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)
10/2003
10/23/2003US20030199271 Composite high frequency component and mobile communication device including the same
10/23/2003US20030198096 Semiconductor memory device
10/23/2003US20030197578 Bandpass filter unit and communication apparatus
10/23/2003US20030197575 Integrated circuit low noise amplifier and applications thereof
10/23/2003US20030197571 High-frequency magnetic ceramic and high-frequency circuit component
10/23/2003US20030197244 Multilayer intergrated circuit structure with reduced magnetic coupling
10/23/2003US20030196757 Method and apparatus for tuning an RF matching network in a plasma enhanced semiconductor wafer processing system
10/23/2003CA2482450A1 Circuit and method for adjusting circuit tolerances
10/22/2003EP1355420A2 Two-frequency band-pass filter, two-frequency branching filter and combiner
10/22/2003EP1354502A2 High frequency printed circuit board via
10/22/2003EP1354425A2 Filter arrangement
10/22/2003EP1354402A1 Integrated low-pass or band-pass filter
10/22/2003EP1354371A1 Integrated broadside coupled transmission line element
10/22/2003CN1451203A Receiver impedance calibration arrangements in full duplex communication system
10/21/2003US6637008 Electronic holding circuit and adjusting method thereof using a probabilistic searching technique
10/21/2003US6636128 Frequency-tunable notch filter
10/21/2003US6636085 Phase shifter with an RC polyphase filter
10/16/2003WO2003085848A1 Method and apparatus for combining two ac waveforms
10/16/2003WO2003085826A2 Switched transformer for adjusting power amplifier loading
10/16/2003US20030194984 Tunable phase shifter and applications for same
10/15/2003CN1448968A 陶瓷电子部件及其制造方法 The ceramic electronic component and its manufacturing method
10/14/2003US6633748 Composite high frequency component and mobile communication device including the same
10/14/2003US6633209 Filter
10/09/2003WO2003084295A2 Inductor and decoupling structures for filters and design method thereof
10/09/2003US20030192063 Digital interface unit apparatus and system
10/09/2003US20030189471 Bias feed network arrangement for balanced lines
10/08/2003EP1351400A2 Quad switched gain circuit
10/08/2003EP1351385A2 Compact lumped element dual highpass/lowpass balun layout
10/08/2003EP1351384A2 Bias feed network arrangement for balanced lines
10/08/2003EP1351382A2 Differential PIN diode attenuator
10/08/2003EP1350318A1 Filtering circuit and power supply device equipped with same
10/08/2003EP1350314A2 Harmonic matching network for a saturated amplifier
10/08/2003CN2579045Y Outdoor cable TV signal source transmission uninterrupted deriving device
10/08/2003CN1447525A BPF device
10/07/2003US6631195 Speaker attenuation for practicing a musical instrument
10/07/2003US6630874 Phase shifter and communication device using the same
10/07/2003CA2222649C Antenna coupler for a portable radiotelephone
10/02/2003WO2003081767A1 Circuit arrangement for shifting the phase of an input signal and circuit arrangement for suppressing the mirror frequency
10/02/2003WO2003081272A1 Combiner/splitter device for an mri system
10/02/2003US20030186674 High quality factor (Q) planar spiral inductor based CATV diplexer and telephony module
10/02/2003US20030186656 Method and apparatus for combining two AC waveforms
10/02/2003US20030184461 Differential pin diode attenuator
10/02/2003US20030184411 Monolithic LC filter with enhanced magnetic coupling between resonator inductors
10/02/2003US20030184408 Compact lumped element ring balun layout
10/02/2003US20030184405 Symmetric microwave filter and microwave integrated circuit merging the same
10/02/2003US20030184403 Compact lumped element dual highpass/lowpass balun layout
10/02/2003US20030184402 High-frequency filter device, filter device combined to a transmit-receive antenna, and wireless apparatus using the same
10/02/2003US20030184384 Voltage-limited distributed current source for ultra-broadband impedance termination
10/02/2003US20030184377 Quad switched gain circuit
10/02/2003US20030184312 Variable impedance network with coarse and fine controls
10/01/2003EP1349272A1 High frequency low-pass filter
10/01/2003EP1348253A2 GENERATING TWO SIGNALS HAVING A MUTUAL PHASE DIFFERENCE OF 90o
10/01/2003EP1166440B1 Transformer with compensation transmission line
10/01/2003CN2577422Y Improvement of harmonic distortion suppressor
10/01/2003CN1445926A Balance high frequency device, method for improving balance characteristic and balance high frequency circuit using the device
09/2003
09/30/2003US6628490 Circuit arrangement
09/30/2003US6628189 Laminated balun transformer
09/30/2003US6628181 Tuning circuit having a resonance circuit and a negative resistance circuit
09/30/2003US6628178 Radio frequency module parts including surface acoustic wave elements and manufacturing method thereof
09/30/2003US6628176 High-frequency input impedance matching circuit, high-frequency output impedance matching circuit and semiconductor integrated circuit
09/30/2003US6627021 Method of manufacturing laminated ceramic electronic component and method of manufacturing laminated inductor
09/25/2003WO2003079558A2 A device for coupling radio frequency energy from various transmission lines using variable impedance transmission lines
09/25/2003WO2003079406A2 Voltage-limited distributed current source for ultra-broadband impedance termination
09/25/2003CA2479173A1 A device for coupling radio frequency energy from various transmission lines using variable impedance transmission lines
09/24/2003EP1347573A1 Multiplexer
09/24/2003EP1347572A1 High-frequency amplifier
09/24/2003EP1346476A1 Method for transforming bandpass filters to facilitate their production and resulting devices
09/24/2003EP1050164B1 Catv power inserter
09/24/2003CN1122361C Method and apparatus for matching variable load impedance with RF power generator impedance
09/23/2003US6624728 Low-pass filter
09/23/2003US6624721 Apparatus for acquiring a signal from an intermediate point on a series impedance source terminated unidirectional transmission line
09/23/2003US6623845 Glass-ceramic composition, and electronic component and multilayer LC composite component using the same
09/18/2003WO2003026236A3 Adaptive equalizer which is independent of the amplitude of the transmited signal
09/18/2003US20030174660 Circuit arrangement for the analogue suppression of echos
09/17/2003EP1345323A1 Balanced high-frequency device and balance-characteristics improving method and balanced high-frequency circuit using the same
09/17/2003CN1443394A Generating two signals having mutual phase difference of 90 degree
09/17/2003CN1442929A Improved frequency selection of echoloss bridge direction
09/16/2003US6621879 Digital radio system, a digital radio device, and a quadrature demodulator
09/16/2003US6621467 Energy transfer in an electronic identification system
09/16/2003US6621400 Electronic part and a complex electronic device
09/16/2003US6621385 Bias feed network arrangement for balanced lines
09/16/2003US6621378 Filter
09/16/2003US6621376 Multiband matching circuit for a power amplifier
09/16/2003US6621372 Impedance matching device
09/16/2003US6621370 Method and system for a lumped-distributed balun
09/16/2003US6621144 Data receiver gain enhancement
09/16/2003US6619763 Feed-through filter capacitor with non-overlapping electrodes
09/11/2003US20030169128 Frequency-tunable notch filter
09/11/2003US20030168716 Device having inductors and capacitors and a fabrication method thereof
09/10/2003EP1343250A1 Continuous time integrato filter with minimum phase variation, passband Sigma-Delta modulator using this filter
09/10/2003EP1343249A2 Device having inductors and capacitors and a fabrication method thereof
09/10/2003CN1441548A Bidirectional low-pass filter suitable for communication network
09/09/2003US6618447 Multiple signal processing unit for utility wiring by receiver/LAN and utility wiring system by receiver/LAN
09/09/2003US6617949 Choke coil
09/09/2003US6617947 Tuning circuit
09/09/2003US6617941 Method for designing a filter system
09/08/2003CA2420364A1 Continuous-time and minimal phase variation integration filter, sigma delta modulator, band pass using such a filter
09/04/2003WO2003073608A1 Filter having parasitic inductance cancellation
09/04/2003WO2003073607A1 Mems-based, computer systems, clock generation and oscillator circuits and lc-tank apparatus for use therein
09/04/2003WO2003073550A1 Integration of filters using on-chip transformers for rf and wireless applications
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