Rat race couplers

Industry

CPC
H03D2200/0003

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Parent Industries

HELECTRICITY H03Electronic circuits H03DDEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER H03D2200/00Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D

Current Industry

H03D2200/0003Rat race couplers

Industries

Patents Grantslast 30 patents

Information Patent Grant
Magnetic-free non-reciprocal circuits based on sub-harmonic spatio-...
- Patent number 11,031,665
- Issue date Jun 8, 2021
- The Trustees of Columbia University In the City of New York
- Tolga Dinc
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
High frequency signal generation apparatus
- Patent number 10,381,980
- Issue date Aug 13, 2019
- Korea University Research and Business Foundation
- Jae Sung Rieh
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
N-port direct receiver
- Patent number 6,650,178
- Issue date Nov 18, 2003
- Sony International (Europe) GmbH
- Veselin Brankovic
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
FMCW radar system
- Patent number 6,094,158
- Issue date Jul 25, 2000
- Roscoe Charles Williams
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Single balanced frequency downconverter for direct broadcast satell...
- Patent number 5,903,827
- Issue date May 11, 1999
- Fujitsu Compound Semiconductor, Inc.
- Wayne Kennan
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for automatically balancing a radio-frequency...
- Patent number 5,862,466
- Issue date Jan 19, 1999
- Hewlett-Packard Company
- Bruce A. Erickson
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Dielectric resonator phase shifting frequency discriminator
- Patent number 5,847,620
- Issue date Dec 8, 1998
- Illinois Institute of Technology
- Thomas T. Y. Wong
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Electronic viewing aid
- Patent number 5,818,381
- Issue date Oct 6, 1998
- Roscoe C. Williams Limited
- Roscoe Charles Williams
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Resonator for coupling intermediate frequency signals from a radio...
- Patent number 5,790,945
- Issue date Aug 4, 1998
- Hewlett-Packard Company
- Bruce A. Erickson
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Radar transmitter/receivers
- Patent number 5,587,713
- Issue date Dec 24, 1996
- Plessey SemiConductors Limited
- Heinz Pfizenmaier
- G01 - MEASURING TESTING
Information Patent Grant
High electron mobility transistor monolithic integrated circuit rec...
- Patent number 5,528,769
- Issue date Jun 18, 1996
- TRW Inc.
- John J. Berenz
- G01 - MEASURING TESTING
Information Patent Grant
Mixer with rat race circuit
- Patent number 4,876,744
- Issue date Oct 24, 1989
- Matsushita Electric Industrial Co., Ltd.
- Kouei Misaizu
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Suspended stripline rat race mixer with simplified I. F. extraction
- Patent number 4,811,426
- Issue date Mar 7, 1989
- Martin Marietta Corporation
- Albert N. Pergande
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Radio frequency mixer
- Patent number 4,654,887
- Issue date Mar 31, 1987
- Raytheon Company
- Michael T. Murphy
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Ring hybrid mixing
- Patent number 4,637,068
- Issue date Jan 13, 1987
- Alpha Industries, Inc.
- Ian Crossley
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Balanced mixer
- Patent number 4,603,437
- Issue date Jul 29, 1986
- Motorola, Inc.
- Michael Dydyk
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Hybrid ring having improved bandwidth characteristic
- Patent number 4,420,839
- Issue date Dec 13, 1983
- Bunker Ramo-Eltra Corporation
- John Hogerheiden
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Microwave up-converter
- Patent number 4,380,830
- Issue date Apr 19, 1983
- L.M.T. Radio Professionelle
- Maurice Marchand
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Ultra-high frequency hybrid mixer
- Patent number 4,377,005
- Issue date Mar 15, 1983
- LMT Radio Professionnelle
- Maurice Marchand
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Mixer circuit
- Patent number 4,249,263
- Issue date Feb 3, 1981
- Hitachi, Ltd.
- Keiro Shinkawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Frequency converter apparatus
- Patent number 4,099,126
- Issue date Jul 4, 1978
- Rockwell International Corporation
- Ben R. Hallford
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Mixer circuit
- Patent number 4,031,472
- Issue date Jun 21, 1977
- Hitachi, Ltd.
- Keiro Shinkawa
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Rat-race mixer circuit
- Patent number 4,008,438
- Issue date Feb 15, 1977
- Hitachi, Ltd.
- Keiro Shinkawa
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frequency converting device for RF signals
- Patent number 3,943,450
- Issue date Mar 9, 1976
- Siemens Aktiengesellschaft
- Klaus Otremba
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
3870960
- Patent number 3,870,960
- Issue date Mar 11, 1975
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
3659206
- Patent number 3,659,206
- Issue date Apr 25, 1972
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
3512091
- Patent number 3,512,091
- Issue date May 12, 1970
- H03 - BASIC ELECTRONIC CIRCUITRY

Rat race couplers

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Magnetic-free non-reciprocal circuits based on sub-harmonic spatio-...

High frequency signal generation apparatus

N-port direct receiver

FMCW radar system

Single balanced frequency downconverter for direct broadcast satell...

Method and apparatus for automatically balancing a radio-frequency...

Dielectric resonator phase shifting frequency discriminator

Electronic viewing aid

Resonator for coupling intermediate frequency signals from a radio...

Radar transmitter/receivers

High electron mobility transistor monolithic integrated circuit rec...

Mixer with rat race circuit

Suspended stripline rat race mixer with simplified I. F. extraction

Radio frequency mixer

Ring hybrid mixing

Balanced mixer

Hybrid ring having improved bandwidth characteristic

Microwave up-converter

Ultra-high frequency hybrid mixer

Mixer circuit

Frequency converter apparatus

Mixer circuit

Rat-race mixer circuit

Frequency converting device for RF signals

3870960

3659206

3512091