Testing equipment and its testing method
A technology for detection equipment and detection methods, which is applied in the direction of measuring devices, measuring electrical variables, instruments, etc., can solve the problems of no detection scheme, reduce the main set antenna and diversity antenna, and achieve the effect of improving detection accuracy
Active Publication Date: 2021-08-17
GUANGDONG OPPO MOBILE TELECOMM CORP LTD
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Problems solved by technology
[0004] However, at present, the shell integrated with the EBG structure can only determine the frequency range of the surface wave bandgap of the EBG structure through calculation before designing the shell. When the EBG structure is integrated into the shell, there is currently no suitable detection equipment to detect it. The electromagnetic performance of the housing, so whether the housing integrated with the EBG structure can effectively avoid or reduce the coupling between the main antenna and the diversity antenna, there is still no effective detection scheme
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[0017] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of this application.
[0018] At present, electronic devices capable of wireless communication will include housings integrated with electromagnetic bandgap (Electromagnetic BandGap, EBG) structures. Coupling between. Designers can only determine the frequency range of the surface wave bandgap of the EBG structure by calculation before designing the shell. When the EBG structure is integrated into the shell, there is currently no suitable testing equipment to detect the electromagnetic properties of the shell. Th...
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The present application relates to a detection device and a detection method, which are used for detecting the electromagnetic characteristics of a housing with an electromagnetic bandgap structure. The detection equipment includes a first base, a second base, a probe set and a controller. The first base and the second base are arranged at intervals, and a cavity is formed between them. The probe set is connected to the side of the second base facing the cavity; the probe set includes a plurality of probes, and the plurality of probes are distributed on the second base at intervals. One of the plurality of probes is used as a signal transmitting end, and the rest of the probes are used as signal receiving ends. The controller is electrically connected to the probe set, and is used for calculating the signal transmission coefficient according to the electromagnetic signal emitted by the signal transmitting end and the electromagnetic signal received by the signal receiving end. The above-mentioned detection equipment excites the probe group, the probe group can send the electromagnetic signal of the preset frequency, and receive the electromagnetic signal propagating in the cavity, and calculate the signal transmission coefficient of the electromagnetic signal through the controller, so that the shell to be detected can be easily known. Electromagnetic properties of the body.
Description
technical field [0001] The present application relates to the field of consumer electronic equipment, and in particular to a detection device and a detection method for detecting electromagnetic characteristics of a casing of an electronic device. Background technique [0002] With the development of science and technology, electronic devices such as mobile phones have been greatly developed, and the design level and technology of mobile phones are also constantly improving. More and more mobile phones have begun to use metal back covers. The metal back cover is undoubtedly a big obstacle for the antenna design of the mobile phone. Due to the continuous efforts of engineers, there are many design solutions for metal casings in antenna design. Although the performance of the antenna meets the requirements of mobile phone communication, in the existing technical solution, the signal radiated by the antenna is still transmitted on the all-metal back cover. The propagation of ...
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IPC IPC(8): G01R29/08
CPCG01R29/0835G01R29/0878
Inventor 杨帆
Owner GUANGDONG OPPO MOBILE TELECOMM CORP LTD