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)
07/2003
07/09/2003CN1114314C Multi-tap radio frequency modulator
07/08/2003US6590538 Antenna apparatus
07/08/2003US6590475 Filter, antenna duplexer, and communication apparatus incorporating the same
07/08/2003US6590469 High frequency, large bandwidth balun and method of manufacturing
07/08/2003CA2279538C Passive analog filter for network interface
07/03/2003WO2003055065A1 Coupler, integrated electronic component and electronic device
07/03/2003WO2003055064A1 Analogue system of generating quadrature signals
07/03/2003WO2003054940A1 Plasma treatment apparatus, matching box, impedance matching device, and coupler
07/03/2003US20030125910 Method and system for implementing a gaussian white noise generator for real time speech synthesis applications
07/03/2003US20030124996 Tuner comprising a selective filter
07/03/2003US20030124984 Triplexer and multilayered structure thereof
07/03/2003US20030123535 Method and system for determining filter gain and automatic gain control
07/03/2003US20030122056 Variable resistance circuit, operational amplification circuit and semiconductor integrated circuit
07/02/2003EP1324485A2 Frequency downconverter for orthogonally polarised waves
07/02/2003EP1323237A1 SYSTEM FOR EIGHT-PHASE 45o POLYPHASE FILTER WITH AMPLITUDE MATCHING
07/02/2003CN1427503A Double-band coupler
07/02/2003CN1113478C Integrated receiver
07/02/2003CN1113460C Attenuator
07/01/2003US6587020 Multilayer LC composite component with ground patterns having corresponding extended and open portions
07/01/2003US6587019 Dual directional harmonics dissipation system
07/01/2003US6587018 Notch filter and method
07/01/2003US6587017 Method and apparatus for calibrated phase-shift networks
06/2003
06/26/2003WO2003052930A1 Filter circuit
06/26/2003US20030120484 Method and system for generating colored comfort noise in the absence of silence insertion description packets
06/26/2003US20030117814 Noise filter
06/26/2003US20030117235 Electronic filter assembly
06/26/2003US20030117234 Multilayer LC filter with improved magnetic coupling characteristics
06/26/2003US20030117231 Switched power combiner with adjustable impedance-matching transformer
06/26/2003US20030117230 Dual band coupler
06/26/2003US20030117227 Spiral balun
06/26/2003US20030117201 Quadrature signal generation with phase error correction
06/26/2003US20030116810 Programmable impedance control circuit
06/25/2003EP1322038A1 Broadband phase shifter
06/24/2003US6584149 Block-mode equalization for data communications
06/24/2003US6583687 Lamination type LC filter
06/24/2003US6583686 LC-included electronic component
06/24/2003US6583685 Antenna arrangement
06/19/2003US20030112768 Duplexer with a differential receiver port implemented using acoustic resonator elements
06/19/2003US20030112579 Thin irreversible circuit element provided with capacitors
06/19/2003US20030112115 Multi-layered inductance element
06/19/2003US20030112094 Surface acoustic wave duplexer and portable communication device using the same
06/19/2003US20030112093 Non-interruptible tap
06/18/2003EP1320109A1 Multi-layered inductance element
06/18/2003CN1425183A Noise filter and electronic device using noise filter
06/18/2003CN1111924C Receiver
06/12/2003WO2003049288A1 Balun transformer and transceiver
06/12/2003WO2003049287A1 Method and apparatus for determining system response characteristics
06/12/2003WO2003049286A1 Analog bandpass filter
06/12/2003WO2003049225A1 Bandwidth directional coupler
06/12/2003US20030107455 Integrated ceramic module and microwave dielectric composition
06/12/2003US20030107450 Circuit for receiving an AC coupled broadband signal
06/12/2003CA2468918A1 Analog bandpass filter
06/10/2003US6578202 Signal splitter for cable TV
06/10/2003US6577269 Radar detection method and apparatus
06/10/2003US6577208 Radio frequency filter
06/10/2003US6577205 High-frequency filter device, filter device combined to a transmit-receive antenna, and wireless apparatus using the same
06/10/2003US6577199 Harmonic matching network for a saturated amplifier
06/10/2003US6577155 Apparatus and method for impedance control
06/05/2003WO2003047096A1 Compensation circuit for frequency filters
06/05/2003US20030104917 Glass and (Zn2TiO4)x (ZnTiO3)(1-x) (TiO2)y, wherein x is between 0 and 1 and y is between 0 and .5, including 0; ceramic capacitors; LC filters.
06/05/2003US20030102939 Droop compensation filter
06/05/2003US20030102932 Impedance matching circuit with automatic adjustment and method thereof
06/04/2003EP1317065A1 Pi/2 phase shifter
06/04/2003CN1421995A Tuner containing selective wave filter
06/04/2003CN1110893C Electric component assemblies and method of making same
06/03/2003US6574647 Filter arrangement
06/03/2003US6573811 Resistor tuning network and method for microelectronic RC-based filters
06/03/2003US6573802 Single-ended to differential and differential to single-ended conversion using a common mode shunt
06/03/2003US6572287 Assembly of an impedance transformer and a balun transformer
05/2003
05/30/2003WO2003045043A1 High performance micro-filter and splitter apparatus
05/29/2003US20030098696 Method and apparatus for determining system response characteristics
05/28/2003EP1315295A1 Tuner comprising a selective filter
05/28/2003EP1315231A2 Dielectric ceramic composition and laminated ceramic parts using the same
05/28/2003CN1421069A 天线放大器 Antenna Amplifier
05/28/2003CN1420670A Mobile radio device
05/28/2003CN1420637A Passive device and module of transceiver
05/28/2003CN1420618A Circuit for controlling motor of pulsator washer
05/28/2003CN1110124C Receiving mixer circuit for mobile radio transceiver
05/28/2003CN1110096C LC element, semiconductor device, and mfg. method of LC element
05/27/2003US6570916 Adaptive equalization circuit and method
05/27/2003US6570465 Multi-tap kit for cable television systems
05/27/2003US6570462 Adaptive tuning device and method utilizing a surface acoustic wave device for tuning a wireless communication device
05/27/2003US6570412 Filter characteristic regulating apparatus and regulating method therefor
05/27/2003US6568054 Method of producing a multilayer electronic part
05/22/2003WO2003043207A1 Impedance matching circuit for a multi-band radio frequency device
05/22/2003US20030096583 Mobile radio apparatus
05/22/2003US20030095016 Multilayer LC composite component
05/21/2003EP1313144A2 Passive devices and modules for transceiver
05/21/2003EP1312132A1 Combline filters with tunable dielectric capacitors
05/21/2003EP1135854B1 Low pass for an adsl diplexer
05/21/2003EP0799525B1 Unbalanced to balanced signal line coupling device
05/21/2003CN1419338A Duplexer and high-frequency switch and antenna sharing device structured adopting same
05/20/2003US6567519 System and method for processing an input signal communicated on a telephone line
05/20/2003US6566975 Wiring board having parallel transmission lines to transmit equivalent signals in parallel
05/15/2003WO2003041272A1 Integrated balun and transformer structure
05/15/2003US20030093811 Bandwidth directional coupler
05/15/2003US20030092397 Diplexer, and high-frequency switch and antenna duplexer using the same
05/15/2003US20030092388 Impedeance matching circuit for a multi-band radio frequency device
05/15/2003US20030090882 Passive devices and modules for transceiver
05/15/2003US20030090339 Digitally controllable integrated filter circuit for high frequency application
1 ... 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 ... 152