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Andrew F. Folkmann
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Cedar Rapids, IA, US
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Patents Grants
last 30 patents
Information
Patent Grant
RF circuitry having simplified acoustic RF resonator parallel capac...
Patent number
11,025,224
Issue date
Jun 1, 2021
Qorvo US, Inc.
Nadim Khlat
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Voltage memory digital pre-distortion circuit
Patent number
10,742,474
Issue date
Aug 11, 2020
Qorvo US, Inc.
Nadim Khlat
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Envelope tracking system for transmitting a wide modulation bandwid...
Patent number
10,680,559
Issue date
Jun 9, 2020
Qorvo US, Inc.
Nadim Khlat
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Nonlinear bandwidth compression circuitry
Patent number
10,530,305
Issue date
Jan 7, 2020
Qorvo US, Inc.
Andrew F. Folkmann
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Simplified acoustic RF resonator parallel capacitance compensation
Patent number
10,333,494
Issue date
Jun 25, 2019
Qorvo US, Inc.
Nadim Khlat
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Simplified acoustic RF resonator parallel capacitance compensation
Patent number
10,291,205
Issue date
May 14, 2019
Qorvo US, Inc.
Nadim Khlat
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Voltage memory digital pre-distortion circuit
Patent number
10,284,412
Issue date
May 7, 2019
Qorvo US, Inc.
Nadim Khlat
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Multi radio access technology radio circuit
Patent number
10,277,260
Issue date
Apr 30, 2019
Qorvo US, Inc.
Nadim Khlat
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Simplified acoustic RF resonator parallel capacitance compensation
Patent number
10,256,790
Issue date
Apr 9, 2019
Qorvo US, Inc.
Nadim Khlat
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Dual-mode envelope tracking power management circuit
Patent number
10,193,502
Issue date
Jan 29, 2019
Qorvo US, Inc.
Nadim Khlat
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Transmit spectral regrowth cancellation at receiver port
Patent number
9,935,662
Issue date
Apr 3, 2018
Qorvo US, Inc.
Nadim Khlat
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Tunable transmit cancellation in acoustic receiver filters
Patent number
9,893,750
Issue date
Feb 13, 2018
Qorvo US, Inc.
Nadim Khlat
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
RF ladder filter with simplified acoustic RF resonator parallel cap...
Patent number
9,837,984
Issue date
Dec 5, 2017
Qorvo US, Inc.
Nadim Khlat
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Dynamic loadline power amplifier with baseband linearization
Patent number
9,813,036
Issue date
Nov 7, 2017
Qorvo US, Inc.
Andrew F. Folkmann
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Acoustic RF resonator parallel capacitance compensation
Patent number
9,698,756
Issue date
Jul 4, 2017
Qorvo US, Inc.
Nadim Khlat
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Power amplifier spurious cancellation
Patent number
9,444,415
Issue date
Sep 13, 2016
Qorvo US, Inc.
Andrew F. Folkmann
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
De-multiplexing a radio frequency input signal using output transfo...
Patent number
9,331,836
Issue date
May 3, 2016
RF Micro Devices, Inc.
Nadim Khlat
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Noise reduction for envelope tracking
Patent number
9,298,198
Issue date
Mar 29, 2016
RF Micro Devices, Inc.
Michael R. Kay
G05 - CONTROLLING REGULATING
Information
Patent Grant
Frequency selective predistortion
Patent number
9,276,784
Issue date
Mar 1, 2016
RF Micro Devices, Inc.
Andrew F. Folkmann
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Quasi iso-gain supply voltage function for envelope tracking systems
Patent number
9,263,996
Issue date
Feb 16, 2016
RF Micro Devices, Inc.
Andrew F. Folkmann
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Bi-directional power supply signal based linear amplifier
Patent number
9,178,472
Issue date
Nov 3, 2015
RF Micro Devices, Inc.
Andrew F. Folkmann
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Dual parallel amplifier based DC-DC converter
Patent number
9,024,688
Issue date
May 5, 2015
RF Micro Devices, Inc.
Michael R. Kay
G05 - CONTROLLING REGULATING
Information
Patent Grant
Pulsed behavior modeling with steady state average conditions
Patent number
8,952,710
Issue date
Feb 10, 2015
RF Micro Devices, Inc.
James M. Retz
G01 - MEASURING TESTING
Information
Patent Grant
Envelope tracking with variable compression
Patent number
8,626,091
Issue date
Jan 7, 2014
RF Micro Devices, Inc.
Nadim Khlat
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
De-multiplexing a radio frequency input signal using output transfo...
Patent number
8,570,913
Issue date
Oct 29, 2013
RF Micro Devices, Inc.
Nadim Khlat
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Forward and reverse VSWR insensitive power detection using phase sh...
Patent number
7,656,964
Issue date
Feb 2, 2010
RF Micro Devices, Inc.
David DeCoste
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Dual mode quadrature radio frequency power amplifier
Patent number
7,570,932
Issue date
Aug 4, 2009
RF Micro Devices, Inc.
Andrew F. Folkmann
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Active quadrature radio frequency power detector
Patent number
7,440,734
Issue date
Oct 21, 2008
RF Micro Devices, Inc.
David E. Jones
G01 - MEASURING TESTING
Information
Patent Grant
Feed forward circuit
Patent number
4,450,417
Issue date
May 22, 1984
Rockwell International Corporation
Andrew F. Folkmann
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Electronically tunable band reject filter
Patent number
4,426,630
Issue date
Jan 17, 1984
Rockwell International Corporation
Andrew F. Folkmann
H03 - BASIC ELECTRONIC CIRCUITRY
Patents Applications
last 30 patents
Information
Patent Application
VOLTAGE MEMORY DIGITAL PRE-DISTORTION CIRCUIT
Publication number
20190229975
Publication date
Jul 25, 2019
Qorvo US, Inc.
Nadim Khlat
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
RF CIRCUITRY HAVING SIMPLIFIED ACOUSTIC RF RESONATOR PARALLEL CAPAC...
Publication number
20190214966
Publication date
Jul 11, 2019
Qorvo US, Inc.
Nadim Khlat
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
ENVELOPE TRACKING SYSTEM FOR TRANSMITTING A WIDE MODULATION BANDWID...
Publication number
20190109613
Publication date
Apr 11, 2019
Qorvo US, Inc.
Nadim Khlat
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
NONLINEAR BANDWIDTH COMPRESSION CIRCUITRY
Publication number
20190109566
Publication date
Apr 11, 2019
Qorvo US, Inc.
Andrew F. Folkmann
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
MULTI RADIO ACCESS TECHNOLOGY RADIO CIRCUIT
Publication number
20190081649
Publication date
Mar 14, 2019
Qorvo US, Inc.
Nadim Khlat
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
VOLTAGE MEMORY DIGITAL PRE-DISTORTION CIRCUIT
Publication number
20190020526
Publication date
Jan 17, 2019
Qorvo US, Inc.
Nadim Khlat
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
DUAL-MODE ENVELOPE TRACKING POWER MANAGEMENT CIRCUIT
Publication number
20170250653
Publication date
Aug 31, 2017
Qorvo US, Inc.
Nadim Khlat
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
TUNABLE TRANSMIT CANCELLATION IN ACOUSTIC RECEIVER FILTERS
Publication number
20170054459
Publication date
Feb 23, 2017
Qorvo US, Inc.
Nadim Khlat
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
TRANSMIT SPECTRAL REGROWTH CANCELLATION AT RECEIVER PORT
Publication number
20170026064
Publication date
Jan 26, 2017
RF Micro Devices, Inc.
Nadim Khlat
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
RF LADDER FILTER WITH SIMPLIFIED ACOUSTIC RF RESONATOR PARALLEL CAP...
Publication number
20160191012
Publication date
Jun 30, 2016
RF Micro Devices, Inc.
Nadim Khlat
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Acoustic RF resonator parallel capacitance compensation
Publication number
20160191016
Publication date
Jun 30, 2016
RF Micro Devices, Inc.
Nadim Khlat
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
Simplified acoustic rf resonator parallel capacitance compensation
Publication number
20160191014
Publication date
Jun 30, 2016
RF Micro Devices, Inc.
Nadim Khlat
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
FREQUENCY SELECTIVE PREDISTORTION
Publication number
20150139359
Publication date
May 21, 2015
RF Micro Devices, Inc.
Andrew F. Folkmann
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
POWER AMPLIFIER SPURIOUS CANCELLATION
Publication number
20140253244
Publication date
Sep 11, 2014
RF Micro Devices, Inc.
Andrew F. Folkmann
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
BI-DIRECTIONAL POWER SUPPLY SIGNAL BASED LINEAR AMPLIFIER
Publication number
20140225674
Publication date
Aug 14, 2014
RF Micro Devices, Inc.
Andrew F. Folkmann
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
DE-MULTIPLEXING A RADIO FREQUENCY INPUT SIGNAL USING OUTPUT TRANSFO...
Publication number
20140016517
Publication date
Jan 16, 2014
RF Micro Devices, Inc.
Nadim Khlat
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
ENVELOPE TRACKING WITH VARIABLE COMPRESSION
Publication number
20130181774
Publication date
Jul 18, 2013
RF Micro Devices, Inc.
Nadim Khlat
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
PULSED BEHAVIOR MODELING WITH STEADY STATE AVERAGE CONDITIONS
Publication number
20130181730
Publication date
Jul 18, 2013
RF Micro Devices, Inc.
James M. Retz
G01 - MEASURING TESTING
Information
Patent Application
DUAL PARALLEL AMPLIFIER BASED DC-DC CONVERTER
Publication number
20130176075
Publication date
Jul 11, 2013
RF Micro Devices, Inc.
Michael R. Kay
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
NOISE REDUCTION FOR ENVELOPE TRACKING
Publication number
20130169245
Publication date
Jul 4, 2013
RF Micro Devices, Inc.
Michael R. Kay
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Application
DYNAMIC LOADLINE POWER AMPLIFIER WITH BASEBAND LINEARIZATION
Publication number
20130154729
Publication date
Jun 20, 2013
RF Micro Devices, Inc.
Andrew F. Folkmann
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
QUASI ISO-GAIN SUPPLY VOLTAGE FUNCTION FOR ENVELOPE TRACKING SYSTEMS
Publication number
20130024142
Publication date
Jan 24, 2013
RF Micro Devices, Inc.
Andrew F. Folkmann
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
DE-MULTIPLEXING A RADIO FREQUENCY INPUT SIGNAL USING OUTPUT TRANSFO...
Publication number
20110310775
Publication date
Dec 22, 2011
RF Micro Devices, Inc.
Nadim Khlat
H04 - ELECTRIC COMMUNICATION TECHNIQUE