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：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.