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Class Information
Number: 455/328
Name: Telecommunications > Receiver or analog modulated signal frequency converter > Frequency modifying or conversion > Particular frequency conversion structure or circuitry > Including distributed electrical parameter structure > With balanced mixer > Hollow waveguide
Description: Subject matter in which the distributed electrical parameter structure is a transmission line comprising a hollow conducting tube.


Patents under this class:
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Patent Number Title Of Patent Date Issued
7471658 Adaptive control of transmission procedures Dec. 30, 2008
7454187 Home agent system Nov. 18, 2008
7363018 High speed electrical interconnect using an optically distributed carrier signal Apr. 22, 2008
7209758 Method and system for sharing and/or centralizing mobile positioning information and geospatial data for roaming mobile subscriber terminals Apr. 24, 2007
7072636 Printed circuit doubly balanced mixer for upconverter Jul. 4, 2006
7068118 Pulse modulator for nonradiative dielectric waveguide, and millimeter wave transmitter/receiver using the same Jun. 27, 2006
7006837 Electronic apparatus Feb. 28, 2006
6993312 Double balanced diode mixer with high output third order intercept point Jan. 31, 2006
6947451 Network layer support to enhance the transport layer performance in mobile and wireless environments Sep. 20, 2005
6931246 Line coupling structure, mixer, and receiving/transmitting apparatus comprised of suspended line and dielectric waveguide Aug. 16, 2005
6871056 Non-radiative dielectric waveguide mixer using a ring hybrid coupler Mar. 22, 2005
6832081 Nonradiative dielectric waveguide and a millimeter-wave transmitting/receiving apparatus Dec. 14, 2004
6810241 Microwave diode mixer Oct. 26, 2004
6788918 Transmission line assembly, integrated circuit, and transmitter-receiver apparatus comprising a dielectric waveguide protuding for a dielectric plate Sep. 7, 2004
6427069 Balanced all-wavelength sub-millimeter microwave subharmonic mixer Jul. 30, 2002
6301464 Satellite broadcasting converter Oct. 9, 2001
6198912 Frequency converter for the application on millimetric radio waves Mar. 6, 2001
5987315 Diode circuit in dielectric waveguide device, and detector and mixer using the diode circuit Nov. 16, 1999
5959592 "IF" bandstacked low noise block converter combined with diplexer Sep. 28, 1999
5953644 Microwave transmission system Sep. 14, 1999
5794135 Millimeter wave mixer realized by windowing Aug. 11, 1998
5640700 Dielectric waveguide mixer Jun. 17, 1997
5265268 Image recovery mixer Nov. 23, 1993
5142698 Microwave integrated apparatus including antenna pattern for satellite broadcasting receiver Aug. 25, 1992
5125111 Resistive planar ring double-balanced mixer Jun. 23, 1992
5119509 Low noise block down converter (LNB) for the simultaneous receipt of C/Ku-band satellite-broadcasting Jun. 2, 1992
5062149 Millimeter wave device and method of making Oct. 29, 1991
5029235 Compressive receiver Jul. 2, 1991
4991228 Microwave converter Feb. 5, 1991
4955079 Waveguide excited enhancement and inherent rejection of interference in a subharmonic mixer Sep. 4, 1990
4803446 Low noise microwave amplifier Feb. 7, 1989
4777654 Transmitter/receiver Oct. 11, 1988
4742571 Coupling device between a metal wave guide, a dielectric wave guide and a semiconductor component and a mixer using this coupling device May. 3, 1988
4734667 Arrangement for coupling waveguide modes between two waveguides via a semiconductor element Mar. 29, 1988
4727595 Local oscillator feed for mixer array Feb. 23, 1988
4691380 Quad-ridge waveguide mixer Sep. 1, 1987
4679249 Waveguide-to-microstrip line coupling arrangement and a frequency converter having the coupling arrangement Jul. 7, 1987
4661999 Microwave push-pull frequency converter Apr. 28, 1987
4661997 Mixer for use in a microwave system Apr. 28, 1987
4654888 Image suppression mixer of the waveguide type Mar. 31, 1987
4641369 Local oscillator and mixer assembly Feb. 3, 1987
4627104 Mixer Dec. 2, 1986
4613989 Police radar warning receiver Sep. 23, 1986
4608713 Frequency converter Aug. 26, 1986
4596047 Satellite broadcasting receiver including a parabolic antenna with a feed waveguide having a microstrip down converter circuit Jun. 17, 1986
4590617 Hermetically sealed planar structure for high frequency device May. 20, 1986
4571593 Horn antenna and mixer construction for microwave radar detectors Feb. 18, 1986
4553266 R.F. Circuit arrangement Nov. 12, 1985
4553265 Monolithic single and double sideband mixer apparatus Nov. 12, 1985
4547901 Microwave receiving apparatus using a waveguide filter Oct. 15, 1985

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