DEVICE AND METHOD FOR DETECTING NON-LINEAR ELECTRONIC COMPONENTS OR CIRCUITS ESPECIALLY OF A BOOBY TRAP OR THE LIKE
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Abstract
The invention relates to a device and a method wherein tunable transmitters and detectors (receivers) are integrated into a non-linear detection system and a narrow-band signal having a variable frequency is used. The scanable frequency range should be between 10-100 MHz. The frequency acceptance range for the second and third harmonic is adjusted according to the transmit frequency.
53 Citations
14 Claims
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1-7. -7. (canceled)
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8. A device for detecting nonlinear electronic components or circuits of a target, comprising:
- a junction detector with at least one transmitter and one receiver and at least one antenna, by which a signal with a frequency (f1) is emitted, which signal is coupled into the nonlinear circuit and converted to signals with frequencies (f2, f3) that are multiples of the emitted frequency (f1), which are radiated to the receiver and received by the at least one antenna; and
a device integrated in the junction detector, by which the frequency (f1) of the narrow-band signal is varied within a predeterminable bandwidth, so that a minimal value is obtained for a sum of the attenuation and coupling losses at an optimal coupled signal. - View Dependent Claims (9, 10)
- a junction detector with at least one transmitter and one receiver and at least one antenna, by which a signal with a frequency (f1) is emitted, which signal is coupled into the nonlinear circuit and converted to signals with frequencies (f2, f3) that are multiples of the emitted frequency (f1), which are radiated to the receiver and received by the at least one antenna; and
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11. A method for detecting nonlinear electronic components or circuits of a target, which device has a junction detector with at least one transmitter and one receiver and at least one antenna, the method comprising the steps of:
- emitting a signal with a frequency (f1), which signal is coupled into the nonlinear circuit and converted to signals with frequencies (f2, f3) that are multiples of the emitted frequency (f1);
radiating the signals to the receiver, which signals are received by the at least one antenna; and
varying the frequency (f1) of the narrow-band signal within a predeterminable bandwidth, so that a minimal value is obtained for a sum of the attenuation and coupling losses at an optimal coupled signal. - View Dependent Claims (12, 13, 14)
- emitting a signal with a frequency (f1), which signal is coupled into the nonlinear circuit and converted to signals with frequencies (f2, f3) that are multiples of the emitted frequency (f1);
Specification