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US 8,493,160 B2Granted
Electromagnetic signal power limiter and method of designing the power limiter
AssigneeThales
InventorsPierre Nicole, Alain Phommahaxay, Gaelle Lissorgues
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Abstract
The present invention relates to an electromagnetic signal power limiter and its design method. The power limiter for an electromagnetic signal includes at least one transmission line for the signal. The transmission line is made up of a number of passive micro-diodes with ballistic electron transport. The micro-diodes are distributed on the transmission line, and are implemented in a controlled atmosphere. The invention applies notably to radiofrequency or hyperfrequency waves received by detection and communication devices.
Claims34
A power limiter for an electromagnetic signal comprising:
- a transmission line for the signal, of a length that is a function of a wavelength of the signal, said transmission line including:
- a main transmission line for the signal;
- a first ground line;
- first passive micro-diodes with ballistic electron transport, said first micro-diodes being connected between the main transmission line and the first ground line, said first micro-diodes being distributed along the transmission line;
- a second ground line;
- second passive micro-diodes with ballistic electron transport, said second micro-diodes being connected between the main transmission line and the second ground line, said second micro-diodes being distributed along the transmission line;
- a cavity, comprising an environment that has a defined composition in terms of chemical species, at a defined pressure, in which the transmission line is placed.
4 more elements
Dependencies are inferred from the claim text.