jig of a waveguide-microstrip line transition apparatus according to an exemplary embodiment of the present invention.

Referring to FIG. 5, the intermediate jig 300 has a disk shape, and a dial hole 310 may be formed at the center thereof. A dial portion to be described later is coupled to the dial hole 310. A plurality of screw holes 320 and 330 may be formed in the intermediate jig 300 and a plurality of screws or pins for coupling may be inserted into the screw holes 320 and 330. [

6 is a perspective view of a dial portion of a waveguide-microstrip line transition device according to a preferred embodiment of the present invention.

Referring to FIG. 6, the dial portion 350 may have a sawtooth shape. A serrated handle is formed on the outer circumferential surface of the dial portion 350, and the dial portion 350 can be easily rotated from the outside due to the serrated handle. The degree of adjustment of the back shot can also be determined by the spacing between the threads and the number of teeth on the dial. A nut hole 360 is formed at the center of the dial portion 350, and a thread may be formed on the inner circumferential surface of the nut hole 360. In addition, a groove or a hole 353 may be formed in the dial portion 350. An elastic body is coupled to the groove or the hole 353 to increase the frictional force between the upper surface and the lower surface of the dial portion 350. Therefore, the dial portion can be rotated only by giving a force of a certain value or more, and in other cases, it can be fixed to the upper surface and the lower surface.

7 is a perspective view of an adjustment rod of a waveguide-microstrip line transition apparatus according to an exemplary embodiment of the present invention.

7, the adjustment rod 370 may include a bolt portion 373, a back short portion 375, and a protrusion 377. [ A thread corresponding to the thread formed on the inner circumferential surface of the nut hole 360 may be formed on the outer circumferential surface of the bolt portion 373 of the adjustment rod 370. [ Therefore, the bolt portion 373 of the adjustment rod 370 can be inserted and screwed into the nut hole 360. On the other hand, a back shot part 375 is formed to extend under the bolt part 373 and a protruding part 377 is formed to extend upward. The back shot portion 375 is inserted into the rod hole 210 of the second lower jig 200 and the projection 377 is inserted into the upper jig 400 so that the adjustment rod 370 is fixed not to rotate. Therefore, when the dial portion 350 rotates, the adjusting rod 370 does not rotate, so that the adjusting rod 370 can be moved upward or downward by the thread formed in the nut hole 360 and the bolt portion 373 .

FIG. 8 is a view illustrating a coupling between a middle jig and a dial portion and an adjustment rod of a waveguide-microstrip line transition device according to an exemplary embodiment of the present invention.

8, a dial portion 350 is inserted into the center of the intermediate portion jig 300, and an adjusting rod 370 is screwed into the center of the dial portion 350. Referring to FIG. Meanwhile, the serrated handle of the dial portion 350 may be exposed to one side of the intermediate portion jig 300.

FIG. 9 is a perspective view of an upper jig of a waveguide-microstrip line transition apparatus according to a preferred embodiment of the present invention.

Referring to FIG. 9, the upper jig 400 has a disk shape, and a rod hole 410 may be formed at the center. A patch probe and a waveguide are positioned below the rod hole 410, and an adjustment rod can be inserted into the rod hole 410.

Also, a plurality of screw holes 420 and 430 may be formed in the upper jig 400. A plurality of screws or pins for engagement can be inserted into the screw holes 420, 430.

2, the first lower jig 100, the second lower jig 200, the middle jig 300, and the upper jig 400 have a plurality of screw holes 120, 130, 220, 230, 320, 330, 420, and 430 may be inserted and coupled with a plurality of screws or pins. Some of the threaded holes may be combined with the waveguide.

Since the back short portion 375 and the protruding portion 377 of the adjustment rod 370 are fixed to the rod holes 210 and 410, the dial portion 350 exposed at one side of the intermediate portion jig 300 is rotated The adjustment rod 370 can be raised or lowered.

10 is a perspective view of a waveguide and a microstrip line substrate to which a waveguide-microstrip line transition apparatus according to a preferred embodiment of the present invention is applied.

Referring to FIG. 10, a microstrip line 510 connected to an antenna is formed on a substrate 500. At the end of the micro strip line 510, a patch probe 515 is formed. Meanwhile, the substrate 500 may also include a plurality of screw holes 520 and 530 for coupling with the waveguide-microstrip line transition device and the waveguide.

At the lower end of the waveguide 600, an input unit 610 through which a signal is input is formed. The input signal from the input unit 610 is transmitted along the waveguide 600 and the waveguide 600 is connected to the lower portion of the patch probe 510. The signals transmitted along the waveguide 600 may be transmitted to the patch probe 510 and transmitted to the antenna along the microstrip line 510.

FIG. 11 is a combined view of a waveguide-microstrip line transition device, a waveguide and a microstrip line substrate according to a preferred embodiment of the present invention.

Referring to FIG. 11, a waveguide-microstrip line transition apparatus according to an exemplary embodiment of the present invention may be coupled to the waveguide 600 and the substrate 500. A plurality of screws or fins are inserted into the plurality of screw holes 120, 130, 220, 230, 320, 330, 420 and 430 formed in the waveguide-microstrip line transition device to form the waveguide 600 and the substrate 500 ). ≪ / RTI > The microstrip line may be located in the slot 110 of the first lower jig 100 and the patch probe 515 may be positioned below the control rod 370. [ Particularly, the waveguide 600 is positioned below the load holes 210 and 410, and the size of the rod holes 210 and 410 and the size of the waveguide 600 may coincide with each other.

12 is a view for explaining the inside of the waveguide of FIG.

Referring to FIG. 12, in order for the signal transmitted through the waveguide 600 to be efficiently transmitted to the patch probe, the distance between the patch probe and the back shot should be? / 4 of the resonance frequency. Therefore, the distance between the patch probe and the back shot should be? / 4 of the frequency of the signal. 1, since the position of the back shot is the position of the bottom surface of the upper jig 2 in the prior art, the position of the back shot is set by the height of the lower jig 1. However, And it was impossible to adjust if the back shot was not positioned correctly.

In the waveguide-microstrip line transition apparatus according to the preferred embodiment of the present invention, since the position of the back shot is the end of the back short portion 375 of the adjustment rod 370, the dial portion 350 is rotated, ) Can be adjusted up and down to easily adjust the position of the back shot.

As described above, the present invention has been described with reference to particular embodiments, such as specific elements, and specific embodiments and drawings. However, it should be understood that the present invention is not limited to the above- Those skilled in the art will appreciate that various modifications and changes may be made thereto without departing from the scope of the present invention. Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .

100: first lower jig
110: Slot
120: screw hole
130: screw hole
200: second lower jig
210: Road hole
220: screw hole
230: screw hole
300: Middle jig
310: Dial hole
320: screw hole
330: screw hole
350: Dial portion
353: Groove or hole
360: Nut hole
370: Adjustable load
373: Bolt portion
375: back shot part
377:
400: upper jig
410: Road hole
420: screw hole
430: screw hole
500: substrate
510: Microstrip line
515: Patch probe
520: Screw hole
530: screw hole
600: Waveguide
610:

Claims (16)

A transition device for signal conversion between a waveguide and a microstrip line,
A lower jig coupled with the microstrip line and the waveguide;
An intermediate jig coupled to an upper surface of the lower jig;
An upper jig coupled to an upper surface of the intermediate jig; And
And an adjusting rod which is positioned above the waveguide and the microstrip line and is coupled with the intermediate jig,
Wherein the height of the tuning rod is adjustable. The method according to claim 1,
A dial hole is formed at the center of the intermediate jig,
And a dial portion inserted into the dial hole and rotatable,
Wherein a nut hole having a thread on an inner circumferential surface is formed at the center of the dial portion and a screw thread corresponding to a thread of the nut hole is formed on the outer circumferential surface of the adjusting rod and the adjusting rod is inserted into the nut hole. Microstrip line transition device. 3. The method of claim 2,
Wherein a handle of a sawtooth shape is formed on an outer circumferential surface of the dial portion, the handle is exposed to one side of the middle portion jig, and the height of the adjustment rod is adjusted in accordance with rotation of the dial portion. Device. The method according to claim 1,
Wherein a patch probe is formed at an end of the microstrip line, the patch probe is located at an upper portion of the waveguide, and the adjustment rod is positioned at an upper portion of the patch probe. The method according to claim 1,
Wherein the lower jig is formed with a slot corresponding to the position of the microstrip line so that the lower jig and the microstrip line are spaced apart from each other. The method according to claim 1,
Wherein the lower jig and the upper jig are formed with a rod hole into which the control rod is inserted. 3. The method of claim 2,
Wherein the dial portion is formed with a groove or a hole and an elastic body is coupled to the groove or hole so that the dial portion is rotatable when a force greater than a specific value is applied. The method according to claim 1,
Wherein the lower jig, the middle jig, and the upper jig are formed with a plurality of screw holes into which screws or pins are inserted. A transition device for signal conversion between a waveguide and a microstrip line,
A first lower jig coupled with the microstrip line and the waveguide;
A second lower jig coupled to an upper surface of the first lower jig;
An intermediate jig coupled to an upper surface of the second lower jig;
An upper jig coupled to an upper surface of the intermediate jig; And
And an adjusting rod which is positioned above the waveguide and the microstrip line and is coupled with the intermediate jig,
Wherein the height of the tuning rod is adjustable. 10. The method of claim 9,
A dial hole is formed at the center of the intermediate jig,
And a dial portion inserted into the dial hole and rotatable,
Wherein a nut hole having a thread on an inner circumferential surface is formed at the center of the dial portion and a screw thread corresponding to a thread of the nut hole is formed on the outer circumferential surface of the adjusting rod and the adjusting rod is inserted into the nut hole. Microstrip line transition device. 11. The method of claim 10,
Wherein a handle of a sawtooth shape is formed on an outer circumferential surface of the dial portion, the handle is exposed to one side of the middle portion jig, and the height of the adjustment rod is adjusted in accordance with rotation of the dial portion. Device. 10. The method of claim 9,
Wherein a patch probe is formed at an end of the microstrip line, the patch probe is located at an upper portion of the waveguide, and the adjustment rod is positioned at an upper portion of the patch probe. 10. The method of claim 9,
And a slot corresponding to a position of the microstrip line is formed in the first lower jig, so that the first lower jig and the microstrip line are spaced apart from each other. 10. The method of claim 9,
And the second lower jig and the upper jig are formed with a rod hole into which the control rod is inserted. 11. The method of claim 10,
Wherein the dial portion is formed with a groove or a hole and an elastic body is coupled to the groove or hole so that the dial portion is rotatable when a force greater than a specific value is applied. 10. The method of claim 9,
Wherein the first lower jig, the second lower jig, the middle jig, and the upper jig are formed with a plurality of threaded holes into which screws or fins are inserted.
KR1020170070871A 2017-06-07 2017-06-07 Transition Apparatus between Waveguide and Microstrip Line KR101874248B1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100280843B1 (en) 1992-11-10 2001-01-15 이데이 노부유끼 Waveguide-microstrip line mode transformer for microwave apparatus
JP2003298322A (en) 2002-03-29 2003-10-17 Shimada Phys & Chem Ind Co Ltd Waveguide/microstrip line transducer and transducer component
JP2007288568A (en) 2006-04-18 2007-11-01 Furuno Electric Co Ltd Waveguide/microstrip line converter and its method
JP2016225801A (en) 2015-05-29 2016-12-28 三菱電機株式会社 Waveguide microstrip line converter

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100280843B1 (en) 1992-11-10 2001-01-15 이데이 노부유끼 Waveguide-microstrip line mode transformer for microwave apparatus
JP2003298322A (en) 2002-03-29 2003-10-17 Shimada Phys & Chem Ind Co Ltd Waveguide/microstrip line transducer and transducer component
JP2007288568A (en) 2006-04-18 2007-11-01 Furuno Electric Co Ltd Waveguide/microstrip line converter and its method
JP2016225801A (en) 2015-05-29 2016-12-28 三菱電機株式会社 Waveguide microstrip line converter

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