A Method of Splicing Plane Wave Phase Multi-segment Measurement
A plane wave and phase technology, applied in the field of electromagnetic field and electromagnetic wave, can solve the problems of complicated storage, storage, transportation, installation, inability to test in different sizes of compact field, and high cost, so as to reduce the difficulty, meet the detection requirements and save money.
Active Publication Date: 2020-06-30
BEIJING INST OF RADIO METROLOGY & MEASUREMENT
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[0003] The invention provides a multi-segment measurement splicing of plane wave phase, which solves the problems that the existing methods cannot be tested in different sizes of compact fields, and the cost is expensive, and the storage, storage, transportation and installation are complicated.
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[0019] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0020] With the development of stealth, anti-stealth and satellite technology research, due to the compact field has many advantages such as small footprint, low background level, all-weather measurement, good confidentiality, high measurement accuracy, and convenient use, it is increasingly valued by the user department. At present, many sets of compaction fields...
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The invention discloses a plane wave phase multi-section measurement splicing method which solves the problem that an existing method cannot test a compact field in different sizes, and that manufacturing cost is high, storage, managing, transporting and installation are complex. The method comprises the following steps that a laser emitting device is fixedly arranged outside the edge of a staticarea of a compact field, so that the laser plane emitted by a laser collimator is perpendicular to the incoming wave direction of the compact field. A laser tracker is used for positioning the initialposition of a scanning frame, and the laser transmitting device is kept to be fixed. In the laser plane, a moving probe measures to obtain the plane wave characteristics of the first section of the compact field; and the position of the scanning frame is moved in parallel in the laser plane to a to-be-detected position. In the laser plane, the plane wave characteristics of the second section of the compact field are measured by the moving probe; and the plane wave characteristics of the first section and the second section are spliced to obtain the phase characteristics of the plane wave of the compact field. According to the method, the plane wave characteristics of a compact field with a large static area can be detected.
Description
technical field [0001] The invention relates to the fields of electromagnetic fields and electromagnetic waves, in particular to a multi-segment measurement splicing method for plane wave phases. Background technique [0002] The compact field is a device that uses a precise reflector or microwave lens to convert the spherical wave emitted by the feed source into a plane wave within a short distance. The quasi-plane wave generated by it can fully meet the environmental requirements of radar antenna, radome and target RCS test. With the development of stealth, anti-stealth and satellite technology research, due to the compact field has many advantages such as small footprint, low background level, all-weather measurement, good confidentiality, high measurement accuracy, and convenient use, it is increasingly valued by the user department. At present, many sets of compaction fields of different types to meet different test requirements have been built in China to meet the targ...
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IPC IPC(8): G01R25/00
CPCG01R25/00
Inventor 马永光杨金涛何鑫吴翔
Owner BEIJING INST OF RADIO METROLOGY & MEASUREMENT