Reconfigurable radiation desensitivity bracket systems and methods
First Claim
1. A device for reducing the effects of radiation-induced currents on electrical circuitry, comprising:
- an electrical circuit comprising a groundplane; and
,a radiation source generating undesirable, radiation-induced groundplane currents in at least one area of the groundplane;
a radiation-parasitic bracket coupled to the groundplane for modifying current flow patterns of the undesirable, radiation-induced groundplane currents to produce distributed groundplane currents, the bracket comprising;
a conductive element connected to the groundplane, the conductive element having a fixed physical length and a selectable effective electrical length.
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Accused Products
Abstract
A method and device bracket are presented for reconfigurable radiation desensitivity. The method includes: accepting a radiated wave from a source such as a transmitter, antenna, microprocessor, electrical component, integrated circuit, camera, connector, or signal cable; in response to the radiated wave, creating a first current per units square (I/units2) through a groundplane of an electrical circuit such as a printed circuit board (PCB), display, connector, or keypad; accepting a control signal; and, in response to the control signal, creating a second I/units2 through the groundplane. This step couples the groundplane to a bracket having a selectable effective electrical length. Typically, the groundplane is coupled to a bracket with a fixed physical length section to provide a combined effective electrical length responsive to the fixed physical length and the selectable effective electrical length. The coupling mechanism can result from transistor coupling, p/n junction coupling, selectable capacitive coupling, or mechanically bridging.
176 Citations
19 Claims
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1. A device for reducing the effects of radiation-induced currents on electrical circuitry, comprising:
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an electrical circuit comprising a groundplane; and
,a radiation source generating undesirable, radiation-induced groundplane currents in at least one area of the groundplane; a radiation-parasitic bracket coupled to the groundplane for modifying current flow patterns of the undesirable, radiation-induced groundplane currents to produce distributed groundplane currents, the bracket comprising; a conductive element connected to the groundplane, the conductive element having a fixed physical length and a selectable effective electrical length. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A bracket for distributing groundplane currents, comprising:
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a conductive element connected to a groundplane, the conductive element comprising at least one fixed electrical length section and at least one selectable electrical length section; and a control input connected to the at least one selectable electrical length section, wherein an effective electrical length of the at least one selectable electrical length section is responsive to control signals input on the control input; wherein an effective electrical length of the bracket is based on the combination of effective electrical lengths of the fixed electrical length section and the at least one selectable electrical length section, and the bracket modifies current flow patterns of undesirable, radiation-induced groundplane currents generated by a radiation source to produce distributed groundplane currents. - View Dependent Claims (16, 17, 18)
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19. A device comprising:
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an electrical circuit comprising a groundplane; and a conductive radiation-parasitic bracket connected to the groundplane and configured to distribute radiation-induced current flow patterns on the groundplane into one or more predetermined patterns in accordance with a control signal, the conductive radiation-parasitic bracket comprising a fixed electrical length section and a selectable electrical length section responsive to the control signal.
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Specification