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radio wave

Also known as radio waves, radiofrequency electromagnetic field, radiofrequency fields, RF-EMF

type of electromagnetic radiation

AI overview

A radio wave is a type of electromagnetic radiation, the same kind of energy that makes up light and X-rays but with much longer wavelengths. Radio waves matter because they're used to transmit information over long distances without wires, making possible technologies like radio broadcasts, cell phones, and wireless internet.

AI-generated from the Wikipedia summary — may contain errors.

Research

32,763 papers

Modeling Radio Wave Propagation for Wireless Sensor Networks in Vegetated Environments: A Systematic Literature Review.Sensors (Basel, Switzerland) · 2022Barrios-Ulloa A, Ariza-Colpas PP, Sánchez-Moreno H et al.DOI: 10.3390/s22145285
Non-ionizing radiation as possible carcinogen.ReviewInternational journal of environmental health research · 2022Gupta S, Sharma RS, Singh RDOI: 10.1080/09603123.2020.1806212
High-frequency radio wave electrocautery in modified Hotz operations for epiblepharon correction.BMC ophthalmology · 2021Lee H, Youn J, Baek SDOI: 10.1186/s12886-021-02202-z
Defined radio wave frequencies attenuate the head-twitch response in mice elicited by (±)-2,5-dimethoxy-4-iodoamphetamine.Electromagnetic biology and medicine · 2024Vu MO, Butters BM, Canal CE et al.DOI: 10.1080/15368378.2024.2418552
Radio frequency continuous-wave and time-domain EPR imaging and Overhauser-enhanced magnetic resonance imaging of small animals: instrumental developments and comparison of relative merits for functional imaging.ReviewNMR in biomedicine · 2004Subramanian S, Matsumoto K, Mitchell JB et al.DOI: 10.1002/nbm.897
[Radio wave methods of treatment in urogynecology].Urologiia (Moscow, Russia : 1999) · 2019Leshunov EV, Martov AG
Radiofrequency electromagnetic radiation from Wi-fi and its effects on human health, in particular children and adolescents. Review.ReviewRoczniki Panstwowego Zakladu Higieny · 2020Magiera A, Solecka JDOI: 10.32394/rpzh.2020.0125
[Radio wave electrotherapy with a radiofrequency of 448 khz for the treatment of patients with organic erectile dysfunction: a prospective, randomized, blind, Sham-controlled, parallel-group study].Urologiia (Moscow, Russia : 1999) · 2022Chuvalov LL, Korolev DO, Azilgareeva KR et al.

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Wikidata facts

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Commons category: Radio waves

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~24 min read

Article

Animation of a half-wave dipole antenna radiating radio waves, showing the electric field lines. The antenna in the center is two vertical metal rods connected to a radio transmitter (not shown). The transmitter applies an alternating electric current to the rods, which charges them alternately positive (+) and negative (−). Loops of electric field leave the antenna and travel away at the speed of light; these are the radio waves. In this animation the action is shown slowed down tremendously.

Radio waves (formerly called Hertzian waves) are a type of electromagnetic radiation with the lowest frequencies and the longest wavelengths in the electromagnetic spectrum, typically with frequencies below 300 gigahertz (GHz) and wavelengths greater than 1 millimeter (3⁄64 inch), about the diameter of a grain of rice. Radio waves with frequencies above about 1 GHz and wavelengths shorter than 30 centimeters are called microwaves. Like all electromagnetic waves, radio waves in a vacuum travel at the speed of light, and in the Earth's atmosphere at a slightly lower speed. Radio waves are generated by charged particles undergoing acceleration, such as time-varying electric currents. Naturally occurring radio waves are emitted by lightning and astronomical objects, and are part of the blackbody radiation emitted by all warm objects.