- 专利标题: Selective amplification of frequency multiplexed microwave signals using cascading multi-path interferometric Josephson directional amplifiers with nonoverlapping bandwidths
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申请号: US15829215申请日: 2017-12-01
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公开(公告)号: US10396731B2公开(公告)日: 2019-08-27
- 发明人: Baleegh Abdo
- 申请人: International Business Machines Corporation
- 申请人地址: US NY Armonk
- 专利权人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人地址: US NY Armonk
- 代理机构: Garg Law Firm, PLLC
- 代理商 Rakesh Garg; Grant Johnson
- 主分类号: H03F7/00
- IPC分类号: H03F7/00 ; H01L39/02 ; H03F19/00 ; H01L39/24
摘要:
A cascading selective microwave directional amplifier (cascade) includes a set of Josephson devices, each Josephson device in the set having a corresponding operating bandwidth of microwave frequencies. Different operating bandwidths have different corresponding center frequencies. A series coupling is formed between first Josephson device from the set and an nth Josephson device from the set. The series coupling causes the first Josephson device to amplify a signal of a first frequency from a frequency multiplexed microwave signal (multiplexed signal) in a first signal flow direction through the series coupling and the nth Josephson device to amplify a signal of an nth frequency in a second signal flow direction through the series, where the second signal flow direction is opposite of the first signal flow direction.