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John David Birkbeck
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New Milton, GB
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Patents Grants
last 30 patents
Information
Patent Grant
Bias techniques for amplifiers with mixed polarity transistor stacks
Patent number
12,278,597
Issue date
Apr 15, 2025
pSemi Corporation
John Birkbeck
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
RF frequency multiplier without balun
Patent number
12,034,406
Issue date
Jul 9, 2024
Murata Manufacturing Co., Ltd.
John Birkbeck
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Low loss reflective passive phase shifter using time delay element...
Patent number
11,711,068
Issue date
Jul 25, 2023
pSemi Corporation
John Birkbeck
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Bias techniques for amplifiers with mixed polarity transistor stacks
Patent number
11,689,161
Issue date
Jun 27, 2023
pSemi Corporation
John Birkbeck
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
RF frequency multiplier without balun
Patent number
11,601,092
Issue date
Mar 7, 2023
pSemi Corporation
John Birkbeck
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Bias techniques for amplifiers with mixed polarity transistor stacks
Patent number
11,133,782
Issue date
Sep 28, 2021
pSemi Corporation
John Birkbeck
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
RF frequency multiplier without balun
Patent number
11,075,604
Issue date
Jul 27, 2021
pSemi Corporation
John Birkbeck
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Bias techniques for controlled voltage distribution in stacked tran...
Patent number
11,025,207
Issue date
Jun 1, 2021
pSemi Corporation
Kashish Pal
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Low loss reflective passive phase shifter using time delay element...
Patent number
10,840,889
Issue date
Nov 17, 2020
pSemi Corporation
John Birkbeck
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
High frequency phase shifter using limited ground plane transition...
Patent number
10,396,780
Issue date
Aug 27, 2019
pSemi Corporation
John Birkbeck
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Hybrid coupler with phase and attenuation control
Patent number
10,211,801
Issue date
Feb 19, 2019
pSemi Corporation
John Birkbeck
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
High frequency phase shifter using limited ground plane transition...
Patent number
10,075,159
Issue date
Sep 11, 2018
pSemi Corporation
John Birkbeck
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Optimizing power consumption in amplifiers
Patent number
7,372,332
Issue date
May 13, 2008
Roke Manor Research Limited
John David Birkbeck
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Grant
Bias circuit for a bipolar transistor
Patent number
7,288,992
Issue date
Oct 30, 2007
Roke Manor Research Limited
John David Birkbeck
H03 - BASIC ELECTRONIC CIRCUITRY
Patents Applications
last 30 patents
Information
Patent Application
Linearizing Beam-Forming Transmission System
Publication number
20250038798
Publication date
Jan 30, 2025
pSemi Corporation
David Watling
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Application
RF Frequency Multiplier Without Balun
Publication number
20250007464
Publication date
Jan 2, 2025
MURATA MANUFACTURING CO., LTD.
John Birkbeck
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Low Loss Reflective Passive Phase Shifter using Time Delay Element...
Publication number
20240030897
Publication date
Jan 25, 2024
pSemi Corporation
John Birkbeck
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
BIAS TECHNIQUES FOR AMPLIFIERS WITH MIXED POLARITY TRANSISTOR STACKS
Publication number
20230353099
Publication date
Nov 2, 2023
pSemi Corporation
John Birkbeck
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
RF Frequency Multiplier Without Balun
Publication number
20230283234
Publication date
Sep 7, 2023
pSemi Corporation
John Birkbeck
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
BIAS TECHNIQUES FOR AMPLIFIERS WITH MIXED POLARITY TRANSISTOR STACKS
Publication number
20220182017
Publication date
Jun 9, 2022
pSemi Corporation
John Birkbeck
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
RF Frequency Multiplier Without Balun
Publication number
20220014148
Publication date
Jan 13, 2022
pSemi Corporation
John Birkbeck
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Low Loss Reflective Passive Phase Shifter using Time Delay Element...
Publication number
20210135656
Publication date
May 6, 2021
pSemi Corporation
John Birkbeck
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
RF Frequency Multiplier Without Balun
Publication number
20210099130
Publication date
Apr 1, 2021
pSemi Corporation
John Birkbeck
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
BIAS TECHNIQUES FOR AMPLIFIERS WITH MIXED POLARITY TRANSISTOR STACKS
Publication number
20210075376
Publication date
Mar 11, 2021
pSemi Corporation
John Birkbeck
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
BIAS TECHNIQUES FOR CONTROLLED VOLTAGE DISTRIBUTION IN STACKED TRAN...
Publication number
20210075377
Publication date
Mar 11, 2021
pSemi Corporation
Kashish PAL
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Low Loss Reflective Passive Phase Shifter using Time Delay Element...
Publication number
20190296718
Publication date
Sep 26, 2019
pSemi Corporation
John Birkbeck
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Low Loss Reflective Passive Phase Shifter using Time Delay Element
Publication number
20190140622
Publication date
May 9, 2019
pSemi Corporation
John Birkbeck
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
High Frequency Phase Shifter Using Limited Ground Plane Transition...
Publication number
20190081626
Publication date
Mar 14, 2019
pSemi Corporation
John Birkbeck
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Hybrid Coupler with Phase and Attenuation Control
Publication number
20180019722
Publication date
Jan 18, 2018
PEREGRINE SEMICONDUCTOR CORPORATION
John Birkbeck
H03 - BASIC ELECTRONIC CIRCUITRY
Information
Patent Application
Optimizing power consumption in amplifiers
Publication number
20050218992
Publication date
Oct 6, 2005
Roke Manor Research Limited
John David Birkbeck
H03 - BASIC ELECTRONIC CIRCUITRY