Antenna (radio)
An antenna (or aerial) is an electrical device which converts electric power into radio waves, and vice versa. It is usually used with a radio transmitter or radio receiver. In transmission, a radio...
Antenna (radio) - Wikipedia
Antenna gain
In electromagnetics, an antenna's power gain or simply gain is a key performance figure which combines the antenna's directivity and electrical efficiency. As a transmitting antenna, the figure descr...
Antenna effective area
In electromagnetics and antenna theory, antenna aperture or effective area is a measure of how effective an antenna is at receiving the power of radio waves. The aperture is defined as the area, orie...
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 o...
Radiation pattern - Wikipedia
Antenna efficiency
In antenna theory, antenna efficiency is a loose term usually meaning radiation efficiency, often abbreviated to efficiency. It is a measure of the efficiency with which a radio antenna converts the r...
Polarization (waves)
Polarization (also polarisation) is a property of waves that can oscillate with more than one orientation. Electromagnetic waves such as light exhibit polarization, as do some other types of wave, su...
Polarization (waves) - Wikipedia
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 m...
Main lobe
In a radio antenna's radiation pattern, the main lobe, or main beam is the lobe containing the maximum power. This is the lobe that exhibits the greatest field strength.The radiation pattern of most ...
Duo LNB
A Duo LNB is a double low-noise block downconverter (LNB) developed by SES for the simultaneous reception of satellite television signals from both the Astra 23.5°E and Astra 19.2°E satellite position...
Duo LNB - Wikipedia
Front-to-back ratio
In telecommunication, the term front-to-back ratio (also known as front-to-rear ratio) can mean:The ratio compares the antenna gain in a specified direction, i.e., azimuth, usually that of maximum gai...
Kinara
The kinara is the candle holder used in Kwanzaa celebrations in the United States. During the week-long celebration of Kwanzaa, seven candles are placed in the kinara - three red on the left, three gr...
Kinara - Wikipedia
Aperture-to-medium coupling loss
In telecommunication, aperture-to-medium coupling loss is the difference between the theoretical antenna gain of a very large antenna, such as the antennas in beyond-the-horizon microwave links, and t...
TV aerial plug
Domestic antenna plugs and sockets are devices that connect TV antenna (aerial) cable to a TV set.Antenna plugs are male antenna connectors that fit into female antenna sockets. Antenna sockets are fe...
TV aerial plug - Wikipedia
Bell Laboratories Layered Space-Time
Bell Laboratories Layered Space-Time (BLAST) is a transceiver architecture for offering spatial multiplexing over multiple-antenna wireless communication systems. Such systems have multiple antennas a...
Bell Laboratories Layered Space-Time - Wikipedia
Beam tilt
Beam tilt is used in radio to aim the main lobe of the vertical plane radiation pattern of an antenna below (or above) the horizontal plane.The simplest way is mechanical beam tilt, where the antenna...
Beam tilt - Wikipedia
Candelabra
A candelabrum /ˌkændəlˈɑːbrəm, -æbrəm/ (plural candelabrums, candelabra, candelabras), sometimes called a candle tree, is a candlestick holder with multiple arms. The word comes from Latin. In modern ...
Candelabra - Wikipedia
TRIA
TRIA, or Tria may refer to:
Nantenna
A nantenna (//nano antenna) is a nanoscopic rectifying antenna, an experimental technology being developed to convert light to electric power. The concept is based on the rectenna (rectifying antenna...
Nantenna - Wikipedia
Orthomode transducer
An orthomode transducer (OMT) is a waveguide component. It is commonly referred to as a polarisation duplexer. Orthomode transducers serve either to combine or to separate two orthogonally polarized m...
Orthomode transducer - Wikipedia
Tunnel transmitter
A tunnel transmitter allows wireless reception in tunnels. It consists of a receiving antenna which receives the signal to be radiated in the tunnel, and a transmitting antenna installed in the tunne...
Macrodiversity
In the field of wireless communication, macrodiversity is a kind of space diversity scheme using several receiver antennas and/or transmitter antennas for transferring the same signal. The distance be...
Macrodiversity - Wikipedia
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 c...
Electrical length - Wikipedia
Beam steering
Beam steering (also spelled beamsteering or beam-steering) is about changing the direction of the main lobe of a radiation pattern.In radio systems, beam steering may be accomplished by switching the ...
Menorah (Temple)
The menorah (/məˈnɔrə/; Hebrew: מְנוֹרָה‎ [mənoːˈɾaː]) is described in the Bible as the seven-lamp (six branches) ancient Hebrew lampstand made of pure gold and used in the portable sanctuary se...
Menorah (Temple) - Wikipedia