20 results found for: “microwave_cover”.

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Microwave

Microwave is a form of electromagnetic radiation with wavelengths shorter than other radio waves (as originally discovered) but longer than infrared waves...

Last Update: 2024-03-28T06:59:45Z Word Count : 6963 Synonim Microwave

Microwave oven

A microwave oven or simply microwave is an electric oven that heats and cooks food by exposing it to electromagnetic radiation in the microwave frequency...

Last Update: 2024-03-21T08:37:06Z Word Count : 10314 Synonim Microwave oven

Microwave cavity

A microwave cavity or radio frequency cavity (RF cavity) is a special type of resonator, consisting of a closed (or largely closed) metal structure that...

Last Update: 2024-01-09T07:18:46Z Word Count : 2656 Synonim Microwave cavity

Microwave (band)

Microwave is an American rock band from Atlanta, Georgia. They have supported bands such as The Wonder Years, letlive., Have Mercy, Man Overboard, Tiny...

Last Update: 2024-02-29T11:59:37Z Word Count : 595 Synonim Microwave (band)

Microwave Massacre

Microwave Massacre is a 1979 American black comedy horror film directed by Wayne Berwick and starring Jackie Vernon in his final feature film role. In...

Last Update: 2024-03-03T09:01:27Z Word Count : 1087 Synonim Microwave Massacre

Microwave engineering

Microwave engineering pertains to the study and design of microwave circuits, components, and systems. Fundamental principles are applied to analysis...

Last Update: 2023-12-20T01:50:48Z Word Count : 1061 Synonim Microwave engineering

Microwave radiometer

A microwave radiometer (MWR) is a radiometer that measures energy emitted at one millimeter-to-metre wavelengths (frequencies of 0.3–300 GHz) known as...

Last Update: 2023-11-29T05:50:28Z Word Count : 2296 Synonim Microwave radiometer

Microwave News

Microwave News reports on the health and environmental impacts of electromagnetic fields (EMFs) and other types of non-ionizing radiation, with special...

Last Update: 2021-07-21T09:36:02Z Word Count : 248 Synonim Microwave News

Microwave spectroscopy

Microwave spectroscopy is the spectroscopy method that employs microwaves, i.e. electromagnetic radiation at GHz frequencies, for the study of matter...

Last Update: 2023-10-16T04:58:37Z Word Count : 887 Synonim Microwave spectroscopy

Motion detector

useful systems. An active electronic motion detector contains an optical, microwave, or acoustic sensor, as well as a transmitter. However, a passive contains...

Last Update: 2024-02-04T09:46:55Z Word Count : 1083 Synonim Motion detector

Horn antenna

A horn antenna or microwave horn is an antenna that consists of a flaring metal waveguide shaped like a horn to direct radio waves in a beam. Horns are...

Last Update: 2023-12-20T18:10:37Z Word Count : 3364 Synonim Horn antenna

Frozen meal

dinners, also known as microwave meals, can be purchased at most supermarkets. They are stored frozen. To prepare them, the plastic cover is removed or vented...

Last Update: 2024-03-11T08:33:29Z Word Count : 2456 Synonim Frozen meal

Ball lightning

by microwave interference within an air-filled cylindrical cavity fed by a rectangular waveguide using a 2.45 GHz, 5 kW (maximum power) microwave oscillator...

Last Update: 2024-03-23T17:00:37Z Word Count : 8708 Synonim Ball lightning

Slow Dancing in the Dark

song by Mr. Mitch and Loud Luxury were released on 9 November 2018. A microwave-like 'ding' sound effect present in the song's pre-chorus spawned an internet...

Last Update: 2024-03-02T09:24:40Z Word Count : 764 Synonim Slow Dancing in the Dark

Microwave landing system

The microwave landing system (MLS) is an all-weather, precision radio guidance system intended to be installed at large airports to assist aircraft in...

Last Update: 2024-02-12T15:53:56Z Word Count : 2213 Synonim Microwave landing system

Metamaterial cloaking

sequentially repeating network – of identical elements. Additionally, for microwave frequencies, these materials are analogous to crystals for optics. Also...

Last Update: 2024-01-29T01:08:09Z Word Count : 7387 Synonim Metamaterial cloaking

Wilkinson Microwave Anisotropy Probe

The Wilkinson Microwave Anisotropy Probe (WMAP), originally known as the Microwave Anisotropy Probe (MAP and Explorer 80), was a NASA spacecraft operating...

Last Update: 2024-01-02T20:37:03Z Word Count : 4507 Synonim Wilkinson Microwave Anisotropy Probe

Special sensor microwave/imager

The Special Sensor Microwave/Imager (SSM/I) is a seven-channel, four-frequency, linearly polarized passive microwave radiometer system. It is flown on...

Last Update: 2023-08-06T23:21:57Z Word Count : 1049 Synonim Special sensor microwave/imager

Sea ice concentration

translucent in the microwave regime, especially at lower frequencies, microwave radiometers are quite weather insensitive. Since most microwave radiometers operate...

Last Update: 2024-02-09T09:49:48Z Word Count : 1336 Synonim Sea ice concentration

Cosmic Background Explorer

operated from 1989 to 1993. Its goals were to investigate the cosmic microwave background radiation (CMB or CMBR) of the universe and provide measurements...

Last Update: 2024-01-01T18:16:25Z Word Count : 4023 Synonim Cosmic Background Explorer

Main result

Microwave

Microwave is a form of electromagnetic radiation with wavelengths shorter than other radio waves (as originally discovered) but longer than infrared waves. Its wavelength ranges from about one meter to one millimeter, corresponding to frequencies between 300 MHz and 300 GHz, broadly construed. A more common definition in radio-frequency engineering is the range between 1 and 100 GHz (wavelengths between 30 cm and 3 mm), or between 1 and 3000 GHz (30 cm and 0.1 mm). The prefix micro- in microwave is not meant to suggest a wavelength in the micrometer range; rather, it indicates that microwaves are small (having shorter wavelengths), compared to the radio waves used in prior radio technology. The boundaries between far infrared, terahertz radiation, microwaves, and ultra-high-frequency (UHF) are fairly arbitrary and are used variously between different fields of study. In all cases, microwaves include the entire super high frequency (SHF) band (3 to 30 GHz, or 10 to 1 cm) at minimum. A broader definition includes UHF and extremely high frequency(EHF) (millimeter wave; 30 to 300 GHz) bands as well. Extremely high frequency is the International Telecommunication Union designation for the band of radio frequencies in the electromagnetic spectrum from 30 to 300 gigahertz (GHz) Frequencies in the microwave range are often referred to by their IEEE radar band designations: S, C, X, Ku, K, or Ka band, or by similar NATO or EU designations. Microwaves travel by line-of-sight; unlike lower frequency radio waves, they do not diffract around hills, follow the earth's surface as ground waves, or reflect from the ionosphere, so terrestrial microwave communication links are limited by the visual horizon to about 40 miles (64 km). At the high end of the band, they are absorbed by gases in the atmosphere, limiting practical communication distances to around a kilometer. Microwaves are widely used in modern technology, for example in point-to-point communication links, wireless networks, microwave radio relay networks, radar, satellite and spacecraft communication, medical diathermy and cancer treatment, remote sensing, radio astronomy, particle accelerators, spectroscopy, industrial heating, collision avoidance systems, garage door openers and keyless entry systems, and for cooking food in microwave ovens.


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