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US 8,797,107 B2Granted
Voltage controlled oscillator
AssigneesElectronics and Telecommunications Research Institute, Soongsil University-Industry Cooperation Foundation
InventorsDong-Uk Sim, Young Jun Chong, Yong Moon, Hyeon Seok Jang
Life of this patent
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Abstract
A voltage controlled oscillator includes a split ring resonator (SRR) configured to have meta-material characteristics fabricated on a board, and an energy compensation circuit configured to cause resonant oscillation of the SRR. The energy compensation circuit is fabricated in the form of an integrated circuit.
Claims14
A voltage controlled oscillator, comprising:
- multiple split ring resonators (SRRs) configured to have meta-material characteristics fabricated on a board, the SRRs operating at different frequencies;
- an energy compensation circuit configured to cause resonant oscillation of the SRRs, the energy compensation circuit being fabricated in the form of an integrated circuit;
- and
- multiple switches configured to perform a switching operation to allow any one of the SRRs to make resonant oscillation by the energy compensation integrated circuit wherein the multiple switches comprise:
- a first switch configured to perform a switching operation between the energy compensation integrated circuit and the first SRR,
- a second switch configured to perform a switching operation between the energy compensation integrated circuit and the second SRR, and
- an inverter connected to the first switch and the second switch such that the inverter is configured to provide one of low and high signals to the first switch and the other of the low and high signals to the second switch so that the first switch and the second switch are selectively operated.
4 more elements
A voltage controlled oscillator comprising:
- multiple split ring resonators (SRRs);
- an energy compensation circuit configured to drive resonant oscillation of the SRRs;
- and
- multiple switches configured to perform switching operations that selectively allow any one of the SRRs to make resonant oscillation driven by the energy compensation integrated circuit, wherein the multiple switches comprise:
- a first switch configured to perform a first switching operation between the energy compensation integrated circuit and the first SRR,
- a second switch configured to perform a second switching operation between the energy compensation integrated circuit and the second SRR, and
- an inverter configured to selectively operate the first and second switches.
4 more elements
Dependencies are inferred from the claim text.