Patents
Sitemap › H01 - Basic electric elements › H01P - Waveguides; Resonators, lines or other devices of the waveguide type › H01P 1 - Auxiliary devices
Patents for H01P 1 - Auxiliary devices (25,484)
04/1999
04/14/1999EP0907982A2 Integrated filter
04/14/1999EP0789938A4 An antenna control system
04/13/1999US5894252 Laminated ceramic electronic component with a quadrangular inner conductor and a method for manufacturing the same
04/13/1999US5894251 High frequency filter having saw and dielectric filters with different frequency temperature characteristic signs
04/13/1999US5894250 Cavity resonator filter structure having improved cavity arrangement
04/08/1999WO1999017394A1 Multi surface coupled coaxial resonator
04/08/1999WO1999017393A1 Strip transmission filter
04/07/1999EP0906658A1 Subharmonic frequency converter for applications to millimetric radio waves
04/07/1999EP0906657A1 Frequency converter for the application on millimetric radio waves
04/07/1999EP0742962B1 Transmission-line network
04/07/1999EP0679297B1 Device and method for tuning a band-pass filter
04/07/1999CN1213216A Microwave mixing circuit and down-converter
04/06/1999US5892419 Integral resonators for a filter and a method for manufacturing thereof
04/06/1999US5892415 Laminated resonator and laminated band pass filter using same
04/06/1999US5892412 Method of and an apparatus for tunable passive-gain equalization
04/01/1999WO1999016146A1 Antenna duplexer in waveguide, with no tuning bends
04/01/1999WO1999016089A1 Laminated ceramic parts
04/01/1999DE19842218A1 Dielectric filter for electronic device
03/1999
03/31/1999EP0905886A1 Magnetostatic wave device
03/31/1999EP0905885A1 Magnetostatic wave device
03/31/1999EP0905813A2 Polarisation filter for the illumination of an antenna
03/31/1999EP0905812A2 HF Module
03/31/1999EP0905811A1 Connection of two waveguides having linear polarisation
03/31/1999CN1212479A Nonreciprocal circuit device
03/31/1999CN1212478A Electric filter, duplexer, and communication system
03/31/1999CN1212470A Digital switch circuit in MOS technology
03/30/1999US5889449 Electromagnetic transmission line elements having a boundary between materials of high and low dielectric constants
03/30/1999US5889447 Ceramic filter with beveled surface
03/30/1999US5889402 Ferromagnetic resonance measuring cavity resonator and electron spin resonance measuring apparatus having same
03/30/1999US5888942 Telecommunications
03/30/1999CA2150657C Dual mode cavity for waveguide bandpass filters
03/25/1999WO1999014816A1 Method for producing resonator ceramic filters with characteristic impedance jumps
03/25/1999WO1999014815A1 Simultaneous polarization and frequency filtering of transmitter and receiver signals in single antenna systems
03/25/1999DE19842040A1 Dielectric filter e.g. for duplexer in cellular base station
03/24/1999EP0903802A2 Lumped element circulator
03/24/1999EP0903801A2 Nonreciprocal circuit device
03/24/1999EP0903800A2 High-frequency component
03/24/1999EP0902989A1 Plastic resonator support and resonator tuning assembly
03/24/1999EP0902988A1 A high frequency multi-port switching circuit
03/23/1999US5886986 Duplexer having dual coupled line characteristics
03/23/1999US5886671 Low-cost communication phased-array antenna
03/23/1999US5886594 Circular waveguide dual-mode filter
03/23/1999US5886593 Dielectric resonator device
03/23/1999US5885916 Molded window comprising low aluminum or aluminum-free silicon nitride sintered together with silicon oxide and a rare earth oxide; microwaves
03/17/1999EP0902495A2 Signal distributing/synthesizing apparatus
03/17/1999EP0901692A1 Method of tuning planar superconductive filters
03/17/1999EP0671049B1 Anisotropic microwave composite
03/16/1999US5883601 Plural slot antenna fed with dielectric strip and dielectric resonators
03/16/1999US5883565 Frequency dependent resistive element
03/16/1999US5883554 Coaxial resonator having coupling electrodes and dielectric filter formed therefrom using the same
03/16/1999US5883553 Filter unit adapted for miniaturization and for selecting a particular signal where a plurality of signals different in bandwidth coexist
03/11/1999WO1999012229A1 Electronically scanned ferrite line source
03/11/1999WO1999012225A1 Multimodal dielectric resonance device, dielectric filter, composite dielectric filter, synthesizer, distributor, and communication apparatus
03/11/1999WO1999012224A1 Multi-mode dielectric resonance devices, dielectric filter, composite dielectric filter, synthesizer, distributor, and communication equipment
03/10/1999EP0900453A1 Resonators for high power high temperature superconducting devices
03/10/1999CN2310391Y Distributed parameter type band-reject and band-pass diplexer
03/09/1999US5880656 Plane type strip line filter in which strip line is shortened and dual mode resonator in which two types microwaves are independently resonated
03/09/1999US5880652 Stripline filter with stripline resonators of varying distance therebetween
03/09/1999US5880650 Dielectric resonator for a microwave filter, and a filter including such a resonator
03/09/1999US5880649 Multilayered frequency separator
03/09/1999US5879824 Magnetostatic wave device and material for the same
03/04/1999WO1999010947A1 Waveguide filter
03/04/1999WO1998054783A3 Filter tuning device and tuning plate including a number of such devices
03/03/1999EP0899808A2 Dual mode cavity resonator with coupling grooves
03/03/1999EP0899807A2 Coupling mechanism for TE011 and TE01delta mode resonators
03/03/1999EP0899806A2 Dielectric filter, duplexer, and communication system
03/02/1999US5877663 Microwave waveguide for tank level sensors
03/02/1999US5877660 Phase shifting device with rotatable cylindrical case having driver means on the end walls
03/02/1999US5877659 90° phase shifter apparatus and method using a directly coupled path and a switched path
03/02/1999US5877123 Filter for electromagnetic waves
03/02/1999US5876539 Fabrication of ferrite toroids
02/1999
02/25/1999DE19736367A1 Waveguide filter for HF power amplifier
02/24/1999EP0898323A2 Polarisation branch for two different frequency bands
02/24/1999EP0898322A2 Dielectric waveguide line and its branch structure
02/24/1999EP0897601A1 Coplanar waveguide coupler
02/24/1999EP0897599A1 Apparatus for blocking a d.c. component of a signal
02/24/1999CN1209002A Circuit for transmitting/receiving signals
02/24/1999CN1208971A Diode limiter device
02/23/1999US5874872 Filter
02/23/1999US5874871 Mounting of dielectric resonators
02/23/1999US5874870 Dielectric resonator device with an opening covered by a printed circuit board and a conductive plate contacting the printed circuit board
02/17/1999EP0897197A2 Polarisation branch for two different frequency bands
02/17/1999EP0896744A1 Dual mode microwave band pass filter made of high quality resonators
02/17/1999CN1208260A Microwave component
02/17/1999CN1208259A Microwave component
02/16/1999US5872550 Compressible coaxial interconnection with integrated environmental seal
02/16/1999US5872491 Switchable N-way power divider/combiner
02/16/1999CA2027655C Lightning protection apparatus for rf equipment and the like
02/10/1999EP0896382A2 Microwave component
02/10/1999EP0896381A2 Microwave component
02/10/1999EP0896380A2 Dielectric waveguide
02/10/1999CN1207592A Dielectric filter and mfg. method thereof
02/09/1999US5870006 Dielectric filter
02/09/1999US5869429 Critical temperature single crystal ferroelectric coplanar waveguide
02/03/1999EP0895298A1 Antenna with circular polarisation in one sense
02/03/1999EP0895289A2 Digital circuit in MOS Technology
02/02/1999US5867077 Temperature compensated microwave filter
02/02/1999US5867076 Dielectric resonator and dielectric resonant component having stepped portion and non-conductive inner portion
01/1999
01/28/1999DE19726384A1 HF signal absorber with several line sections
01/28/1999CA2242714A1 Unidirectional circularly polarized antenna
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