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US20090302975 |
MICROSTRIPLINE FILTER AND METHOD FOR MANUFACTURING THE SAME
A microstripline filter in which characteristics of a plurality of resonators which are connected to one another in a manner of inductive coupling are precisely set. The microstripline filter...
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US20090289731 |
RESONATOR CIRCUIT AND VOLTAGE-CONTROLLED OSCILLATOR USING THE SAME
A resonator circuit applied to a voltage-controlled oscillator comprises a switch and a wiring inductance. The switch is connected to a first node and a third node. The wiring inductance has...
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US20090278630 |
Substrate With HF-Compatible Line
A substrate with an HF-compatible line arranged in this substrate will be proposed that is formed similar to a tri-plate strip line in which, however, at least one of the ground planes has a slot...
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US20090273417 |
Microstripline Filter
A microstripline filter capable of strengthening capacitive coupling between resonators and suppressing fineness of electrodes is provided. The microstripline filter includes principal-surface...
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US20090267708 |
Dielectric Filter
A dielectric filter having a dielectric block disposed on a mount board. The dielectric block includes inner conductor holes having open ends on the front surface of the dielectric block....
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US20090256653 |
DUAL-BAND COUPLING DEVICE
A coupling device is provided. The coupling device has a substrate, a ground element, a first feed conductor and a second feed conductor. The substrate has a first surface and a second surface. The...
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US20090243760 |
Second-Order Band-Pass Filter and Wireless Apparatus Using the Same
A second-order band-pass filter for generating at least two transmission zeros includes a first signal terminal, a second signal terminal, a first transmission line resonator, a second transmission...
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US20090243759 |
LOW-PASS FILTER
A low-pass filter ( 10 ) includes an input portion ( 100 ) for input of an electromagnetic signal, an output portion ( 120 ) for output of the electromagnetic signal, a high impedance transmission...
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US20090237183 |
LOW-PASS FILTER
A low-pass filter includes an input portion inputting an electromagnetic signal, an output portion outputting the electromagnetic signal, a high impedance transmission portion electrically...
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US20090239752 |
Superconducting device, fabrication method thereof, and filter adjusting method
A superconducting device comprises a dielectric substrate, and a plane-figure type resonator pattern made of a superconductive material and formed on a first face of the dielectric substrate. The...
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US20090237182 |
Compact single-to-balanced bandpass filter
A compact single-to-balanced bandpass filter is proposed in this invention. Firstly, a pre-design circuit is presented, which is composed of an inductive coupled-line (ICL) bandpass filter and an...
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US20090231063 |
LOW-PASS FILTER
A low-pass filter ( 10 ) includes an input portion ( 100 ) inputting an electromagnetic signal, an output portion ( 120 ) outputting the electromagnetic signal, a high impedance transmission...
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US20090219115 |
Resonant Element and Method for Manufacturing the Same
A plurality of flat-plate filter elements are placed on a pallet having a plurality of holding holes. Each of the filter elements includes a rear-principal-surface electrode pattern having a ground...
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US20090212887 |
METHOD AND SYSTEM FOR PROCESSING SIGNALS VIA DIRECTIONAL COUPLERS EMBEDDED IN AN INTEGRATED CIRCUIT PACKAGE
Methods and systems for processing signals via directional couplers embedded in an integrated circuit package are disclosed and may include generating via a directional coupler, one or more output...
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US20090212886 |
DUAL-BAND BANDPASS RESONATOR AND DUAL-BAND BANDPASS FILTER
A dual-band bandpass filter according to the present invention includes a plurality of dual-band bandpass resonators. The dual-band bandpass resonator includes a central conductor having a central...
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US20090206954 |
ELASTIC SURFACE WAVE DEVICE
A surface acoustic wave device includes a pair of reflectors and an interdigital transducer having a cross electrode having a interdigitated portion and a dummy portion and a dummy electrode. The...
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US20090206956 |
SUBSTRATE, COMMUNICATION MODULE, AND COMMUNICATION APPARATUS
A substrate for mounting a filter has a connection line layer having a transmission line for connecting a filter, a ground layer placed below the connection line layer and having a ground, and an...
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US20090189716 |
FILTER DEVICE WITH FINITE TRANSMISSION ZEROS
A filter device with transmission zeros is provided according to the present invention, which has an odd mode resonant frequency and an even mode resonant frequency. The filter device includes: a...
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US20090184782 |
Electromagnetic bandgap structure and printed circuit board
Disclosed are an electromagnetic bandgap structure and a printed circuit board. In accordance with an embodiment of the present invention, the electromagnetic bandgap structure can include a...
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US20090179716 |
RF Filter Device
The present invention is directed to an integrated filter device for an implantable element. The device includes at least one filter component having N-circuit layers, N being an integer greater...
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US20090181635 |
HIGH-FREQUENCY CIRCUIT HAVING FILTERING FUNCTION AND RECEPTION DEVICE
A high-frequency circuit includes a dielectric substrate, a stripline formed on a surface of the dielectric substrate, a ground conductor provided on a back surface of the dielectric substrate, in...
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US20090174504 |
ULTRA WIDEBAND FILTER
An ultra wideband (UWB) filter ( 20 ) disposed on a substrate ( 10 ). The UWB filter includes a first transmission portion ( 22 ), a second transmission portion ( 24 ), a connection portion ( 26 ),...
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US20090167463 |
Dielectric Filter
A dielectric filter having inner-conductor holes penetrating through a dielectric block from a first surface to a second surface thereof. An outer conductor and input/output electrodes are formed...
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US20090160582 |
BAND-PASS FILTER, HIGH-FREQUENCY COMPONENT, AND COMMUNICATION APPARATUS
A band-pass filter according to the present invention includes two or more resonant lines arranged side by side in a direction orthogonal to a laminating direction in a laminate substrate formed by...
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US20090146763 |
High Q Surface Mount Technology Cavity Filter
A cavity filter device includes a micro-strip structure comprising a low dielectric organic material forming a printed wiring board. The printed wiring board may be soldered, welded, or adhered to...
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US20090146762 |
RESONATOR AND FILTER
According to an aspect of the present invention, there is provided a resonator including: a transmission line including a conductor line with a bent portion, wherein the conductor line has a...
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US20090121811 |
MULTILAYERED COPLANAR WAVEGUIDE FILTER UNIT AND METHOD OF MANUFACTURING THE SAME
A multilayered coplanar waveguide (CPW) filter unit and a method of manufacturing the same are provided. A plate having a capacitance element is formed on or below a CPW layer including a signal...
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US20090091402 |
Compact stripline low frequency band reject filter
A low frequency reject filter element is formed on a printed circuit board that utilizes the fact that power transmission in a waveguide is cut-off below a certain frequency. A quasi waveguide...
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US20090085693 |
Filter
A filter being small and having a narrowband filter characteristic is achieved using interdigital-coupled resonators. A first resonator and a second resonator are configured using...
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US20090072928 |
REFLECTION-TYPE BANDPASS FILTER
This invention provides a reflection-type bandpass filter for ultra-wideband wireless data communication, in which are provided, on the surface of a dielectric substrate, a center conductor and...
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US20090045890 |
FILTERING CIRCUIT AND STRUCTURE THEREOF
A filtering circuit and a structure thereof are provided. The filtering circuit includes an input terminal, an output terminal, a resonant circuit, a first coupling portion, and a second coupling...
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US20090027141 |
FILTER CIRCUIT, FILTER CIRCUIT DEVICE, MULTILAYERED CIRCUIT BOARD, AND CIRCUIT MODULE EACH INCLUDING THE FILTER CIRCUIT
A filter circuit comprises a first impedance element disposed in an input side, a second impedance element disposed in an output side, having an input end connected to an output end of the first...
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US20090002102 |
ELECTRICAL FILTERS WITH IMPROVED INTERMODULATION DISTORTION
A method of constructing a band-stop filter comprises designing a band-stop filter including a signal transmission path, resonant elements disposed along the signal transmission path, and...
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US20090000106 |
METHOD OF FORMING VERTICAL COUPLING STRUCTURE FOR NON-ADJACENT RESONATORS
A method for forming a vertical coupling structure for non-adjacent resonators is provided to have a first and a second resonators, a dielectric material layer, a first and a second high-frequency...
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US20090002101 |
HIGH-PASS FILTER
A high frequency filter for filtering a frequency component from a high frequency signal includes a capacitor and a branch line. The capacitor may be disposed in series to a transmission line. The...
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US20080315977 |
Low loss RF transmission lines
A transmission structure having high propagation velocity and a low effective dielectric loss. The structure comprises a dielectric, a first reference conductor disposed below the dielectric, a...
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US20080309435 |
NOISE FILTER
A noise filter connected to an LC oscillator is provided. The noise filter comprises a transmission line, a DC bias circuit, and a capacitor. The transmission line is connected to the LC...
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US20080284545 |
FIXED IMPEDANCE LOW PASS METAL POWDER FILTER WITH A PLANAR BURIED STRIPLINE GEOMETRY
A fixed impedance low pass metal powder filter having a planar buried stripline geometry comprises first and second parallel ground planes spaced from one another and a central stripline spaced...
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US20080278265 |
DUAL BAND RESONATOR AND DUAL BAND FILTER
A signal input/output line 101 is used for input and output of a signal. A first resonating part 102 is connected to the signal input/output line 101 at one end and is opened at the other...
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US20080274899 |
SUPERCONDUCTING DISK RESONATOR
A superconducting disk resonator is disclosed that includes a dielectric base substrate having dielectric anisotropy, a disk type superconducting resonator pattern that is formed on the dielectric...
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US20080266028 |
Enhanced Substrate Using Metamaterials
In enhancing signal quality through packages, meta-materials may be used. Meta-materials are designed to make the signal act in such a way as to make the shape of the signal behave as though the...
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US20080266033 |
HIGH FREQUENCY FILTER HAVING RESONANCE PATTERN OF MICROSTRIP LINE OR STRIP LINE STRUCTURE
A resonance pattern ( 21 ) made of conductive material and having a circular plan shape is formed over the principal surface of a dielectric substrate. First and second virtual straight lines...
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US20080242549 |
SUPERCONDUCTING FILTER DEVICE
A superconducting filter device is disclosed that includes a dielectric base substrate; a patch-type resonator pattern formed of a superconducting material on the base substrate; and a feeder...
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US20080238578 |
COPLANAR WAVEGUIDE RESONATOR AND COPLANAR WAVEGUIDE FILTER USING THE SAME
A coplanar waveguide resonator ( 100 a ) has a center conductor ( 101 ) formed on a dielectric substrate ( 105 ) that has a line conductor (a center line conductor) ( 101 b ) extending in the...
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US20080224800 |
Dielectric Filter, Chip Device and Method of Manufacturing the Chip Device
A chip device having a ground electrode and a plurality of top-surface electrodes on a plate-like dielectric substrate. Two of the top-surface electrodes are connected to the ground electrode via...
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US20080191815 |
FILTER ELEMENT
A filter element includes a coil part formed in an overall tubular shape by layering a pair of signal transmitting belt-shaped conductors and a grounding belt-shaped conductor with a belt-shaped...
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US20080169887 |
Integrated bandpass/bandstop coupled line filter
An apparatus and method for attenuating selected frequency bands in a microstrip filter having a plurality of microstrip resonators. The filter comprises plural resonators, a first of the plural...
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US20080157901 |
Device for the propagation of electromagnetic waves with modulated dielectric constant
A microstrip structure comprising a conductive layer whose width varies in such a way as to obtain an effective dielectric constant, which presents a sinusoidal shape modulation. The propagation of...
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US20080129420 |
EMBEDDED ANTENNA AND FILTER APPARATUS AND METHODOLOGY
Apparatus and methodology are disclosed for providing effective transmission of data to and/or from an electricity meter by providing embedded radio frequency components. An antenna and stripline...
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US20080129419 |
Dual-mode dual-ring band-pass filter
The present invention relates to a dual-mode dual-ring band-pass filter, which includes a first half-ring resonator, a second half-ring resonator, and a third half-ring resonator. The second...
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