公开(公告)号：US20170272056A1

公开(公告)日：2017-09-21

申请号：US15456665

申请日：2017-03-13

Applicant: Airoha Technology Corp.

Inventor： Heng-Chih Lin ,  Chin-Lung Yang

IPC: H03H9/72 ,  H03L7/099 ,  H03L7/093 ,  H03H9/64 ,  H03B5/32

CPC classification number: H01P7/088 ,  H03B5/326 ,  H03H9/64 ,  H03H9/6403 ,  H03H9/6483 ,  H03H9/725 ,  H03H2210/012 ,  H03H2210/04 ,  H03J3/00 ,  H03L7/093 ,  H03L7/099

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.

公开(公告)号：US10110201B2

公开(公告)日：2018-10-23

申请号：US15137111

申请日：2016-04-25

Applicant: AIROHA TECHNOLOGY CORP.

Inventor： Chin-Lung Yang

IPC: H03H9/64 ,  H03H9/02 ,  H03H9/00

Abstract: The present invention relates to a surface acoustic wave filter device with floating units. The surface acoustic wave filter device comprises a piezoelectric substrate, at least one interdigitated transducer configuration and at least one floating unit. The interdigitated transducer configuration comprises a plurality of interdigitated transducer units disposed on the piezoelectric substrate. The floating unit is disposed between adjacent interdigitated transducer units, and covers partial region of adjacent interdigitated transducer units to reduce the BAW scattering of the surface acoustic wave filter device, and can be used to improve the amplitude and phase balances of the surface acoustic wave filter devices.

公开(公告)号：US20170271743A1

公开(公告)日：2017-09-21

申请号：US15456680

申请日：2017-03-13

Applicant: Airoha Technology Corp.

Inventor： Heng-Chih Lin ,  Chin-Lung Yang

IPC: H03H9/72

CPC classification number: H01P7/088 ,  H03B5/326 ,  H03H9/64 ,  H03H9/6403 ,  H03H9/6483 ,  H03H9/725 ,  H03H2210/012 ,  H03H2210/04 ,  H03J3/00 ,  H03L7/093 ,  H03L7/099

Abstract: An acoustic-wave device with active calibration mechanism is provided. The acoustic-wave device with active calibration mechanism includes at least one adjustable acoustic-wave duplexer, a frequency discriminator and a control circuit. The adjustable acoustic-wave duplexer has a first terminal point, a second terminal point and a third terminal point. The adjustable acoustic-wave duplexer includes a TX filter, an RX filter, a first loop switch and a second loop switch. The first loop switch is used for conducting a first loop. The second loop switch is used for conducting a second loop. The control circuit adjusts the operating frequency of the TX filter according to a first loop calibration signal. The control circuit adjusts the operating frequency of the operating frequency of the RX filter according to the second loop calibration signal.

公开(公告)号：US10326192B2

公开(公告)日：2019-06-18

申请号：US15456665

申请日：2017-03-13

Applicant: Airoha Technology Corp.

Inventor： Heng-Chih Lin ,  Chin-Lung Yang

IPC: H04B1/44 ,  H03D1/22 ,  G01S19/23 ,  H01P7/08 ,  H03H9/72 ,  H03B5/32 ,  H03H9/64 ,  H03L7/093 ,  H03L7/099 ,  H03J3/00

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.

公开(公告)号：US10033085B2

公开(公告)日：2018-07-24

申请号：US15456680

申请日：2017-03-13

Applicant: Airoha Technology Corp.

Inventor： Heng-Chih Lin ,  Chin-Lung Yang

IPC: H03H9/72 ,  H03L7/04 ,  H03D3/08 ,  H04B1/44 ,  H01P7/08 ,  H03B5/32 ,  H03H9/64 ,  H03L7/093 ,  H03L7/099 ,  H03J3/00

Abstract: An acoustic-wave device with active calibration mechanism is provided. The acoustic-wave device with active calibration mechanism includes at least one adjustable acoustic-wave duplexer, a frequency discriminator and a control circuit. The adjustable acoustic-wave duplexer has a first terminal point, a second terminal point and a third terminal point. The adjustable acoustic-wave duplexer includes a TX filter, an RX filter, a first loop switch and a second loop switch. The first loop switch is used for conducting a first loop. The second loop switch is used for conducting a second loop. The control circuit adjusts the operating frequency of the TX filter according to a first loop calibration signal. The control circuit adjusts the operating frequency of the operating frequency of the RX filter according to the second loop calibration signal.