Abstract: A high pressure condenser for a magnetron, in which a pair of dielectric ceramics having an arch shape are separated from each other, central conductors are connected to internal peripheries of the dielectric ceramics, and a ground metal is connected to external peripheries of the dielectric ceramics, thereby not requiring any additional structure for connecting the dielectric ceramics and the central conductors, simplifying the structures of the central conductors, and reducing the quantity of the dielectric ceramics needed in proportion to the separation interval between the dielectric ceramics.

Abstract: An insulative internal resin cover is provided to partition an internal space of upper and lower insulative resin covers into a wire receiving space and an element receiving space. A wire-side terminal is provided at an intermediate portion of a wire, and is electrically connected to a conductor of the wire. When the intermediate portion of the wire is located in the wire receiving space, the wire-side terminal is inserted from the wire receiving space into the element receiving space through a terminal insertion hole formed in the internal resin cover, and is connected to a circuit including an element received in the element receiving space.

Abstract: Transmission line type components (1, 1?), which form coaxial lines having a very low characteristic impedance by coaxially installing a cylindrical outer conductor made of a conductive material being larger in diameter than an inner conductor so as to cover via a high dielectric insulating material the surface of an inner conductor made of a conductive material, are inserted in series between a power supply line (8) and a ground line (9) connected with a dc source on a printed circuit board and an I.SI (6) power supply port, whereby almost the entire high-frequency power supply current generated from the I.SI (6) is reflected off the I.SI (6) power supply port, and part of the high-frequency power supply current intruding into the components (1, 1?) is consumed and does not reach the external power supply line (8).

Abstract: An energy conditioning structure comprised of any combination of multilayer or monolithic energy conditioners with operable conductors, all selectively arranged and shielded for attachment to at least a conductive substrate.

Abstract: An electro-magnetic interference filter terminal assembly for active implantable medical devices includes a structural pad in the form of a substrate or attached wire bond pad, for convenient attachment of wires from the circuitry inside the implantable medical device to the capacitor structure via thermal or ultrasonic bonding, soldering or the like while shielding the capacitor from forces applied to the assembly during attachment of the wires.

Abstract: An improved, in-line, bulkhead mounted, electromagnetic interference filter specifically for low frequency, high current applications such as filtering EMI from 400 Hertz aircraft power, consisting in particular of capacitive elements employing a discoidal, non-ferroelectric ceramic dielectric such as NPO/COG, configured in any of the traditional L and C filter arrangements and packaged in a center feed through, ground plane metal jacket suitable for bulkhead or through-hole mounting, offering improved performance over the full specified temperature range, greater reliability and longer useful life than, for example, similar filters employing X7R dielectric.

Abstract: An EMI filtered connector includes a plurality of conductive terminal pins, a grounded conductive connector housing through which the terminal pins pass in non-conductive relation, and an array of feedthrough filter capacitors. Each of the feedthrough filtered capacitors has a distinct first set of electrode plates, a non-distinct second set of electrode plates, and a first passageway through which a respective terminal pin extends in conductive relation with the first set of electrode plates. At least one ground lead is conductively coupled to the conductive connector housing and extends into a second passageway through the array of feedthrough filter capacitors in conductive relation with the second set of electrode plates. An insulator is disposed in or adjacent to the connector for mounting the conductive terminal pins for passage through the conductive connector with the conductive terminal pins and the connector in non-conductive relation.

Abstract: A filtered button DC interconnect employing a compressible conductor such as a finely wound wire mesh imbedded within a series of dielectric and ferrite cylinders. The compressible conductor is captivated within the series of dielectric and ferrite cylinders to ensure proper contact with mating surfaces of interconnected circuits. The interconnect serves as an RF filter by providing rejection of RF and microwave frequencies between the interconnected circuits.

Abstract: A filtered electrical connector with ferrite block combinations and a filter assembly is used for filtering of electrical signals. The filtered electrical connector includes a connector housing made of an electrically insulating material, at least two terminals each having a cable contact area for conductively attaching cables for conducting a signal to be filtered, and a contacting portion for making contact with a corresponding contacting portion in a complementary mating connector. The filtered electrical connector also includes a filter assembly which comprises at least two generally cylindrical ferrite bodies positioned on a common axis, wherein the terminals extend into or pass through the filter assembly.

Abstract: A transmission line type noise filter includes a metal fine wire (1) made of valve-operational metal and serving as a central conductor, a capacitance forming portion (3) formed over a predetermined length on the periphery of the metal fine wire, and a conductor layer (2) formed on the surface of the capacitance forming portion and serving as an external conductor. The capacitance forming portion (3) includes a sintered body (11) formed on the metal fine wire and made of the foregoing valve-operational metal, a dielectric film (31) formed on the surface of the sintered body and serving as a dielectric, and a solid electrolyte layer (23) formed on the surface of the dielectric film.

Abstract: A feed-through filter capacitor assembly using an electrically conductive adhesive modified with a filler of low coefficient of thermal expansion (CTE) to provide a conductive relation between the conductive pin and the electrode plates of the ceramic capacitor. The conductive adhesive contains an organic polymer-based adhesive component that has a CTE greater than the CTE of the capacitor ceramic body and a conductive metal filler having a CTE lower than the adhesive component. The conductive adhesive is further provided with a CTE-lowering filler that has a CTE lower than the CTE of the conductive metal filler, thereby lowering the overall CTE of the adhesive to a value closer to the CTE of the capacitor ceramic body.

Abstract: A feed-through filter capacitor assembly using an electrically conductive adhesive modified with a filler of low coefficient of thermal expansion (CTE) to provide a conductive relation between the conductive pin and the electrode plates of the ceramic capacitor. The conductive adhesive contains an organic polymer-based adhesive component that has a CTE greater than the CTE of the capacitor ceramic body and a conductive metal filler having a CTE lower than the adhesive component. The conductive adhesive is further provided with a CTE-lowering filler that has a CTE lower than the CTE of the conductive metal filler, thereby lowering the overall CTE of the adhesive to a value closer to the CTE of the capacitor ceramic body.

Abstract: The invention may be embodied in an electromagnetic filter for use with a feedthrough conductor. An inductor having a metallized surface is disposed about the conductor, and a capacitor is joined to the inductor. One set of capacitor plates are electrically connected to a first conductive contact to provide a connection to the metallized surface. Another set of capacitor plates are electrically connected to a second conductive contact to provide a connection to the feedthrough conductor. A method of providing such a filter is also disclosed.

Abstract: An electromagnetic filter has a pair of solder-in filters assembled together outside of a filter housing, inserted into, and soldered to the filter housing. The solder-in filters have a metal casing and a capacitor encapsulated within the metal casing and attached to the metal casing. A glass hermetic seal on one end of the solder-in filters reduces the risk of moisture entering the filter during the testing process and adversely affecting the electrical properties of the filter.

Abstract: A noise filter of a high frequency generator reduces noise of a certain frequency band leaked from the high frequency generator using a structure in which a first core inductor, an air-core inductor and a second core inductor are connected in series to each other. The first and second core inductors have high frequency-energy absorbing members inserted thereinto, and the air-core inductor is not provided with a high frequency-energy absorbing member therein. The high frequency-energy absorbing member is made of one of iron oxide, tin alloy and ferrite. The high frequency-energy absorbing member is also provided with a sectional area in which noise of a frequency band of 400 MHz to 900 MHz is attenuated.

Abstract: Disclosed herein is a feed-through filter having improved shielding and mounting functions. The feed-through filter of the present invention has an insulating substrate (40), one or more lead terminal through holes (42), lead terminal connection parts (43a), a top surface ground part (41), filter devices (C1 and C2), and a bottom surface ground part (44). The insulating substrate (40) has top, bottom and side surfaces. The lead terminal through holes (42) pass through the top and bottom surfaces of the insulating substrate (40). The lead terminal connection parts (43a) are separately formed around the through holes (42) on the top surface using conductive materials, and electrically connected to lead terminals (L1 and L2). The top surface ground part (41) is formed along the border of the top surface of the insulating substrate (40).

Abstract: An electric filter having means for buffering high-frequency interference in a high-current environment, comprising a feed-through conductor, a derivation conductor, and one or more capacitors. The one or more capacitors are switched between the feed-through conductor and the derivation conductor. The feed-through conductor is directed around the capacitor. A motor vehicle wiring system can be equipped with such a filter.

Abstract: The invention includes an electromagnetic filter for a feedthrough conductor, and a method of making such a filter. At least two dielectric components are supported from a first side of a substrate, such as a housing or a printed circuit board.

Abstract: An improved, in-line, bulkhead mounted, electromagnetic interference filter specifically for low frequency, high current applications such as filtering EMI from 400 Hertz aircraft power, consisting in particular of capacitive elements employing a discoidal, non-ferroelectric ceramic dielectric such as NPO/COG, configured in any of the traditional L and C filter arrangements and packaged in a center feed through, ground plane metal jacket suitable for bulkhead or through-hole mounting, offering improved performance over the full specified temperature range, greater reliability and longer useful life than, for example, similar filters employing X7R dielectric.

Abstract: Disclosed herein is a feed-through filter having improved shielding and mounting functions. The feed-through filter of the present invention has an insulating substrate (40), one or more lead terminal through holes (42), lead terminal connection parts (43a), a top surface ground part (41), filter devices (C1 and C2), and a bottom surface ground part (44). The insulating substrate (40) has top, bottom and side surfaces. The lead terminal through holes (42) pass through the top and bottom surfaces of the insulating substrate (40). The lead terminal connection parts (43a) are separately formed around the through holes (42) on the top surface using conductive materials, and electrically connected to lead terminals (L1 and L2). The top surface ground part (41) is formed along the border of the top surface of the insulating substrate (40).

Abstract: An electronic device includes a housing for accommodating a carrier substrate. An electronic module and a conductor structure for making electrical connection with the electronic module are fitted on the carrier substrate. A filter device for improving the electromagnetic sensitivity is arranged in the housing. The filter device is formed by an electrical and/or capacitive connection of a first conductor surface of the conductor structure to an external first potential and by an electrical and/or capacitive connection of a second conductor surface of the conductor structure to a second electrical potential, the first conductor surface and the second conductor surface being arranged approximately opposite one another.

Abstract: An electric filter having means for buffering high-frequency interference in a high-current environment, comprising a feed-through conductor, a derivation conductor, and one or more capacitors. The one or more capacitors are switched between the feed-through conductor and the derivation conductor. The feed-through conductor is directed around the capacitor. A motor vehicle wiring system can be equipped with such a filter.

Abstract: A transmission line type noise filter includes a metal fine wire (1) made of valve-operational metal and serving as a central conductor, a capacitance forming portion (3) formed over a predetermined length on the periphery of the metal fine wire, and a conductor layer (2) formed on the surface of the capacitance forming portion and serving as an external conductor. The capacitance forming portion (3) includes a sintered body (11) formed on the metal fine wire and made of the foregoing valve-operational metal, a dielectric film (31) formed on the surface of the sintered body and serving as a dielectric, and a solid electrolyte layer (23) formed on the surface of the dielectric film.

Abstract: A filtered button DC interconnect employing a compressible conductor such as a finely wound wire mesh imbedded within a series of dielectric and ferrite cylinders. The compressible conductor is captivated within the series of dielectric and ferrite cylinders to ensure proper contact with mating surfaces of interconnected circuits. The interconnect serves as an RF filter by providing rejection of RF and microwave frequencies between the interconnected circuits.

Abstract: A magnetron including a cathode terminal of a magnetron main body and an inductor connected to the cathode terminal to constitute a filter, wherein the inductor includes an air-core coarse inductor and a cored inductor connected in series, the air-core coarse inductor being connected to the cathode terminal side, and the air-core coarse inductor includes a large pitch winding provided on the cathode terminal side and a small pitch winding provided on the opposite side.

Abstract: An electromagnetic filter has a pair of solder-in filters assembled together outside of a filter housing, inserted into, and soldered to the filter housing. The solder-in filters have a metal casing and a capacitor encapsulated within the metal casing and attached to the metal casing. A glass hermetic seal on one end of the solder-in filters reduces the risk of moisture entering the filter during the testing process and adversely affecting the electrical properties of the filter.

Abstract: The present invention is a component carrier (132) consisting of a plate of insulating material having a plurality of apertures (140) for accepting the leads of a thru-hole differential and common mode filter (130). Another embodiment consists of a surface mount component carrier (10) comprising a disk (16) of insulating material having a plurality of apertures (24). The same concept for the above described carrier is also incorporated into several alternate embodiments, either independently, embedded within electronic connectors. The overall configuration and electrical characteristics of the concepts underlying the present inventions are also described as an energy conditioning circuit assembly which encompasses the combination of differential and common mode filters and component carriers optimized for such filters.

Abstract: A feedthrough capacitor filter assembly includes a capacitor having first and second sets of conductive electrode plates embedded within an insulative or dielectric body, and a leak detection vent for facilitated hermetic seal testing prior to use. At least one feedthrough terminal pin extends through the capacitor in conductive relative with the first set of electrode plates, and an outer ferrule is mounted about the capacitor in conductive relation with the second set of electrode plates. A hermetic seal is seated within the ferrule at one side of the capacitor to prevent leakage of fluid through the filter assembly. The hermetic seal is spaced from a face of the capacitor to form a gap therebetween.

Abstract: In a noise removing filter for removing the electromagnetic wave noise leaking from an electronic equipment to the outside via a connector throughhole through which a connector passes, the noise removing filter includes a magnetic member filled in a gap between a body of the electronic equipment and the connector to cover the circumference of the connector.

Abstract: An improved internally grounded feedthrough filter capacitor includes at least one conductive terminal pin, a feedthrough filter capacitor having first and second sets of electrode plates and a first passageway through which the terminal pin extends in conductive relation with the first set of electrode plates, and a conductive ferrule through which the terminal pin passes in non-conductive relation. A conductive ground plane includes a plate which substantially spans and supports an adjacent face of the feedthrough filter capacitor, and an integral grounded terminal pin which extends into a second passageway through the feedthrough filter capacitor in conductive relation with the second set of electrode plates. A washer electrically insulates the feedthrough filter capacitor from the conductive ferrule except for the conductive relation between the grounded terminal pin and the second set of electrode plates.

Abstract: This invention relates to a unipolar or multipolar electrical filter feedthrough device (1) to be introduced into an aperture of housing (26) of an implantable electronic therapeutic device with a feedthrough body (2) to be inserted in the aperture and comprising a fixing means (3) to connect with the housing wall, and with filter means (7) designed as capacitors, that are, on one side, connected—in an electrically conductive manner—with one of the electrical pins (8) that are mutually electrically separated, and, on the other side, with the housing of the therapeutic device carrying a reference potential. Filter means (7) are arranged outside the feedthrough body (2) and are connected with this body in such a manner that they basically stick out into the inside (4) of housing (26) in a freely suspended manner.

Abstract: A singular or multiple paired, filter capacitor assembly that is comprised of either multilayer or monolithic capacitors and includes selective and arranged attachment to at least a conductive substrate, with operable conductors. This assembly can also include coupled to sets of interleaved-type or monolithic-type ground and active electrodes all arranged in a pre-selected manner for electrical connection into various types of electrical devices.

Abstract: The size and placement of internal metallization areas as do collectively form each of two electrodes is improved in a typically discoidal feed-through ceramic filter capacitor having (i) multiple ceramic layers, (ii) a hole passing a wire that carries electrical signals which are to be filtered, (iii) metal lining the hole so as to make electrical contact with the wire, and (iv) an exterior metal band connected to ground. First internal metallization areas, each in the shape of a relatively smaller small-aperture disk, are centered about the body's hole in contact with the metal lining, each area being upon one of the body's multiple ceramic layers, the areas collectively serving as a first electrode of the capacitor.

Abstract: A singular or multiple paired, filter capacitor assembly that is comprised of either multilayer or monolithic capacitors and includes selective and arranged attachment to at least a conductive substrate, with operable conductors. This assembly can also include coupled to sets of interleaved-type or monolithic-type ground and active electrodes all arranged in a pre-selected manner for electrical connection into various types of electrical devices.

Abstract: An electro-magnetic interference (EMI) filter assembly comprising of an absorbing layer filled with magnetic material in a form of microwires, metallic ribbons or powder, the magnetic material-filled layer in close proximity to an electrical conductor carrying a common mode noise current superimposed on a functional differential-mode current. The absorbing layer performs the EMI filtering by means of reflection and absorption of high frequency energy of the common mode current due to the high magnetic permeability of the layer's magnetic substance. An appropriate filler compound reinforces the magnetic substance in the magnetic material-filled layer. A circuit laminate which is adjacent to the magnetic material-filled layer supports the electrical conductor(s), to give a basic structure of a PCB filter in which the magnetic material is embedded. Various configurations of the basic filter assembly are described, such as multi-layer filters and optimized transmission lines.

Abstract: A multiple filter for a plug connector has at least one capacitor with a signal electrode and a ground electrode connected to the associated signal and ground line, respectively, such that it can be produced using not only discrete components but also using thick-film or thin-film technology, and such that it can also be used in the frequency range above 10 GHz. A block of capacitor columns is provided, which are combined in the block or are provided free-standing on a block base. The block insulating material is formed by the capacitor dielectric with a dielectric constant of 103 to 104. Each capacitor column contains a capacitor which is formed by a signal conductor and a ground conductor. The signal electrode is formed either by the signal conductor itself or by layers connected thereto. The ground electrode is formed on the outer wall of the capacitor column and at least partially covers it.

Abstract: A novel electromagnetic interference (EMI) filter is designed to attenuate one or more specific frequencies in order to provide electromagnetic compatibility of an electronic device while in the presence of an electromagnetic emitter operating at the same or similar frequencies. The EMI filter of the present invention combines an EMI low pass filter with one or more “notch” EMI filters tuned to the specific frequencies of interest. When combined in this fashion, the notch EMI filter can effectively attenuate the electromagnetic field of a powerful low frequency emitter which is outside the effective attenuation frequency range of the low pass filter, which is itself effective at filtering a broad range of higher frequencies. In a preferred embodiment, the notch EMI filter capacitive element is integrated in a co-planar relationship with a ceramic feedthrough filter capacitor assembly.

Abstract: A filter includes a first end, a second end, a conducting casing, at least one central conductor, and connecting devices at each of the ends, the casing extending along an imaginary axis and intended to accommodate the conductor along this imaginary axis. The conductor is provided with capacitance generating portions and inductance generating portions. The connecting device at the first end of the filter includes a first connecting member connected to the casing and a second connecting member connected to the conductor, and the connecting device at the second end of the filter includes a third connecting member connected to the casing and a fourth connecting member connected to the conductor. Both the second and the fourth connecting members are provided integrally with the conductor.

Abstract: The present invention relates to a noise removing filter of a magnetron and a noise removing method. In the conventional art, the noise is removed by forming a low band pass filter formed of a choke coil and a through type capacitor. In this case, it is impossible to effectively remove the noises which are outputted at a band width below 100 MHz and at a band width of 500 MHz and 700-800 MHz. In order to overcome the above-described problem, a magnetron noise filter in accordance with the present invention which includes a shield box fixed to one side of the magnetron, a through type capacitor installed at one side of the shield box and a combined choke coil connected to a cathode terminal of the magnetron and a terminal of the capacitor, wherein the combined choke coil comprising a tightly wound portion around a bar having a certain diameter and a loosely wound portion connected with the tightly wound portion.

Abstract: An apparatus and a method of electrically filtering unwanted noise signals between a computer sub-system and a power sub-system is disclosed. The computer sub-system and the power sub-system are housed within an electrically conducting housing which includes a partition between the computer sub-system and the power sub-system. The apparatus includes a bus bar connected between the power sub-system and the computer sub-system for providing direct current energy between the power sub-system and the computer sub-system. A dielectric material encompasses the bus bar. An electrically conducting material encompasses the dielectric material and is connected to the electrically conducting housing. A virtual capacitor is thereby formed between the bus bar and the housing, providing a path of least resistance for the unwanted noise signals.

Abstract: A feedthrough capacitor filter assembly includes a capacitor having first and second sets of conductive electrode plates embedded within an insulative or dielectric body, and a leak detection vent for facilitated hermetic seal testing prior to use. At least one feedthrough terminal pin extends through the capacitor in conductive relative with the first set of electrode plates, and an outer ferrule is mounted about the capacitor in conductive relation with the second set of electrode plates. A hermetic seal is seated within the ferrule at one side of the capacitor to prevent leakage of fluid through the filter assembly. The hermetic seal is spaced from a face of the capacitor to form a gap therebetween.

Abstract: The technique of shrink fitting technique described herein is used to bond crystalline sapphire pieces to each other, in particular, the shrink fitting of a c-axis sapphire post to a c-axis sapphire puck. The sapphire dielectric resonator is used successfully from cryogenic temperatures to well above room temperature. The shrink fit bond yields a high strength and rigid attachment which can withstand high shock levels. Since there is no loss, the resonator Q is a maximum, being limited by the sapphire loss tangent only.

Abstract: A singular or multiple paired, filter capacitor assembly that is comprised of either multilayer or monolithic capacitors and includes selective and arranged attachment to at least a conductive substrate, with operable conductors. This assembly can also include coupled to sets of interleaved-type or monolithic-type ground and active electrodes all arranged in a pre-selected manner for electrical connection into various types of electrical devices.

Abstract: An apparatus and a method of electrically filtering unwanted noise signals between a computer sub-system and a power sub-system is disclosed. The computer sub-system and the power sub-system are housed within an electrically conducting housing which includes a partition between the computer sub-system and the power sub-system. The apparatus includes a bus bar connected between the power sub-system and the computer sub-system for providing direct current energy between the power sub-system and the computer sub-system. A dielectric material encompasses the bus bar. An electrically conducting material encompasses the dielectric material and is connected to the electrically conducting housing. A virtual capacitor is thereby formed between the bus bar and the housing, providing a path of least resistance for the unwanted noise signals.

Abstract: A ferrite bead is placed in series with a terminating resistor on a transmission line such as a clock transmission line. In lower frequency ranges where the ferrite bead is substantially not effective, the transmission line will be effectively terminated by the resistor. In higher frequency ranges where the resistor is substantially no longer effective, the transmission line will be terminated by the ferrite bead. In one aspect, the resistor and ferrite bead are provided in a single surface mount package.

Abstract: In a noise removing filter for removing the electromagnetic wave noise leaking from an electronic equipment to the outside via a connector throughhole through which a connector passes, the noise removing filter includes a magnetic member filled in a gap between a body of the electronic equipment and the connector to cover the circumference of the connector.

Abstract: A feed-through EMI filter includes a hollow outer conductor, an inner conductor passing through the outer conductor, and a composite magnetic material of magnetic metal flakes disposed between the outer conductor and the inner conductor. Both ends of the outer conductor are closed by insulating lids supporting the inner conductor in a feed-through arrangement. The composite magnetic material has a higher complex relative permeability at GHz frequencies than ferrites and produces a large insertion loss.

Abstract: A printed-wiring board is incorporated into an electronic device housing constructed of a conductive member, and has a ground pattern. A metal plate having a size equal to or larger than the printed-wiring board is disposed in a position facing to the printed-wiring board. The metal plate has a characteristic impedance corresponding to an electric characteristic and a relative position to the printed-wiring board. A connecting member electrically connects the ground pattern of the printed-wiring board to the metal plate, and includes an impedance element having a value substantially equal to the characteristic impedance between the printed-wiring board and the metal plate. An occurrence of radiant noises caused by standing-waves etc. is thereby prevented.

Abstract: An in-line and ninety degree filter assembly is provided in the present invention for coupling a coaxial cable thereto. The coaxial cable has a coaxial wire disposed therein. The filter assembly includes a filter body that has a first end and a second end spaced apart from the first end. A circuit board is secured within the filter body for filtering electrical signals received from the coaxial cable. The circuit board includes a center coax in electrical and mechanical communication with the circuit board and a ground lead connected to the circuit board and protruding therefrom for electrically and mechanically communicating with the filter body upon installation of the circuit board into the filter body such that the circuit board is electrically grounded to the filter body.

Abstract: A filter apparatus includes a housing having a first body portion and a second body portion which mate together to enclose an accessible inner portion of the housing. Filtering elements disposed within the inner portion filter signals transmitted through a pair of signal carriers which pass through the inner portion. A pair of guides disposed within the inner portion maintain the electrical conductors in a predetermined positional relationship with certain of the filter elements. The guides are each actuated by placing a signal carrier against a predetermined portion of the guide and applying manual pressure against the signal carriers to cause the signal carrier to be pressed into a the predetermined positional relationship. Certain embodiments include contact push posts which pierce an insulating layer of a corresponding signal carrier to make electrical contact with the signal carrier. Other embodiments include a cutting element to sever the signal carriers to implement a four-terminal filter.