Antenna tuner, the Glossary

Table of Contents

1. 57 relations: AM broadcasting, American Radio Relay League, Antenna (radio), Antenna feed, Autotransformer, Balanced line, Balun, Bipolar junction transistor, Capacitance, CERN, Coaxial cable, Curtain array, Dipole antenna, Electrical impedance, Electrical length, Electrical network, Electrical reactance, Electrical resistance and conductance, Electrical resonance, Ferrite (magnet), Hertz, High frequency, Impedance bridging, Impedance matching, Inductor, J-pole antenna, Load pull, Loading coil, Log-periodic antenna, Loop antenna, Medium frequency, Mobile phone, MOSFET, Ohm, Pi (letter), Preselector, Quarter-wave impedance transformer, Radio, Radio broadcasting, Radio noise, Radio receiver, Radio spectrum, Random wire antenna, Resonance, RF front end, Shortwave radio, Signal-to-noise ratio, Smith chart, Standing wave ratio, Stub (electronics), ... Expand index (7 more) »

2. Wireless tuning and filtering

AM broadcasting

AM broadcasting is radio broadcasting using amplitude modulation (AM) transmissions.

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American Radio Relay League

The American Radio Relay League (ARRL) is the largest membership association of amateur radio enthusiasts in the United States.

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Antenna (radio)

In radio engineering, an antenna (American English) or aerial (British English) is the interface between radio waves propagating through space and electric currents moving in metal conductors, used with a transmitter or receiver. Antenna tuner and antenna (radio) are antennas (radio).

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Antenna feed

A radio transmitter or receiver is connected to an antenna which emits or receives the radio waves.

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Autotransformer

In electrical engineering, an autotransformer is an electrical transformer with only one winding.

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Balanced line

In telecommunications and professional audio, a balanced line or balanced signal pair is an electrical circuit consisting of two conductors of the same type, both of which have equal impedances along their lengths, to ground, and to other circuits.

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Balun

A balun (from "balanced to unbalanced", originally, but now derived from "balancing unit") is an electrical device that allows balanced and unbalanced lines to be interfaced without disturbing the impedance arrangement of either line.

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Bipolar junction transistor

A bipolar junction transistor (BJT) is a type of transistor that uses both electrons and electron holes as charge carriers.

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Capacitance

Capacitance is the capability of a material object or device to store electric charge.

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CERN

The European Organization for Nuclear Research, known as CERN (Conseil européen pour la Recherche nucléaire), is an intergovernmental organization that operates the largest particle physics laboratory in the world.

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Coaxial cable

Coaxial cable, or coax (pronounced), is a type of electrical cable consisting of an inner conductor surrounded by a concentric conducting shield, with the two separated by a dielectric (insulating material); many coaxial cables also have a protective outer sheath or jacket. Antenna tuner and coaxial cable are antennas (radio).

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Curtain array

Curtain arrays, a class of large multielement directional radio transmitting wire antennas, are used in the short-wave radio bands. Antenna tuner and Curtain array are antennas (radio).

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Dipole antenna

In radio and telecommunications a dipole antenna or doublet is one of the two simplest and most widely-used types of antenna; the other is the monopole. Antenna tuner and dipole antenna are antennas (radio).

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Electrical impedance

In electrical engineering, impedance is the opposition to alternating current presented by the combined effect of resistance and reactance in a circuit. Antenna tuner and electrical impedance are antennas (radio).

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Electrical length

In electrical engineering, electrical length is a dimensionless parameter equal to the physical length of an electrical conductor such as a cable or wire, divided by the wavelength of alternating current at a given frequency traveling through the conductor.

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Electrical network

An electrical network is an interconnection of electrical components (e.g., batteries, resistors, inductors, capacitors, switches, transistors) or a model of such an interconnection, consisting of electrical elements (e.g., voltage sources, current sources, resistances, inductances, capacitances).

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Electrical reactance

In electrical circuits, reactance is the opposition presented to alternating current by inductance and capacitance.

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Electrical resistance and conductance

The electrical resistance of an object is a measure of its opposition to the flow of electric current.

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Electrical resonance

Electrical resonance occurs in an electric circuit at a particular resonant frequency when the impedances or admittances of circuit elements cancel each other.

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Ferrite (magnet)

A ferrite is one of a family of iron oxide-containing magnetic ceramic materials.

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Hertz

The hertz (symbol: Hz) is the unit of frequency in the International System of Units (SI), equivalent to one event (or cycle) per second.

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High frequency

High frequency (HF) is the ITU designation for the band of radio waves with frequency between 3 and 30 megahertz (MHz).

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Impedance bridging

In audio engineering and sound recording, a high impedance bridging, voltage bridging, or simply bridging connection is one in which the load impedance is much larger than the source impedance.

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Impedance matching

In electrical engineering, impedance matching is the practice of designing or adjusting the input impedance or output impedance of an electrical device for a desired value.

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Inductor

An inductor, also called a coil, choke, or reactor, is a passive two-terminal electrical component that stores energy in a magnetic field when electric current flows through it.

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J-pole antenna

The J-pole antenna, more properly known as the J antenna, is a vertical omnidirectional transmitting antenna used in the shortwave frequency bands.

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Load pull

Load-pull is the colloquial term applied to the process of systematically varying the impedance presented to a device under test (DUT), most often a transistor, to assess its performance and the associated conditions to deliver that performance in a network.

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Loading coil

A loading coil or load coil is an inductor that is inserted into an electronic circuit to increase its inductance.

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Log-periodic antenna

A log-periodic antenna (LP), also known as a log-periodic array or log-periodic aerial, is a multi-element, directional antenna designed to operate over a wide band of frequencies. Antenna tuner and log-periodic antenna are antennas (radio).

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Loop antenna

A loop antenna is a radio antenna consisting of a loop or coil of wire, tubing, or other electrical conductor, that for transmitting is usually fed by a balanced power source or for receiving feeds a balanced load. Antenna tuner and loop antenna are wireless tuning and filtering.

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Medium frequency

Medium frequency (MF) is the ITU designation for radio frequencies (RF) in the range of 300 kilohertz (kHz) to 3 megahertz (MHz).

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Mobile phone

A mobile phone or cell phone is a portable telephone that can make and receive calls over a radio frequency link while the user is moving within a telephone service area, as opposed to a fixed-location phone (landline phone).

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MOSFET

W and controlling a load of over 2000 W. A matchstick is pictured for scale. In electronics, the metal–oxide–semiconductor field-effect transistor (MOSFET, MOS-FET, or MOS FET) is a type of field-effect transistor (FET), most commonly fabricated by the controlled oxidation of silicon.

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Ohm

The ohm (symbol: Ω, the uppercase Greek letter omega) is the unit of electrical resistance in the International System of Units (SI).

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Pi (letter)

Pi (/ˈpaɪ/; Ancient Greek /piː/ or /peî/, uppercase Π, lowercase π, cursive ϖ; πι) is the sixteenth letter of the Greek alphabet, meaning units united, and representing the voiceless bilabial plosive.

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Preselector

A preselector is a name for an electronic device that connects between a radio antenna and a radio receiver. Antenna tuner and preselector are wireless tuning and filtering.

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Quarter-wave impedance transformer

A quarter-wave impedance transformer, often written as λ/4 impedance transformer, is a transmission line or waveguide used in electrical engineering of length one-quarter wavelength (λ), terminated with some known impedance.

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Radio

Radio is the technology of communicating using radio waves.

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Radio broadcasting

Radio broadcasting is the broadcasting of audio (sound), sometimes with related metadata, by radio waves to radio receivers belonging to a public audience.

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Radio noise

In radio reception, radio noise (commonly referred to as radio static) is unwanted random radio frequency electrical signals, fluctuating voltages, always present in a radio receiver in addition to the desired radio signal.

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Radio receiver

In radio communications, a radio receiver, also known as a receiver, a wireless, or simply a radio, is an electronic device that receives radio waves and converts the information carried by them to a usable form.

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Radio spectrum

The radio spectrum is the part of the electromagnetic spectrum with frequencies from 3 Hz to 3,000 GHz (3 THz). Antenna tuner and radio spectrum are wireless tuning and filtering.

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Random wire antenna

A random wire antenna is a radio antenna consisting of a long wire suspended above the ground, whose length does not bear a particular relation to the wavelength of the radio waves used, but is typically chosen more for convenient fit between the available supports, or the length of wire at hand, rather than selecting length to be resonant on any particular frequency.

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Resonance

In physics, resonance refers to a wide class of phenomena that arise as a result of matching temporal or spatial periods of oscillatory objects. Antenna tuner and resonance are antennas (radio).

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RF front end

In a radio receiver circuit, the RF front end, short for radio frequency front end, is a generic term for all the circuitry between a receiver's antenna input up to and including the mixer stage.

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Shortwave radio

Shortwave radio is radio transmission using radio frequencies in the shortwave bands (SW).

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Signal-to-noise ratio

Signal-to-noise ratio (SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise.

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Smith chart

The Smith chart (sometimes also called Smith diagram, Mizuhashi chart (水橋チャート), Mizuhashi–Smith chart (水橋スミスチャート), Volpert–Smith chart (Диаграмма Вольперта—Смита) or Mizuhashi–Volpert–Smith chart), is a graphical calculator or nomogram designed for electrical and electronics engineers specializing in radio frequency (RF) engineering to assist in solving problems with transmission lines and matching circuits.

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Standing wave ratio

In radio engineering and telecommunications, standing wave ratio (SWR) is a measure of impedance matching of loads to the characteristic impedance of a transmission line or waveguide. Antenna tuner and standing wave ratio are antennas (radio).

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Stub (electronics)

In microwave and radio-frequency engineering, a stub or resonant stub is a length of transmission line or waveguide that is connected at one end only. Antenna tuner and stub (electronics) are antennas (radio).

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SWR meter

A standing wave ratio meter, SWR meter, ISWR meter (current "" SWR), or VSWR meter (voltage SWR) measures the standing wave ratio (SWR) in a transmission line.

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Television antenna

A television antenna, also called a television aerial (in British English), is an antenna specifically designed for use with a television receiver (TV) to receive terrestrial over-the-air (OTA) broadcast television signals from a television station. Antenna tuner and television antenna are antennas (radio).

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Transformer

In electrical engineering, a transformer is a passive component that transfers electrical energy from one electrical circuit to another circuit, or multiple circuits.

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Transmission line

In electrical engineering, a transmission line is a specialized cable or other structure designed to conduct electromagnetic waves in a contained manner.

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Transmitter

In electronics and telecommunications, a radio transmitter or just transmitter (often abbreviated as XMTR or TX in technical documents) is an electronic device which produces radio waves with an antenna with the purpose of signal transmission up to a radio receiver.

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Unbalanced line

In telecommunications and electrical engineering in general, an unbalanced line is a pair of conductors intended to carry electrical signals, which have unequal impedances along their lengths and to ground and other circuits.

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Walkie-talkie

A walkie-talkie, more formally known as a handheld transceiver (HT), is a hand-held, portable, two-way radio transceiver.

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See also

Wireless tuning and filtering

• Antenna tuner
• Automatic frequency control
• Choke (electronics)
• Crystal filter
• Dielectric resonator
• Ferrite bead
• Line filter
• Loop antenna
• MPX filter
• Preselector
• RF and microwave filter
• Radio spectrum
• Roofing filter
• Tuned radio frequency receiver
• Tuner (radio)
• Variable capacitor
• Variable-frequency oscillator
• Wobbulator
• YIG sphere

References

[1] https://en.wikipedia.org/wiki/Antenna_tuner

Also known as Antenna coupler, Antenna tuning unit, Coupling hut, L network, Pi network, SPC tuner, Transmatch, Ultimate Transmatch, Z match.

, SWR meter, Television antenna, Transformer, Transmission line, Transmitter, Unbalanced line, Walkie-talkie.