or other components are no longer reciprocal devices. Since electromagnetic radiation is dipole radiation, it is not possible to build an antenna that... 14 KB (2,081 words) - 17:27, 22 April 2024 |
mental health issues Wireless device radiation and health – some restrictions on usage have been proposed to avoid potential over-exposure to wireless radiation... 2 KB (281 words) - 09:34, 7 May 2024 |
5G (redirect from 5th-Generation Wireless Systems) network. 1G 2G 3G 4G 5G wireless power 6G Wireless device radiation and health Hoffman, Chris (January 7, 2019). "What is 5G, and how fast will it be?"... 156 KB (14,375 words) - 15:47, 13 May 2024 |
sonar, seismology, wireless communications, radio astronomy, acoustics and biomedicine. Adaptive beamforming is used to detect and estimate the signal... 21 KB (3,002 words) - 23:35, 20 September 2023 |
of field strength and the expression of receiving antenna performance by its effective area rather than by its power gain or radiation resistance. Few follow... 10 KB (1,204 words) - 12:43, 15 April 2024 |
Radiation resistance is that part of an antenna's feedpoint electrical resistance caused by the emission of radio waves from the antenna. A radio transmitter... 32 KB (3,945 words) - 21:51, 8 May 2024 |
Radioactive decay (redirect from Nuclear Radiation) energy by radiation. A material containing unstable nuclei is considered radioactive. Three of the most common types of decay are alpha, beta, and gamma decay... 96 KB (10,002 words) - 07:38, 11 May 2024 |
In antenna theory, radiation efficiency is a measure of how well a radio antenna converts the radio-frequency power accepted at its terminals into radiated... 9 KB (1,227 words) - 09:52, 8 July 2023 |
1G (redirect from 1G wireless) generations 2G 3G 3.5G 4G 4.5G 5G Wireless Application Protocol Wireless device radiation and health "Chapter 3 - Technology". Wireless Communications in Developing... 8 KB (878 words) - 06:47, 7 April 2024 |
Wi-Fi (redirect from Wireless Fidelity) family of wireless network protocols based on the IEEE 802.11 family of standards, which are commonly used for local area networking of devices and Internet... 122 KB (12,937 words) - 07:49, 30 April 2024 |
referred to as wireless sets into the 1960s. The term wireless was revived in the 1980s and 1990s mainly to distinguish digital devices that communicate... 32 KB (3,309 words) - 16:36, 25 April 2024 |
beam is the region of the radiation pattern containing the highest power or exhibiting the greatest field strength. The radiation pattern of most antennas... 2 KB (295 words) - 12:14, 27 March 2024 |
measures the degree to which the radiation emitted is concentrated in a single direction. It is the ratio of the radiation intensity in a given direction... 19 KB (2,864 words) - 04:45, 19 March 2024 |
electromagnetic radiation within a given total surface area or volume. Such fractal antennas are also referred to as multilevel and space filling curves... 15 KB (1,713 words) - 01:23, 16 May 2023 |
Balun (section Radio and television) originally, but now derived from "balancing unit") is an electrical device that allows balanced and unbalanced lines to be interfaced without disturbing the impedance... 15 KB (1,923 words) - 08:47, 23 April 2024 |
IPhone 12 (category Products and services discontinued in 2023) comply with French law regarding wireless device radiation and health which requires phones to be bundled with and promote use of hands-free accessories... 47 KB (3,630 words) - 16:43, 25 April 2024 |
reflecting surface for radio waves. Ground plane shape and size play major roles in determining its radiation characteristics including gain. To function as a... 8 KB (1,066 words) - 11:53, 15 April 2024 |
antennas is to communicate wirelessly over long distances, well into their far fields, and for calculations of radiation and reception for many simple... 36 KB (5,196 words) - 04:53, 13 January 2024 |
maxima) of the far field radiation pattern of an antenna or other radiation source, that are not the main lobe. The radiation pattern of most antennas... 7 KB (741 words) - 09:55, 8 March 2024 |
electromagnetic radiation, like light waves, radio waves are affected by the phenomena of reflection, refraction, diffraction, absorption, polarization, and scattering... 27 KB (3,433 words) - 01:50, 13 May 2024 |
MIMO (redirect from Multiple-input and multiple-output) essential element of wireless communication standards including IEEE 802.11n (Wi-Fi 4), IEEE 802.11ac (Wi-Fi 5), HSPA+ (3G), WiMAX, and Long Term Evolution... 48 KB (6,053 words) - 17:06, 25 April 2024 |
2G (redirect from 2.5G wireless) harm and possibly deaths. Cliff effect Dropout List of mobile phone generations Mobile radio telephone, also known as 0G 1G 3G 4G 5G Wireless device radiation... 46 KB (2,920 words) - 00:57, 3 May 2024 |