In the radio frequency module, a conductive layer (8) that forms a signal ground plane.
The first matched signal is sampled the moment the second matched signal passed through the signal ground and the second one the moment the first one passed through the signal ground.
A controllable switch has first and second elements, the first element receives the selected video and is coupled to signal ground.
The shield (200) splits the enclosure ground from the internal signal ground, decreasing the capacitance between them, in turn decreasing another possible source of electromagnetic radiation.
There is a dielectric spacing (d1, d2) between the antenna assembly (4) and the conductive layer (8) that forms the signal ground plane.
Also, the signal-ground and the frame-ground of a printed circuit board (550) are earthed at multiple points, and high frequency noises are prevented.
However, the signal-ground and frame-ground of the printed circuit board are earthed near both the end parts and the middle part of the plug section (551), and thereby, the generation of the harmful electromagnetic noises is reduced.
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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