Fusion Lighting, Inc.

Celsiustech Electronics Ab

Jan Grabs

Per Sj&ouml;strand

Alf N&auml;svall

Kjell Lidstr&ouml;m

This invention concerns a repeater jamming transmitter ( ), and a casing arrangement with repeater jamming transmitter. The repeater jamming transmitter ( ) comprises transmitter antenna ( ), receiver antenna ( ) and electronics part ( ) with amplifier and control circuits. In order to avoid self-oscillation caused by leakage between the transmitter antenna ( ) and the receiver antenna ( ) and to maintain the isolation a special connection arrangement ( ) is included in the repeater jamming transmitter. By means of the connection arrangement the amplification of the repeater jamming transmitter can be increased without self-oscillation arising.

Repeater jamming transmitter and casing for the same

The present invention refers to a method for controlling a magnetron filament current. The control is provided by detecting the dynamic impedance or a noise level of the magnetron and by controlling the magnetron filament current based thereupon.

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Bålsta, Sweden

Jan Grabs