LPDA The LPDA or log-periodic dipole array antenna, which is mostly used for VHF TV signals, consists of several dipoles arranged in echelon to make a very wideband antenna. "For any frequency ...

The series of VHF/UHF exposed dipole arrays, omnidirectional collinear and Yagi antennas cover frequencies of 135 MHz to 512 MHz and feature high-power handling of over 200 watts. The rugged outdoor ...

A dipole antenna has its best signal gain when its length is a signal's half wavelength. Figure 2a shows the typical radiating pattern of a single dipole antenna at a frequency's half wavelength.

Origami-Inspired Radiation Pattern and Shape Reconfigurable Dipole Array Antenna at C-band for CubeSat Applications. IEEE Transactions on Antennas and Propagation, 2020; 1 DOI: 10.1109/TAP.2020. ...

[AD0MZ]’s adjustable dipole solves that problem, making the antenna usable from the 80-meter band down to 10 meters. To accomplish this feat it uses something familiar to any sailor: a capstan ...

Much of the work of Spectrum Planning Group is based on well-established principles of 'antennas and propagation'. Propagation matters have received a lot of attention over the years and much has ...

A controlled radiated pattern antenna can be an effective way to protect GPS receivers against jamming. A new CRPA, composed of seven elements, works on the E5a, E5b, E6, L2, and L1 bandwidths. This ...

FarView is a low frequency (5-40 MHz) radio telescope array comprised of 100,000 dipole antennas that is enabled by the manufacture of these dipoles on the lunar surface. FarView’s primary science is ...