Patents by Inventor Kimmo Kalervo Karhu
Kimmo Kalervo Karhu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230420822Abstract: There is provided a dielectric resonator structure including at least a first resonator having a body including a first, a second and a third internal cavities, wherein the first cavity is arranged between the second and the third cavity, and the body further includes a first hole extending from the first cavity through the body, and a first opening arranged between the second and the third cavity.Type: ApplicationFiled: June 22, 2023Publication date: December 28, 2023Inventor: Kimmo Kalervo Karhu
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Publication number: 20220328947Abstract: An apparatus comprising: at least one cavity filter element wherein the cavity filter element comprises a first support, a second support distinct from the first support, and a coupling element supported by the first support and the second support. In some examples, there is a series of cavity filter elements. In some examples, the cavity filter element(s) are part of a cavity filter.Type: ApplicationFiled: March 28, 2022Publication date: October 13, 2022Inventor: Kimmo Kalervo KARHU
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Patent number: 10978774Abstract: A resonator (40) for a filter comprises (i) a cavity (49) having first and second opposing conductive end walls (41, 42) and a conductive side wall (43); (ii) a conductive post (44) extending into the cavity from the first conductive end wall, the end of the conductive post remote from the first conductive end wall being provided or integral with a hollow conductive element (45) which is flared and increases in cross-section in a direction towards the second conductive end wall; and (iii) a load element (47) extending into the cavity from the second conductive end wall, the load element being flared and decreasing in cross-section in a direction away from the second conductive end wall. The end of the load element remote from the second conductive end wall extends into the end of the hollow conductive element remote from the conductive post and forms an annular gap with the hollow conductive element. The resonator has improved power-handling compared to resonators of the prior art.Type: GrantFiled: August 24, 2017Date of Patent: April 13, 2021Assignee: Nokia Technologies OYInventors: Kimmo Kalervo Karhu, Efstratios Doumanis
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Publication number: 20190312329Abstract: A resonator (40) for a filter comprises (i) a cavity (49) having first and second opposing conductive end walls (41, 42) and a conductive side wall (43); (ii) a conductive post (44) extending into the cavity from the first conductive end wall, the end of the conductive post remote from the first conductive end wall being provided or integral with a hollow conductive element (45) which is flared and increases in cross-section in a direction towards the second conductive end wall; and (iii) a load element (47) extending into the cavity from the second conductive end wall, the load element being flared and decreasing in cross-section in a direction away from the second conductive end wall. The end of the load element remote from the second conductive end wall extends into the end of the hollow conductive element remote from the conductive post and forms an annular gap with the hollow conductive element. The resonator has improved power-handling compared to resonators of the prior art.Type: ApplicationFiled: August 24, 2017Publication date: October 10, 2019Applicant: Nokia Technologies OyInventors: Kimmo Kalervo Karhu, Efstratios Doumanis
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Patent number: 10333496Abstract: There is provided a method, including obtaining information indicating at least one reference characteristic; obtaining input data, the input data relating to the output of the tunable filter; determining, based on the input data, at least one characteristic of the tunable filter; upon detecting that the at least one determined characteristic does not match with the at least one reference characteristic, determining tuning instructions for the tunable filter; and applying the tuning instructions in adjusting the tunable filter.Type: GrantFiled: October 27, 2014Date of Patent: June 25, 2019Assignee: Nokia Solutions and Networks OyInventors: Tero-Anssi Juntunen, Veikko Sakari Lukkari, Marko Tapio Oskari Isomaki, Timo Markus Karhu, Tuomo Teuvo Tapani Raty, Jarno Mikael Holopainen, Kimmo Kalervo Karhu, Jukka Kilpelainen
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Publication number: 20190140626Abstract: There is provided a method, including obtaining information indicating at least one reference characteristic; obtaining input data, the input data relating to the output of the tunable filter; determining, based on the input data, at least one characteristic of the tunable filter; upon detecting that the at least one determined characteristic does not match with the at least one reference characteristic, determining tuning instructions for the tunable filter; and applying the tuning instructions in adjusting the tunable filter.Type: ApplicationFiled: January 7, 2019Publication date: May 9, 2019Inventors: Tero-Anssi Juntunen, Veikko Lukkari, Marko Tapio Oskari Isomaki, Timo Markus Karhu, Tuomo Teuvo Tapani Raty, Jarno Mikael Holopainen, Kimmo Kalervo Karhu, Jukka Kilpelainen
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Patent number: 10283828Abstract: A first dielectric resonator component is joined to a second dielectric resonator component by bonding a first face of the first dielectric resonator component to a second face of the second dielectric resonator component. The first face has a first coupling aperture formed by removing a portion of a coating of first conductive material from the first dielectric resonator component, and the second face has a second coupling aperture formed by removing a portion of a coating of second conductive material from the second dielectric resonator component. The first coupling aperture and said second coupling aperture are aligned with one another when said first face is bonded to the second face. The first dielectric resonator component, which is slab-shaped, and the second dielectric resonator component, which is generally cubed-shaped, form a linear stack having two end faces and four side faces.Type: GrantFiled: February 1, 2017Date of Patent: May 7, 2019Assignee: Nokia Solutions and Networks OyInventors: Steven Cooper, Kimmo Kalervo Karhu, David Hendry, Kimmo Siponen, Mostafa Shabani
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Patent number: 10205214Abstract: A radio-frequency filter with at least one dielectric multi-mode resonator is provided. The resonator includes a metal housing with a top surface, a bottom surface, four sectors between the top and bottom surfaces, and including a resonator cavity therein. The resonator further includes a dielectric body positioned inside the cavity, the dielectric body having a first thickness between the top and bottom surfaces of the cavity, wherein there is a gap between the sectors of the housing and the dielectric body, the dielectric body including a hollow on the surface facing the top surface of the housing and on the surface facing the bottom surface of the housing, the dielectric body thus having a second thickness at the location of the hollows, the second thickness being smaller than the first thickness.Type: GrantFiled: March 9, 2017Date of Patent: February 12, 2019Assignee: Nokia Solutions and Networks OyInventor: Kimmo Kalervo Karhu
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Publication number: 20180219268Abstract: A first dielectric resonator component is joined to a second dielectric resonator component by bonding a first face of the first dielectric resonator component to a second face of the second dielectric resonator component. The first face has a first coupling aperture formed by removing a portion of a coating of first conductive material from the first dielectric resonator component, and the second face has a second coupling aperture formed by removing a portion of a coating of second conductive material from the second dielectric resonator component. The first coupling aperture and said second coupling aperture are aligned with one another when said first face is bonded to the second face. The first dielectric resonator component, which is slab-shaped, and the second dielectric resonator component, which is generally cubed-shaped, form a linear stack having two end faces and four side faces.Type: ApplicationFiled: February 1, 2017Publication date: August 2, 2018Inventors: Steven Cooper, Kimmo Kalervo Karhu, David Hendry, Kimmo Siponen, Mostafa Shabani
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Publication number: 20170263996Abstract: A radio-frequency filter with at least one dielectric multi-mode resonator is provided. The resonator includes a metal housing with a top surface, a bottom surface, four sectors between the top and bottom surfaces, and including a resonator cavity therein. The resonator further includes a dielectric body positioned inside the cavity, the dielectric body having a first thickness between the top and bottom surfaces of the cavity, wherein there is a gap between the sectors of the housing and the dielectric body, the dielectric body including a hollow on the surface facing the top surface of the housing and on the surface facing the bottom surface of the housing, the dielectric body thus having a second thickness at the location of the hollows, the second thickness being smaller than the first thickness.Type: ApplicationFiled: March 9, 2017Publication date: September 14, 2017Inventor: Kimmo Kalervo Karhu
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Publication number: 20170250678Abstract: There is provided a method, including obtaining information indicating at least one reference characteristic; obtaining input data, the input data relating to the output of the tunable filter; determining, based on the input data, at least one characteristic of the tunable filter; upon detecting that the at least one determined characteristic does not match with the at least one reference characteristic, determining tuning instructions for the tunable filter; and applying the tuning instructions in adjusting the tunable filter.Type: ApplicationFiled: October 27, 2014Publication date: August 31, 2017Applicant: Nokia Solutions and Networks OyInventors: Tero-Anssi JUNTUNEN, Veikko Sakari LUKKARI, Marko Tapio Oskari ISOMAKI, Timo Markus KARHU, Tuomo Teuvo Tapani RATY, Jarno Mikael HOLOPAINEN, Kimmo Kalervo KARHU, Jukka KILPELAINEN
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Publication number: 20040135654Abstract: A TE dual-mode resonator is provided. The TE dual-mode resonator has first and second modes. The resonator includes an enclosure having a cavity with an interior surface. The resonator further includes a dielectric resonator body, having a central portion with a plurality of members extending outwardly from the central portion. The dielectric resonator body is coupled directly to the interior surface.Type: ApplicationFiled: November 10, 2003Publication date: July 15, 2004Inventor: Kimmo Kalervo Karhu
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Patent number: 6650208Abstract: A TE dual-mode resonator is provided. The TE dual-mode resonator has first and second modes. The resonator includes an enclosure having a cavity with an interior surface. The resonator further includes a dielectric resonator body, having a central portion with a plurality of members extending outwardly from the central portion. The dielectric resonator body is coupled directly to the interior surface.Type: GrantFiled: June 7, 2001Date of Patent: November 18, 2003Assignee: Remec OyInventor: Kimmo Kalervo Karhu
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Publication number: 20030043000Abstract: A TE dual-mode resonator is provided. The TE dual-mode resonator has first and second modes. The resonator includes an enclosure having a cavity with an interior surface. The resonator further includes a dielectric resonator body, having a central portion with a plurality of members extending outwardly from the central portion. The dielectric resonator body is coupled directly to the interior surface.Type: ApplicationFiled: June 7, 2001Publication date: March 6, 2003Applicant: ADC Telecommunications, Inc.Inventor: Kimmo Kalervo Karhu