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You’ve Got The Portable Radio, Now What About The Antenna?

There's an old saying in the amateur radio community that when it comes to antennas all you need is a piece of wet string.
F�r 4 m�nader sedan

Ultra-wideband microstrip folded antenna for wireless LAN, 5G and Internet of Things applications

This paper presents an ultra-wideband (UWB) microstrip antenna with a simple structure operating at 2.2–6 GHz bandwidth. The proposed antenna has been...
F�r 2 veckor sedan

Research on Electromagnetic Scattering Influence of Transmission Towers on Medium Wave Antenna Based on the Characteristic Mode Theory

Wiley Online Library

In this paper, the electromagnetic scattering effect of �800 kV UHV DC transmission tower on the medium-wave antenna is investigated based on the...
F�r 11 m�nader sedan

Customizing Tests for Today’s Electronically Scanned Arrays

Microwaves & RF

The first scanned phased arrays used a single transmitter and receiver connected to all antenna elements through phase shifters.
F�r 9 m�nader sedan

Inside The ‘Magic Radio’ Protecting Russian Drones From Jamming

A new jam-resistant radio made in Russia relies on imported commercial components and shows how effective cheap consumer electronics are even on the...
F�r 11 m�nader sedan

DARPA asks industry to demonstrate RF and microwave filtering and interference suppression for AESA antennas

Military Aerospace

COFFEE seeks to create RF and microwave filter technology to mitigate AESA interference and enhance performance in 2 GHz to 18 GHz frequency ranges.
F�r 6 m�nader sedan

High gain quasi-omnidirectional dipole array fed by radial power divider for millimeter-wave IoT sensing

This article presents the design and implementation of a dipole array antenna based on a radial waveguide power divider for millimeter-wave IoT sensing...
F�r 4 m�nader sedan

Millimeter wave is key to Verizon’s FWA, DAS strategies

Millimeter wave was the first 5G spectrum Verizon was able to deploy, but then took a backseat to C-band. But mmWave still figures prominently in the...
F�r 6 m�nader sedan

Powering Planes With Microwaves Is Not the Craziest Idea

Gates Ventures' Orca Sciences founder explains how beaming electromagnetic radiation from ground antennas could power commercial airplanes as a way to...
F�r 5 m�nader sedan

Radio Frequency Burns, Flying A Kite, And You

The RF burns from the kite antenna actually generate a little puff of smoke on contact. An experiment was used to demonstrate this fact involving a kite and a...
F�r 7 m�nader sedan