Patents
Sitemap › H03 - Basic electronic circuitry › H03H - Impedance networks, e.g. resonant circuits; Resonators › H03H 7 - Multiple-port networks comprising only passive electrical elements as network components
Patents for H03H 7 - Multiple-port networks comprising only passive electrical elements as network components (15,104)
09/1999
09/10/1999WO1999045643A2 Low-pass filter for a diplexer
09/09/1999DE19906825A1 Radiation noise blocking arrangement, esp. for electrical cables connected to digital equipment
09/08/1999CN1228207A Receiver and filter arrangement comprising polyphase filters
09/07/1999US5949304 Multilayer ceramic package with floating element to couple transmission lines
09/07/1999US5949299 Multilayered balance-to-unbalance signal transformer
09/02/1999WO1999044256A1 Balancing apparatus for signal transmissions
09/01/1999EP0939413A1 Dieletric ceramic composition and ceramic electronic element using the same
09/01/1999CN1227678A Method and apparatus for matching a variable load impedence with an RF power generator impedance
08/1999
08/31/1999US5945899 Permanent magnet twister
08/31/1999US5945892 LC resonating component and method of making same
08/24/1999US5942951 Method and apparatus for reducing a noise differential in an electronic circuit
08/19/1999WO1999041843A2 Transmitting/receiving station having impedance-matched receiving means for transponder answer signals
08/19/1999WO1999041832A1 Passive component integrated circuit chip
08/18/1999CN1226106A Mobile radio telephone
08/17/1999US5939955 Assembly of inductors wound on bobbin of encapsulated electrical components
08/17/1999US5939954 Equivalent circuit of package ground terminal paddle
08/17/1999US5939953 E-H matching device and apparatus and method for automatically matching microwave impedance
08/10/1999US5936486 Active filter with surface acoustic wave resonator filter having multiple resonant modes
08/10/1999US5936481 System for impedance matching and power control for apparatus for high frequency plasma treatment
08/04/1999EP0933932A1 Intermediate-frequency output circuit
08/04/1999EP0677221B1 Method and arrangement for tuning a combiner filter
08/03/1999US5933071 Communications apparatus
08/03/1999US5932950 Surface acoustic wave filter
07/1999
07/29/1999WO1999038323A1 Catv power inserter
07/29/1999WO1999038256A1 Passive programmable wide-range filter
07/29/1999WO1999038248A1 Ac power converter
07/28/1999EP0932274A1 Multiple signal processing unit for utility wiring by receiver/lan and utility wiring system by receiver/lan
07/28/1999EP0932255A2 MCM with high Q overlapping resonator
07/28/1999EP0932216A1 High-frequency composite unit
07/28/1999CN1224276A Circuit arrangement for switching and adjusting mutual parallel frequency range filter branch
07/27/1999US5929750 Transmission network and filter therefor
07/27/1999US5929729 Printed lumped element stripline circuit ground-signal-ground structure
07/27/1999US5929722 Low-pass filter laminated with a power detection coil
07/27/1999US5929719 Shielded cable with in-line attenuator
07/22/1999WO1999037008A1 Paired multi-layered dielectric independent passive component architecture resulting in differential and common mode filtering with surge protection in one integrated package
07/22/1999WO1999037007A1 Power conditioning circuit
07/20/1999US5926466 Time division multiple access FDD wireless unit and time division multiple access FDD/TDD dual mode wireless unit
07/15/1999WO1999035838A1 Catv passive component with rf splitter and power adding/removal port
07/15/1999WO1999035740A1 Artificial line
07/15/1999DE19857428A1 Electric filter with symmetrical, approximately rectangular characteristic
07/15/1999CA2315075A1 Artificial line
07/14/1999EP0929151A2 Filter
07/14/1999EP0928517A1 Coaxial bushing filter
07/14/1999EP0928516A1 Coaxial bushing filter
07/13/1999US5923237 Wirewound-chip balun transformer
07/13/1999US5923230 Meander delay line having delay-time peaks which are a function of frequency
07/13/1999US5923227 For producing pulsed radio frequency electrical signals
07/13/1999US5923077 Passive component integrated circuit chip
07/08/1999WO1999034507A1 Filter arrangement
07/08/1999CA2316336A1 Filter arrangement
07/07/1999CN1222007A SW multiradio share antenna isolating coupling system
07/06/1999US5920241 Passive temperature compensating LC filter
07/06/1999US5920239 Multiple dwelling unit tap off including an equalizer circuit
07/01/1999WO1999033174A1 Transmission circuit having an inductor-assisted termination
07/01/1999WO1999033138A1 Rf three-way combiner/splitter
07/01/1999WO1999021274A3 Integrated electronic circuit comprising an oscillator with passive circuit elements
06/1999
06/30/1999EP0926933A1 Multilayer high frequency electronic components
06/30/1999EP0925646A1 Transmission or delay line transformers
06/29/1999US5917867 Method and apparatus for DC compensation
06/29/1999US5917856 Method for establishing a PAM signal connection using a training sequence
06/29/1999US5917387 Filter having tunable center frequency and/or tunable bandwidth
06/29/1999US5917302 Harmonic current attenuating device of a motor
06/24/1999WO1998059472A3 Filter method and apparatus for combined multiple frequency signals
06/23/1999EP0924865A2 Antenne impedance transformer for a mobile radio transceiver
06/23/1999EP0924855A2 Matching circuit chip, filter with matching circuit, duplexer and cellular phone
06/22/1999US5915223 Multimode radiotelephone
06/22/1999US5914695 Omnidirectional dipole antenna
06/22/1999CA2122172C Autotransformer for the transmission of baseband video
06/17/1999WO1999030430A1 Fixed wireless loop system having baseband combiner predistortion summing table
06/17/1999WO1999018629A3 Microwave filter and method for fabricating microstrip band pass filter
06/16/1999EP0923212A2 Bus coupler
06/16/1999CN2324705Y Flat compensator
06/16/1999CA2224953A1 A low voltage topology for radio frequency integrated circuit design
06/15/1999US5912599 Bandwidth compensated bridged-tee attenuator
06/10/1999WO1999029038A1 Device for separating rf signals
06/09/1999EP0921715A1 PCB for mounting RF band pass filter and method of manufacture
06/08/1999US5910755 Laminate circuit board with selectable connections between wiring layers
06/08/1999US5910729 Variable wave impedance generator for testing electric and magnetic field calibration of electronic equipment
06/03/1999WO1999027648A1 Broadband phase-shifting circuit
06/03/1999WO1999014072A3 Massage controller module (mcm)
06/02/1999EP0920128A2 Impedance stabilizing unit and high-frequency module using the unit
06/02/1999EP0856205B1 Coaxial cable distribution housing
06/02/1999CN1218334A Scalable stereo audio encoding/decoding method and apparatus
06/01/1999US5909155 Module for containing a circuit for performing discrete circuit function
06/01/1999US5909132 Resistance bridge and its use in conversion systems
05/1999
05/27/1999WO1999026311A1 Compact antenna feed circuits
05/26/1999EP0918407A2 Scalable stereo audio encoding/decoding method and apparatus
05/26/1999CN2321167Y Magnetic ring filter for power supply
05/25/1999US5907242 Balanced passive bandpass filter and preamplifier for a receiver
05/20/1999DE19749903A1 Active electric device with electric supply for operation in examination area of nuclear spin tomography appts.
05/19/1999EP0917287A2 Composite filter and radio communication apparatus using the filter
05/19/1999EP0916185A1 Dual-band multilayer bandpass filter
05/18/1999US5905757 Filter co-processor
05/18/1999US5905449 Radio switching apparatus
05/18/1999US5905418 Surface-acoustic-wave filters with poles of attenuation created by impedance circuits
05/18/1999US5905417 Passive cascaded low-pass and high-pass filter with variable attenuation
05/05/1999CN1215946A Wave damper tuning circuit design method and wave damper tuning circuit
04/1999
04/29/1999WO1999021274A2 Integrated electronic circuit comprising an oscillator with passive circuit elements
04/29/1999DE19752206C1 Wideband phase shift circuit for IQ modulator
04/28/1999EP0911966A2 Composite filter and radio equipment using the same
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