Integrated resonance circuit
An integrated resonance circuit is provided for providing a high-frequency output signal, comprising a first output for providing a first high-frequency output signal with a first frequency and a first amplitude, a first inductive unit connected to the first output, and a first capacitive unit connected to the first output. According to the invention, a second output for providing a second high-frequency output signal with a second frequency and a second amplitude is provided, whereby the second frequency matches the first frequency and the second amplitude differs from the first amplitude, and a second inductive unit, connected to the first output and to the second output, and a second capacitive unit, connected to the second output, are provided. The invention relates furthermore to a voltage-controlled oscillator and to an integrated circuit.
1. An integrated resonance circuit for providing a high-frequency output signal, the integrated resonance circuit comprising:
a first output for providing a first high-frequency output signal with a first frequency and a first amplitude;
a first inductive unit connected to the first output;
a first capacitive unit connected to the first output;
a second output for providing a second high-frequency output signal with a second frequency and a second amplitude, wherein the second frequency matches the first frequency and the second amplitude differs from the first amplitude;
a second inductive unit connected to the first output and to the second output; and
a second capacitive unit connected to the second output wherein the first and second outputs are provided to an external circuit.
2. The resonance circuit according to claim 1 , wherein a series connection of the second inductive unit and the second capacitive unit is connected parallel to the first capacitive unit.
3. The resonance circuit according to claim 1 , wherein the second inductive unit has two inductive subelements, each of which is connected to the first output and to the second output.
4. The resonance circuit according to claim 1 , wherein the second amplitude is greater than the first amplitude.
5. The resonance circuit according to claim 1 , further comprising:
a third output for providing a third high-frequency output signal with a third frequency and a third amplitude, wherein the third frequency matches the first frequency and the third amplitude differs from the first amplitude and the second amplitude;
a third inductive unit connected to the second output and to the third output; and
a third capacitive unit connected to the third output.
6. The resonance circuit according to claim 5 , wherein a series connection of the third inductive unit and the third capacitive unit is connected parallel to the second capacitive unit.
7. The resonance circuit according to claim 5 , wherein the third inductive unit has two inductive subelements, each of which is connected to the second output and to the third output.
8. The resonance circuit according to claim 5 , wherein the third amplitude is greater than the second amplitude.
9. The resonance circuit according to claim 1 wherein at least one of the inductive units has at least one conductor loop.
10. The resonance circuit according to claim 1 , wherein at least one of the inductive units has at least one bond wire, a solder ball, or a flip-chip junction.
11. The resonance circuit according to any claim 1 , wherein at least one of the capacitive units has a settable capacitance value and the resonance circuit is designed to set the settable capacitance value as a function of at least one control signal.
12. The resonance circuit according to claim 1 , wherein at least one of the capacitive units has at least a metal-insulator-metal capacitor, a varactor, a switched MIM capacitor, or a switched capacitor bank.
13. The resonance circuit according to claim 1 , wherein at least one of the capacitive units is a parasitic capacitor.
14. The resonance circuit according to claim 1 , wherein the first inductive unit is designed as a conductor loop with one or more turns.
15. A voltage-controlled oscillator comprising at least one resonance circuit according to claim 1 .
16. An integrated circuit having at least one resonance circuit according to claim 1 .
17. The integrated circuit according to claim 16 , wherein the integrated circuit is designed as a monolithically integrated circuit, as a hybrid circuit, or as a multilayer-ceramic circuit.
18. The resonance circuit according to claim 1 , wherein the first and second outputs are directly connected to the external circuit.
19. An integrated resonance circuit for providing a high-frequency output signal, the integrated resonance circuit comprising:
a first output for providing a first high-frequency output signal with a first frequency and a first amplitude;
a first inductive unit connected to the first output;
a first capacitive unit connected to the first output;
a second output for providing a second high-frequency output signal with a second frequency and a second amplitude, wherein the second frequency matches the first frequency and the second amplitude differs from the first amplitude;
a second inductive unit connected to the first output and to the second output; and
a second capacitive unit connected to the second output, wherein the first and second outputs are provided to output buffers.