Logo
Unionpedia
Communication
Get it on Google Play
New! Download Unionpedia on your Android™ device!
Free
Faster access than browser!
 

T-antenna

Index T-antenna

A T-antenna, T-aerial, flat-top antenna, or top-hat antenna is a capacitively loaded monopole wire radio antenna used in the VLF, LF, MF and shortwave bands. [1]

39 relations: Amateur radio, Antenna (radio), Bandwidth (signal processing), Capacitance, Corona discharge, Counterpoise (ground system), Dipole antenna, Displacement current, Electrical length, Electrical reactance, Ground (electricity), Impedance matching, LC circuit, Litz wire, Loading coil, Longwave, Low frequency, Mast radiator, Medium frequency, Medium wave, Monopole antenna, Omnidirectional antenna, Polarization (waves), Q factor, Radiation pattern, Radiation resistance, Radio masts and towers, Radio receiver, Resonance, Shortwave listening, Shortwave radio, Skywave, Standing wave ratio, Surface wave, Transmitter, Umbrella antenna, Very low frequency, Wavelength, Wireless telegraphy.

Amateur radio

Amateur radio, also known as ham radio, describes the use of radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, private recreation, radiosport, contesting, and emergency communication.

New!!: T-antenna and Amateur radio · See more »

Antenna (radio)

In radio, an antenna is the interface between radio waves propagating through space and electric currents moving in metal conductors, used with a transmitter or receiver.

New!!: T-antenna and Antenna (radio) · See more »

Bandwidth (signal processing)

Bandwidth is the difference between the upper and lower frequencies in a continuous band of frequencies.

New!!: T-antenna and Bandwidth (signal processing) · See more »

Capacitance

Capacitance is the ratio of the change in an electric charge in a system to the corresponding change in its electric potential.

New!!: T-antenna and Capacitance · See more »

Corona discharge

A corona discharge is an electrical discharge brought on by the ionization of a fluid such as air surrounding a conductor that is electrically charged.

New!!: T-antenna and Corona discharge · See more »

Counterpoise (ground system)

In electronics and radio communication a counterpoise is a network of suspended horizontal wires or cables (or a metal screen), used as a substitute for an earth (ground) connection in a radio antenna system.

New!!: T-antenna and Counterpoise (ground system) · See more »

Dipole antenna

In radio and telecommunications a dipole antenna or doublet is the simplest and most widely used class of antenna.

New!!: T-antenna and Dipole antenna · See more »

Displacement current

In electromagnetism, displacement current density is the quantity appearing in Maxwell's equations that is defined in terms of the rate of change of, the electric displacement field.

New!!: T-antenna and Displacement current · See more »

Electrical length

In telecommunications and electrical engineering, electrical length (or phase length) refers to the length of an electrical conductor in terms of the phase shift introduced by transmission over that conductor at some frequency.

New!!: T-antenna and Electrical length · See more »

Electrical reactance

In electrical and electronic systems, reactance is the opposition of a circuit element to a change in current or voltage, due to that element's inductance or capacitance.

New!!: T-antenna and Electrical reactance · See more »

Ground (electricity)

In electrical engineering, ground or earth is the reference point in an electrical circuit from which voltages are measured, a common return path for electric current, or a direct physical connection to the earth.

New!!: T-antenna and Ground (electricity) · See more »

Impedance matching

In electronics, impedance matching is the practice of designing the input impedance of an electrical load or the output impedance of its corresponding signal source to maximize the power transfer or minimize signal reflection from the load.

New!!: T-antenna and Impedance matching · See more »

LC circuit

An LC circuit, also called a resonant circuit, tank circuit, or tuned circuit, is an electric circuit consisting of an inductor, represented by the letter L, and a capacitor, represented by the letter C, connected together.

New!!: T-antenna and LC circuit · See more »

Litz wire

Litz wire is a type of specialized multistrand wire or cable used in electronics to carry alternating current (AC) at radio frequencies.

New!!: T-antenna and Litz wire · See more »

Loading coil

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

New!!: T-antenna and Loading coil · See more »

Longwave

In radio, longwave, long wave or long-wave, and commonly abbreviated LW, refers to parts of the radio spectrum with wavelengths longer than what was originally called the medium-wave broadcasting band.

New!!: T-antenna and Longwave · See more »

Low frequency

Low frequency (low freq) or LF is the ITU designation for radio frequencies (RF) in the range of 30 kilohertz (kHz)–300 kHz.

New!!: T-antenna and Low frequency · See more »

Mast radiator

A mast radiator (or radiating tower) is a radio mast or tower in which the entire structure functions as an antenna.

New!!: T-antenna and Mast radiator · See more »

Medium frequency

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

New!!: T-antenna and Medium frequency · See more »

Medium wave

Medium wave (MW) is the part of the medium frequency (MF) radio band used mainly for AM radio broadcasting.

New!!: T-antenna and Medium wave · See more »

Monopole antenna

A monopole antenna is a class of radio antenna consisting of a straight rod-shaped conductor, often mounted perpendicularly over some type of conductive surface, called a ground plane.

New!!: T-antenna and Monopole antenna · See more »

Omnidirectional antenna

In radio communication, an omnidirectional antenna is a class of antenna which have an axis about which radio wave power is radiated symmetrically, and, upon that axis, is zero.

New!!: T-antenna and Omnidirectional antenna · See more »

Polarization (waves)

Polarization (also polarisation) is a property applying to transverse waves that specifies the geometrical orientation of the oscillations.

New!!: T-antenna and Polarization (waves) · See more »

Q factor

In physics and engineering the quality factor or Q factor is a dimensionless parameter that describes how underdamped an oscillator or resonator is, and characterizes a resonator's bandwidth relative to its centre frequency.

New!!: T-antenna and Q factor · See more »

Radiation pattern

In the field of antenna design the term radiation pattern (or antenna pattern or far-field pattern) refers to the directional (angular) dependence of the strength of the radio waves from the antenna or other source.

New!!: T-antenna and Radiation pattern · See more »

Radiation resistance

Radiation resistance is that part of an antenna's feedpoint resistance that is caused by the radiation of electromagnetic waves from the antenna, as opposed to loss resistance (also called ohmic resistance) which generally causes the antenna to heat up.

New!!: T-antenna and Radiation resistance · See more »

Radio masts and towers

Radio masts and towers are, typically, tall structures designed to support antennas (also known as aerials) for telecommunications and broadcasting, including television.

New!!: T-antenna and Radio masts and towers · See more »

Radio receiver

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

New!!: T-antenna and Radio receiver · See more »

Resonance

In physics, resonance is a phenomenon in which a vibrating system or external force drives another system to oscillate with greater amplitude at specific frequencies.

New!!: T-antenna and Resonance · See more »

Shortwave listening

Shortwave listening, or SWLing, is the hobby of listening to shortwave radio broadcasts located on frequencies between 1700 kHz and 30 MHz.

New!!: T-antenna and Shortwave listening · See more »

Shortwave radio

Shortwave radio is radio transmission using shortwave radio frequencies.

New!!: T-antenna and Shortwave radio · See more »

Skywave

In radio communication, skywave or skip refers to the propagation of radio waves reflected or refracted back toward Earth from the ionosphere, an electrically charged layer of the upper atmosphere.

New!!: T-antenna and Skywave · See more »

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.

New!!: T-antenna and Standing wave ratio · See more »

Surface wave

In physics, a surface wave is a mechanical wave that propagates along the interface between differing media.

New!!: T-antenna and Surface wave · See more »

Transmitter

In electronics and telecommunications, a transmitter or radio transmitter is an electronic device which produces radio waves with an antenna.

New!!: T-antenna and Transmitter · See more »

Umbrella antenna

An umbrella antenna is a top-loaded electrically lengthened monopole antenna, consisting in most cases of a mast fed at the ground end, to which a number of radial wires are connected at the top, sloping downwards.

New!!: T-antenna and Umbrella antenna · See more »

Very low frequency

Very low frequency or VLF is the ITU designation for radio frequencies (RF) in the range of 3 to 30 kilohertz (kHz), corresponding to wavelengths from 100 to 10 kilometers, respectively.

New!!: T-antenna and Very low frequency · See more »

Wavelength

In physics, the wavelength is the spatial period of a periodic wave—the distance over which the wave's shape repeats.

New!!: T-antenna and Wavelength · See more »

Wireless telegraphy

Wireless telegraphy is the transmission of telegraphy signals from one point to another by means of an electromagnetic, electrostatic or magnetic field, or by electrical current through the earth or water.

New!!: T-antenna and Wireless telegraphy · See more »

Redirects here:

T aerial, T antenna, T-Antenna, T-aerial.

References

[1] https://en.wikipedia.org/wiki/T-antenna

OutgoingIncoming
Hey! We are on Facebook now! »