CN210109215U - Sliding rail type non-metal ring antenna test system - Google Patents
Sliding rail type non-metal ring antenna test system Download PDFInfo
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- CN210109215U CN210109215U CN201920046547.3U CN201920046547U CN210109215U CN 210109215 U CN210109215 U CN 210109215U CN 201920046547 U CN201920046547 U CN 201920046547U CN 210109215 U CN210109215 U CN 210109215U
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Abstract
The utility model discloses a slide rail type non-metal ring antenna test system, which comprises a computer, a control module, a measuring instrument, a radio frequency unit, a support mechanism of high-strength non-metal material, a circular arc slide rail of non-metal material, a probe, a first and a second driving devices and a rotary table, wherein the rotary table is rotatably provided with a measured object positioning device, the support mechanism is fixedly arranged above the rotary table, the slide rail is fixed on the support mechanism, the probe is slidably arranged on the slide rail and is always opposite to a measured object on the rotary table to scan in the sliding process of the probe, the computer is respectively electrically connected with the measuring instrument and the control module, the measuring instrument can be electrically connected with the probe and the measured object through the radio frequency unit, the first and the second driving devices respectively drive the probe and the measured object positioning device to move, and the control module controls the first and the second driving devices to work, the utility model improves the consistency of, the scattering interference of metal in the system is reduced, and the measurement precision of the test system in a low frequency band is improved.
Description
Technical Field
The utility model relates to an antenna test system, in particular to non-metallic ring antenna test system of slide rail formula.
Background
In the present test environment, passive and OTA testing of antennas, the present test field is typically at a starting test frequency of 400MHz, as determined by the design inside the test field of today.
The existing antenna test system in the market is mainly a multi-probe test system, and a supporting mechanism of a probe array adopts a metal ring structure. The main reasons for using a metal ring structure are two: firstly, in the multi-probe antenna test field, the antenna test probe has large weight and size, and needs more articles such as attached wave-absorbing materials and the like, and an annular supporting mechanism needs to bear load to a certain degree; secondly, the radio frequency cable connected to the antenna test probe needs to pass through the interior of the ring body and then be connected to the radio frequency matrix switch. Along with antenna probe quantity increase, the radio frequency that corresponds links the cable and also can increase, and the bearing requirement of test ring also increases, adopts the metal material design, can ensure the stability of test ring.
However, in the test frequency band below 400MHz, the material of the metal structure appearing in the test field affects the test, resulting in the reduction of the accuracy of the test result. The traditional method for solving the problem of metal material interference is to add a wave-absorbing material on the surface of metal to reduce interference signals such as scattering of the metal material, but the wave-absorbing material has very limited improvement in low frequency (such as 70-400MHz), and the inconsistency caused by a plurality of probes increases the difficulty of probe calibration and seriously affects the improvement of test precision, so a new method is needed to solve the problem.
SUMMERY OF THE UTILITY MODEL
In order to compensate the above deficiency, the utility model provides a nonmetal ring antenna test system of slide rail formula, the use of metal material has been avoided to the at utmost to this nonmetal ring antenna test system of slide rail formula, has reduced the scattering interference of metal in the system, has improved the measurement accuracy of test system at low frequency range (70MHz-400 MHz).
The utility model discloses a solve the technical scheme that its technical problem adopted and be: a slide rail type non-metal ring antenna test system comprises a computer, a control module, a measuring instrument, a radio frequency unit, a supporting mechanism made of high-strength non-metal materials, an arc-shaped slide rail made of non-metal materials, a probe, a first driving device, a second driving device and a rotary table, wherein a measured object positioning device is rotatably arranged on the rotary table, a supporting mechanism fixing frame is arranged above the rotary table, the arc-shaped slide rail is fixedly arranged on the supporting mechanism, the probe can be slidably arranged on the arc-shaped slide rail and is always aligned to a measured object on the rotary table to scan in the sliding process of the probe, the computer is respectively electrically connected with the measuring instrument and the control module, the measuring instrument can be electrically connected with the probe and the measured object on the rotary table through the radio frequency unit, the first driving device and the second driving device respectively drive the probe and the measured object positioning, the control module controls the first driving device and the second driving device to work.
As a further improvement of the present invention, the support mechanism is an annular structure made of a low dielectric constant material.
As a further improvement, the slider that non-metallic material made can be gliding on the convex slide rail that non-metallic material made is equipped with, and probe fixed mounting is on the slider.
As a further improvement of the utility model, the measured object on the turntable is just positioned at the circle center of the arc-shaped slide rail.
As a further improvement of the utility model, the shape of the arc-shaped slide rail is a circular ring structure, a semicircular ring structure or an 1/4 circular ring structure.
As a further improvement, the arc-shaped sliding rail is formed by splicing two semi-circular ring structures or a plurality of 1/4 circular ring structures.
As a further improvement of the utility model, the probe is one of a single polarization fiber probe and a dual polarization fiber probe.
As a further improvement, the probe comprises a miniature radiation unit, an electro-optical conversion unit, a photoelectric conversion unit, an optical fiber power supply unit and an optical fiber, the electro-optical conversion unit is connected with the photoelectric conversion unit through the optical fiber, the optical fiber power supply unit is connected with the electro-optical conversion unit through the optical fiber, and the miniature radiation unit is connected with the photoelectric conversion unit to supply power to the electro-optical conversion module.
As the utility model discloses a further improvement, the computer is PC or industrial computer, and the computer passes through GPIB or USB standard interface and links to each other with test instrument and control module, and test instrument passes through radio frequency interface and probe and is surveyed the piece and link to each other.
As a further improvement, the device for positioning the object to be measured is a rotary platform.
The utility model has the beneficial technical effects that: the utility model discloses an adopt the convex slide rail that high strength non-metallic material's supporting mechanism and non-metallic material made to realize the slide orientation of probe, the probe can be gliding installs on the convex slide rail that non-metallic material made, the probe slides the in-process and realizes the data scanning to the 3D sphere of being surveyed the piece, the miniaturized fiber probe of probe for adopting the optic fibre power supply simultaneously, the coaxial feeder of metal has been replaced to optic fibre, the probe is small in quantity, the weight of probe on supporting mechanism has been reduced, it is out of shape to have guaranteed that supporting mechanism is not taken place at the probe slip in-process, this kind of structure has not only improved the uniformity of probe in the test procedure, still avoided the appearance of metal in whole measurement system to the at utmost, the scattering interference of metal in the system has been reduced, the measurement accuracy of test system at low frequency range (70MHz-400MHz) has been improved. Meanwhile, the probe can be flexibly replaced by using a slide rail type structure, and the application range of the probe is wider compared with that of a fixed probe; additionally, the utility model discloses a slide rail slides the probe to the low side, does not lead to the fact the influence to adjacent test system, other antenna test systems of compatible that can be very easy and then combine to be compound test system.
Drawings
FIG. 1 is a block diagram of the system of the present invention;
fig. 2 is a schematic view of a first embodiment of the present invention;
fig. 3 is a schematic view of a second embodiment of the present invention;
fig. 4 is a schematic view of a third embodiment of the present invention;
fig. 5 is a schematic view of a fourth embodiment of the present invention;
fig. 6 is a schematic view of a fifth embodiment of the present invention.
Detailed Description
Example (b): a slide rail 2 type non-metal ring antenna test system comprises a computer 5, a control module 8, a measuring instrument 9, a radio frequency unit 10, a support mechanism 4 made of high-strength non-metal materials, an arc slide rail 2 made of non-metal materials, a probe 1, a first driving device, a second driving device and a rotary table 6, wherein a measured object positioning device is rotatably arranged on the rotary table 6, the support mechanism 4 is fixedly erected above the rotary table 6, the arc slide rail 2 is fixedly arranged on the support mechanism 4, the probe 1 is slidably arranged on the arc slide rail 2, the probe 1 is always aligned to a measured object on the rotary table 6 in the sliding process, the computer 5 is respectively electrically connected with the measuring instrument 9 and the control module 8, the measuring instrument 9 can be electrically connected with the probe 1 and the measured object 7 on the rotary table 6 through the radio frequency unit 10, the first driving device and the second driving device respectively drive the probe 1 and the measured object positioning device to move, and the control module 8 controls the first driving device and the second driving device to work.
During testing, the computer 5 sends an instruction to the measuring instrument 9 and the control module 8, the measuring instrument 9 communicates with the probe 1 and the control module 8 through the radio frequency unit 10, the control module 8 controls the turntable 6 to drive the tested piece to rotate and simultaneously controls the probe 1 to slide, so as to realize data scanning of the probe 1, the testing system adopts high-strength non-metal materials to manufacture the supporting mechanism 4 to realize supporting and positioning of the arc-shaped sliding rail 2 made of non-metal materials, the arc-shaped sliding rail 2 is installed on the supporting mechanism, the probe 1 can be slidably installed on the arc-shaped sliding rail 2 made of non-metal materials to realize data scanning of the tested piece on the turntable 6, the system realizes data scanning of the tested piece through sliding of one probe 1 on the supporting mechanism 4, the use of a plurality of probes 1 is avoided, the number of probes 1 is reduced, and the burden of the weight of the probe 1 on the supporting mechanism 4 is, the deformation of the supporting mechanism 4 is avoided, the consistency of the probe 1 in the test process is improved, meanwhile, the occurrence of metal is avoided to the greatest extent in the whole measurement system, the scattering interference of the metal in the system is reduced, the measurement precision of the test system in a low frequency band (70MHz-400MHz) is improved), and particularly, the problem of metal interference of low-frequency antenna test is solved.
The support mechanism 4 is an annular structure made of a low dielectric constant material. Wherein, the low dielectric constant material can be ceramic or macromolecular material, and supporting mechanism 4 forms the loop configuration, and its support intensity is high, and difficult emergence is out of shape, ensures that probe 1 sliding track is accurate.
The arc-shaped sliding rail 2 is provided with a sliding block 3 made of a non-metal material in a sliding manner, and the probe 1 is fixedly arranged on the sliding block 3. The probe 1 is matched with the tested piece in a sliding manner along the circular arc-shaped sliding rail 2 to rotate in the circumferential direction, 3D spherical data scanning of the tested piece is achieved, the accuracy of the motion track of the probe 1 is guaranteed through the matching of the circular arc-shaped sliding rail 2 and the sliding block 3, the data scanning accuracy is further improved, the circular arc-shaped sliding rail 2 and the sliding block 3 are made of non-metal materials, the use of metal materials is further reduced, the shape of the sliding rail 2 made of the non-metal materials can be changed, the system can be extended and used for a plane field antenna testing system, a cylindrical field antenna testing system and the like, various electromagnetic radiation parameters of a low-frequency antenna can be tested, and the application.
The measured object on the rotary table 6 is just positioned on the center of the circular arc slide rail 2. The probe 1 rotates around the center of the sliding rail 2, and the direction of the probe 1 always points to the center of the circular arc sliding rail 2 in the rotating process, so that 3D scanning of a measured object 7 is realized.
The arc-shaped slide rail 2 is in a circular structure, a semicircular structure or an 1/4 circular structure. Different shapes of the arc-shaped slide rail 2 are selected according to different test requirements, and the arc-shaped slide rail 2 can also be in other shapes such as a major arc structure and the like besides the above shapes.
The arc-shaped sliding rail 2 is formed by splicing two semi-circular structures or a plurality of 1/4 circular structures. A plurality of different circular arc ring bodies can work in different frequency bands, and different polarization directions are adopted, so that different test requirements are met.
The probe 1 is one of a single-polarization optical fiber probe 1 and a dual-polarization optical fiber probe 1. The miniaturized probe 1 powered by the optical fiber is adopted, the optical fiber is used for replacing a metal coaxial feeder, the use of metal materials is further reduced, the scattering interference of metal in a system is reduced, and the testing precision is improved.
The probe 1 comprises a miniature radiation unit, an electro-optical conversion unit, a photoelectric conversion unit, an optical fiber power supply unit and an optical fiber, wherein the electro-optical conversion unit is connected with the photoelectric conversion unit through the optical fiber, the optical fiber power supply unit is connected with the electro-optical conversion unit through the optical fiber and supplies power to an electro-optical conversion module, and the miniature radiation unit is connected with the photoelectric conversion unit.
The computer 5 is a PC or an industrial personal computer, the computer 5 is connected with a test instrument and a control module 8 through a GPIB or USB standard interface, and the test instrument is connected with the probe 1 and the tested piece 7 through a radio frequency interface. The computer 5 of the test system is a PC or an industrial personal computer, and is used for controlling each system module, acquiring data and processing the data; the computer 5 can control the test bench to rotate a certain angle through the control module 8 to carry out multi-directional measurement on the antenna, and in the specific test process, the computer 5 is connected with a test instrument (such as a network analyzer) through standard interfaces such as GPIB or USB; is connected with each control module 8 (such as a turntable 6 controller, a turntable 6 driver and the like) through a control interface; the test instrument is connected with each radio frequency unit 10, the probe 1, the tested piece and the like through a radio frequency interface; the computer 5 can control various testing instruments, radio frequency equipment, the probe 1, the sliding block 3 to slide on the sliding rail 2, the tested object rotary table 6 and the like, so that the data scanning of the 3D spherical surface (or partial spherical surface) is realized, wherein the data scanning comprises the scanning of data such as amplitude, phase and the like.
The measured object positioning device is a rotary platform. Besides the rotary platform, the rotary platform can also be a holding pole.
Example 1: as shown in fig. 2, the optical fiber probe 1 is fixed on a sliding rail 2 made of a non-metal material through a sliding block 3 made of a non-metal material, the annular supporting mechanism 4 made of a non-metal material is approximately a full ring, the sliding rail is fixed on the non-metal annular supporting mechanism 4, the optical fiber probe 1 can rotate around the center of the sliding rail 2 on the sliding rail along with the sliding block 3, and an optical fiber connected with the optical fiber probe 1 is connected with a remote computer along the annular supporting mechanism 4; the tested piece 7 is placed on the rotary table 6, and the rotary table, the slide rail and each radio frequency unit are directly connected with the computer 5;
the axis of the rotary table of the measured part is positioned in the plane of the arc slide rail and passes through the circle center, and the circle center of the arc slide rail is an IEEE standard spherical surface
The center of the coordinate system is 0 point, the measured part 7 is placed at the center of the coordinate system is 0 point, the plane where the slide rail is located is phi 0 plane, and the slide rail and the measured object rotary table are matched for use, so that the 3D spherical scanning of the electric field intensity of the measured antenna in the IEEE standard spherical coordinate system can be completed. The test system avoids the use of metal materials, reduces the influence of metal on electromagnetic wave scattering, and has a remarkable effect on improving the test precision of the low-frequency antenna. Furthermore, in the measuring process, because the same probe is used at each angle, the probes at different angles have good test consistency, and the test precision is further improved.
Example 2: as shown in fig. 3, the optical fiber probe 1 is fixed on a sliding rail 2 made of a non-metal material through a sliding block 3 made of a non-metal material, the non-metal annular supporting mechanism 4 is approximately a semicircular ring, the sliding rail is fixed on the non-metal annular supporting mechanism 4, the optical fiber probe 1 can rotate around the center of the sliding rail 2 on the sliding rail along with the sliding block 3, and an optical fiber connected with the optical fiber probe is connected with a computer at the far end along the annular supporting mechanism 4; the tested piece 7 is placed on the rotary table 6, and the rotary table, the slide rail and each radio frequency unit are directly connected with the computer 5;
the position of the measured part 7 is an IEEE standard spherical surface
The center of the coordinate system is 0 point, the plane where the slide rail is located is a phi 0 plane, and the slide rail and the measured object turntable are matched for use, so that the 3D spherical scanning of the electric field intensity of the measured antenna in the IEEE standard spherical coordinate system can be completed. In the measuring process, because the same probe is used at each angle, the probes at different angles have very good test consistency, and the method has a remarkable effect on improving the test precision. Simultaneously, compare with embodiment 1, only need half test place and slide rail length, can effectively reduce the cost of test place construction.
Example 3: as shown in fig. 4, for a vehicle-mounted antenna testing system, according to the actual working environment of a vehicle-mounted antenna, a ring body of a testing field is improved, the optical fiber probe 1 is fixed on a slide rail 2 made of a non-metal material through a slide block 3 made of a non-metal material, the non-metal ring-shaped supporting mechanism 4 is approximately an upper semicircular ring, the slide rail is fixed on the non-metal ring-shaped supporting mechanism 4, the optical fiber probe 1 can rotate around the center of a circle of the slide rail 2 on the slide rail along with the slide block 3, and an optical fiber connected with the optical fiber probe is connected with a computer at a far end along with the ring-; a tested piece 7 (generally an automobile) is placed on the rotary table 6, and the rotary table, the slide rail and each radio frequency unit are directly connected with the computer 5;
the axis of the rotary table of the measured part is positioned in the plane of the arc slide rail and passes through the circle center, and the circle center of the arc slide rail is an IEEE standard spherical surface
The coordinate system center is 0 point, the position of the measured part 7 is 0 point of the coordinate system center, the plane of the slide rail is phi 0 plane, the slide rail and the measured object rotary table are matched for use, so that the 3D upper spherical scanning of the electric field intensity of the measured antenna in the IEEE standard spherical coordinate system can be completed, and the electromagnetic radiation parameters of the vehicle-mounted antenna can be obtained. The test system avoids the use of metal materials, reduces the influence of metal on electromagnetic wave scattering, and has a remarkable effect on improving the test precision of the low-frequency vehicle-mounted antenna. In the measuring process, because the same probe is used at each angle, the test consistency of the probes at different angles is very goodThe method has a remarkable effect on improving the test precision. Meanwhile, the test turntable is on the horizontal plane, so that the whole vehicle can be tested more suitably.
Example 4:
as shown in fig. 5, for whole vehicle antenna test system, according to vehicle antenna's actual work environment, the ring body in test place has been improved, optical fiber probe 1 fixes on slide rail 2 that non-metallic material made through slider 3 that non-metallic material made, non-metallic ring shape supporting mechanism 4 is approximately a quarter ring, compares with embodiment 3, only needs half test place and slide rail length, can effectively reduce the cost of test place construction. The slide rail is fixed on the nonmetal annular supporting mechanism 4, the optical fiber probe 1 can rotate around the center of a circle of the slide rail 2 on the slide rail along with the slide block 3, and the optical fiber connected with the optical fiber probe is connected with a computer at the far end along the annular supporting mechanism 4; a tested piece 7 (generally an automobile) is placed on the rotary table 6, and the rotary table, the slide rail and each radio frequency unit are directly connected with the computer 5;
the axis of the rotary table of the measured part is positioned in the plane of the arc slide rail and passes through the circle center, and the circle center of the arc slide rail is an IEEE standard spherical surface
The coordinate system center is 0 point, the position of the measured part 7 is 0 point of the coordinate system center, the plane of the slide rail is phi 0 plane, the slide rail and the measured object rotary table are matched for use, so that the 3D upper spherical scanning of the electric field intensity of the measured antenna in the IEEE standard spherical coordinate system can be completed, and the electromagnetic radiation parameters of the vehicle-mounted antenna can be obtained. The test system avoids the use of metal materials, reduces the influence of metal on electromagnetic wave scattering, and has a remarkable effect on improving the test precision of the low-frequency vehicle-mounted antenna. Furthermore, in the measuring process, because the same probe is used at each angle, the probes at different angles have good test consistency, and the method has a remarkable effect on improving the test precision. Meanwhile, the test turntable is on the horizontal plane, so that the whole vehicle can be tested more suitably. Furthermore, compared with the embodiment 3, the test device only needs half of the test field and the length of the slide rail, and can effectively reduce the test timeCost of trial site construction.
Example 5:
as shown in fig. 6, the loop body of the test field is improved according to the actual working environment of the vehicle-mounted antenna for the combined vehicle-mounted antenna test system. The system is a 1/2 ring consisting of 2 1/4 circular arc ring bodies. Each 1/4 circular ring works in different frequency bands to meet the test requirements of different frequency bands of the automobile; the utility model can slide the probe to the low end through the slide rail, which does not affect the adjacent test system, and can be easily compatible with other antenna test systems to combine into a composite test system;
the 1/4 ring on the right side adopts a multi-probe non-metallic ring structure to support the test of a low-frequency range of 70MHz-400MHz, and the ring adopts a supporting mechanism of the non-metallic ring to eliminate the scattering influence of a metallic structural member on the low-frequency measurement. And opening hole sites of the miniature dual-polarized antenna on the ring edge of the non-metal supporting material to fix each optical fiber probe. The transmission of the radio frequency link is entirely accomplished by optical fibers.
The 1/4 ring on the left side supports the test of a higher frequency range (for example, 400 MHz-6 GHz), the probe 1 is fixed on the slide rail 2 made of a non-metal material through the slide block 3 made of a non-metal material, and the non-metal annular supporting mechanism 4 is approximately a quarter of a ring, so that compared with the embodiment 3, only half of the test site and the length of the slide rail are needed, and the cost of the test site construction can be effectively reduced. The slide rail is fixed on the nonmetal annular supporting mechanism 4, the probe 1 can rotate around the center of a circle of the slide rail 2 on the slide rail along with the slide block 3, and an optical fiber or a feeder line connected with the probe is connected with a computer at the far end along the annular supporting mechanism 4; a tested piece 7 (generally an automobile) is placed on the rotary table 6, and the rotary table, the slide rail and each radio frequency unit are directly connected with the computer 5;
the axis of the rotary table of the measured part is positioned in the plane of the arc slide rail and passes through the circle center, and the circle center of the arc slide rail is an IEEE standard spherical surface
The center 0 point of the coordinate system, the position of the tested piece 7 is the center 0 point of the coordinate system,the plane of the slide rail is a phi 0 plane, the slide rail and the measured object rotary table are matched to use, so that the 3D upper hemispherical surface scanning of the electric field intensity of the measured antenna in an IEEE standard spherical coordinate system can be completed, and the electromagnetic radiation parameters of the vehicle-mounted antenna are obtained. The test system avoids the use of metal materials, reduces the influence of metal on electromagnetic wave scattering, and has a remarkable effect on improving the test precision of the low-frequency vehicle-mounted antenna. Furthermore, the test turntable is arranged on a horizontal plane, so that the whole vehicle can be tested more suitably. Further, the utility model discloses a slide rail is with probe slip to bottom, does not cause the influence to adjacent test system, and other slide rails of compatible that can be very easy or many probe antenna test system go forward, and combine for compound test system.
Claims (10)
1. A sliding rail type non-metal loop antenna test system is characterized in that: the device comprises a computer (5), a control module (8), a measuring instrument (9), a radio frequency unit (10), a supporting mechanism (4) made of high-strength non-metal materials, an arc-shaped sliding rail (2) made of non-metal materials, a probe (1), a first driving device, a second driving device and a rotary table (6), wherein a measured object positioning device is rotatably arranged on the rotary table, a supporting mechanism fixing frame is arranged above the rotary table, the arc-shaped sliding rail (2) made of non-metal materials is arranged on the supporting mechanism, the probe (1) can be slidably arranged on the arc-shaped sliding rail and is always aligned to a measured object on the rotary table in the sliding process of the probe, the computer is respectively and electrically connected with the measuring instrument and the control module, the measuring instrument can be electrically connected with the probe and the measured object (7) on the rotary table through the radio frequency unit, the first driving device and the second driving device respectively drive, the control module controls the first driving device and the second driving device to work.
2. The sliding rail type non-metallic loop antenna test system according to claim 1, wherein: the supporting mechanism is an annular structure made of low-dielectric-constant materials.
3. The sliding rail type non-metallic loop antenna test system according to claim 1 or the above, wherein: the arc-shaped sliding rail (2) and the sliding block which are made of the non-metal materials are made of the high-strength non-metal materials, the arc-shaped sliding rail (2) which is made of the non-metal materials is arranged on the supporting mechanism (4), the sliding block (3) which is made of the non-metal materials is arranged on the arc-shaped sliding rail in a sliding mode, and the probe is fixedly installed on the sliding block.
4. The sliding rail type non-metallic loop antenna test system according to claim 3, wherein: the measured object on the rotary table is just positioned at the circle center of the arc-shaped slide rail.
5. The sliding rail type non-metallic loop antenna test system according to claim 1, wherein: the arc-shaped sliding rail made of the non-metal material is in a circular structure, a semicircular structure or an 1/4 circular structure.
6. The sliding rail type non-metallic loop antenna test system according to claim 5, wherein: the arc-shaped sliding rail is formed by splicing two semi-circular structures or a plurality of 1/4 circular structures.
7. The sliding rail type non-metallic loop antenna test system according to claim 1, wherein: the probe is one of a single-polarization optical fiber probe and a dual-polarization optical fiber probe.
8. The sliding rail type non-metallic loop antenna test system according to claim 7, wherein: the probe comprises a miniature radiation unit, an electro-optical conversion unit, a photoelectric conversion unit, an optical fiber power supply unit and an optical fiber, wherein the electro-optical conversion unit is connected with the photoelectric conversion unit through the optical fiber, the optical fiber power supply unit is connected with the electro-optical conversion unit through the optical fiber and supplies power to the electro-optical conversion module, and the miniature radiation unit is connected with the photoelectric conversion unit.
9. The sliding rail type non-metallic loop antenna test system according to claim 1, wherein: the computer is a PC or an industrial control computer, the computer is connected with the test instrument and the control module through a GPIB or USB standard interface, and the test instrument is connected with the probe and the tested piece through a radio frequency interface.
10. The sliding rail type non-metallic loop antenna test system according to claim 1, wherein: the measured object positioning device is a rotary platform.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920046547.3U CN210109215U (en) | 2019-01-11 | 2019-01-11 | Sliding rail type non-metal ring antenna test system |
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| CN201920046547.3U CN210109215U (en) | 2019-01-11 | 2019-01-11 | Sliding rail type non-metal ring antenna test system |
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| CN210109215U true CN210109215U (en) | 2020-02-21 |
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