公开(公告)号：US20210336597A1

公开(公告)日：2021-10-28

申请号：US16861087

申请日：2020-04-28

Applicant: Analog Devices, Inc.

Inventor： Fatih Kocer ,  Ekrem Oran ,  Christopher O'Neill ,  Kasey Chatzopoulos

IPC: H03H7/01

Abstract: Customizable tunable filters are provided herein. In certain implementations, a tunable filter including: a first filter bank including a plurality of high-pass filters each having a different cutoff frequency, and a second filter bank including a plurality of low-pass filters each having a different cutoff frequency. The tunable filter further includes a first pair of switches configured to select a first filter chosen from the first filter bank, and a second pair of switches configured to select a second filter chosen from the second filter bank. The tunable filter operates with a first cutoff frequency of the first filter and with a second cutoff frequency of the second filter.

公开(公告)号：US09520356B1

公开(公告)日：2016-12-13

申请号：US14849395

申请日：2015-09-09

Applicant: Analog Devices, Inc.

Inventor： John A. Chiesa ,  Cemin Zhang ,  Byungmoo Min ,  Ekrem Oran ,  John N. Poelker

IPC: H01L23/522 ,  H01L23/552 ,  H01L23/498 ,  H01L23/66 ,  H03L7/24 ,  H01L21/48

CPC classification number: H01L23/5226 ,  H01L23/3121 ,  H01L23/3677 ,  H01L23/49827 ,  H01L23/49838 ,  H01L23/544 ,  H01L23/552 ,  H01L23/66 ,  H01L2223/5442 ,  H01L2223/54426 ,  H01L2223/54486 ,  H01L2223/6683 ,  H01L2224/16145 ,  H01P3/00 ,  H03L7/24

Abstract: A die is packaged by flip-chip mounting the die with the active side facing a low loss substrate. A ground plane is coupled to the active side of the die by vias through the low loss substrate. The ground plane is positioned to concentrate high frequency electromagnetic fields in the low loss substrate. A tuning height can be adjusted to tune the center frequency of a circuit in the die.

Abstract translation: 芯片通过倒装芯片封装，芯片的主动侧面向低损耗基板。 接地平面通过通孔穿过低损耗衬底耦合到管芯的有源侧。 地平面被定位成将高频电磁场集中在低损耗衬底中。 可以调整调谐高度以调整芯片中电路的中心频率。

公开(公告)号：US11356072B2

公开(公告)日：2022-06-07

申请号：US16861087

申请日：2020-04-28

Applicant: Analog Devices, Inc.

Inventor： Fatih Kocer ,  Ekrem Oran ,  Christopher O'Neill ,  Kasey Chatzopoulos

IPC: H03H7/01

Abstract: Customizable tunable filters are provided herein. In certain implementations, a tunable filter including: a first filter bank including a plurality of high-pass filters each having a different cutoff frequency, and a second filter bank including a plurality of low-pass filters each having a different cutoff frequency. The tunable filter further includes a first pair of switches configured to select a first filter chosen from the first filter bank, and a second pair of switches configured to select a second filter chosen from the second filter bank. The tunable filter operates with a first cutoff frequency of the first filter and with a second cutoff frequency of the second filter.

公开(公告)号：US11201602B1

公开(公告)日：2021-12-14

申请号：US16948411

申请日：2020-09-17

Applicant: Analog Devices, Inc.

Inventor： Ekrem Oran ,  Faith Kocer ,  Santosh Kudtarkar ,  John Poelker ,  Po-Hao Yeh ,  Christopher O'Neill ,  Christoph Steinbrecher

IPC: H05K7/00 ,  H03H11/04 ,  H01L25/18 ,  H01L23/66 ,  H01L23/552 ,  H05K1/16 ,  H05K1/14 ,  H05K1/18

Abstract: Apparatus and methods for tunable filtering are provided. In certain embodiments, a tunable filter is implemented using one or more controllable capacitors formed on a semiconductor die and using one or more shielded integrated inductors formed on a secondary circuit board that attaches to a carrier circuit board. Additionally, the shielded integrated inductors are formed from patterned metallization layers of the secondary circuit board, and shielding is provided on the secondary circuit board and/or the carrier circuit board to shield the inductors from the semiconductor die and/or other components.

公开(公告)号：US11201600B1

公开(公告)日：2021-12-14

申请号：US16948887

申请日：2020-10-05

Applicant: Analog Devices, Inc.

Inventor： Christoph M. Steinbrecher ,  Ekrem Oran ,  Xizhen Xu ,  Christopher Mayer

IPC: H03H7/12

Abstract: Apparatus and methods for control and calibration of tunable filters are provided. In certain embodiments, a tunable filter includes at least one controllable component (for instance, a controllable inductor or a controllable capacitor) having a value that changes or adjusts a center frequency of the tunable filter. For example, the controllable component can correspond to a controllable inductor or a controllable capacitor of an inductor-capacitor (LC) resonator of the tunable filter. The tunable filter further includes a control circuit implemented with an approximation function for estimating a value of the controllable component for achieving a desired center frequency indicated by a frequency control signal.