| Patent Number |
Title Of Patent |
Date Issued |
| 7268648 |
Dual mode band-pass filter |
September 11, 2007 |
| A dual mode band-pass filter includes a metallic film for defining a resonator, disposed on the first main surface of a dielectric substrate having first and second main surfaces, or inside of the dielectric substrate. An opening is formed in the metallic film. At least one ground el |
| 7239221 |
Dual mode band-pass filter |
July 3, 2007 |
| A dual mode band-pass filter includes a metallic film for defining a resonator, disposed on the first main surface of a dielectric substrate having first and second main surfaces, or inside of the dielectric substrate. An opening is formed in the metallic film. At least one ground el |
| 7119639 |
Dual mode band-pass filter |
October 10, 2006 |
| A dual mode band-pass filter includes a metallic film for defining a resonator, disposed on the first main surface of a dielectric substrate having first and second main surfaces, or inside of the dielectric substrate. An opening is formed in the metallic film. At least one ground el |
| 7098760 |
Dual mode band-pass filter |
August 29, 2006 |
| A dual mode band-pass filter includes a metallic film for defining a resonator, disposed on the first main surface of a dielectric substrate having first and second main surfaces, or inside of the dielectric substrate. An opening is formed in the metallic film. At least one ground el |
| 6977564 |
Bandpass filter |
December 20, 2005 |
| A bandpass filter includes a dielectric substrate, a resonator electrode that is provided on a portion of a plane at an intermediate height in the thickness direction of the dielectric substrate so as to oppose the top face of the dielectric substrate and includes an aperture, first and |
| 6958667 |
Electronic chip component |
October 25, 2005 |
| A band-pass filter functioning as a electronic chip component includes a chip having upper and lower surfaces, a pair of side surfaces, and first and second end surfaces facing each other. A resonator electrode is disposed in the chip. The band-pass filter also includes input and output |
| 6812813 |
Method for adjusting frequency of attenuation pole of dual-mode band pass filter |
November 2, 2004 |
| A method for easily adjusting the frequency of an attenuation pole in a dual-mode band pass filter which is very compact and greatly increases coupling strength while maintaining a great deal of freedom of design. The dual-mode band pass filter includes a metal film partially disposed on |
| 6771148 |
Dual mode band-pass filter |
August 3, 2004 |
| A dual mode band-pass filter includes a metallic film for defining a resonator, disposed on the first main surface of a dielectric substrate having first and second main surfaces, or inside of the dielectric substrate. An opening is formed in the metallic film. At least one ground el |
| 6727783 |
Method of producing band-pass filter and band-pass filter |
April 27, 2004 |
| A method of producing a band-pass filter includes selecting the shape of a metallic film and the connection points of input-output coupling circuits such that first and second resonance modes are generated in a metallic film provided on a dielectric substrate. At least a portion of the |
| 6720848 |
Dual mode band-pass filter having coupled modes |
April 13, 2004 |
| A dual mode band-pass filter includes a metallic film for defining a resonator, disposed on the first main surface of a dielectric substrate having first and second main surfaces, or inside of the dielectric substrate. An opening is formed in the metallic film. At least one ground el |
| 6630875 |
Dual-mode band-pass filter |
October 7, 2003 |
| A dual-mode band-pass filter having a greatly reduced size and a high design flexibility, includes a frame-shaped electrode pattern disposed on one surface or inside a dielectric substrate. A pair of input-output circuits are coupled to the frame-shaped electrode pattern. The plane s |
| 6608537 |
Band-pass filter |
August 19, 2003 |
| A band-pass filter includes a metal film provided on a dielectric body. The shape and size of the metal film and the coupling points of input-output coupling circuits are selected such that first and second resonance modes are generated. The metal film has protruding portions or concavit |
| 6580342 |
Method of producing band-pass filter and band-pass filter |
June 17, 2003 |
| A method of producing a band-pass filter includes selecting the shape of a metallic film and the connection points of input-output coupling circuits such that first and second resonance modes are generated in a metallic film provided on a dielectric substrate. At least a portion of the |
| 6563403 |
Dual mode band-pass filter |
May 13, 2003 |
| A dual mode band-pass filter includes a dielectric body having first and second main surfaces, a metal film partially disposed on the first main surface of the dielectric body or at a predetermined level in the dielectric body, the metal film having any one of an opening, a protrusio |
| 6556109 |
Dual mode band pass filter |
April 29, 2003 |
| A dual mode band pass filter is constructed to be very compact and such that the coupling strength and bandwidth can be easily and widely adjusted while maintaining sufficient freedom of design. A metal film for forming a resonator is arranged on a first main surface of a dielectric body |
| 6556108 |
Method of producing band-pass filter and band-pass filter |
April 29, 2003 |
| A method of producing a band-pass filter includes selecting the shape of a metallic film and the connection points of input-output coupling circuits such that first and second resonance modes are generated in a metallic film provided on a dielectric substrate. At least a portion of the |
| 6545568 |
Dual-mode band-pass filter |
April 8, 2003 |
| A dual-mode band-pass filter having a greatly reduced size and a high design flexibility, includes a frame-shaped electrode pattern disposed on one surface or inside a dielectric substrate. A pair of input-output circuits are coupled to the frame-shaped electrode pattern. The plane s |
| 6507251 |
Dual-mode band-pass filter |
January 14, 2003 |
| In a dual-mode bandpass filter, a metal film is partially formed on one surface of a dielectric substrate or at a certain vertical level within the dielectric substrate, first and second input/output coupling circuits are coupled to the metal film, at least one capacitor is loaded to the |
| 5623237 |
Resonator and filter with a spaced away ground electrode connection stripline |
April 22, 1997 |
| A resonator having a small size and/or a high Q value, for use in forming a filter with low insertion loss in spite of its small size. According to one aspect of the invention, a resonator includes a laminated body 22. The laminated body 22 includes a first dielectric layer 24a. On one s |
| 5510802 |
Surface-mountable antenna unit |
April 23, 1996 |
| A surface-mountable antenna unit including a dielectric substrate having a rectangular plane shape which is provided on a side surface and/or a bottom surface thereof with a ground electrode, and a radiator, provided with a radiating part having a substantially rectangular plane shape, |
| 5404118 |
Band pass filter with resonator having spiral electrodes formed of coil electrodes on plurality |
April 4, 1995 |
| Coil electrodes having a U-shape and shield electrodes having a plane shape are formed on plural dielectric layers. The coil electrodes are connected via through holes which are formed through the dielectric layers, and a spiral electrode is formed. An earth terminal and an input/output |
| 5400000 |
Band-pass filter having two loop-shaped electrodes |
March 21, 1995 |
| Two coil electrode patterns are formed on one surface of a plate containing a dielectric material. These coil electrode patterns are formed in a loop shape, and disposed in a magnetically connected state with each other. Input/output terminal patterns and earth terminal patterns are draw |
| 5382927 |
Band-pass filter having two looped-shaped electrodes |
January 17, 1995 |
| Two coil electrode patterns are formed on one surface of a plate consisting of a dielectric material. These coil electrode patterns are formed in a loop shape, and are disposed so as to be magnetically coupled with each other. Input/output terminal patterns and earth terminal patterns ar |
| 5381117 |
Resonator having loop-shaped electrode |
January 10, 1995 |
| A coil electrode pattern is disposed on one surface of a plate consisting of a dielectric material. The coil electrode pattern is formed in a loop shape. An input/output terminal pattern and an earth terminal pattern are drawn out from the coil electrode pattern toward an end portion of |
| 5357227 |
Laminated high-frequency low-pass filter |
October 18, 1994 |
| A laminated high-frequency low-pass filter includes a first dielectric layer. A second dielectric layer, a third dielectric layer, a fourth dielectric layer, and a fifth dielectric layer are laminated on the first dielectric layer. An earth electrode is formed on the first dielectric |
| 5351020 |
Band-pass filter having three or more loop-shaped electrodes |
September 27, 1994 |
| Three coil electrode patterns are formed on one surface of a plate containing of a dielectric material. These coil electrode patterns are formed in loop shape, and are disposed in a magnetically connecting state with respect to each other. An input/output terminal pattern and an earth |
| 5300903 |
Band-pass filter |
April 5, 1994 |
| An earth electrode pattern is formed on one surface of a plate consisting of a dielectric material. Earth terminal patterns are extended from the earth electrode pattern to the side faces of the plate. Two coil electrode patterns are formed on both sides of the earth electrode pattern wi |
| 4894629 |
Bandpass filter having magnetically coupled resonators |
January 16, 1990 |
| A bandpass filter comprising a plurality of resonators coupled by a magnetic induction coupling. Each of the resonators includes an equivalent circuit having an LC series circuit and a capacitance element connected in parallel, the LC series circuit including one capacitance element and |
