公开(公告)号：US20180269833A1

公开(公告)日：2018-09-20

申请号：US15461203

申请日：2017-03-16

Applicant: Infineon Technologies AG

Inventor： Vadim Issakov ,  Fabio Padovan

IPC: H03B5/12

CPC classification number: H03B5/1231 ,  H03B5/1243 ,  H03B5/1293 ,  H03B5/1296 ,  H03B2200/0008 ,  H03B2200/004 ,  H03B2200/009

Abstract: In accordance with an embodiment, a method of operating a voltage controlled oscillator (VCO) includes generating a first oscillating signal in a first VCO core and generating a second oscillating signal in a second VCO core, such that the first oscillating signal and the second oscillating signal have a same frequency and a fixed phase offset. The VCO includes the first VCO core and the second VCO core, and each VCO core includes a pair of transistors. The VCO also includes a transformer having a first winding coupled between control nodes of the pair of transistors of the first VCO core and a second winding coupled between control nodes of the pair of transistors of the second VCO core.

公开(公告)号：US20180054200A1

公开(公告)日：2018-02-22

申请号：US15679869

申请日：2017-08-17

Applicant: Infineon Technologies AG

Inventor： Johann Peter Forstner ,  Vadim Issakov ,  Saverio Trotta

IPC: H03K19/0185 ,  H03F3/45 ,  H03F3/30

CPC classification number: H03F3/45085 ,  H03F1/0205 ,  H03F2200/513 ,  H03K3/012 ,  H03K3/2885 ,  H03K21/023

Abstract: In accordance with an embodiment, a method includes receiving a first differential logic signal using a first branch of a circuit that extends from a voltage supply of the circuit as far as an earth terminal of the circuit and has at least one first differential transistor pair, receiving a second differential logic signal using a second branch of the circuit that extends from the voltage supply to the earth terminal and has at least one second differential transistor pair, conducting a current flow between the first branch and the second branch, and outputting an output signal by the second branch.

公开(公告)号：US10158434B2

公开(公告)日：2018-12-18

申请号：US15333077

申请日：2016-10-24

Applicant: Infineon Technologies AG

Inventor： Saverio Trotta ,  Reinhard Wolfgang Jungmaier ,  Dennis Noppeney ,  Johann Peter Forstner ,  Ismail Nasr ,  Vadim Issakov ,  Andreas Wickmann

IPC: H04B17/00 ,  H04B17/14 ,  H04B17/21 ,  H04B1/38

Abstract: In accordance with an embodiment, a method for operating a radio frequency (RF) transceiver includes frequency-translating, using a local oscillator signal having a calibrated phase shift, a signal received at an antenna of an RF transceiver; filtering the frequency-translated signal using a programmable filter of the RF transceiver to produce a filtered frequency-translated signal; and changing a cutoff frequency of the programmable filter from a first cutoff frequency to a second cutoff frequency in response to the RF transceiver switching operation from a first mode to a second mode.

公开(公告)号：US20180013188A1

公开(公告)日：2018-01-11

申请号：US15599185

申请日：2017-05-18

Applicant: Infineon Technologies AG

Inventor： Johann Peter Forstner ,  Vadim Issakov ,  Saverio Trotta

IPC: H01P5/18 ,  H03F3/195 ,  H03F1/56 ,  H03F1/02 ,  H01L23/64 ,  H03H7/24 ,  H01F38/14

CPC classification number: H01P5/18 ,  H01F38/14 ,  H01L23/645 ,  H03F1/0261 ,  H03F1/56 ,  H03F3/195 ,  H03H7/09 ,  H03H7/24 ,  H03H7/46

Abstract: Coupling apparatuses, circuits having such coupling apparatuses and corresponding methods are provided that involve a first and a second signal being coupled out from an out-coupling circuit part and being separately coupled into first and second circuit pmts. The use of different coupling mechanisms effects signal separation in this case. In particular, one of the signals can be coupled as a differential signal and the other as a common mode signal.

公开(公告)号：US10367452B2

公开(公告)日：2019-07-30

申请号：US15461203

申请日：2017-03-16

Applicant: Infineon Technologies AG

Inventor： Vadim Issakov ,  Fabio Padovan

IPC: H03B5/12

Abstract: In accordance with an embodiment, a method of operating a voltage controlled oscillator (VCO) includes generating a first oscillating signal in a first VCO core and generating a second oscillating signal in a second VCO core, such that the first oscillating signal and the second oscillating signal have a same frequency and a fixed phase offset. The VCO includes the first VCO core and the second VCO core, and each VCO core includes a pair of transistors. The VCO also includes a transformer having a first winding coupled between control nodes of the pair of transistors of the first VCO core and a second winding coupled between control nodes of the pair of transistors of the second VCO core.

公开(公告)号：US10224885B2

公开(公告)日：2019-03-05

申请号：US15679869

申请日：2017-08-17

Applicant: Infineon Technologies AG

Inventor： Johann Peter Forstner ,  Vadim Issakov ,  Saverio Trotta

IPC: H03F3/45 ,  H03K3/2885 ,  H03K21/02 ,  H03K3/012 ,  H03F1/02

Abstract: In accordance with an embodiment, a method includes receiving a first differential logic signal using a first branch of a circuit that extends from a voltage supply of the circuit as far as an earth terminal of the circuit and has at least one first differential transistor pair, receiving a second differential logic signal using a second branch of the circuit that extends from the voltage supply to the earth terminal and has at least one second differential transistor pair, conducting a current flow between the first branch and the second branch, and outputting an output signal by the second branch.

公开(公告)号：US20180115371A1

公开(公告)日：2018-04-26

申请号：US15333077

申请日：2016-10-24

Applicant: Infineon Technologies AG

Inventor： Saverio Trotta ,  Reinhard Wolfgang Jungmaier ,  Dennis Noppeney ,  Johann Peter Forstner ,  Ismail Nasr ,  Vadim Issakov ,  Andreas Wickmann

IPC: H04B17/14 ,  H04B1/38 ,  H04B17/21

CPC classification number: H04B17/14 ,  H04B1/38 ,  H04B17/21

Abstract: In accordance with an embodiment, a method for operating a radio frequency (RF) transceiver includes frequency-translating, using a local oscillator signal having a calibrated phase shift, a signal received at an antenna of an RF transceiver; filtering the frequency-translated signal using a programmable filter of the RF transceiver to produce a filtered frequency-translated signal; and changing a cutoff frequency of the programmable filter from a first cutoff frequency to a second cutoff frequency in response to the RF transceiver switching operation from a first mode to a second mode.

公开(公告)号：US20180006352A1

公开(公告)日：2018-01-04

申请号：US15637224

申请日：2017-06-29

Applicant: Infineon Technologies AG

Inventor： Vadim Issakov ,  Johann Peter Forstner

IPC: H01P5/18 ,  H03F3/195 ,  H01P5/16 ,  H01L23/64 ,  H01F27/28 ,  H03H11/16 ,  G01R33/36

CPC classification number: H01P5/18 ,  G01R33/365 ,  H01F27/28 ,  H01F27/2804 ,  H01F27/29 ,  H01F2027/2809 ,  H01L23/645 ,  H01P5/16 ,  H03F3/195 ,  H03H7/21 ,  H03H11/16

Abstract: In accordance with an embodiment, a differential directional coupler includes a first coupler having a first transformer comprising a first input coil and a first output coil, and a second coupler having a second transformer comprising a second input coil and a second output coil. The first input coil and the second input coil each include an input port, the first transformer at least partially covers the second transformer in a top view from a vertical direction onto the differential directional coupler, and the first input coil and the second input coil are configured to be mirror symmetric with respect to one another in the top view with respect to their input ports.

公开(公告)号：US20190158022A1

公开(公告)日：2019-05-23

申请号：US15820029

申请日：2017-11-21

Applicant: Infineon Technologies AG

Inventor： Vadim Issakov ,  Fabio Padovan ,  Dmytro Cherniak

IPC: H03B5/12

Abstract: In accordance with an embodiment, a method of operating a voltage controlled oscillator (VCO) that having a VCO core coupled to a filtered current source includes setting an oscillation frequency of the VCO core based on a tuning signal received at a tuning signal input; and setting a resonant frequency of the filtered current source based on the received tuning signal using a tuning circuit having an input directly connected to the tuning signal input

公开(公告)号：US10164315B2

公开(公告)日：2018-12-25

申请号：US15599185

申请日：2017-05-18

Applicant: Infineon Technologies AG

Inventor： Johann Peter Forstner ,  Vadim Issakov ,  Saverio Trotta

IPC: H03F3/45 ,  H01P5/18 ,  H03H7/46 ,  H01F38/14 ,  H01L23/64 ,  H03F1/02 ,  H03F1/56 ,  H03F3/195 ,  H03H7/24 ,  H03H7/09 ,  H03F3/26

Abstract: Coupling apparatuses, circuits having such coupling apparatuses and corresponding methods are provided that involve a first and a second signal being coupled out from an out-coupling circuit part and being separately coupled into first and second circuit pmts. The use of different coupling mechanisms effects signal separation in this case. In particular, one of the signals can be coupled as a differential signal and the other as a common mode signal.