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US 12,237,822 B2Granted
Method, system, and apparatus for resonator circuits and modulating resonators
AssigneepSemi Corporation
InventorsMark L. Burgener, James S. Cable
Life of this patent
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Abstract
Embodiments of resonator circuits and modulating resonators and are described generally herein. One or more acoustic wave resonators may be coupled in series or parallel to generate tunable filters. One or more acoustic wave resonances may be modulated by one or more capacitors or tunable capacitors. One or more acoustic wave modules may also be switchable in a filter. Other embodiments may be described and claimed.
Claims13
A tunable resonator comprising:
- a first resonator module including a first resonator arranged in series with a first switch;
- a second resonator module including a second resonator arranged in series with a second switch;
- and
- a first variable capacitor coupled across the first and the second resonator module, wherein:
- a) a passband of the tunable resonator is
- i) a function of a fixed resonant frequency of each of the first and the second resonator modules;
- and
- ii) to be modulated by opening or closing the first switch or the second switch,
- b) a stopband of the tunable resonator is to be modulated by the first variable capacitor.
6 more elements
A method of tuning a tunable resonator, the tunable resonator comprising:
- a first resonator module including a switchable first resonator;
- a second resonator module including a switchable second resonator;
- and
- a variable capacitor coupled across the first and the second resonator modules, the method comprising:
- centering a passband of the tunable resonator as a function of a fixed resonant frequency of each of the first and the second resonator modules;
- modulating the passband by switching in or out the first resonator or the second resonator, and
- modulating a stopband of the tunable resonator by varying the variable capacitor.
4 more elements
Dependencies are inferred from the claim text.