Microwireless integrated environmental sensor and transmitter system
First Claim
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1. A wireless environmental sensor system, comprising:
- a radio frequency circuit having at least one circuit element;
an environmental sensor element electromagnetically coupled to the at least one circuit element of the radio frequency circuit, whereby the electromagnetic coupling between the environmental sensor element and the at least one circuit element is modified through a response by the environmental sensor element to the sensed environment to provide a radio frequency output signal responsive to the sensed environment; and
an output port integral to said radio frequency circuit for wireless communication of the radio frequency output signal.
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Abstract
The invention is a microminiature wireless environmental sensor that has integrated both sensor and transmitter functions into one function. The basic operating principle for the device is that variable components of an RF circuit can be interfaced to the outside world environmental signals resulting in proportional changes in the transmission characteristics or transmission of data/bits from the RF transmitter circuit. This utilization of environmentally sensitive variable elements within a wireless transceiver circuit permits the fusion of both sensor and communications function into an integrated single function.
30 Citations
23 Claims
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1. A wireless environmental sensor system, comprising:
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a radio frequency circuit having at least one circuit element; an environmental sensor element electromagnetically coupled to the at least one circuit element of the radio frequency circuit, whereby the electromagnetic coupling between the environmental sensor element and the at least one circuit element is modified through a response by the environmental sensor element to the sensed environment to provide a radio frequency output signal responsive to the sensed environment; and an output port integral to said radio frequency circuit for wireless communication of the radio frequency output signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A wireless environmental sensor system, comprising:
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a radio frequency circuit comprising at least one coiled metal trace; a mechanical environmental sensor element electromagnetically coupled to the at least one coiled metal trace of the radio frequency circuit, whereby the electromagnetic coupling between the environmental sensor element and the at least one coiled metal trace is modified by a mechanical response of the environmental sensor element to the sensed environment to provide a radio frequency output signal responsive to the sensed environment; and an output port integral to said radio frequency circuit for wireless communication the radio frequency output signal. - View Dependent Claims (12, 13, 14, 15, 16)
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17. A wireless environmental sensor, comprising:
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a sensor element comprising a mechanical means interactive with the surrounding environment, said mechanical means operable as means for toning a radio frequency circuit; a substantially coiled metal trace electromagnetically coupled to said sensor element; a dielectric means integrally formed substantially above said metal trace, whereby at least a portion of said dielectric means is in direct contact with at least a portion of said metal trace for maintenance of an electric field therethrough. - View Dependent Claims (18, 19, 20, 21, 22, 23)
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Specification