Pulse power generation from thermal quenching of magnetic materi

Details Pulse power generation from thermal quenching of magnetic materi Pulse power generation from thermal quenching of magnetic materi

1991-05-06

1994-04-05

Kuntz, Curtis

Telecommunications

Transmitter

Mobile or portable

375 59, H04B 1034

Patent

active

053013620

ABSTRACT:
Generation of a high power rf pulse is achieved in a simple transmitting device that uses permanent magnet material(s) to store energy. Such energy is released through the thermal quenching of the magnetic material(s). Thermal quenching is accomplished, e.g., through an explosion. Such thermal quenching is facilitated in one embodiment by using a magnetic composite material comprising both magnetic particles and explosive particles. The rf pulse thus generated may be used for any desired purpose, e.g., tracking or research. The transmitting device includes a permanent magnet for establishing a constant magnetic flux for so long as the magnet retains its normal magnetic properties. The magnetic flux passes through a coil. Upon the thermal quenching of the magnetic material(s), the magnetic properties rapidly change, causing the magnetic flux to also rapidly change, thus inducing a high power electrical pulse in the coil. This high power electrical pulse may be used in a broad band spark transmitter or used to power a narrow band transmitter, causing the rf pulse to be generated. In one embodiment, the power of the electrical pulse is increased by charging a capacitor, followed by a very short discharge of the capacitor.

REFERENCES:
patent: 3335239 (1967-08-01), Fey
patent: 5125104 (1992-06-01), Ohkawa

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