公开(公告)号：US10833781B2

公开(公告)日：2020-11-10

申请号：US16686754

申请日：2019-11-18

Applicant: International Business Machines Corporation

Inventor： Alberto Valdes Garcia ,  Bodhisatwa Sadhu ,  Yahya Mesgarpour Tousi

IPC: H04B7/10 ,  H01Q3/26 ,  H04B17/12 ,  H04B17/10

Abstract: An array of antenna elements are located in relation with a plurality of pre-characterized reference detectors. At baseband frequencies, a transmit radiation pattern of the array of antenna elements is sensed with the plurality of pre-characterized reference detectors, at a plurality of phase and gain settings, to detect mismatch among two or more elements of the array of antenna elements. Phase and gain settings for the array of antenna elements are updated to correct the mismatch.

公开(公告)号：US10693429B2

公开(公告)日：2020-06-23

申请号：US16354850

申请日：2019-03-15

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： John F. Bulzacchelli ,  Bodhisatwa Sadhu ,  Alberto Valdes Garcia

IPC: H01Q3/36 ,  H03G3/30 ,  H01Q21/22 ,  H01Q3/28 ,  H03F3/19 ,  H03F3/45 ,  H04B1/48 ,  H01Q1/52 ,  H03F3/195 ,  H04B7/06

Abstract: Methods and systems for phased array tapering include setting a gain at a phase-invariant variable gain amplifier in each of a set of front-ends of a phased array transceiver, to perform tapering of beam pattern side lobes. Setting the gain includes setting a first gain at a first stage of the phase-invariant variable gain amplifier and setting a second gain at a second stage of the phase-invariant variable gain amplifier. A dependency of a phase shift of the first stage on the gain of the first stage is equal to and opposite a dependency of a phase shift of the second stage on the gain of the second stage.

公开(公告)号：US10608335B2

公开(公告)日：2020-03-31

申请号：US15820476

申请日：2017-11-22

Applicant: International Business Machines Corporation

Inventor： Alberto Valdes Garcia ,  Wayne H. Woods, Jr. ,  Bodhisatwa Sadhu

IPC: H01Q3/24 ,  H01Q3/34 ,  H01P1/18 ,  H01Q3/36 ,  H01P5/04 ,  H01Q21/24 ,  H04B1/00 ,  H04B1/48 ,  H01Q25/00 ,  H04B1/44 ,  H03H11/24 ,  H03H7/18

Abstract: An apparatus includes first and second electronically tunable transmission lines configured to receive a signal pair and provide a selected phase delay difference to the signal pair, a first shunting element connected to the first electronically tunable transmission line and a second shunting element connected to the second electronically tunable transmission line. The first and second shunting elements may each be configured to selectively shunt the electronically tunable transmission line to which they are connected according to one or more shunting control signals. A corresponding method is also disclosed herein.

公开(公告)号：US20190356375A1

公开(公告)日：2019-11-21

申请号：US16530915

申请日：2019-08-02

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION ,  Ericsson AB

Inventor： Daniel J. Friedman ,  Joakim Hallin ,  Yahya Mesgarpour Tousi ,  Orjan Renstrom ,  Leonard Rexberg ,  Scott K. Reynolds ,  Bodhisatwa Sadhu ,  Stefan Sahl ,  Jan-Erik Thillberg ,  Alberto Valdes Garcia

IPC: H04B7/06 ,  H04L5/14 ,  H01Q3/24 ,  H04W52/42 ,  H04B7/0408 ,  H01Q21/29

Abstract: A method and system of a configurable phased array transceiver are provided. A first beamforming unit is configured to provide a first beam. A second beamforming unit is configured to provide a second beam. A first bi-directional power controller is configured to combine or to split the first beam and the second beam. Each beamforming unit comprises a plurality of radio frequency (RF) front-ends, each front-end being configured to transmit and receive RF signals. Each beam is independently configurable to operate in a transmit (TX) or a receive (RX) mode.

公开(公告)号：US20190319338A1

公开(公告)日：2019-10-17

申请号：US15953075

申请日：2018-04-13

Applicant: International Business Machines Corporation

Inventor： Xiaoxiong Gu ,  Duixian Liu ,  Christian W. Baks ,  Alberto Valdes Garcia

IPC: H01Q1/22 ,  H01Q21/06 ,  H01L21/66 ,  H01L23/367 ,  H01L23/538 ,  H01L23/66 ,  H01L23/00 ,  H01L21/48 ,  H01Q21/00

Abstract: An apparatus includes an antenna array package cover comprising a radiating surface, a mating surface disposed opposite the radiating surface, and an array of antenna array sub-patterns wherein each antenna array sub-pattern comprises at least one antenna element. The antenna array package also includes an array of sub-pattern interface packages mated to the mating surface of the antenna array package cover. Each sub-pattern interface package of the array of sub-pattern interface packages comprises a package carrier, a sub-pattern integrated circuit electrically and mechanically coupled to the package carrier, and a set of interface lines corresponding to the antenna elements of the antenna array sub-pattern that corresponds to the sub-pattern interface package. Methods for mounting the above apparatus into a host circuit are also disclosed herein.

公开(公告)号：US20190214955A1

公开(公告)日：2019-07-11

申请号：US16354850

申请日：2019-03-15

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： John F. Bulzacchelli ,  Bodhisatwa Sadhu ,  Alberto Valdes Garcia

IPC: H03G3/30 ,  H01Q3/28 ,  H01Q3/36 ,  H01Q1/52 ,  H03F3/19 ,  H01Q21/22 ,  H03F3/195 ,  H03F3/45 ,  H04B1/48

CPC classification number: H03G3/3036 ,  H01Q1/523 ,  H01Q1/525 ,  H01Q3/28 ,  H01Q3/36 ,  H01Q21/22 ,  H03F3/19 ,  H03F3/195 ,  H03F3/45085 ,  H03F2200/294 ,  H03F2200/451 ,  H04B1/48 ,  H04B7/0617

Abstract: Methods and systems for phased array tapering include setting a gain at a phase-invariant variable gain amplifier in each of a set of front-ends of a phased array transceiver, to perform tapering of beam pattern side lobes. Setting the gain includes setting a first gain at a first stage of the phase-invariant variable gain amplifier and setting a second gain at a second stage of the phase-invariant variable gain amplifier. A dependency of a phase shift of the first stage on the gain of the first stage is equal to and opposite a dependency of a phase shift of the second stage on the gain of the second stage.

公开(公告)号：US20190158068A1

公开(公告)日：2019-05-23

申请号：US15820480

申请日：2017-11-22

Applicant: International Business Machines Corporation

Inventor： Alberto Valdes Garcia ,  Wayne H. Woods, JR. ,  Bodhisatwa Sadhu

IPC: H03H11/24 ,  H03H11/20 ,  H01Q3/36 ,  H01Q15/24

Abstract: An apparatus includes first and second electronically tunable transmission lines configured to transmit or receive a signal pair and provide a selected phase delay difference to the signal pair corresponding to a selected polarization, a first attenuation element connected to the first electronically tunable transmission line and a second attenuation element connected to the second electronically tunable transmission line. The first and second attenuation elements may each be configured to selectively attenuate signals carried on the electronically tunable transmission line to which they are connected according to a selected attenuation setting of a plurality of selectable attenuation settings provided by one or more attenuation control signals and thereby provide a selected attenuation to the signal pair that corresponds to the selected polarization. A corresponding method is also disclosed herein.

公开(公告)号：US20190157754A1

公开(公告)日：2019-05-23

申请号：US15820476

申请日：2017-11-22

Applicant: International Business Machines Corporation

Inventor： Alberto Valdes Garcia ,  Wayne H. Woods, JR. ,  Bodhisatwa Sadhu

IPC: H01Q3/24 ,  H01Q3/34

Abstract: An apparatus includes first and second electronically tunable transmission lines configured to receive a signal pair and provide a selected phase delay difference to the signal pair, a first shunting element connected to the first electronically tunable transmission line and a second shunting element connected to the second electronically tunable transmission line. The first and second shunting elements may each be configured to selectively shunt the electronically tunable transmission line to which they are connected according to one or more shunting control signals. A corresponding method is also disclosed herein.

公开(公告)号：US10298190B2

公开(公告)日：2019-05-21

申请号：US15278434

申请日：2016-09-28

Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION

Inventor： John F. Bulzacchelli ,  Bodhisatwa Sadhu ,  Alberto Valdes Garcia

IPC: H03G3/30 ,  H01Q21/22 ,  H01Q3/28 ,  H01Q3/36 ,  H03F3/19 ,  H03F3/45 ,  H04B1/48 ,  H01Q1/52 ,  H03F3/195 ,  H04B7/06

Abstract: A method for phased array tapering includes setting a gain at a phase-invariant variable gain amplifier in each of a plurality of front-ends of a phased array transceiver to perform tapering of beam pattern side lobes. A resistance in the phase-invariant variable gain amplifier is set to provide a phase shift that is independent of gain.

公开(公告)号：US20190052493A1

公开(公告)日：2019-02-14

申请号：US15996611

申请日：2018-06-04

Applicant: International Business Machines Corporation

Inventor： Alberto Valdes Garcia ,  Wayne H. Woods, JR. ,  Bodhisatwa Sadhu

IPC: H04L27/22

Abstract: An apparatus for decoding a data modulated signal includes a signal receiver that receives a data modulated signal that is encoded with phase-shift keying (PSK) and provides an amplified signal corresponding to the data modulated signal, a tunable phase shifter that receives a local reference signal and a selected phase shift, applies the selected phase shift to the local reference signal to produce a phase shifted reference signal, a summing unit that sums the amplified signal and the phase shifted reference signal to produce a summed signal, an amplitude detector that determines an amplitude of the summed signal, and a symbol detector that varies the selected phase shift and determines a current symbol within the data modulated signal based on the amplitude of the summed signal as the selected phase shift is varied. A corresponding method is also disclosed herein.