Electronics (Mike Jaroch)

Observation displays of voltage and current variations with respect to time or
by harmonic analysis of complex signals [16].

A small section of an expanding sphere of electromagnetic radiation that is perpendicular to the direction of travel of the energy [10].

A rectangular, circular, or elliptical metal pipe designed to transport electromagnetic waves through its interior [10] [11].

TR and atr tubes housed in a resonant cavity attached to a waveguide system.

Any particular field configuration in a waveguide that satisfies the boundary conditions. Usually divided into two broad types: the transverse electric (TE) and the transverse magnetic (TM) modes [11].

A rod of conductive material used as impedance changing devices in waveguides [11].

A screw that projects into a waveguide for the purpose of changing the
impedance [11].

The distance, usually expressed in meters, traveled by a wave during the time interval of one complete cycle. It is equal to the velocity divided by the frequency [2] [10] [12].

Calibrated resonant circuits that are used to measure frequency [16]. An instrument for measuring the wavelength of an RF wave [18].

A theory of magnetism which assumes that all magnetic material is composed of
many tiny magnets. A piece of magnetic material that is magnetized has all of the tiny magnets aligned so that the north pole of each magnet points in one direction [1].