Acoustic-wave device with active calibration mechanism
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United States of America Patent
Stats
-
Jun 18, 2019
Grant Date -
Sep 21, 2017
app pub date -
Mar 13, 2017
filing date -
Mar 15, 2016
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An acoustic-wave device with active calibration mechanism is provided. The acoustic-wave device with active calibration mechanism includes at least one acoustic-wave duplexer, a voltage-controlled oscillator (VCO), a frequency discriminator and a control circuit. The acoustic-wave duplexer includes a TX filter and an RX filter. The voltage-controlled oscillator includes a calibration resonator and a tunable negative impedance circuit. The TX filter, the RX filter and the calibration resonator are disposed on the same piezoelectric substrate. The frequency discriminator generates a calibration signal according to a frequency deviation of the calibration resonator. The control circuit is connected to the acoustic-wave duplexer and the frequency discriminator. The control circuit adjusts an operating frequency of the TX filter or an operating frequency of the RX filter according to the calibration signal.
First Claim
Other Claims data not available
Family
International Classification(s)
- H03L:AUTOMATIC CONTROL, STARTING, SYNCHRONISATION, OR S....
- H01P:WAVEGUIDES; RESONATORS, LINES OR OTHER DEVICES OF ....
- H03B:GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUEN....
- H04B:TRANSMISSION
- H03D:DEMODULATION OR TRANSFERENCE OF MODULATION FROM ON....
- G01S:RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMI....
- H03H:IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONA....
- H03J:TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCU....
- 2017 Application Filing Year
- H03L Class
- 681 Applications Filed
- 583 Patents Issued To-Date
- 85.61 % Issued To-Date
Cited Art Landscape
Patent Citation Ranking
- 0 Citation Count
- H03L Class
- 0 % this patent is cited more than
- 6 Age
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Dec 18, 2026 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Dec 18, 2030 |
