The function of the shielding box is to restrict the radiated electromagnetic energy inside the equipment from going out of a certain area, and the second is to prevent the outside radiated electromagnetic energy from entering a certain area. So which fields are the shielding boxes mainly used for?
The application fields of shielded boxes are: wireless communication test, EMI test, coupling test, RF function test, receiver sensitivity test, Bluetooth, DAB / DMB, small UHF equipment EMI and EMS test, machine, Bluetooth, wireless router and other equipment. Test of the whole machine or chip.
Among the most typical are wireless communication test applications:
The RF test process is usually the most complicated and most influential process in the production line of wireless communication equipment such as mobile phones, and it is usually the bottleneck of the production line. Radio frequency test stations are usually composed of test instruments, shielding boxes, test software, etc., and are usually divided into calibration tests, comprehensive tests, antenna tests, and so on. Due to capacity requirements, the RF test process is usually run in parallel by multiple identical test stations. The pass rate of one or some test stations is low; the decrease in output will lead to a bottleneck in the production line and a sharp increase in production costs. The reasons can be roughly divided into: product design or material reasons, testing problems (mistakes) Test problems), environmental factors such as radio frequency interference, test uncertainty issues.
Electromagnetic interference / EMI is a problem that the entire electronic field must face and overcome. Generally, it is used in wireless communication products such as: mobile phones, wireless network cards, wireless routers, wireless headsets, Bluetooth headsets, wi-fi, wimax, data cards, walkie-talkies, RFID, etc. In the process of board test and final test, such wireless communication equipment and wireless communication modules are used to improve the test environment by using RF test shielding boxes.
The above is the introduction of the main application fields of shielding boxes. Jiachen Technology is a shielding box manufacturer specializing in the production of shielding boxes and sound insulation boxes. It provides manual shielding boxes, automatic shielding boxes, pneumatic shielding boxes, etc. You can call us for consultation.
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