Ground plane
Electrically conductive surface, usually connected to electrical ground / From Wikipedia, the free encyclopedia
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In electrical engineering, a ground plane is an electrically conductive surface, usually connected to electrical ground.
This article includes a list of general references, but it lacks sufficient corresponding inline citations. (September 2012) |
The term has two different meanings in separate areas of electrical engineering.
- In antenna theory, a ground plane is a conducting surface large in comparison to the wavelength, such as the Earth, which is connected to the transmitter's ground wire and serves as a reflecting surface for radio waves.
- In printed circuit boards, a ground plane is a large area of copper foil on the board which is connected to the power supply ground terminal and serves as a return path for current from different components on the board.