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Microwave phase shifter with liquid dielectric having metallic particles in suspension

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TLDR
In this paper, an electrically controllable anisotropy dielectric medium is used in the microwave beam path for phase shifters and electronic beam steering antennas, which use an electric anisotropic medium.
Abstract
Microwave phase shifters and electronic beam steering antennas are described which use an electrically controllable anisotropy dielectric medium in the microwave beam path.

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Rf phase shifter

TL;DR: In this article, an electrically controlled RF phase shifter with an active medium formed by a ceramic material is described. But the phase of the RF power exiting the phase shifters will depend on the effective electrical length of the material in the active medium, which is determined by varying the strength of an electric field in which it is immersed.
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References
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Polarized wave transmitting system

TL;DR: In this paper, the present invention relates to a signalling system for transmitting polarized ultra short, waves, particularly-waves having lengths appreciably below' one meter, and relates to radio beacon: or- signalling device- for transmitting radio signals.