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

this antenna in 1946. It is very popular in the United States. The antenna can be erected as horizontal dipole, as sloper, or an inverted-V antenna. With...

The Moxon antenna or Moxon rectangle is a simple and mechanically rugged two-element parasitic array, single-frequency antenna. It takes its name from...

distinction arises solely from different desirable radiation patterns of the antennas (near vertical for NVIS, near horizontal for conventional long-range skywave...

A distributed antenna system (DAS) is a network of spatially separated antenna nodes connected to a common source via a transport medium that provides...

In radio systems, many different antenna types are used whose properties are especially crafted for particular applications. Most often, the greatest...

The Sloper Antenna is a slanted Dipole antenna. While horizontal dipoles required two large support masts, this antenna type only needs one large mast...

monopole antennas Array antennas Loop antennas Aperture antennas Traveling wave antennas Log-periodic antenna Spiral Antenna Horn antenna Adcock antenna Sector...

A television antenna, also called a television aerial (in British English), is an antenna specifically designed for use with a television receiver (TV)...

A rhombic antenna is made of four sections of wire suspended parallel to the ground in a diamond or "rhombus" shape. Each of the four sides is the same...

J-pole antenna). An advantage is that because it acts as a dipole it does not need a ground plane. The maximum horizontal gain of a monopole antenna is...

regardless of the complex impedance or SWR of the antenna itself. The J-pole antenna is an example of an antenna with a built-in stub match. The basic circuit...

monopole or Marconi antenna, which was initially a wire suspended from a tall wooden pole. He found that the higher the antenna was suspended, the further...

emergency repairs, gin poles are well suited to raising loads above structures too tall to reach with a crane, such as placing an antenna on top of a tower/steeple...

A quad antenna is a type of directional wire radio antenna used on the HF and VHF bands. Like a Yagi–Uda antenna ("Yagi"), a quad consists of a driven...

pole, telephone pole, telecommunication pole, power pole, hydro pole, telegraph pole, or telegraph post, depending on its application. A Stobie pole is...

A satellite dish is a dish-shaped type of parabolic antenna designed to receive or transmit information by radio waves to or from a communication satellite...

observatory, and one or two of the heliograph antennas can be seen from the car park of the visitor centre Pôle des Étoiles. During opening times, the visitor...

from the antenna. The monopoles include the mast radiator used by AM radio stations, and the 'T' and inverted 'L' antenna, and umbrella antenna. The feedline...

A transmitarray antenna (or just transmitarray or called as layered lens antenna) is a phase-shifting surface (PSS), a structure capable of focusing electromagnetic...

(a large antenna) or synthetic (a moving antenna) – this allows SAR to create high-resolution images with comparatively small physical antennas. For a fixed...

tree. In monopoles, the directional antennas are sometimes hidden in a plastic housing near the top of the pole so that the crossbars can be eliminated...

in the radio or microwaves domain, a transmitting antenna, a receiving antenna (often the same antenna is used for transmitting and receiving) and a receiver...

the day and investigated direction finding, for which he used a frame antenna. Round made important contributions to the development of the first vacuum...

names: authors list (link) "NASA's New Experimental Antenna Tracks Deep Space Laser". Mudgway, Douglas J. (2001). Uplink-Downlink: A History of the Deep Space...

is transmitted over-the-air by radio waves and received by a television antenna ; or satellite television, in which the television signal is transmitted...

and instead of a cell base station and antenna tower, they will have many small antennas attached to utility poles and buildings. Satellite phone (satphone)...

the transmitting antennas, each receiving antenna element has a phase shifter attached, through which the current from the antenna must pass to get to...

low-frequency antenna", U.S. patent 3,215,937. G. F. Leydorf (1966). "Antenna near field coupling system", U.S. patent 3,278,937. B. J. Eastlund (1987)...

and Bluetooth earphones. Antennas used include short whip antennas, rubber ducky antennas, sleeve dipoles, patch antennas, and increasingly the printed...