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Thursday, 2 May 2024, 7:30 PM
Site: edulabs.org academy
Course: Activity Examples (Activity Examples)
Glossary: Electronics (Mike Jaroch)
H

HORIZONTALLY POLARIZED

Waves radiated with their E field component parallel to the earth's surface [10].

HORN

A funnel-shaped section of waveguide used as a termination device and as a radiating antenna [11].

HORN ANTENNA

See HORN RADIATOR [18].

HORN RADIATOR

A tapered, tubular or rectangular microwave antenna that is widest at the open end [18].

HORSEPOWER

The English unit of power equal to work done at the rate of 550 foot-pounds per second; equal to 746 watts of electrical power [1].

HORSESHOE MAGNET

A permanent magnet or electromagnet bent into the shape of a horseshoe or
having a U-shape to bring the two poles near each other [1].

HOT CARRIER

A carrier, which may be either a hole or an electron, that has relatively high energy with respect to the carriers normally found in majority-carrier devices [11].

HOT-CARRIER DIODE

A semiconductor diode in which hot carriers are emitted from a semiconductor
layer into the metal base. Also called HOT-ELECTRON DIODE. An example is the Schottky barrier diode [11].

HOT-WIRE METER MOVEMENT

A meter movement that uses the expansion of a heated wire to move the pointer of a meter; measures dc or ac [3].

HYBRID CIRCUIT

A circuit where passive components (resistors, capacitors) are deposited onto a
substrate made of glass, ceramic, or other insulating material. Then the active components (diodes, transistors) are attached to the substrate and connected to the passive components on the substrate with a very fine wire [7].