Patents
Patents for H03H 7 - Multiple-port networks comprising only passive electrical elements as network components (15,104)
06/2005
06/14/2005US6906411 Multilayer substrate module and portable wireless terminal
06/09/2005WO2004100366A3 Lc resonant circuit with amplification device
06/09/2005US20050122187 Branching filter package
06/09/2005US20050121723 Nonlinear resistor circuit using floating gate mosfets
06/09/2005DE10351898A1 Empfängeranordnung mit mindestens zwei an eine gemeinsame Antenne angeschlossenen Empfängern und Verfahren zur Steuerung derselben Receiver array with at least two connected to a common antenna receivers and method for controlling the same
06/08/2005EP1538746A2 Balun device
06/08/2005EP1538641A2 Electric component and circuit arrangement
06/08/2005EP1537657A1 Device comprising two mutually adapted impedances for the purpose of power transmission
06/08/2005EP1537656A2 Improved electromagnetic interference filter
06/08/2005EP1537655A1 Multiple resonance filter
06/08/2005CN1625844A Transmitter and/or receiver module
06/08/2005CN1625045A Balun device
06/08/2005CN1625044A Filter and manufacturing method thereof
06/08/2005CN1205747C RF circuit
06/08/2005CN1205690C Multi-layer LC composite unit and regulating method for its frequency characteristic
06/07/2005US6903679 Video amplifier for a radar receiver
06/07/2005US6903628 Lowpass filter formed in multi-layer ceramic
06/07/2005US6903612 Tunable low noise amplifier
06/02/2005WO2005050835A1 Method for adapting an amplitude characteristic of a band-pass filter and corresponding band-pass filter
06/02/2005US20050119026 Cellular phone capable of receiving a plurality of broadcast waves
06/02/2005US20050116796 Electronically tunable combline filters tuned by tunable dielectric capacitors
06/02/2005US20050116793 Thin-film common mode filter and thin-film common mode filter array
06/02/2005US20050116788 Coupler, integrated electronic component and electronic device
06/02/2005US20050116787 Balun
06/02/2005US20050116711 Combiner/splitter device for an mri system
06/01/2005EP1536558A1 Balun
06/01/2005EP1536557A1 Intermediate frequency circuit
06/01/2005EP1536513A1 Cellulare phone capable of receiving a plurality of broadcast waves
06/01/2005CN1622480A Cellular phone capable of receiving a plurality of broadcast waves
06/01/2005CN1622452A Balun
06/01/2005CN1622233A Thin-film common mode filter and thin-film common mode filter array
06/01/2005CN1204775C Frequency matching device for mobile system
06/01/2005CN1204683C Multi-layer LC filter
05/2005
05/31/2005US6900708 Integrated passive devices fabricated utilizing multi-layer, organic laminates
05/31/2005US6900706 Compact balun with rejection filter for 802.11a and 802.11b simultaneous operation
05/31/2005US6900705 Balanced high-frequency device and balance-characteristics improving method and balanced high-frequency circuit using the same
05/31/2005US6898846 Method and components for manufacturing multi-layer modular electrical circuits
05/26/2005WO2005048451A1 Communication transformer
05/26/2005WO2005036567A9 Stand-alone organic-based passive devices
05/25/2005EP1533911A1 Transmitting/receiving filter device and communication device
05/25/2005EP1533863A1 An Active Antenna
05/25/2005EP1532736A1 Methods and apparatus for tuning using successive aproximation
05/25/2005EP1176908B1 Lead set filter for a patient monitor
05/25/2005CN1620754A Improved quadrature hybrid and improved vector modulator in a chip scale package using same
05/25/2005CN1619952A Design of cross coupling in filter and its preparation method
05/25/2005CN1619882A Active antenna with amplifier
05/25/2005CN1203576C Antenna
05/25/2005CN1203569C Broadband tap using impedance transformer extracting energy from transmission line
05/24/2005US6897704 Electronic isolator
05/19/2005WO2005045367A1 Noise filter and sensor circuit
05/19/2005WO2004095695A3 Tunable bridge circuit
05/19/2005US20050107044 Active antenna with amplifier
05/19/2005US20050107042 Transmitter and/or receiver module
05/19/2005US20050104691 Isolation of miniature filters
05/19/2005US20050104683 High temperature superconducting structures and methods for high Q, reduced intermodulation structures
05/19/2005US20050104680 Variable matching circuit, variable resonance circuit, variable phase-shifting circuit and variable attenuation circuit each having variable-capacitance capacitor
05/19/2005DE29724889U1 Multiswitch branching device for satellite receiver system, has manually operated changeover device inside housing that can change voltage signals between at least two defined values depending on connected low noise converters
05/17/2005US6895262 High temperature superconducting spiral snake structures and methods for high Q, reduced intermodulation structures
05/17/2005US6895228 High frequency low-pass filter
05/17/2005US6894956 Multimode filter
05/17/2005US6894585 High quality factor (Q) planar spiral inductor based CATV diplexer and telephony module
05/12/2005WO2008042100A2 Harmonic phase tuning filter for rf switches
05/12/2005WO2005043750A1 Electromagnetic delay line inductance element
05/12/2005WO2005043678A1 Receiving loop antenna
05/12/2005US20050099241 Distributed balun with a non-unity impedance ratio
05/11/2005EP1530250A1 Receiving system with at least two receivers connected to a common antenna and method of controlling the same
05/11/2005EP1490978A4 Method and apparatus for combining two ac waveforms
05/11/2005EP1338096B1 Method of channel frequency allocation for rf and microwave duplexers
05/11/2005CN1614885A Wave filtering method and apparatus
05/11/2005CN1201551C 阻抗阻塞滤波器电路 An impedance blocking filter circuit
05/10/2005US6891449 Antenna duplexer
05/10/2005US6891448 Compact balun for 802.11a applications
05/10/2005US6891412 Low noise filter
05/06/2005WO2005041623A2 Plasma processing apparatus, control method for plasma processing apparatus, and evaluation method for plasma processing apparatus
05/06/2005WO2005041406A1 Electromagnetic delay line inductance element
05/06/2005WO2004019491A3 Circuit consisting of a filter stage and a balancing structural member
05/05/2005US20050095998 Tunable matching circuit
05/05/2005US20050095791 Integration of filters using on-chip transformers for rf and wireless applications
05/05/2005US20050093651 Noise filter, outdoor unit and air conditioner
05/05/2005US20050093645 Impedance circuit, and filter circuit, amplifier circuit, semiconductor integrated circuit, electronic component, and wireless communications device using the same
05/05/2005US20050093644 Interpolating programmable gain attenuator
05/05/2005US20050093643 Interpolating programmable gain attenuator
05/05/2005US20050093606 High-resolution variable attenuation device
05/05/2005US20050093604 Apparatus and method for generating a phase delay
05/04/2005CN1613125A Noise filter, outdoor unit, and air conditioner
05/04/2005CN1612474A Composite channel splitting circuit, chip element using same, high-frequency model and wireless communication apparatus
05/04/2005CN1612470A Multi-layer ceramic material layer built in balance-to-unbalance converter
05/03/2005US6888428 High frequency semiconductor integrated circuit capable of switching between characteristics
05/03/2005US6888423 Electronic filter assembly
05/03/2005US6888422 Continuously variable filter
05/03/2005US6888419 Variable attenuator device having substantially constant impedance
05/03/2005US6888313 Impedance matching network with termination of secondary RF frequencies
04/2005
04/28/2005WO2004088642A3 Frequency shaping stream signal processor
04/28/2005US20050089089 System and method for selecting precursor equalizer coefficients and serializer deserializer incorporating the same
04/28/2005US20050088256 Ferrite choke
04/26/2005US6885353 Variable type antenna matching circuit
04/26/2005US6885341 Inverted-F ferroelectric antenna
04/26/2005US6885263 Tunable ferro-electric filter
04/26/2005US6885260 Filter using film bulk acoustic resonator and transmission/reception switch
04/21/2005WO2005036741A1 Noise prevention coil circuit