Electromagnetic Field Detection Systems and Methods
First Claim
1. An apparatus configured to detect electromagnetic field events, the apparatus comprising:
- an antenna; and
a circuit electrically connected to the antenna, the circuit including;
an equalizer communicatively connected to the antenna via a direct current isolation circuit, the equalizer compensating for differentiating frequency response of the antenna;
a logarithmic amplifier electrically connected to the equalizer and configured to generate a range of signals based on signals received at the antenna;
a peak detector receiving signals from the logarithmic amplifier and configured to capture a peak value of the signals;
wherein an electromagnetic field event is detected at least in part based on the peak value.
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Accused Products
Abstract
A method and apparatus configured to detect electromagnetic field events are disclosed. One apparatus includes an antenna and a circuit electrically connected to the antenna. The circuit includes electronics communicatively connected to the antenna via a direct current isolation circuit and an equalizer compensating for the differentiating frequency response of the antenna. The circuit also includes a logarithmic amplifier electrically connected to the equalizer and configured to generate a range of signals based on signals received at the antenna. The circuit further includes a peak detector receiving signals from the equalizer and configured to capture a peak value of the signals. The electromagnetic field event is detected at least in part based on the peak signal value.
72 Citations
25 Claims
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1. An apparatus configured to detect electromagnetic field events, the apparatus comprising:
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an antenna; and a circuit electrically connected to the antenna, the circuit including; an equalizer communicatively connected to the antenna via a direct current isolation circuit, the equalizer compensating for differentiating frequency response of the antenna; a logarithmic amplifier electrically connected to the equalizer and configured to generate a range of signals based on signals received at the antenna; a peak detector receiving signals from the logarithmic amplifier and configured to capture a peak value of the signals; wherein an electromagnetic field event is detected at least in part based on the peak value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of detecting high field electromagnetic events, the method comprising:
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monitoring a magnetic field of an electromagnetic wave using a shielded loop magnetic antenna; capturing a peak signal value of an analog signal based on a magnitude of the magnetic field at a peak detector communicatively connected to the shielded loop magnetic antenna; and determining the existence of a high field electromagnetic event based at least in part upon the captured peak signal value, wherein determining the existence of the high field electromagnetic event includes inferring an electrical field based on the magnetic field. - View Dependent Claims (19, 20, 21, 22)
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23. An apparatus configured to detect high field electromagnetic field events, the apparatus comprising
a first shielded loop magnetic antenna; -
a second shielded loop magnetic antenna oriented in a direction normal to the first shielded loop magnetic antenna; a third shielded loop magnetic antenna oriented in a direction normal to the first and second shielded loop magnetic antennas; a first circuit electrically connected to the first shielded loop magnetic antenna, the first circuit configured to capture a first peak value of signals received at the first shielded loop magnetic antenna; a second circuit electrically connected to the second shielded loop magnetic antenna, the second circuit configured to capture a second peak value of signals received at the second shielded loop magnetic antenna; a third circuit electrically connected to the third shielded loop magnetic antenna, the third circuit configured to capture a third peak value of signals received at the third shielded loop magnetic antenna; a processor configured to detect an electromagnetic field event based on the peak value detected at least in part based on the first peak value, the second peak value, and the third peak value. - View Dependent Claims (24, 25)
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Specification