| Patents for H03D 9 - Demodulation or transference of modulation of modulated electromagnetic waves (1,196) |
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| 11/19/1992 | EP0513287A1 Motion detector unit. |
| 11/04/1992 | EP0511604A2 Image recovery mixer |
| 10/15/1992 | DE4111919A1 Millimetre wavelength frequency division for LF prodn. - using feedback loop with frequency divider, harmonic generator and N-harmonic mixer to achieve required frequency |
| 09/30/1992 | EP0314753B1 Suspended stripline rat race mixer with simplified i.f. extraction |
| 09/10/1992 | DE4107112A1 Microwave mixer with 2 mixers and hybrid coupler - has mixer stages on opposite major surfaces of dielectric substrate |
| 09/08/1992 | US5146182 Microwave device |
| 08/25/1992 | US5142697 Balanced high-frequency mixer having a balun circuit |
| 08/04/1992 | US5136720 Matrixed mixer |
| 07/22/1992 | EP0495598A1 Radio frequency mixer circuits |
| 07/07/1992 | USH1081 Monolithic millimeter-wave image guide balanced mixer |
| 06/30/1992 | US5127102 Radio frequency mixer circuits |
| 06/23/1992 | US5125111 Resistive planar ring double-balanced mixer |
| 06/23/1992 | US5125110 Microstripline microwave mixer using waveguide filter |
| 06/23/1992 | US5125109 Low noise block down-converter for direct broadcast satellite receiver integrated with a flat plate antenna |
| 06/11/1992 | WO1992010026A1 Amplitude and phase balanced voltage-controlled oscillator |
| 06/11/1992 | WO1992009905A1 Motion detector unit |
| 04/15/1992 | EP0480494A1 Self-oscillating microwave frequency converter comprising a dielectric resonator |
| 04/15/1992 | EP0480145A1 Modulator and mixer stage |
| 04/07/1992 | CA1298619C Microwave converter |
| 02/25/1992 | US5091730 Pulse radar and components therefor |
| 01/21/1992 | US5083130 Pulse radar and components therefor |
| 01/21/1992 | US5083050 Modified cascode mixer circuit |
| 01/14/1992 | US5081424 Unequal stub length diplexing microwave frequency discriminator circuit |
| 01/08/1992 | EP0464608A1 High frequency, wide band, triple balanced mixer |
| 12/31/1991 | CA1293775C Harmonically pumped monolithic planar doped barrier mixer |
| 11/27/1991 | EP0458364A2 Microwave device |
| 11/26/1991 | CA2043102A1 Microwave device |
| 10/31/1991 | DE4013181A1 HF oscillator for microwave transmitter - has signals from two identical active oscillator circuits combined |
| 10/29/1991 | US5062149 Millimeter wave device and method of making |
| 09/03/1991 | US5045815 Amplitude and phase balanced voltage-controlled oscillator |
| 08/28/1991 | EP0443668A2 Image rejection frequency converter provided in planar technology |
| 07/23/1991 | US5034750 Pulse radar and components therefor |
| 06/25/1991 | US5027163 High level wide band RF mixer |
| 06/05/1991 | EP0430508A2 Matrixed mixer |
| 05/28/1991 | US5020148 Image suppression harmonic frequency converter operating in the microwave field |
| 05/07/1991 | CA1283958C Suspended stripline rat race mixer with simplified i.f. extraction |
| 04/09/1991 | US5006811 Dual quadrature frequency converter |
| 04/03/1991 | EP0420553A2 Subharmonic mixer |
| 04/03/1991 | EP0420337A1 Balanced hyperfrequency with "balun" circuit |
| 03/05/1991 | US4998293 Multiple-band mixer circuit |
| 02/26/1991 | US4996718 Frequency converter circuit |
| 02/21/1991 | DE3927114A1 Microwave range coupler with metal field structures - has conductive structure as combination of fin line and microstrip structure on substrate |
| 02/19/1991 | US4994755 Active balun |
| 02/05/1991 | US4991228 Microwave converter |
| 12/27/1990 | EP0403661A1 Mixer |
| 10/23/1990 | US4965853 Radio receiver circuit with tuning feedback control for a tunable bandpass filter |
| 10/02/1990 | USH832 Planar monolithic self-oscillating mixer |
| 09/27/1990 | DE3909685A1 Method for frequency conversion, especially for communal satellite receiver systems, and associated frequency converter |
| 09/26/1990 | EP0389025A2 Microwave frequency converter |
| 09/05/1990 | CN1009518B Single side band harmonic frequency converter for high-frequency receiving and transmitting systems |
| 09/04/1990 | US4955085 Series RF/parallel if mixer array |
| 09/04/1990 | US4955079 Waveguide excited enhancement and inherent rejection of interference in a subharmonic mixer |
| 09/04/1990 | US4954790 Enhanced coupled, even mode terminated baluns, and mixers and modulators constructed therefrom |
| 08/16/1990 | DE3922154A1 Wide band push=pull mixer with strip lines - has second fork-shaped supply network with impedance matching |
| 08/14/1990 | US4949398 GaAs MESFET balanced resistive mixer |
| 08/07/1990 | US4947062 Double balanced mixing |
| 07/26/1990 | WO1990008425A1 Mixer |
| 07/05/1990 | DE4006723A1 Wide band double mixer for microwave and MM wave operation - has even number of conductor loops, each of four line branches of different length |
| 06/13/1990 | EP0372951A2 Superconductive electromagnetic wave mixer, and apparatus incorporating same |
| 06/13/1990 | DE3841266A1 Push-pull mixer for the microwave range |
| 05/15/1990 | US4926500 Frequency converter |
| 04/26/1990 | DE3918277A1 Push=pull mixer circuitry for wire band operations - has stripline symmetry circuits each with by=pass lines, serving as matching circuits for signal branches |
| 04/18/1990 | EP0364035A2 Radio receiver circuit arrangement |
| 02/14/1990 | EP0354707A2 Frequency converter |
| 12/27/1989 | EP0348370A2 Low noise block down-converter for direct broadcast satellite receiver integrated with a flat plate antenna |
| 10/31/1989 | US4878253 Planar monolithic millimeter wave mixer |
| 10/24/1989 | US4876744 Mixer with rat race circuit |
| 10/12/1989 | DE3839236A1 Quasi-optical mixer |
| 09/05/1989 | US4864645 Harmonically pumped monolithic planar doped barrier mixer |
| 08/23/1989 | EP0329077A2 SSB mixer in microstrip fashion |
| 08/08/1989 | US4855691 Amplitude stabilizer for use in microwave discriminator |
| 07/05/1989 | EP0322612A2 Microwave image suppression harmonic frequency converter |
| 07/04/1989 | US4845389 Very high frequency mixer |
| 06/20/1989 | US4841169 Dual-gate fet amplifier-mixer with intermediate ohmic island for rejecting a frequency band |
| 05/31/1989 | EP0317642A1 Frequency converter circuit |
| 05/24/1989 | DE3738262A1 Screened coplanar strip line arrangement |
| 05/24/1989 | DE3737671A1 Push-pull microwave mixer |
| 05/10/1989 | EP0314753A1 Suspended stripline rat race mixer with simplified i.f. extraction. |
| 04/18/1989 | US4823400 Radio frequency mixer |
| 04/05/1989 | EP0310222A2 Multiple-band mixer circuit |
| 03/28/1989 | US4817201 Single side band harmonic frequency converter, in particular for high-frequency receiving and transmitting systems |
| 03/21/1989 | US4814718 Microwave discriminator and demodulator/receiver using the same |
| 03/07/1989 | US4811426 Suspended stripline rat race mixer with simplified I. F. extraction |
| 01/18/1989 | EP0299786A2 A microwave converter |
| 12/15/1988 | WO1988010024A1 Frequency converter circuit |
| 12/06/1988 | US4789840 Integrated capacitance structures in microwave finline devices |
| 11/17/1988 | WO1988009088A1 Suspended stripline rat race mixer with simplified i.f. extraction |
| 10/26/1988 | EP0131633B1 Frequency converter |
| 10/25/1988 | US4780691 Dielectric resonator frequency discriminator for stabilizing oscillator frequency |
| 10/25/1988 | US4780667 Magnetostatic wave delay line discriminator with automatic quadrature setting and automatic calibration |
| 10/11/1988 | US4777654 Transmitter/receiver |
| 10/11/1988 | CA1243081A1 Simple mixer in planar congruently structure |
| 09/21/1988 | EP0283074A1 Microwave mixer |
| 09/06/1988 | US4769621 Frequency divider with darlington transistors |
| 08/09/1988 | CA1240368A1 Sis mixer having thin film wrap around edge contact |
| 07/13/1988 | EP0274073A2 Double balanced mixer |
| 07/05/1988 | US4755775 Microwave balun for mixers and modulators |
| 07/05/1988 | CA1238953A1 Mixer circuit |
| 06/14/1988 | US4751744 Monolithic distributed mixer |
| 05/11/1988 | DE3637827A1 Coplanar push-pull-type waveguide mixer |