Electronics (Mike Jaroch)
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DIRECT CURRENTAn electric current that flows in one direction only [1]. | ||
DIRECT SHORTSame as SHORT CIRCUIT [3]. | ||
DIRECTIONAL ANTENNAAn antenna that radiates most effectively in only one direction [18]. | ||
DIRECTIONAL COUPLERA device that samples the energy traveling in a waveguide in one direction only [11]. | ||
DIRECTIVITYThe ability of an antenna to radiate or receive more energy in some directions than in others. The degree of sharpness of the antenna beam [10] [11] [18]. | ||
DIRECTORThe parasitic element of an array that reinforces energy coming from the driver element [10]. | ||
DISCRETE COMPONENTSIndividual transistors, diodes, resistors, capacitors, and inductors [14]. | ||
DISCRIMINATORA circuit in which amplitude variations are derived in response to phase or frequency variations [18]. | ||
DISPERSIONThe refraction of light waves that causes the different frequencies to bend at slightly different angles [10]. | ||