a ground dipole, also referred to as an earth dipole antenna, transmission line antenna, and in technical literature as a horizontal electric dipole (HED)...

some type of ground. A common example of a dipole is the "rabbit ears" television antenna found on broadcast television sets. All dipoles are electrically...

between the ends of the cable, generating ELF waves; this is called a ground dipole. The original design was projected to cost billions and consume 800...

signals to their submerged submarines, consisting of huge grounded wire antennas (ground dipoles) 15–60 km (9–37 mi) long driven by transmitters producing...

dipole moment is the combination of strength and orientation of a magnet or other object or system that exerts a magnetic field. The magnetic dipole moment...

Sloper, T2FD, Dipole) can be used for NVIS communication, with horizontal dipoles or inverted V dipoles at about ⁠ 1 /5⁠ wavelength above ground giving the...

half of the dipole (a) reflected from the ground plane will seem to come from an image antenna (b) forming the missing half of the dipole, which adds...

is a ground dipole. This is simply an arrangement of two widely separated electrodes, through which the transmission current is fed into the ground. As...

The G5RV antenna is a dipole with a symmetric resonant feeder line, which serves as impedance matcher for a 50 Ω coax cable to the transceiver. Louis Varney...

become broadband. Ground dipoles are otherwise ordinary dipole antennas that are actually buried in the soil; in this instance "ground" really does literally...

vertical dipole depends on the height of the installation. If the end of the lower dipole leg is λ/80 above ground, i.e. close to the ground, the radiation...

molecular polarity if the bond dipoles cancel each other out by symmetry. Polar molecules interact through dipole-dipole intermolecular forces and hydrogen...

with folded dipole elements, and no director(s). Because of the folded ends, the element lengths are approximately 70% of the equivalent dipole length. The...

advantage in reducing radiation toward the sky or ground in favor of horizontal direction(s). A dipole antenna oriented horizontally sends no energy in...

transmitters ground dipole antennas are used. Such structures require no tall masts. They consist of two electrodes buried deep in the ground at least a...

element center-fed dipole antenna. So a monopole mounted over an ideal ground plane has a radiation pattern identical to a dipole antenna. The feedline...

submerged submarines hundreds of meters underwater. These employ huge ground dipole antennas 20–60 km long excited by megawatts of transmitter power, and...

the electron magnetic moment, or more specifically the electron magnetic dipole moment, is the magnetic moment of an electron resulting from its intrinsic...

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

a horizontal dipole, but with the two sides bent down towards the ground, typically creating a 120- or 90-degree angle between the dipole legs. It is typically...

effectiveness, for example, in anti-submarine warfare." Extremely low frequency Ground dipole Super low frequency TACAMO, radio system intended to survive nuclear...

Caving equipment#Communication Earth transmission system (in French) Ground dipole Super low frequency (SLF) Extremely low frequency (ELF) David Gibson...

log-periodic antenna is the log-periodic dipole array or LPDA, The LPDA consists of a number of half-wave dipole driven elements of gradually increasing...

asymmetrical dipole antenna than as a monopole antenna. The gain will be somewhat lower than a dipole, or a quarter-wave whip with an adequate size ground plane...

arises from the spin of the protons and neutrons. It is mainly a magnetic dipole moment; the quadrupole moment does cause some small shifts in the hyperfine...

communicate with submerged submarines, and subsequently invented the ground dipole, the only antenna that has proven practical for use at ELF frequencies...

65 G). As an approximation, it is represented by a field of a magnetic dipole currently tilted at an angle of about 11° with respect to Earth's rotational...

an electric dipole moment p at ( 0 , 0 , a ) {\displaystyle (0,0,a)} above an infinite grounded conducting plane in the xy-plane is a dipole moment at (...

grounded beam is attached. The addition of parasitic elements gives a diminishing improvement in the antenna's gain. Adding a reflector to a dipole,...

be changed. The spin of a charged particle is associated with a magnetic dipole moment with a g-factor that differs from 1. (In the classical context, this...