## Electronics (Mike Jaroch)

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### A

#### ANGLE OF REFLECTION

The angle between the reflected wave and the normal [10].
 Keyword(s): ANGLE OF REFLECTION

#### ANGLE OF REFRACTION

The angle between the normal and the path of a wave through the second
medium [10].

 Keyword(s): ANGLE OF REFRACTION

#### ANGSTROM UNIT

The unit used to define the wavelength of light waves [10].
 Keyword(s): ANGSTROM UNIT

#### ANISOTROPIC

The property of a radiator that allows it to emit strong radiation in one direction [10].
 Keyword(s): ANISOTROPIC

#### ANODE

(1) A positive electrode of an electrochemical device (such as a primary or secondary electric cell) toward which the negative ions are drawn [1] [6) [7]. (2) The semiconductor-diode terminal that is positive with respect to the other terminal when the diode is biased in the forward direction [13].

 Keyword(s): ANODE

#### ANTENNA

A conductor or set of conductors used to radiate RF energy into space or to collect RF energy from space or to do both [10].

 Keyword(s): ANTENNA

#### ANTENNA BEAM WIDTH

Width of a radar beam measured between half-power points [18].
 Keyword(s): ANTENNA BEAM WIDTH

#### ANTENNA COUPLER

A device used for impedance matching between an antenna and a transmitter or receiver [17].

 Keyword(s): ANTENNA COUPLER

#### ANTENNA SYSTEM

Routes RF energy from the transmitter, radiates the energy into space, receives
echoes, and routes the echoes to the receiver [18].

 Keyword(s): ANTENNA SYSTEM

#### ANTIJAMMING CIRCUIT

An electronic circuit used to minimize the effects of enemy countermeasures, thereby permitting radar echoes to be visible on the indicator [18].

 Keyword(s): ANTIJAMMING CIRCUIT

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