CN110828953A - Signal transmission waveguide - Google Patents
Signal transmission waveguide Download PDFInfo
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- CN110828953A CN110828953A CN201911311043.0A CN201911311043A CN110828953A CN 110828953 A CN110828953 A CN 110828953A CN 201911311043 A CN201911311043 A CN 201911311043A CN 110828953 A CN110828953 A CN 110828953A
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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
- H01P3/12—Hollow waveguides
- H01P3/123—Hollow waveguides with a complex or stepped cross-section, e.g. ridged or grooved waveguides
Abstract
The invention relates to the technical field of microwave frequency converter testing, and provides a signal transmission waveguide. The signal transmission waveguide is provided with a waveguide transmission hole which is arranged in a penetrating mode and used for transmitting the waveguide on the front side face of the signal transmission waveguide, the signal transmission waveguide is connected with two waveguide steps which are symmetrically arranged on the hole wall of the waveguide transmission hole, each waveguide step comprises a 1 st step, a 2 nd step … … Mth step, M is larger than or equal to 2, the extending lengths of the 1 st step, a 2 nd step … … Mth step are sequentially decreased progressively, the front side openings of the two 1 st steps and the waveguide transmission hole are jointly enclosed to form a rectangular waveguide opening used for transmitting the rectangular waveguide, and the rear side opening of the waveguide transmission hole is formed along a circular waveguide opening used for transmitting the circular waveguide. The signal transmission waveguide can be compatible with the transmission of the measurement signals of the high frequency band and the low frequency band on the basis of less loss, so that the operation difficulty of the test of the microwave frequency converter can be reduced, and the accuracy of the test data of the microwave frequency converter can be improved.
Description
Technical Field
The invention relates to the technical field of microwave frequency converter testing, in particular to a signal transmission waveguide.
Background
The microwave frequency converter is widely applied to the field of satellite communication, and the product quality and indexes directly influence the signal receiving effect, so the microwave frequency converter needs to be tested before being put into use. In related industries, frequency division testing is carried out on a microwave frequency converter according to the working frequency band of the microwave frequency converter, wherein the microwave frequency converter and a signal source are connected through a signal transmission waveguide suitable for a low frequency band, and the signal transmission waveguide is adjusted through a frequency divider so as to transmit a measurement signal with the frequency range of 10.7-11.7 GHz to the microwave frequency converter; and/or connecting the microwave frequency converter and the signal source through a signal transmission waveguide suitable for the high frequency band, and adjusting the signal transmission waveguide through the frequency divider to send a measurement signal with the frequency range of 11.7-12.75 GHz to the microwave frequency converter. Therefore, the test of the microwave frequency converter has the problems of difficult and complicated operation and low precision.
Disclosure of Invention
The invention aims to provide a signal transmission waveguide, and aims to solve the problems that in the prior art, a microwave frequency converter needs to be subjected to frequency-band test, so that the test of the microwave frequency converter is difficult to operate and complicated and has low accuracy.
In order to achieve the purpose, the invention adopts the technical scheme that: a waveguide transmission hole which is arranged in a penetrating mode and used for transmitting waveguides is formed in the front side face of the signal transmission waveguide, two waveguide steps which are symmetrically arranged are connected to the hole wall of the waveguide transmission hole of the signal transmission waveguide, the waveguide steps comprise a 1 st step and a 2 nd step … … Mth step which are sequentially connected from front to back and respectively extend towards the other waveguide step, M is larger than or equal to 2, the extending lengths of the 1 st step, the 2 nd step … … and the Mth step are sequentially reduced, a rectangular waveguide port used for transmitting rectangular waveguides is formed by the two 1 st steps and the front side port of the waveguide transmission hole in a surrounding mode, and a circular waveguide port used for transmitting circular waveguides is formed on the rear side port of the waveguide transmission hole.
In one embodiment, the lengths of the 1 st step, the 2 nd step … … and the Mth step decrease in sequence in the left-right direction.
In one embodiment, the length of the 1 st step in the left-right direction is smaller than the radial dimension of the waveguide transmission hole.
In one embodiment, M-5.
In one embodiment, the rectangular waveguide port and the circular waveguide port are separated by a distance of 44.00 mm.
In one embodiment, the length of the 1 st step in the front-rear direction is 8.00mm, the length of the 2 nd step in the front-rear direction is 8.35mm, the length of the 3 rd step in the front-rear direction is 8.80mm, the length of the 4 th step in the front-rear direction is 9.25mm, and the length of the 5 th step in the front-rear direction is 8.76 mm.
In one embodiment, the waveguide transmission aperture has a radial dimension of 19.00 mm.
In one embodiment, the distance between the 1 st step is 9.50mm, the distance between the 2 nd step is 10.55mm, the distance between the 3 rd step is 13.16mm, the distance between the 4 th step is 16.16mm, and the distance between the 5 th step is 18.03 mm.
In one embodiment, the signal transmission waveguide comprises a waveguide body and a first connecting ring which is connected to the rear outer edge of the waveguide body and extends backwards, and the waveguide transmission hole and each waveguide step are arranged on the waveguide body.
In one embodiment, the signal transmission waveguide further includes a second connection ring connected to the outer edge of the front side of the waveguide body and extending outward, and the second connection ring of the signal transmission waveguide is provided with at least one connection hole penetrating through the second connection ring.
The invention has the beneficial effects that:
the signal transmission waveguide provided by the invention is connected with a signal source through a rectangular waveguide port formed by the common enclosure of the 1 st step and the front side port edge of the waveguide transmission hole, is connected with a microwave frequency converter through a circular waveguide port formed by the rear side port edge of the waveguide transmission hole, and performs impedance transformation on a measurement signal transmitted from the signal source to the microwave frequency converter through two symmetrically arranged step structures, so that the measurement signal input from the rectangular waveguide port is gradually transformed into a circular waveguide and then output from the circular waveguide port. Based on the two symmetrically arranged ladder structures, the signal transmission waveguide provided by the invention can be compatible with the transmission of the measurement signals of the high frequency band and the low frequency band on the basis of less loss, so that the measurement signals are transmitted to the microwave frequency converter from the signal source to test the microwave frequency converter, the operation difficulty of the test of the microwave frequency converter can be reduced, the test operation steps of the microwave frequency converter are simplified, and the accuracy of the test data of the microwave frequency converter is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a schematic perspective view of a signal transmission waveguide according to an embodiment of the present invention;
fig. 2 is a schematic perspective view of a signal transmission waveguide according to an embodiment of the present invention;
fig. 3 is a first schematic cross-sectional view of a signal transmission waveguide according to an embodiment of the present invention;
FIG. 4 is a schematic perspective cross-sectional view of the signal transmission waveguide provided in FIG. 3;
FIG. 5 is a rear view of a signal transmission waveguide provided by an embodiment of the present invention;
fig. 6 is a schematic cross-sectional view of a signal transmission waveguide according to an embodiment of the present invention.
Wherein, in the figures, the respective reference numerals:
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention.
It should be further noted that, in the embodiment of the present invention, the XYZ rectangular coordinate system established in fig. 1 is defined as follows: one side in the positive direction of the X axis is defined as the front, and one side in the negative direction of the X axis is defined as the back; one side in the positive Y-axis direction is defined as the left side, and one side in the negative Y-axis direction is defined as the right side; the side in the positive direction of the Z axis is defined as the upper side, and the side in the negative direction of the Z axis is defined as the lower side.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
The following describes a specific implementation of the present invention in more detail with reference to specific embodiments:
referring to fig. 1 and 3-4, an embodiment of the present invention provides a signal transmission waveguide, a waveguide transmission hole 101 penetrating through the signal transmission waveguide and used for transmitting a waveguide is formed in a front side surface of the signal transmission waveguide, the signal transmission waveguide is connected with two waveguide steps 110 symmetrically arranged on a hole wall of the waveguide transmission hole 101, each waveguide step 110 includes a 1 st step 111 and a 2 nd step 112 … … mth step which are sequentially connected from front to back and respectively extend toward the other waveguide step 110, M is greater than or equal to 2, the extending lengths of the 1 st step 111 and the 2 nd step 112 … … mth step are sequentially decreased in a decreasing manner, a rectangular waveguide port 102 used for transmitting a rectangular waveguide is formed by the common surrounding of front side ports of the two 1 st steps 111 and the waveguide transmission hole 101, and a circular waveguide port 103 used for transmitting a circular waveguide is formed along a rear side port of the waveguide transmission hole 101.
It should be noted that the cross-sectional shape of the waveguide transmission hole 101 is circular, and therefore, the rear side opening of the waveguide transmission hole 101 is also circular along the circular waveguide opening 103, and the circular waveguide opening 103 can be used for connecting with the microwave frequency converter to be tested so as to output the circular waveguide measurement signal to the microwave frequency converter. The two waveguide steps 110 are symmetrically disposed on the upper and lower walls of the waveguide transmission hole 101, wherein the waveguide step 110 located on the upper side extends downward, and the waveguide step 110 located on the lower side extends upward. The 1 st step 111 of the waveguide step 110 is arranged close to the front side port edge of the waveguide transmission hole 101, the lower side surface of the 1 st step 111 of the waveguide step 110 relatively positioned on the upper side, the upper side surface of the 1 st step 111 of the waveguide step 110 relatively positioned on the lower side and the front side port edge of the waveguide transmission hole 101 jointly enclose to form an annular runway-shaped rectangular waveguide port 102, and the rectangular waveguide port 102 can be used for being connected with a signal source so as to transmit a test signal to a microwave frequency converter through a signal transmission waveguide. When a test signal is input into the rectangular waveguide port 102 through a signal source, the test signal is a rectangular waveguide, and the measurement signal is gradually converted into a circular waveguide measurement signal through two symmetrically arranged step structures in the process of being transmitted from the rectangular waveguide port 102 to the circular waveguide port 103 along the signal transmission waveguide, and is transmitted to the microwave frequency converter to be tested from the circular waveguide port 103. The signal transmission between the signal source and the microwave frequency converter is realized through the signal transmission waveguide, the transmission attenuation of the signal can be reduced, the loss of the test signal in the transmission process is effectively reduced, and therefore the accuracy of the test data of the microwave frequency converter can be improved to a certain extent.
It should be noted that the 1 st step 111 extends downward/upward longer than the 2 nd step 112, and the 2 nd step 112 extends downward/upward longer than the 3 rd step 113 and the M-1 st step 113 extends downward/upward longer than the M th step. Based on two oppositely arranged and symmetrically arranged stepped structures, on one hand, the impedance of the waveguide can be gradually changed in the process of transmitting a measuring signal from the rectangular waveguide port 102 to the circular waveguide port 103, so that impedance matching is realized at the front end and the rear end of the signal transmission waveguide, the phenomena of reflection, ringing, ground bounce, crosstalk and the like of the measuring signal in the transmission process can be effectively avoided, the attenuation condition of the measuring signal can be effectively reduced, the integrity of the measuring signal is improved, and the accuracy of the test data of the microwave frequency converter is further improved; on the other hand, the two stepped structures are symmetrically arranged on the hole wall of the waveguide transmission hole 101, the waveguide transmission hole 101 reserves a large adjustment space for size adjustment of the stepped structures, and the signal transmission waveguide can be compatible with transmission of measurement signals of a high frequency band and a low frequency band by adjusting the size of the stepped structures, so that the signal transmission waveguide can be suitable for testing of a microwave frequency converter of a full frequency band (the working frequency band is 10.7-12.75 GHz), and can also be suitable for testing of a microwave frequency converter of a single frequency band (the working frequency band is 12.2-12.75 GHz, 11.7-12.75 GHz or 10.7-11.7 GHz, and the like), so that the frequency division band of the microwave frequency converter is not required to be tested, the operation difficulty of the test of the microwave frequency converter can be reduced to a certain extent, the test operation process of the microwave frequency converter is simplified, and the accuracy of test data of the microwave frequency converter can be further improved.
The signal transmission waveguide provided by the embodiment of the invention is connected with a signal source through a rectangular waveguide port 102 formed by enclosing a 1 st step 111 and a front side port edge of a waveguide transmission hole 101 together, is connected with a microwave frequency converter through a circular waveguide port 103 formed by a rear side port edge of the waveguide transmission hole 101, and performs impedance transformation on a measurement signal transmitted from the signal source to the microwave frequency converter through two symmetrically arranged step structures, so that the measurement signal input from the rectangular waveguide port 102 is gradually transformed into a circular waveguide measurement signal and then is output from the circular waveguide port 103. Based on the two symmetrically arranged ladder structures, the signal transmission waveguide provided by the embodiment of the invention can be compatible with the transmission of the measurement signals of the high frequency band and the low frequency band on the basis of less loss, so that the measurement signals are transmitted to the microwave frequency converter from the signal source to test the microwave frequency converter, the operation difficulty of the test of the microwave frequency converter can be reduced, the test operation steps of the microwave frequency converter are simplified, and the accuracy of the test data of the microwave frequency converter is improved.
Referring to fig. 1 and 5-6, in the present embodiment, the lengths of the 1 st step 111 and the 2 nd step 112 … … in the mth step decrease in the left-right direction. It should be noted that, by sequentially decreasing the lengths of the 1 st step 111 and the 2 nd step 112 … … M in the left-right direction, on one hand, the size of the space enclosed by the two M-th steps and the hole wall of the waveguide transmission hole 101 can be gradually increased from front to back, so that the mode of the measurement signal can be gradually changed, and the measurement signal can be changed and transmitted under the conditions of small reflection and little attenuation; on the other hand, as the size of the 1 st step 111 and the 2 nd step 112 … … M in the left-right direction becomes smaller, the interruption susceptance generated at the discontinuity of the waveguide by the test signal can be offset and corrected by using the hole wall of the waveguide transmission hole 101 and the size change of the 1 st step 111 and the 2 nd step 112 … … M in the left-right direction, so that the phenomena of reflection, ringing, ground bounce, crosstalk and the like of the test signal in the transmission process can be further reduced, the attenuation condition of the test signal can be further reduced, the integrity of the test signal is improved, and the accuracy of the test data of the microwave frequency converter can be further improved.
Referring to fig. 1 and 5-6, in the present embodiment, the length of the 1 st step 111 in the left-right direction is smaller than the radial dimension of the waveguide transmission hole 101. It should be noted here that, by setting the length of the 1 st step 111 in the left-right direction to be smaller than the radial dimension of the waveguide transmission hole 101, the length of the 1 st step 111 and the 2 nd step 112 … … in the left-right direction to be smaller than the radial dimension of the waveguide transmission hole 101, on the basis, on one hand, a space for the measurement signal to be transmitted can be reserved, that is, a sufficient space is reserved between the two mth steps and the hole wall of the waveguide transmission hole 101, so that while effective and small attenuation transmission of the test signal is ensured, transformation of the measurement signal is effectively realized through a step structure, and impedance matching is realized at the front end and the rear end of the signal transmission waveguide; on the other hand, the smooth hole wall of the waveguide transmission hole 101 and the two mth steps together enclose a space for transmission and transformation of the measurement signal, so that the reflection phenomenon of the measurement signal during transmission in the signal transmission waveguide can be further reduced, the attenuation condition of the measurement signal can be further reduced, the integrity of the measurement signal is improved, and the accuracy of the test data of the microwave frequency converter is further improved.
Referring to fig. 2-4, in the present embodiment, M is 5. It should be noted that the step structure of the present embodiment includes a 1 st step 111, a 2 nd step 112, a 3 rd step 113, a 4 th step 114, and a 5 th step 115, and based on the arrangement of the present embodiment, transmission and conversion of the measurement signal can be realized at a higher speed and with lower reflection and attenuation through transition conversion of 5 stages, so that the test efficiency of the microwave frequency converter can be improved on the basis of ensuring the accuracy of the test data of the microwave frequency converter, and the test operation process of the microwave frequency converter can be further simplified to a certain extent.
Referring to fig. 3-4 and 6, in the present embodiment, the rectangular waveguide port 102 and the circular waveguide port 103 are spaced apart by a distance of 44.00 mm. It should be noted that, when the distance between the rectangular waveguide port 102 and the circular waveguide port 103 is smaller than 44.00mm, the size of the signal transmission waveguide is small, which is not favorable for accurately ensuring the impedance matching degree between the front end and the rear end of the signal transmission waveguide, i.e. for ensuring the integrity of the measurement signal; on the other hand, the processing difficulty of the signal transmission waveguide is greatly increased, the structural strength is reduced, and the performance ratio of the signal transmission waveguide is reduced to a certain extent. When the distance between the rectangular waveguide port 102 and the circular waveguide port 103 is greater than 44.00mm, the size of the signal transmission waveguide is relatively long, which increases the risk of loss of the measurement signal during transmission to some extent. Therefore, by setting the distance between the rectangular waveguide port 102 and the circular waveguide port 103 to 44.00mm, smooth transmission and conversion of the measurement signal can be ensured on the basis of ensuring the impedance matching degree between the front end and the rear end of the signal transmission waveguide to ensure the integrity of the measurement signal, and the risk of loss of the measurement signal in the transmission process can be effectively reduced, so that the signal transmission waveguide has high use performance.
Referring to fig. 3-4 and 6, in the present embodiment, the length of the 1 st step 111 in the front-back direction is 8.00mm, the length of the 2 nd step 112 in the front-back direction is 8.35mm, the length of the 3 rd step 113 in the front-back direction is 8.80mm, the length of the 4 th step 114 in the front-back direction is 9.25mm, and the length of the 5 th step 115 in the front-back direction is 8.76 mm. It should be noted that, based on the configuration of this embodiment, the impedances of the 1 st step 111, the 2 nd step 112, the 3 rd step 113, the 4 th step 114, and the 5 th step 115 can be accurately balanced, and a required reflection coefficient response can be obtained, so that the mode conversion and transmission of the measurement signal can be realized on the basis of less reflection and higher standing-wave ratio, and the accuracy of the test data of the microwave frequency converter can be improved to a certain extent; the test device can also ensure that the signal transmission waveguide can be compatible with the transmission of the measurement signals of a high frequency band and a low frequency band, so that the signal transmission waveguide can be suitable for the test of a full-frequency-band (the working frequency band is 10.7-12.75 GHz) microwave frequency converter, and can also be suitable for the test of a single frequency band (the working frequency band is 12.2-12.75 GHz, 11.7-12.75 GHz or 10.7-11.7 GHz, and the like), thereby the test of the frequency division band of the microwave frequency converter is not needed, the operation difficulty of the test of the microwave frequency converter can be reduced to a certain extent, the test operation process of the microwave frequency converter is simplified, and the accuracy of the test data of the microwave frequency converter can be further improved.
Referring to fig. 3-4 and 6, in the present embodiment, the radial dimension of the waveguide transmission hole 101 is 19.00 mm. It should be noted that, by setting the radial dimension of the waveguide transmission hole 101 to be 19.00mm, that is, by setting the radial dimension of the circular waveguide port 103 to be 19.00mm, the output mode of the measurement signal can be effectively and reliably limited, and based on the setting of the embodiment, the signal transmission waveguide can be adapted to the test of many types of microwave frequency converters, so that the application range of the signal transmission waveguide is improved.
Referring to fig. 3-5, in the present embodiment, the distance between the two 1 st steps 111 is 9.50mm, the distance between the two 2 nd steps 112 is 10.55mm, the distance between the two 3 rd steps 113 is 13.16mm, the distance between the two 4 th steps 114 is 16.16mm, and the distance between the two 5 th steps 115 is 18.03 mm. It should be noted here that, based on the configuration of this embodiment, the impedances of the 1 st step 111, the 2 nd step 112, the 3 rd step 113, the 4 th step 114, and the 5 th step 115 can be further accurately determined, and the impedance transformation conditions of the 1 st step 111, the 2 nd step 112, the 3 rd step 113, the 4 th step 114, and the 5 th step 115 are balanced to obtain a required reflection coefficient response, so that the mode transformation and transmission of the measurement signal can be further ensured to be realized on the basis of less reflection and higher standing-wave ratio, and the accuracy of the test data of the microwave frequency converter is further improved; the test method can further ensure that the signal transmission waveguide can be compatible with the transmission of the measurement signals of the high frequency band and the low frequency band, so that the signal transmission waveguide can be suitable for the test of the microwave frequency converter of the full frequency band (the working frequency band is 10.7-12.75 GHz), and can also be suitable for the test of the microwave frequency converter of the single frequency band (the working frequency band is 12.2-12.75 GHz, 11.7-12.75 GHz or 10.7-11.7 GHz, and the like), thereby the test of the frequency division band of the microwave frequency converter is not needed, the application range of the signal transmission waveguide is improved, the operation difficulty of the test of the microwave frequency converter is reduced, the test operation process of the microwave frequency converter is simplified, and the accuracy of the test data of the microwave frequency converter can be further improved.
Referring to fig. 1-3, in the present embodiment, the signal transmission waveguide includes a waveguide body 100 and a first connection ring 200 connected to the outer edge of the rear side of the waveguide body 100 and extending backward, and the waveguide transmission hole 101 and each waveguide step 110 are disposed on the waveguide body 100. It should be noted here that, by the arrangement of the first connection ring 200, on one hand, the connection convenience between the signal transmission waveguide and the microwave frequency converter or another signal transmission waveguide can be effectively improved, so that the use performance of the signal transmission waveguide can be further improved; on the other hand, the loss condition of the measuring signal when the measuring signal is transmitted from the signal transmission waveguide to the microwave frequency converter or another signal transmission waveguide can be reduced, so that the precision of the test data of the microwave frequency converter can be further improved.
Referring to fig. 1-3, in the present embodiment, the signal transmission waveguide further includes a second connection ring 300 connected to the outer edge of the front side of the waveguide body 100 and extending outward, and at least one connection hole 301 penetrating through the second connection ring 300 is formed in the signal transmission waveguide. It should be noted here that, by the arrangement of the second connection ring 300 and each connection hole 301, the connection convenience between the signal transmission waveguide and the signal source can be effectively improved, so that the use performance of the signal transmission waveguide can be further improved; on the other hand, the loss condition of the measuring signal when the measuring signal is transmitted from the signal source to the signal transmission waveguide can be reduced, so that the accuracy of the test data of the microwave frequency converter can be further improved.
The signal transmission waveguide provided by the embodiment of the invention is connected with a signal source through a rectangular waveguide port 102 formed by enclosing a 1 st step 111 and a front side port edge of a waveguide transmission hole 101 together, is connected with a microwave frequency converter through a circular waveguide port 103 formed by a rear side port edge of the waveguide transmission hole 101, and performs impedance transformation on a measurement signal transmitted from the signal source to the microwave frequency converter through two symmetrically arranged step structures, so that the measurement signal input from the rectangular waveguide port 102 is gradually transformed into a circular waveguide and then output from the circular waveguide port 103. Based on the two symmetrically arranged ladder structures, the signal transmission waveguide provided by the embodiment of the invention can be compatible with the transmission of the measurement signals of the high frequency band and the low frequency band on the basis of less loss, so that the measurement signals are transmitted to the microwave frequency converter from the signal source to test the microwave frequency converter, the operation difficulty of the test of the microwave frequency converter can be reduced, the test operation steps of the microwave frequency converter are simplified, and the accuracy of the test data of the microwave frequency converter is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A signal transmission waveguide is characterized in that a waveguide transmission hole which is arranged in a penetrating mode and used for transmitting a waveguide is formed in the front side face of the signal transmission waveguide, two waveguide steps which are symmetrically arranged are connected to the hole wall of the waveguide transmission hole of the signal transmission waveguide, each waveguide step comprises a 1 st step and a 2 nd step … … Mth step which are sequentially connected from front to back and respectively extend towards the other waveguide step, M is larger than or equal to 2, the extending lengths of the 1 st step, the 2 nd step … … and the Mth step are sequentially reduced in a descending mode, a rectangular waveguide port used for transmitting a rectangular waveguide is formed by the two 1 st steps and the front side port edge of the waveguide transmission hole in a surrounding mode, and a circular waveguide port used for transmitting a circular waveguide is formed by the rear side port edge of the waveguide transmission hole.
2. The signal transmission waveguide of claim 1 wherein the 1 st step, the 2 nd step … …, and the mth step decrease in length in the left-right direction in sequence.
3. The signal transmission waveguide of claim 2 wherein the length of the 1 st step in the left-right direction is less than the radial dimension of the waveguide transmission hole.
4. The signal transmission waveguide of claim 1 wherein M-5.
5. The signal-transmitting waveguide of claim 4 wherein the rectangular waveguide port and the circular waveguide port are separated by a distance of 44.00 mm.
6. The signal transmission waveguide of claim 5 wherein the length of the 1 st step in the front-to-back direction is 8.00mm, the length of the 2 nd step in the front-to-back direction is 8.35mm, the length of the 3 rd step in the front-to-back direction is 8.80mm, the length of the 4 th step in the front-to-back direction is 9.25mm, and the length of the 5 th step in the front-to-back direction is 8.76 mm.
7. The signal transmission waveguide of claim 4 wherein the radial dimension of the waveguide transmission aperture is 19.00 mm.
8. The signal transmission waveguide of claim 7 wherein said 1 st step is spaced apart by 9.50mm, said 2 nd step is spaced apart by 10.55mm, said 3 rd step is spaced apart by 13.16mm, said 4 th step is spaced apart by 16.16mm, and said 5 th step is spaced apart by 18.03 mm.
9. The signal transmission waveguide of any one of claims 1 to 8 wherein the signal transmission waveguide comprises a waveguide body and a first connecting ring connected to a rear outer edge of the waveguide body and extending rearward, the waveguide transmission hole and each of the waveguide steps being provided in the waveguide body.
10. The signal transmission waveguide of claim 9 further comprising a second coupling ring connected to the outer edge of the front side of the waveguide body and extending outward, wherein the second coupling ring defines at least one connecting hole therethrough.
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| CN201911311043.0A CN110828953A (en) | 2019-12-18 | 2019-12-18 | Signal transmission waveguide |
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| CN201911311043.0A CN110828953A (en) | 2019-12-18 | 2019-12-18 | Signal transmission waveguide |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112928414A (en) * | 2021-01-27 | 2021-06-08 | 波达通信设备（广州）有限公司 | Waveguide transmission device and transmission system |
| CN113745774A (en) * | 2021-08-27 | 2021-12-03 | 西安交通大学 | Circular waveguide TE11-TM01 hybrid mode exciter working in X wave band and design method |
| CN113745772A (en) * | 2021-08-27 | 2021-12-03 | 西安交通大学 | Rectangular waveguide TE 10-circular waveguide TM01 mode converter working in C wave band and conversion method |
-
2019
- 2019-12-18 CN CN201911311043.0A patent/CN110828953A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112928414A (en) * | 2021-01-27 | 2021-06-08 | 波达通信设备（广州）有限公司 | Waveguide transmission device and transmission system |
| CN112928414B (en) * | 2021-01-27 | 2022-02-11 | 波达通信设备（广州）有限公司 | Waveguide transmission device and transmission system |
| CN113745774A (en) * | 2021-08-27 | 2021-12-03 | 西安交通大学 | Circular waveguide TE11-TM01 hybrid mode exciter working in X wave band and design method |
| CN113745772A (en) * | 2021-08-27 | 2021-12-03 | 西安交通大学 | Rectangular waveguide TE 10-circular waveguide TM01 mode converter working in C wave band and conversion method |
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