Patents - Focus Microwaves

Focus’ main disruptive advantage is Innovation. Starting in 2000 Focus now owns 158 patents and has another 25 patents pending, all on various tuner types and associated calibration, tuning and measurement applications.

In the process Focus has invented all new tuner types, beyond the traditional single probe wideband impedance slide screw tuner known since 1985:

The Harmonic Rejection Tuner           (PHT)
The High Gamma Prematching Tuner (PMT)
The Frequency Selective Tuner            (FST)
The 2 Frequency Harmonic Tuner         (MPT-Lite)
The 3 Frequency Harmonic Tuner         (MPT-Classic)
The 4 Frequency Harmonic Tuner         (MPT-Quattro)
A line of Low Frequency Tuners, the LFT’s (10-250MHz)

Since 2015 Focus also owns 3 Mesuro patents on active tuning technology.

Issued
Pending
Provisional

This is an up-to-date list of all US Patents issued to Focus Microwaves Inc.

Issued Patents

Patent	Description	Date
11,821,930	High Directivity Signal Coupler	21/11/2023
11,816,416	Experimental Verification and Optimization of Two-Stage Amplifier	14/11/2023
11,742,833	Temperature Controlled High Power Tuner	29/08/2023
11,733,280	Load Pull System Using Two-Probe Waveguide Tuner	22/08/2023
11,716,068	Very Low Frequency Impedance Tuner	01/08/2023
11,688,919	Low Profile Millimeterwave Load Pull Tuner	27/06/2023
11,662,364	Integrated Waveguide Tuner	30/05/2023
11,621,468	Combination Probes for Load Pull Tuner	04/04/2023
11,616,281	Two Probe Waveguide Tuner	28/03/2023
11,604,224	High Speed Calibration for Impedance Tuner	14/03/2023
11,598,790	Hermetic Load and Source Pull Wafer Probe Station	07/03/2023
11,581,623	Anti-Skewing Load Pull Tuner with Rotating Probe	14/02/2023
11,519,994	Calibration Method for Slide Screw Impedance Tuners	06/12/2022
11,506,708	On-Wafer Tuner System and Method	22/11/2022
11,480,589	Wafer Probe Integration with Load Pull Tuner	25/10/2022
11,480,610	Load Pull Pattern Generation	25/10/2022
11,460,530	Slide Screw Tuner with Adjustable Pitch	04/10/2022
11,462,809	High-Speed High-Resolution Slide Screw Tuner	04/10/2022
11,428,771	Low Profile High Speed Load Pull Tuner System	30/08/2022
11,402,424	Low Profile Slide Screw Tuners and Method	02/08/2022
11,391,770	Heterodyne Active Electronic Load Pull Tuner	18/07/2022
11,327,101	Integrated Pre-Matching Module for Impedance Tuner	10/05/2022
11,329,354	Anti-Skewing Impedance Tuner	10/05/2022
11,233,307	Directional Wire Coupler for Waveguide Tuners and Method	25/01/2022
11,217,870	Digital Load Pull Tuner	04/01/2022
11,193,966	Low Frequency Active Load Pull Tuner	07/12/2021
11,196,139	Simple Directional Coupler	07/12/2021
11,156,626	Waveguide Slide Screw Tuner with Rotating Disc Probes	26/10/2021
11,158,921	Fast Impedance Tuner Calibration	26/10/2021
11,137,430	Active Load Pull Tuning System for Modulated Signal	05/10/2021
11,137,439	High Speed Hybrid Load and Source Pull System	05/10/2021
11,137,470	A Coaxial TRL Calibration Kit Adapter	05/10/2021
11,125,777	Shielded RF and Thermal Connection for On-Wafer Load Pull	21/09/2021
11,119,136	Multi-Octave Hybrid Harmonic Load Pull Tuner	14/09/2021
11,119,140	Impedance Pattern Generation for Noise Parameter Measurement System	14/09/2021
11,092,619	Active Harmonic Load Pull Impedance Tuner	17/08/2021
11,095,013	Integrated Tera-Hertz Slide Screw Tuner	17/08/2021
11,041,882	Active Harmonic Load Pull Impedance Tuner	22/06/2021
11,038,249	Harmonic Hybrid Electronic Load Pull Tuner	15/06/2021
11,029,351	Transforming Load Pull Test Fixture for Wave Measurements	08/06/2021
11,002,762	Millimeterwave Tuners with External Airline	11/05/2021
11,006,288	Method for Experimental Verification of RF Matching Networks	11/05/2021
10,971,791	Transmission Line for High Power Tuners	06/04/2021
10,938,490	Calibration Method for Coupler-Tuner Assembly	02/03/2021
10,884,046	Calibration and Load Pull Method for RF and Baseband Frequencies	05/01/2021
10,804,872	Liquid cooled High Power Impedance Tuner	13/10/2020
10,756,694	MHz Range Harmonic Impedance Tuner and Method	25/08/2020
10,734,697	Coaxial Adjustable Wave Probe	04/08/2020
10,725,092	Pre-Matched Coaxial Transistor Test Fixture	28/07/2020
10,725,094	Active Electronic Tuner	28/07/2020
10,700,402	Compact Millimeter-Wave Tuner	30/06/2020
10,693,208	High Gamma Disc-Tuning Probes for Impedance Tuners	23/06/2020
10,693,437	High Gamma On-Wafer Load Pull Test System	23/06/2020
10,686,239	Slide Screw Tuners with Offset Probes and Method	16/06/2020
10,637,122	A Hermetic RF Connection for On-Wafer Operation	28/04/2020
10,637,179	Slide Screw Tuners with Offset Tuning Probes and Method	28/04/2020
10,591,511	Frequency Adjustable Pre-Matching Coaxial Transistor Test Fixture	17/03/2020
10,591,530	Coplanar Load Pull Test Fixture for Wave Measurements	17/03/2020
10,591,571	Adjustable Pre-Matching Coaxial Transistor Test Fixture	17/03/2020
10,520,541	Hybrid Electronic Tuner	03/03/2019
10,444,266	Hybrid Split Signal Load Pull System with Wave-Probe	25/10/2019
10,451,702	Calibration Method for High Gamma Combo Tuner	22/10/2019
10,429,426	Setup and Method for Noise Parameter Measurement	01/10/2019
10,429,484	Compact Harmonic Tuner System with Rotating Probes	01/10/2019
10,345,370	Hybrid Harmonic Tuner	07/09/2019
10,345,422	Compact Harmonic Tuner System with Rotating Probes	07/09/2019
10,348,273	Hybrid Digital Electronic Tuner	07/09/2019
10,317,445	High Gamma Electronic Tuner	17/06/2019
10,290,428	High Power Low Frequency Tuners	14/05/2019
10,281,510	Load Pull Method for Transistors Driven by Modulated Signal	07/05/2019
10,276,910	Programmable Harmonic Amplitude and Phase Controller	30/04/2019
10,187,228	Integrated Split Signal Hybrid Harmonic Tune	22/01/2019
10,184,972	Transistor Test Fixture with Convex Surface	22/01/2019
10,177,428	Compact Harmonic Amplitude and Phase Controller	08/01/2019
10,177,429	Hybrid Harmonic Impedance Tuner	08/01/2019
10,168,362	Active Slide Screw Tuner	01/01/2019
10,103,713	Hybrid Electro-Mechanical Tuner	16/10/2018
10,097,165	High Gamma Compact Harmonic Tuner	09/10/2018
10,006,951	Stable Load Pull Operation Using Tuners	26/06/2018
10,001,521	Transistor Test Fixture with Integrated Couplers and Method	19/06/2018
9,960,472	Programmable Amplitude and Phase Controller	01/05/2018
9,921,253	Method for Reducing Power Requirements in Active Load Pull System	20/03/2018
9,897,637	High Frequency Phase Reference Standard Signal	20/02/2018
9,899,984	Compact Multi-Carriage Impedance Tuner and Method	20/02/2018
9,893,717	Multi-band Low Frequency Impedance Tuner	13/02/2018
RE46703	High Frequency High Reflection Pre-Matching Tuners with Variable Zero Initialization	06/02/2018
9,866,203	High Reliability Power Tuners	09/01/2018
9,857,410	Tuning Method for Hybrid Active Injection Load Pull System	02/01/2018
9,835,652	Multi-Frequency Attenuation and Phase Shifters	05/12/2017
9,838,986	Calibration of High Frequency Signal Measurement Systems	05/12/2017
9,722,569	Multi-band Low Frequency Impedance Tuner	01/08/2017
9,716,303	Low Cost Probes for Slide Screw Tuners	25/07/2017
9,716,483	Wideband Slide Screw Impedance Tuner	25/07/2017
9,664,718	High Speed Hybrid Active Load Pull	30/05/2017
9,666,928	High Power Slide Screw Tuners	30/05/2017
9,653,332	Wafer Probe Holder for Planarity and Orientation Adjustment	16/05/2017
9,647,629	Variable Capacitors for High Accuracy Tuning	09/05/2017
9,625,556	Method for Calibration and Tuning with Impedance Tuners	18/04/2017
9,620,842	Compact Two Probe Impedance Tuner	11/04/2017
9,602,072	Circular Impedance Tuner	21/03/2017
9,553,376	Coaxial Alignment Instrument Adapter	24/01/2017
9,541,592	Noise Parameter Measurement System	10/01/2017
9,459,336	Hybrid Load Pull System and Method	04/10/2016
9,431,999	Intelligent Mechanical Balancing Apparatus for Slide Screw Tuner	30/08/2016
9,112,250	A Wideband Attenuation and Phase Controller	18/08/2016
9,366,710	Noise Parameter Extraction Method	14/06/2016
9,344,061	Low Frequency Coaxial Capacitors and Tuners	17/05/2016
9,335,345	A Method for Planarity Alignment of Waveguide Wafer Probes	10/05/2016
9,331,670	Gamma Boosting Unit (GBU) for Hybrid Load and Source Pull	03/05/2016
9,322,843	A Method for Planarity Alignment of Wafer Probes	26/04/2016
9,325,290	An Impedance Tuner with Adjustable Electrical Length	26/04/2016
9,310,410	A Load and Source Pull Test System for RF and Baseband Frequencies	12/04/2016
9,276,551	Impedance Tuners with Rotating Multi-Section Probes	01/03/2016
9,267,977	A Method for Maximizing for Reflection Factor of Impedance Tuners	23/02/2016
9,257,963	Impedance Tuners with Rotating Probes	09/02/2016
9,252,471	Wideband Attenuation and Phase Controller	02/02/2016
9,252,738	Wideband Tuning Probes for Impedance Tuners and Method	02/02/2016
9,213,056	Multi-Source Active Injection Load Pull System and Method	15/12/2015
RE45,667	Adaptable Pre-Matched Tuner Systems and Method	15/12/2015
9,041,498	A Mechanically Short Multi-Carriage Tuner and Method	26/05/2015
8,975,988	An Impedance Tuner using Dielectrically Filled Airline	10/03/2015
8,933,707	Waveguide Tuners with Planarity Adjustment for Wafer Probing	13/01/2015
8,919,861	Improved Mechanically Controlled Variable Capacitors for Impedance Tuner	16/12/2014
8,854,162	Method for Preventing Electrical Short in Impedance Tuners Using Mechanical Stop	07/10/2014
8,841,921	Adjustable Signal Sampling Sensor and Method	23/09/2014
8,786,293	Noise parameter Measurement System and Method	22/07/2014
8,629,742	VHF Harmonic Impedance Tuner	14/01/2014
8,896,401	Calibration and Tuning Using Compact Multi Frequency-Range Impedance Tuners	25/11/2013
8,497,689	Method for Reducing Power Requirements in Active L/P Systems	30/07/2013
8,497,745	VHF Harmonic Impedance Tuner	30/07/2013
8,466,758	Impedance Tuner with Integrated Bias Network	18/06/2013
8,461,946	Impedance Tuners with Mechanical Stop	11/06/2013
8,427,255	Self-Adjustable Probes for Slide Screw Impedance Tuners	23/04/2013
8,410,862	Compact Multi Frequency-Range Impedance Tuner	02/04/2013
8,405,405	Wideband I-V Probe and Method	26/03/2013
8,405,466	Wideband Low Frequency Impedance Tuner	26/03/2013
8,405,475	Harmonic Impedance Tuner with Four Wideband Probes and Methods	26/03/2013
8,400,238	Compact Harmonic Impedance Tuner	19/03/2013
8,362,787	Harmonic Rejection Tuner with Adjustable Short Circuited Resonators	29/01/2013
8,358,186	Impedance Tuners with Resonant Probes	22/01/2013
8,212,628	Harmonic Impedance Tuner with Four Wideband Peobes and Method	03/07/2012
8,212,629	Wideband Low Frequency Impedance Tuner	03/07/2012
8,203,348	Autonomous Impedance Tuner with Human Control Interface	19/06/2012
8,188,816	Compact Harmonic Impedance Tuner	29/05/2012
7,816,926	High Frequency Circuit Analyser	19/10/2010
7,646,267	Low Frequency Electro-Mechanical Impedance Tuner	12/01/2010
7,646,268	Low Frequency Harmonic Load Pull Tuner and Method	12/01/2010
7,561,004	Harmonic Rejection Tuner with Adjustable Resonators	14/07/2009
7,449,893	Harmonic Load Pull Tuner with Resonant Pre-matching Module	11/11/2008
7,385,461	Method of Combining Signals and Device Therefor	10/06/2008
7,248,866	Frequency Selective Load Pull Tuner and Method	24/07/2007
7,135,941	Triple Probe Automatic Slide Screw Load Pull Tuner and Method	14/11/2006
7,102,457	Mechanically Balanced Microwave Load Pull Tuner	05/09/2006
7,035,628	High Reflection Microwave Tuner Using Metal-dielectric Probe and Method	30/05/2006
7,034,629	High Frequency, High Reflection Pre-Matching Tuners with Variable Zero Initialization	25/04/2006
6,998,836	Low Loss Integration of Wafer Probes with Microwave Tuners	14/02/2006
6,850,076	Microwave Tuners for Wideband High Reflection Applications	02/01/2005
6,674,293	Adaptable Pre-Matched Tuner System and Method	06/01/2004
6,639,393	Methods and Apparatus for Time-Domain Measurement with a High Frequency Circuit Analyzer	28/10/2003
6,414,563	Low-Loss Microwave Device Test Fixture with Adjustable Blocks	02/07/2002
6,297,649	Harmonic Rejection Load Tuner	02/10/2001

This is an up-to-date list of all US Patents pending for Focus Microwaves Inc.

Pending Patents

Patent	Description	Date
16/509,936	Hybrid Harmonic Source Pull Tuner System	12/07/2019
17/518,225	Adjustable Directional Coupler	03/11/2021
17/524,836	Load Pull Tuner with 2-State Probes	12/11/2021
17/541,404	Very Low Frequency Tuner with Adjustable Dielectric	03/12/2021
17/725,728	Sub-THz Vector Load Pull Tuner	21/04/2022
17/826,838	Planarity Control for Load Pull Tuner On Wafer	27/05/2022
17/827,861	On-Wafer Tuner with Contact Control	30/05/2022
17/829,756	Two Probe Compact Slide Screw Tuner and Method	01/06/2022
17/871,316	Anti-Skewing Impedance Tuner Calibration	22/07/2022
17/960,990	Tuning Methods for Digital Hybrid Load Pull System	06/10/2022
17/965,900	Waveguide Slide Screw Tuner and Method	14/10/2022
17/966,728	Directional Signal Coupler-Divider	14/10/2022
17/966,757	Waveguide Tuner with Signal Coupler-Divider	14/10/2022
17/975,885	A Simple Waveguide Load Pull Tuner	28/10/2022
17/981,415	Two Probe Low Profile Tuner	05/11/2022
18/113,850	Harmonic Load Pull Tuner	24/02/2023
18/133,554	Load Pull Tuner for Waveguide Wafer Probe	12/04/2023
18/143,165	Anti Abrasion Wafer Probes	04/05/2023
18/221,094	Load Pull Tuning Probe with Adjustable Notch	12/07/2023
18/221,433	Load Pull Tuner on Waveguide Wafer-Probe	13/07/2023
18/222,517	Active Load Pull System	17/07/2023
18/244,416	Method for Dynamic Balancing Slide Screw Tuners On Wafer	11/09/2023
18/244,436	Load Pull Tuner With Integrated On-Wafer Planarity Control	11/09/2023
18/368,668	Load Pull System Using Tuner with Two Dual-State Probes	15/09/2023
18/375,083	Pre-Matched Hybrid Load Pull Tuner for Modulated Signal and Method	29/09/2023

This is an up-to-date list of all provisional US Patents for Focus Microwaves Inc.

wdt_ID	ID	s	Icon	Patent	Description	Date	Link

ID	wdt_ID	Model	Min Frequency	Max Frequency	Type
1.3	32	M-4030	3.0	40.0	Wideband Fundamental, High VSWR and 3 Frequency Harmonic Tuning
1.0	30	M-1818	1.8	18.0	Wideband Fundamental, High VSWR and 3 Frequency Harmonic Tuning
1.2	31	M-3620	2.0	36.0	Wideband Fundamental, High VSWR and 3 Frequency Harmonic Tuning
2.0	24	C-1818	1.8	18.0	Wideband Fundamental
2.1	25	C-3620	2.0	36.0	Wideband Fundamental
2.3	26	C-4030	3.0	40.0	Wideband Fundamental
3.1	27	L-1818	1.8	18.0	Wideband Fundamental, High VSWR and 2 Frequency Harmonic Tuning
3.2	28	L-3620	2.0	36.0	Wideband Fundamental, High VSWR and 2 Frequency Harmonic Tuning
3.3	29	L-4030	3.0	40.0	Wideband Fundamental, High VSWR and 2 Frequency Harmonic Tuning

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