-
公开(公告)号：US09793856B1
公开(公告)日：2017-10-17
申请号：US15097983
申请日：2016-04-13
Applicant: Analog Devices Global
Inventor： Mohamed Moussa Ramadan Esmael , Mohamed Mobarak
CPC classification number: H03D7/1408 , H03D7/1441 , H03D7/1458 , H03D7/1466 , H03D2200/0013 , H03D2200/0023 , H03H7/42
Abstract: Mixers with improved linearity are disclosed. A diode or FET ring mixer is implemented with at least one parallel shunt element coupled with the ring mixer, the shunt element providing shunt to a diode or FET, for example, to reduce the effect of nonlinear or off resistance and/or capacitance. Linearity, isolation, symmetry, even order harmonics of the ring mixer, or any combination thereof can be improved as a result. The linearity of the ring mixer with parallel shunt resistors can be further improved by adding series resistors in the ring according to certain embodiments.
-
Patent Agency Ranking
公开(公告)号：US20190267707A1
公开(公告)日：2019-08-29
申请号：US15904045
申请日：2018-02-23
Applicant: Analog Devices Global Unlimited Company
Inventor： Ahmed I. Khalil , Mohamed Ahmed Youssef Abdalla , Islam A. Eshrah , Mohamed Mobarak
Abstract: Aspects of this disclosure relate to an antenna array system and method of calibration using one or more probes disposed equidistant between antenna elements. In certain embodiments, calibration is performed between a probe and antenna elements, between a plurality of antenna elements, and/or between antenna elements on different antenna arrays.
-
公开(公告)号：US10200009B2
公开(公告)日：2019-02-05
申请号：US15253647
申请日：2016-08-31
Applicant: Analog Devices Global
Inventor： Mohamed A. Abdalla , Mohamed Mobarak , Ahmed Ibrahim Khalil
IPC: H03H7/42 , H03H11/32 , H01F27/40 , H01F21/12 , H01F27/28 , H01L23/522 , H03H7/01 , H03H7/09 , H01P5/10 , H01F17/00
Abstract: A transformer-based balun circuit is disclosed herein. The balun can be implemented using a spiral transformer, where primary and secondary transformer windings can be inductively coupled and can be implemented on the same metal layer (or different metal layers, e.g. vertically adjacent metal layers). The balun can further include a compensation capacitor and a digital frequency tuning circuit. The compensation capacitor can be introduced at one of the differential terminals to reduce or suppress the amplitude and phase imbalance. The digital frequency tuning circuit can be a switchable bank of capacitors, which allows for tuning the frequency of operation of the transformer-based balun.
-
公开(公告)号：US20180062607A1
公开(公告)日：2018-03-01
申请号：US15253647
申请日：2016-08-31
Applicant: Analog Devices Global
Inventor： Mohamed A. Abdalla , Mohamed Mobarak , Ahmed Ibrahim Khalil
CPC classification number: H03H7/42 , H01F21/12 , H01F27/2804 , H01F27/40 , H01F2017/0026 , H01F2021/125 , H01L23/5223 , H03H7/0153 , H03H7/09 , H03H7/422 , H03H11/32 , H03H2210/025
Abstract: A transformer-based balun circuit s disclosed herein. The balun can be implemented using a spiral transformer, where primary and secondary transformer windings can be inductively coupled and can be implemented on the same metal layer (or different metal layers, e.g. vertically adjacent metal layers). The balun can further include a compensation capacitor and a digital frequency tuning circuit. The compensation capacitor can be introduced at one of the differential terminals to reduce or suppress the amplitude and phase imbalance. The digital frequency tuning circuit can be a switchable bank of capacitors, which allows for tuning the frequency of operation of the transformer-based balun.
-
公开(公告)号：US11177567B2
公开(公告)日：2021-11-16
申请号：US15904045
申请日：2018-02-23
Applicant: Analog Devices Global Unlimited Company
Inventor： Ahmed I. Khalil , Mohamed Ahmed Youssef Abdalla , Islam A. Eshrah , Mohamed Mobarak
IPC: H01Q3/26 , H04B17/12 , H04B17/19 , H01Q1/24 , H01Q3/38 , H01Q21/22 , H01Q21/00 , H04B17/21 , H04B17/14
Abstract: Aspects of this disclosure relate to an antenna array system and method of calibration using one or more probes disposed equidistant between antenna elements. In certain embodiments, calibration is performed between a probe and antenna elements, between a plurality of antenna elements, and/or between antenna elements on different antenna arrays.
-
公开(公告)号：US20170302226A1
公开(公告)日：2017-10-19
申请号：US15097983
申请日：2016-04-13
Applicant: Analog Devices Global
Inventor： Mohamed Moussa Ramadan Esmael , Mohamed Mobarak
CPC classification number: H03D7/1408 , H03D7/1441 , H03D7/1458 , H03D7/1466 , H03D2200/0013 , H03D2200/0023 , H03H7/42
Abstract: Mixers with improved linearity are disclosed. A diode or FET ring mixer is implemented with at least one parallel shunt element coupled with the ring mixer, the shunt element providing shunt to a diode or FET, for example, to reduce the effect of nonlinear or off resistance and/or capacitance. Linearity, isolation, symmetry, even order harmonics of the ring mixer, or any combination thereof can be improved as a result. The linearity of the ring mixer with parallel shunt resistors can be further improved by adding series resistors in the ring according to certain embodiments.
-
-
-
-
-
Search Results
6
records
(took 0.015 seconds)
