Wave propagation structures for eliminating voltage surges and absorbing transients
First Claim
1. Structure adapted to propagate an electromagnetic wave, comprising:
- at least one conductive member, and an adjacent dielectric material distributed in a wave propagation direction, through which said wave passes, said dielectric material exhibiting non-linear conductivity such that it is substantially non-conductive at a rated applied voltage of the structure, and substantially conductive at any abnormally high applied voltage, said distributed dielectric material comprising a granular, conductive polycrystaline material having thin interstitial, substantially insulating layers disposed between grains of said polycrystaline material.
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Accused Products
Abstract
A four-pole or three-pole structure adapted to propagate an electromagnetic wave, such as an electrical line or cable or electronic component, comprises a lossy non-linear dielectric material distributed in a wave propagation direction. This material has a non-linear conduction characteristic whereby it is substantially non-conductive at any rated applied voltage of the structure and substantially conductive at any abnormally high applied voltage. It consists of a polycrystaline material comprising thin interstitial layers procuring a tunneling or Schottky type effect in response to a high electric field resulting from such abnormally high applied voltages. It absorbs both voltage surges (varistor effect in the time domain) and high-speed transients (lowpass filter effect in the frequency domain). The structure can be used to provide protection against lightning strikes, nuclear electromagnetic pulses, electrostatic discharges and radio-frequency interference in general.
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Citations
22 Claims
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1. Structure adapted to propagate an electromagnetic wave, comprising:
- at least one conductive member, and an adjacent dielectric material distributed in a wave propagation direction, through which said wave passes, said dielectric material exhibiting non-linear conductivity such that it is substantially non-conductive at a rated applied voltage of the structure, and substantially conductive at any abnormally high applied voltage, said distributed dielectric material comprising a granular, conductive polycrystaline material having thin interstitial, substantially insulating layers disposed between grains of said polycrystaline material.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
Specification