Tunable guard ring for improved circuit isolation
First Claim
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1. An apparatus comprising:
- a closed loop guard ring formed on an integrated circuit and magnetically coupled by a selected coupling factor to a first inductor formed on the integrated circuit; and
a tunable capacitor forming a portion of the closed loop guard ring and configured to reduce magnetic field coupling from the first inductor to a second inductor.
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Abstract
A tunable guard ring for improved circuit isolation is disclosed. In an exemplary embodiment, an apparatus includes a closed loop guard ring formed on an integrated circuit and magnetically coupled by a selected coupling factor to a first inductor formed on the integrated circuit. The apparatus also includes a tunable capacitor forming a portion of the closed loop guard ring and configured to reduce magnetic field coupling from the first inductor to a second inductor.
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Citations
20 Claims
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1. An apparatus comprising:
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a closed loop guard ring formed on an integrated circuit and magnetically coupled by a selected coupling factor to a first inductor formed on the integrated circuit; and a tunable capacitor forming a portion of the closed loop guard ring and configured to reduce magnetic field coupling from the first inductor to a second inductor. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An apparatus comprising:
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means for magnetically coupling a closed loop guard ring to a first inductance by a selected coupling factor, the closed loop guard ring and the first inductance formed on an integrated circuit; and means for providing a tunable capacitance forming a portion of the closed loop guard ring and configured to reduce magnetic field coupling from the first inductance to a second inductance. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification