radiation resistance


Also found in: Dictionary, Wikipedia.

radiation resistance

A ficticious resistance in which the power radiated away from or collected by an antenna is considered to be dissipated. For a perfect antenna made of superconducting material, the ohmic losses (power dissipation arising from resistance) in the elements themselves are zero; the resistive part of the impedance presented at the feed point is then equal to the radiation resistance. In any practical antenna the ohmic losses are kept as small as possible in comparison to the radiated power. Maximum power transfer between transmitter or receiver and the antenna is effected when the feeder has a characteristic impedance equal to the radiation resistance.

radiation resistance

[‚rād·ē′ā·shən ri‚zis·təns]
(acoustics)
For a medium, the acoustic impedance of a plane wave in that medium. Also known as radiation impedance.
(electromagnetism)
The total radiated power of an antenna divided by the square of the effective antenna current measured at the point where power is supplied to the antenna.
References in periodicals archive ?
Innodisk's new in-vehicle products also feature rugged features designed for the transportation industry, such as lower power design, EMI radiation resistance, data protection in the case of power loss, wide operating temperature, conformal coatings, and ARM architecture support.
The presence of modified atmospheres did not affect the radiation resistance of the pathogens.
The clinical and physiological implications of RLIP76 extend to diverse processes, including stress resistance, chemotherapy drug resistance, radiation resistance, oxidative stress-induced disease, and even insulin resistance.
The rate of decrease of tensile strength correlated well with the order of radiation resistance.
If the loop circumference is fairly small its radiation resistance will be small.
The filter assemblies have been engineered to meet industry requirements, including high radiation resistance, low extractables, integral positive action vent/drain valves and high flow rates and throughputs, while minimal hold-up volumes ensure maximum product recovery.
Microbiological considerations are addressed in Section 5, which reviews the effects of irradiation on microorganisms and the factors influencing radiation resistance.
It is supreme in its radiation resistance," says Michael J.
The aim of this study is to synthesize and compare the radiation resistance of bulk polymerized 1H, 1H-heptafluorobutyl methacrylate, 1H, 1H, 3H-hexafluorobutyl methacrylate, and the copolymers of 1H, 1H-heptafluorobutyl methacrylate and 1H, 1H, 3H-hexafluorobutyl methacrylate to that of PMMA (Fig.
Comparable to solarization properties of standard UV optimized high -OH fibers with high radiation resistance, FBPI fiber features ultra-violet (UV) transmission down to 200 nm.
In an environment with increased radiation exposure polyimide or cyanate ester should ensure as potting material for the coil sufficient radiation resistance.
This investigation tests the radiation resistance of an electroactivepolymer called Synthetic Muscle, developed by RasLabs, which can contract and expand like real muscles.

Full browser ?