Small shielding body electromagnetic shielding performance testing device, system and method therefor
The invention provides a small shielding body electromagnetic shielding performance testing device, a system and a method therefor. A plurality of frequency points are selected to be measured within the frequency range needed to be measured. A point-frequency radiation source is used as a signal sou...
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| Format | Patent |
| Language | Chinese English |
| Published |
03.03.2010
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| Subjects | |
| Online Access | Get full text |
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| Summary: | The invention provides a small shielding body electromagnetic shielding performance testing device, a system and a method therefor. A plurality of frequency points are selected to be measured within the frequency range needed to be measured. A point-frequency radiation source is used as a signal source to be placed into a tested small shielding body, different frequency passes through different transmitting antennas, and the signal is transmitted outside the small shielding body; then the signal can be received by a corresponding receiving antenna outside the small shielding body; and after that, the signal is amplified and then output into a frequency spectrometer to be measured. Miniaturized processing is carried out to the transmitting antenna in full frequency range, and the transmitting antenna is arranged inside the point-frequency radiation source; particularly, brand new design and a cellular winding method are adopted by the magnetic field transmitting antenna, so that the transmission efficiency is |
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| Bibliography: | Application Number: CN2009190031 |