Compact omnidirectional RF system
First Claim
Patent Images
1. A radio frequency (RF) system having omnidirectional functionality, comprising:
- a supporting substrate;
a circuit coupled to the substrate; and
an antenna coupled to the circuit, the antenna having multiple lobes, wherein responses from the lobes are demodulated and combined at baseband.
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Abstract
A radio frequency (RF) system having omnidirectional functionality, such that the antenna is functional in a generally isotropic manner. The system in one embodiment includes a supporting substrate, a circuit coupled to the substrate, and an antenna coupled to the circuit, the antenna having multiple lobes, wherein responses from the lobes are demodulated and combined at baseband. The circuit can be positioned over a physical area of a portion of the antenna, the antenna acting as a virtual ground plane for the circuit.
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Citations
50 Claims
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1. A radio frequency (RF) system having omnidirectional functionality, comprising:
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a supporting substrate;
a circuit coupled to the substrate; and
an antenna coupled to the circuit, the antenna having multiple lobes, wherein responses from the lobes are demodulated and combined at baseband. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A radio frequency (RF) system having omnidirectional functionality, comprising:
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a supporting substrate;
a circuit coupled to the substrate; and
an antenna on the substrate and coupled to the circuit, the antenna having multiple lobes each extending from a common connecting region of the substrate and being oriented generally perpendicular to each other, wherein each lobe is positioned on a different plane of the substrate, wherein responses from the lobes are demodulated and combined at baseband. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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28. A radio frequency (RF) system having omnidirectional functionality, comprising:
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a supporting substrate;
a circuit coupled to the substrate; and
an antenna on the substrate and coupled to the circuit, the antenna having multiple lobes, wherein responses from the lobes are demodulated and combined at baseband, wherein the circuit is physically positioned over at least one of the lobes, the at least one of the lobes acting as a virtual ground plane for the circuit.
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29. A radio frequency (RF) system, comprising:
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a supporting substrate;
an antenna coupled to the substrate; and
a circuit coupled to the substrate, the circuit being integrated with at least a portion of the antenna. - View Dependent Claims (30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46)
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47. A radio frequency (RF) system, comprising:
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an antenna; and
a circuit operatively coupled to the antenna, the circuit being positioned over a portion of the physical area of the antenna and using the antenna as a virtual ground plane of the circuit, wherein the antenna is designed such that a potential of the antenna varies only slightly thereacross.
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48. A radio frequency (RF) system, comprising:
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an antenna having multiple lobes; and
a circuit operatively coupled to the antenna, the circuit being positioned over at least a portion of the physical area of the antenna and using the antenna as a virtual ground plane of the circuit, wherein the circuit further comprises;
circuitry for converting RF signals from the lobes of the antenna to baseband signals;
circuitry for summing the baseband signals from the lobes of an antenna. - View Dependent Claims (49, 50)
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Specification