Patch antenna layer for tamper event detection
AssigneeInternational Business Machines Corporation
InventorsLAYNE A. BERGE, JOHN R. DANGLER, MATTHEW S. DOYLE, THOMAS W. LIANG, MANUEL OROZCO
Life of this patent
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Abstract
A cryptographic printed circuit board (PCB) includes a patch antenna threat event detection layer and a resonant frequency monitoring component. The patch antenna threat event detection layer is embedded within a PCB layer stack of the cryptographic PCB and includes at least one antenna. The resonant frequency monitoring component is configured to monitor a resonant frequency associated with the at least one antenna and to trigger one or more tamper response operations responsive to detecting a resonant frequency shift.
Claims20
A cryptographic printed circuit board (PCB) comprising:
- a patch antenna threat event detection layer embedded within a PCB layer stack of the cryptographic PCB, the patch antenna threat event detection layer including at least one antenna;
- a resonant frequency monitoring component configured to monitor a resonant frequency associated with the at least one antenna and to trigger one or more tamper response operations responsive to detecting a resonant frequency shift.
A method of utilizing a patch antenna layer for tamper event detection, the method comprising:
- monitoring a resonant frequency of at least one antenna of a patch antenna layer embedded within a printed circuit board (PCB) layer stack of a cryptographic PCB;
- and
- responsive to detecting a resonant frequency shift of the at least one antenna, triggering a tamper response operation.
An electronic device comprising:
- an electronic component;
- a cryptographic printed circuit board (PCB) communicatively coupled to the electronic component, wherein a patch antenna threat event detection layer is embedded within a PCB layer stack of the cryptographic PCB, the first patch antenna threat event detection layer including at least one antenna;
- and
- a resonant frequency monitoring component configured to monitor a resonant frequency associated with the at least one antenna and to trigger one or more tamper response operations responsive to detecting a resonant frequency shift.
Dependencies are inferred from the claim text.