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Patent Searching and Data


Matches 401 - 450 out of 4,787

Document Document Title
WO/1999/018629A2
A microwave filter which is used for implementing a band filtering with respect to a microwave signal of a predetermined band for various portable mobile communication products including a cellular phone, a GPS (Global Positioning System...  
WO/1999/016089A1
Laminated ceramic parts composed of an inner conductor layer and a ceramic layer sintered simultaneously with each other, wherein the inner conductor layer is made of a conductor material comprising silver as a main component and the cer...  
WO/1999/014816A1
The present invention relates to a method for producing a ceramic filter with characteristic impedance jumps, wherein at least two preforms (10, 11) made of ceramic materials having different dielectrics ($g(e)¿r1?, $g(e)¿r2?) are arra...  
WO/1999/012223A1
The invention relates to a method and an apparatus for making an air gap (L, l¿a?) over at least one conductor (5, 5a) on a printed circuit board (1), minimizing the losses in the conductor (5, 5a). The well known Sequential Build Up (S...  
WO/1998/047331A1
A wiring board provided with a line (1), a shield pattern (2) formed in parallel with the line (1), a conductor layer (4) formed so as to face the line (1) and the shield pattern (2) through an insulating layer (3), a conductor layer (6)...  
WO/1998/042486A1
A method of reproducing a millimeter or submillimeter wavelength device including forming a master (2) of the millimeter or submillimeter wavelength device, forming at least one mold (20) from the master (2), and forming at least one rep...  
WO/1998/033229A1
A dielectric resonator which has a dielectric substrate formed with electrodes on both front and back surfaces, with at least one of the electrodes being constituted of a thin film multilayer electrode made by alternately stacking thin f...  
WO/1998/019858A1
A circuit comprising a microstrip conductor (101, 102) is manufactured from silver having a protective layer (103) of copper. During manufacture, a ceramic substrate (104) is cleaned and a ground plane (106), and a through via (107) are ...  
WO/1998/002935A1
A ground plane interconnection is provided on first and second substrates (100, 112), the first and second substrates (100, 112) having respective first and second ground layers (110, 118) disposed on a first surface of each of the first...  
WO/1997/048146A1
The application describes a ceramic filter as well as a method of manufacturing same. Such filters comprise at least two stripline resonators in the form of printed metal layers which, during operation of the filter, are electromagnetica...  
WO1997030488A3  
WO/1997/036342A1
The present invention relates to a mounting device (31) for mounting at least one microwave resonator (20) in a dielectric resonance filter (1). The outer contours of the mounting device (31) are adapted with respect to shape and size su...  
WO/1997/034317A1
A method of manufacturing a semiconductor device with a substrate (1) provided with a passive element (2), a pattern of conductors (3, 4), and a semiconductor element (5) which is formed in a small slice (6) of semiconductor material. Th...  
WO/1997/030488A2
The waveguide structure is fabricated by patterning active elements on a semiconductor wafer (21). The upper surface of the wafer (21) and the active elements are then coated by a dissolvable positive resist polymer. The polymer is etche...  
WO/1997/025753A1
The invention concerns a method of manufacturing a cavity resonator (1) including assembling electrically conductive resonator wall sections (2) into a closed, cavity defining structure. The wall sections are shaped such that joints (at ...  
WO/1997/008773A1
A dielectric filter for use in various communication equipment, a production method therefor, and a package member obtained by packaging the filter, for preventing peel of an end portion of an electrode. The filter has a construction whe...  
WO/1997/005669A1
A method of preparing an article of manufacture of a superconductive waveguide (100) and transmission line (104). The method includes preparing a mixture of superconductive material constituents, disposing the constituents on a silver co...  
WO/1996/041395A1
Internal launch apertures or holes (18) are formed in the internal housing assembly walls (24, 26) of a microwave assembly (10) using an electric discharge machine (21). The internal launch apertures (18) provide a signal path through th...  
WO/1996/029754A1
A dielectric resonator filter operating in a magnetic dipole mode includes a plurality of dielectric resonators disposed in a plurality of dielectric resonator cavities. A plurality of coupling mechanisms provide an in-line coupling fact...  
WO/1995/010861A1
A plurality of dielectric sheets are laminated and bonded integrally to constitute a laminated substrate. A plurality of belt-like resonance electrodes are formed in parallel on predetermined bond surfaces of the dielectric sheets, and b...  
WO/1995/009451A1
A multi-filter device comprising a ceramic block (10) having at least two filters (A and B). Both filters (A and B) include a notch (11 and 13, respectively) formed on one side of the ceramic block (10), such that these notches are flank...  
WO1995000979A3  
WO/1995/000979A2
A dielectric/conductive waveguide (20) includes a dielectric housing (22) having a longitudinal axis (14) and a central channel (29). A conductive layer (24, 25) is affixed to the inner surface (21) and/or the other surface (23) of the h...  
WO/1994/007349A1
Ferromagnetic structures formed of ferromagnetic via fills in a unitized multilayer microcircuit structure that is formed of a plurality of insulating tape layers.  
WO/1993/024970A1
A method of producing a microwave resonator comprising a cavity (50) defined, at least in part, by a generally cylindrical wall (64) having an electrically conductive inner surface and containing a generally cylindrical piece of low loss...  
WO/1993/014532A1
A dielectric filter (50) construction having at least two resonating cavities (88, 92) extending longitudinally through a block of dielectric material. At least one of the resonating cavities is of a cross-sectional area which is elongat...  
WO/1993/012557A1
The invention relates to super-high frequency techniques and may be used for making wave-guiding elements and devices. A wave-guiding element may be made by electrospark cutting of a channel in the wave-guiding body effected before or af...  
WO/1993/011577A1
A low-torque microwave cable in which interior metal layers are coated with graphite particles and a process for coating the interior layers with graphite while flexing the cable to reduce stiffness by two-thirds.  
WO/1993/009071A1
A ceramic dielectric block filter is manufactured by forming a block of uncured dielectric material that includes a plurality of holes formed there through which extend through the dielectric block to intersect top and bottom surfaces of...  
WO/1993/008672A1
A multilayer ceramic part in which its inner conductor is compacted, and the loss of a line is reduced, the performance such as the Q value is improved, and the variation of the performance is reduced. The paste of the inner conductor is...  
WO/1992/022994A1
A device with laminated conductive patterns and dielectrics which can be selected without consideration of its bonding characteristics in regard of copper metal comprises a conductor means comprising a support frame (2) with a window (3)...  
WO/1992/022939A1
A device for connecting areas of circuit pattern boards has flexible, stripline conductors (2, 2') surrounded by a dielectric (1, 5) and ground planes (8, 9; 6), a conductor laminate (a) comprising a substrate (1) and conductors (2, 2') ...  
WO/1992/022101A1
A microwave filter (30) and method of fabrication is provided in which an integral housing (22) defining a cavity (23) is formed from a blank (20) cut from a conductive sheet. The blank is bent to form the housing. The resultant housing ...  
WO/1992/019019A1
A dielectric filter assembly (276) comprised of a dielectric filter construction (80; 180) and a mounting bracket (182) therefor. The mounting bracket (182) forms a support surface (238, 240, 242) and includes integrally formed strip mem...  
WO/1992/017914A1
A dielectric block filter (100) construction having resonating cavities (126, 134) formed therein to form one half wave-wavelength resonators thereby. The resonating cavities span opposing side surfaces (104, 106) of the dielectric block...  
WO/1992/015125A1
Elliptical waveguide is formed by feeding an electrically conductive strip (1) through a forming tool (2) and pressing the formed strip onto a mandrel (5) in a helical configuration. The adjacent edges of the strip are mechanically inter...  
WO/1992/004741A1
A triplet line is constituted of a resonance element formed by interposing a dielectric member between a pair of ground conductors (6), the length of the line is selected to be about 1/4 of the wavelength, and resonators (5) with one end...  
WO/1992/004742A1
A microwave circuit in which a first metallic case (1, 10), which has on the end face of a cylindrical microwave transmission line a ring-like protruding part (3, 11), is in contact with a second metallic case (4) having a plane-like sha...  
WO/1991/003847A1
Continuous, elongated nickel plated graphite fibers (14) are bound with an epoxy and are formed into a structural shape (11). An area (13) of the epoxy is removed by bead blasting to expose a layer of the plated graphite fibers (14), whi...  
WO/1990/007793A1
A low temperature cofired monolithic ceramic package (10) for use with microwave and millimeter wave gallium arsenide integrated circuits, or the like. In situ buried passive components (22), including capacitors, resistors, couplers and...  
WO/1990/005389A1
A dielectric resonator consisting of a pole-like body (40) having a through hole (50). An electrode (80) having a strong bonding force is provided on the surface of the body (40) and on the inner peripheral surface of the through hole (5...  
WO/1990/002426A1
A laminated structure (10) is provided for use in impeding the passage of electromagnetic radiation, said material comprising a conductive metal barrier (12) for screening first and second regions lying on opposite sides of the barrier e...  
WO/1990/002427A1
An antenna system and technique for laminating a dielectric substrate (14) to an antenna housing (12) which prevents separation of the dielectric substrate (14) from the housing (12). This is accomplished by confining an antenna assembly...  
WO/1990/001222A1
A flexible coaxial cable (8) capable of high frequency signal propagation formed from a multilayer configuration having a plurality of adjacent signal traces (40, 42, 44, 46) etched in dielectric material (14, 82) and surrounded by a pro...  
WO/1988/003712A1
Close tolerance waveguide assemblies for use in antenna arrays. In particular, the waveguide assemblies are configured along the zero electrical current lines in the antenna array. Such waveguides are particularly useful in antenna array...  
WO/1986/007197A1
A method for manufacturing a wave-guide section providing a continuous transition between two cross-sections of different size and/or form in which in an end of a flexible, semi-rigide wave-guide (1) with uniform cross-section a mandrel ...  
WO/1985/000929A1
A microwave device comprises, for example, an interdigital bandpass filter in which a block (10) of a dielectric material is shaped and drilled with a line of parallel holes (19-23) to define the physical configuration of an interdigital...  
WO/1984/001058A1
In the disclosed method for fabricating corrugated microwave components, a billet assembly is formed of electrically conductive plates (10) sandwitched with chemical etching sensitive spacer material (20) and clamped together (30 and 31)...  
WO/1983/002853A1
A unique ceramic bandpass filter (100) that is comprised of a dielectric block (130) having one or more holes (101-106) extending from its top surface to its bottom surface and further having input and output electrodes (124, 125) each d...  
WO1982000222A1
The waveguides are obtained from a metal band (1) shaped and folded until shape is obtained; the edges of the folded and shaped band are welded according to a generating line of the waveguide (4) obtained. Application to the production o...  

Matches 401 - 450 out of 4,787