The authors are president and vice president, respectively, of Communications Technologies Inc., a consultancy in Marlton, N.J. Fig. 1: Measured vertical (purple) and horizontal (blue) field strength ...

The use of directional arrays in FM broadcasting has increased greatly in 30 years. Especially in the NCE reserved band, a DA can increase the operating power of a station significantly while still ...

The ultra-wideband, omnidirectional circular ring antenna has a height of 0.047 times the low-frequency wavelength and a width of 0.19 times the wavelength, offering an impedance bandwidth of 12:1.

National Institute of Standards and Technology (NIST) researchers have developed a method for assessing and selecting optimal antenna design for future fifth-generation (5G) cellphones and other ...

At its Aug. 4 meeting, the FCC set deadlines for TV stations to either build out maximized DTV facilities if they elect to stay on their current DTV channel after analog is shut down, or meet minimum ...

An overview of antenna design considerations is presented. The design considerations include system requirements, antenna selection, antenna placement, antenna element design/simulation, and antenna ...

Written by Joseph Darlington, P.E. When building any radio system, the scarcest and most precious system component is not the radios, the antennas nor the towers, but available “clean” radio channels ...

Editor's note: To view a PDF version of this article, click here. Propagating radio waves all begin and end with the same component: the antenna. This month and next, I will highlight communication's ...

Why there’s a need for a lightweight, easily reconfigured antenna. The clever and simple design devised by the researchers. Some aspects of performance evaluations in various configurations. Antennas ...