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US 6,016,090 AGranted
Dielectric resonator apparatus and high-frequency module
AssigneeMurata Manufacturing Co., Ltd.
InventorsKenichi Iio, Koichi Sakamoto, Sadao Yamashita, Toshihiro Hiratsuka, Tomiya Sonoda, Shigeyuki Mikami
Life of this patent
Estimating the term…
Abstract
A dielectric substrate is provided on both its main surfaces with conductors each having two circular openings such that the openings on both main surfaces oppose each other. On one conductor of the dielectric substrate, an insulating layer is formed. On the insulating layer, an input electrode and an output electrode are formed. Electrically conductive plates are disposed and secured such that they sandwich the dielectric substrate with gaps therebetween.
Claims34
A dielectric resonator comprising:
- a dielectric substrate;
- a first conductor formed on one main surface of said dielectric substrate;
- a second conductor formed on the other main surface of said dielectric substrate;
- a first opening formed in said first conductor such that said dielectric substrate is exposed through said first conductor;
- a second opening formed in said second conductor such that said dielectric substrate is exposed through said second conductor;
- said dielectric substrate between said first and second openings forming said resonator;
- a first electrically conductive plate disposed with a gap from said first conductor so as to cover at least said first opening;
- a second electrically conductive plate disposed with a gap from said second conductor so as to cover at least said second opening;
- an insulating member formed on at least one of said first conductor and said second conductor;
- and
- a signal input/output electrode formed on said insulating member and electromagnetically coupled to said resonator.
8 more elements
A dielectric resonator comprising:
- a dielectric substrate;
- a first conductor formed on one main surface of said dielectric substrate;
- a second conductor formed on the other main surface of said dielectric substrate;
- a first opening formed in said first conductor such that said dielectric substrate is exposed through said first conductor;
- a second opening formed in said second conductor such that said dielectric substrate is exposed through said second conductor;
- a first electrically conductive plate disposed with a gap from said first conductor so as to cover at least said first opening;
- a second electrically conductive plate disposed with a gap from said second conductor so as to cover at least said second opening;
- an insulating member formed on at least one of said first conductor and said second conductor;
- and
- a wiring electrode formed on said insulating member;
- wherein said wiring electrode is formed so as to overlap with at least one of said first opening and said second opening.
8 more elements
A dielectric resonator comprising:
- a dielectric substrate;
- a first conductor formed on one main surface of said dielectric substrate;
- a second conductor formed on the other main surface of said dielectric substrate;
- a first opening formed in said first conductor such that said dielectric substrate is exposed through said first conductor;
- a second opening formed in said second conductor such that said dielectric substrate is exposed through said second conductor;
- a first electrically conductive plate disposed with a gap from said first conductor so as to cover at least said first opening;
- a second electrically conductive plate disposed with a gap from said second conductor so as to cover at least said second opening;
- an insulating member formed on at least one of said first conductor and said second conductor;
- and
- a wiring electrode formed on said insulating member;
- wherein said second electrically conductive plate includes a first ceramic substrate in which an external terminal is formed, a recessed portion is formed at a position different from said external terminal, and an electrically conductive member is formed at the bottom of said recessed portion;
- a second ceramic substrate which has a hole larger than the recessed portion of said first ceramic substrate and which is laminated on said first ceramic substrate such that the external terminal and the recessed portion of said first ceramic substrate are exposed by said hole;
- and an accommodation section formed on the recessed portion of said first ceramic substrate and the hole of said second ceramic substrate, said dielectric substrate being accommodated therein with the surface on which said wiring electrode is formed being placed downward such that a part of said wiring electrode is directly connected to said external terminal.
10 more elements
A high-frequency module comprising:
- a dielectric substrate;
- a first conductor formed on one main surface of said dielectric substrate;
- a second conductor formed on the other main surface of said dielectric substrate;
- a first opening formed in said first conductor;
- a second opening formed in said second conductor;
- said dielectric substrate between said first and second openings forming a resonator;
- a first electrically conductive plate disposed with a gap from said first conductor so as to cover at least said first opening;
- a second electrically conductive plate disposed with a gap from said second conductor so as to cover at least said second opening;
- an insulating member formed on at least one of said first conductor and said second conductor;
- a signal input/output electrode formed on said insulating member and electromagnetically coupled to said resonator;
- and
- an electronic component connected to said signal input/output electrode.
9 more elements
A high-frequency module comprising:
- a dielectric substrate;
- a first conductor formed on one main surface of said dielectric substrate;
- a second conductor formed on the other main surface of said dielectric substrate;
- a first opening formed in said first conductor;
- a second opening formed in said second conductor;
- a first electrically conductive plate disposed with a gap from said first conductor so as to cover at least said first opening;
- a second electrically conductive plate disposed with a gap from said second conductor so as to cover at least said second opening;
- an insulating member formed on at least one of said first conductor and said second conductor;
- a wiring electrode formed on said insulating member;
- and
- an electronic component connected to said wiring electrode;
- wherein said wiring electrode is formed so as to overlap with at least one of said first opening and said second opening.
9 more elements
A high-frequency module comprising:
- a dielectric substrate;
- a first conductor formed on one main surface of said dielectric substrate;
- a second conductor formed on the other main surface of said dielectric substrate;
- a first opening formed in said first conductor;
- a second opening formed in said second conductor;
- a first electrically conductive plate disposed with a gap from said first conductor so as to cover at least said first opening;
- a second electrically conductive plate disposed with a gap from said second conductor so as to cover at least said second opening;
- an insulating member formed on at least one of said first conductor and said second conductor;
- a wiring electrode formed on said insulating member;
- and
- an electronic component connected to said wiring electrode;
- wherein said second electrically conductive plate includes a first ceramic substrate in which an external terminal is formed, a recessed portion is formed at a position different from said external terminal, and an electrically conductive member is formed at the bottom of said recessed portion;
- a second ceramic substrate which has a hole larger than the recessed portion of said first ceramic substrate and which is laminated on said first ceramic substrate such that the external terminal and the recessed portion of said first ceramic substrate are exposed by said hole;
- and an accommodation section formed of the recessed portion of said first ceramic substrate and the hole of said second ceramic substrate, said dielectric substrate being accommodated therein with the surface on which said wiring electrode is formed being placed downward such that a part of said wiring electrode is directly connected to said external terminal.
11 more elements
A dielectric filter comprising:
- a dielectric substrate;
- a first conductor formed on one main surface of said dielectric substrate;
- a second conductor formed on the other main surface of said dielectric substrate;
- a first opening formed in said first conductor;
- a second opening formed in said second conductor;
- a first electrically conductive plate disposed with a gap from said first conductor so as to cover at least said first opening;
- a second electrically conductive plate disposed with a gap from said second conductor so as to cover at least said second opening;
- a resonant section determined by said first opening and said second opening;
- an insulating member formed on at least one of said first conductor and said second conductor;
- and
- input and output electrodes formed on said insulating member and electromagnetically coupled with said resonant section.
8 more elements
A dielectric filter comprising:
- a dielectric substrate;
- a first conductor formed on one main surface of said dielectric substrate;
- a second conductor formed on the other main surface of said dielectric substrate;
- a first opening formed in said first conductor;
- a second opening formed in said second conductor;
- a first electrically conductive plate disposed with a gap from said first conductor so as to cover at least said first opening;
- a second electrically conductive plate disposed with a gap from said second conductor so as to cover at least said second opening;
- a resonant section determined by said first opening and said second opening;
- an insulating member formed on at least one of said first conductor and said second conductor;
- and
- input and output electrodes formed on said insulating member and electromagnetically coupled with said resonant section;
- wherein said input and output electrodes are formed so as to overlap with at least one of said first opening and said second opening.
9 more elements
A dielectric filter comprising:
- a dielectric substrate;
- a first conductor formed on one main surface of said dielectric substrate;
- a second conductor formed on the other main surface of said dielectric substrate;
- a first opening formed in said first conductor;
- a second opening formed in said second conductor;
- a first electrically conductive plate disposed with a gap from said first conductor so as to cover at least said first opening;
- a second electrically conductive plate disposed with a gap from said second conductor so as to cover at least said second opening;
- a resonant section determined by said first opening and said second opening;
- an insulating member formed on at least one of said first conductor and said second conductor;
- and
- input and output electrodes formed on said insulating member and electromagnetically coupled with said resonant section;
- wherein said second electrically conductive plate includes a first ceramic substrate in which an external terminal is formed, a recessed portion is formed at a position different from said external terminal, and an electrically conductive member is formed at the bottom of said recessed portion;
- a second ceramic substrate which has a hole larger than the recessed portion of said first ceramic substrate and which is laminated on said first ceramic substrate such that the external terminal and the recessed portion of said first ceramic substrate are exposed by said hole;
- and an accommodation section formed of the recessed portion of said first ceramic substrate and the hole of said second ceramic substrate, said dielectric substrate being accommodated therein with the surface on which said input and output electrodes are formed being placed downward such that a part of said input and output electrodes is directly connected to said external terminal.
11 more elements
A dielectric filter comprising:
- a dielectric substrate;
- a first conductor formed on one main surface of said dielectric substrate;
- a second conductor formed on the other main surface of said dielectric substrate;
- a plurality of first openings formed in said first conductor;
- a plurality of second openings formed in said second conductor;
- a first electrically conductive plate disposed with a gas from said first conductor so as to cover at least said first openings;
- a second electrically conductive plate disposed with a gap from said second conductor so as to cover at least said second openings;
- a plurality of resonant sections determined respectively by said corresponding pluralities of first openings and second openings;
- an insulating member formed on at least one of said first conductor and said second conductor;
- and
- input and output electrodes formed on said insulating member and electromagnetically coupled with said resonant sections;
- further comprising a coupling electrode formed on said insulating member and electromagnetically coupling between corresponding ones of the plurality of resonant sections.
9 more elements
A dielectric duplexer comprising:
- a dielectric substrate;
- a first conductor formed on one main surface of said dielectric substrate;
- a second conductor formed on the other main surface of said dielectric substrate;
- a plurality of first openings formed in said first conductor;
- a plurality of second openings formed in said second conductor;
- a first electrically conductive plate disposed with a gap from said first conductor so as to cover at least said plurality of first openings;
- a second electrically conductive plate disposed with a gap from said second conductor so as to cover at least said plurality of second openings;
- a plurality of resonant sections determined by said plurality of first openings and said plurality of second openings;
- a first filter formed of a first resonant section group in said plurality of resonant sections;
- a second filter formed of a second resonant section group different from said first resonant section group in said plurality of resonant sections;
- an insulating member formed on at least one of said first conductor and said second conductor;
- an input electrode of said first filter, formed on said insulating member;
- an output electrode of said second filter, formed on said insulating member;
- and
- an antenna electrode formed on said insulating member, serving as both an output electrode of said first filter and an input electrode of said second filter.
12 more elements
An oscillator comprising:
- a dielectric substrate;
- a first conductor formed on one main surface of said dielectric substrate;
- a second conductor formed on the other main surface of said dielectric substrate;
- a first opening formed in said first conductor;
- a second opening formed in said second conductor;
- a first electrically conductive plate disposed with a gap from said first conductor so as to cover at least said first opening;
- a second electrically conductive plate disposed with a gap from said second conductor so as to cover at least said second opening;
- a resonant section determined by said first opening and said second opening;
- an insulating member formed on at least one of said first conductor and said second conductor;
- a main line formed on said insulating member and electromagnetically coupled with said resonant section, constituting a feedback circuit;
- and
- a negative-resistance circuit connected to said feedback circuit.
9 more elements
Dependencies are inferred from the claim text.