Patents by Inventor Alf Friman
Alf Friman 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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Patent number: 11515631Abstract: A wideband/broadband antenna is described, comprising a dielectric substrate with a first surface with an antenna feed with two conductors, comprising a first feed connection and a second feed connection, wherein the second feed connection is or acts as the ground. A first conductive layer extends from the antenna feed in a first direction and is electrically connected to the first feed connection, wherein the first conductive layer extends in a direction away from the antenna feed, and to a first end edge. A second conductive layer extends in a second direction, away from the first conductive layer, and is electrically connected to the second feed connection. A non-conductive zone separates the first and second conductive layers. On a second surface of the substrate there is a third conductive layer which extends from a second end edge in the direction towards the antenna feed, the extent of which at least in part coincides with that of the first conducting layer at the first surface.Type: GrantFiled: September 28, 2018Date of Patent: November 29, 2022Assignee: SHORTLINK RESOURCES ABInventor: Alf Friman
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Publication number: 20200303818Abstract: A wideband/broadband antenna is described, comprising a dielectric substrate with a first surface with an antenna feed with two conductors, comprising a first feed connection and a second feed connection, wherein the second feed connection is or acts as the ground. A first conductive layer extends from the antenna feed in a first direction and is electrically connected to the first feed connection, wherein the first conductive layer extends in a direction away from the antenna feed, and to a first end edge. A second conductive layer extends in a second direction, away from the first conductive layer, and is electrically connected to the second feed connection. A non-conductive zone separates the first and second conductive layers. On a second surface of the substrate there is a third conductive layer which extends from a second end edge in the direction towards the antenna feed, the extent of which at least in part coincides with that of the first conducting layer at the first surface.Type: ApplicationFiled: September 28, 2018Publication date: September 24, 2020Inventor: Alf Friman
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Patent number: 8447240Abstract: A system and method for providing a tunable antenna system within a mobile device that enables the mobile device to receive broadcast communication signals. The antenna system includes a tunable antenna and a tuning module that is operable to selectively adjust the resonant frequency of the tunable antenna, such that the antenna may efficiently receive a plurality of discrete narrow band signals across a broad frequency spectrum. The tuning module may also include a lookup table for use by the tuning module to selectively adjust the resonant frequency of the antenna. Further, the antenna system may include a temperature compensation module that is operable to compensate for any temperature sensitive components in the tunable antenna system.Type: GrantFiled: September 18, 2008Date of Patent: May 21, 2013Assignee: Flextronics AP, LLCInventors: Alf Friman, Sverker Petersson
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Patent number: 8421695Abstract: A multi-frequency, noise optimized active antenna consisting of one or several actively tuned antennas optimized over incremental bandwidths and capable of tuning over a large total bandwidth. One or multiple impedance transformers are connected to the antennas at an optimal location, with the transformers acting to reduce the impedance for optimal coupling to a transceiver/receiver. Active components can be incorporated into the antenna structures to provide yet additional extension of the bandwidth along with increased optimization of antenna performance over the frequency range of the antenna. The radiating elements can be co-located with a ferrite material and/or active components coupled to the element to tune across a wide frequency range.Type: GrantFiled: April 12, 2010Date of Patent: April 16, 2013Assignee: Ethertronics, Inc.Inventors: Alf Friman, Xiaomeng Su, Laurent Desclos
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Patent number: 7869830Abstract: Generally, an antenna module includes a plurality of monopole antenna elements (e.g., 3 to 4 antenna elements) that can be coupled together by one or more switches to provide for a tunable, wideband antenna module. For example, the switches may change the overall length of the antenna such that the frequency range of the antenna is changed. The frequency response may also be controlled by a low voltage micro sized varicap, or a varactor diode, and instantiated as a tuned, resonant matching filter network residing with the antenna module. Additionally, switches may be used to “switch in” and “switch out” capacitive elements to adjust the bandwidth of the antenna. The resonant matching filter network may then be used for fine tuning the frequency of that bandwidth.Type: GrantFiled: December 12, 2006Date of Patent: January 11, 2011Assignee: Flextronics AP, LLCInventors: Abraham Hartenstein, Alf Friman, Bob Groppo, Martin Hakansson, Dennis Lin
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Publication number: 20110001676Abstract: An active tuned loop-coupled antenna capable of optimizing performance over incremental bandwidths and capable of tuning over a large total bandwidth to be used in wireless communications. The active loop is capable of serving as the radiating element or a radiating element can be coupled to this active loop. Multiple active tuned loops can be coupled together to extend the total bandwidth of the antenna. Active components can be incorporated into the antenna structure to provide yet additional extension of the bandwidth along with increased optimization of antenna performance over the frequency range of the antenna.Type: ApplicationFiled: September 7, 2010Publication date: January 6, 2011Inventors: Alf Friman, Sverker Petersson, Laurent Desclos, Jeffrey Shamblin
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Publication number: 20100259457Abstract: A multi-frequency, noise optimized active antenna consisting of one or several actively tuned antennas optimized over incremental bandwidths and capable of tuning over a large total bandwidth. One or multiple impedance transformers are connected to the antennas at an optimal location, with the transformers acting to reduce the impedance for optimal coupling to a transceiver/receiver. Active components can be incorporated into the antenna structures to provide yet additional extension of the bandwidth along with increased optimization of antenna performance over the frequency range of the antenna. The radiating elements can be co-located with a ferrite material and/or active components coupled to the element to tune across a wide frequency range.Type: ApplicationFiled: April 12, 2010Publication date: October 14, 2010Applicant: ETHERTRONICS, INC.Inventors: Alf Friman, Xiaomeng Su, Laurent Desclos
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Patent number: 7812774Abstract: An active tuned loop-coupled antenna capable of optimizing performance over incremental bandwidths and capable of tuning over a large total bandwidth to be used in wireless communications. The active loop is capable of serving as the radiating element or a radiating element can be coupled to this active loop. Multiple active tuned loops can be coupled together to extend the total bandwidth of the antenna. Active components can be incorporated into the antenna structure to provide yet additional extension of the bandwidth along with increased optimization of antenna performance over the frequency range of the antenna.Type: GrantFiled: May 8, 2008Date of Patent: October 12, 2010Assignee: Ethertronics, Inc.Inventors: Alf Friman, Sverker Petersson, Laurent Desclos, Jeffrey Shamblin
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Publication number: 20100228111Abstract: The present invention relates to a blood glucose meter (200) comprising a blood glucose measuring module (234) for performing a blood glucose measuring function and a wireless communication module (236) adapted establishing a wireless communication link with an external device and exchanging information with the external device via the wireless communication link according to a predetermined frequency format and protocol. The blood glucose measuring module (234) and the wireless communication module (236) are physically-separate units electrically connected in order to allow for an exchange of electrical signals corresponding to information to be transmitted by the wireless communication module and/or information received by the wireless communication module (236).Type: ApplicationFiled: November 23, 2006Publication date: September 9, 2010Inventors: Alf Friman, Enrico Tresoldi, Ulrich Kraft, Manfred Ebner, Magnus Engstorm, Fredrik Grahs
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Publication number: 20100112936Abstract: A system and method for providing a tunable antenna system within a mobile device that enables the mobile device to receive broadcast communication signals. The antenna system includes a tunable antenna and a tuning module that is operable to selectively adjust the resonant frequency of the tunable antenna, such that the antenna may efficiently receive a plurality of discrete narrow band signals across a broad frequency spectrum. The tuning module may also include a lookup table for use by the tuning module to selectively adjust the resonant frequency of the antenna. Further, the antenna system may include a temperature compensation module that is operable to compensate for any temperature sensitive components in the tunable antenna system.Type: ApplicationFiled: September 18, 2008Publication date: May 6, 2010Inventors: Alf Friman, Sverker Petersson
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Publication number: 20090322630Abstract: Described and illustrated herein are various embodiments of a blood glucose level measuring unit provided with wireless communication which both is small in dimensions and has radiation characteristics which substantially direction independent especially at small distances.Type: ApplicationFiled: May 22, 2006Publication date: December 31, 2009Applicant: LifeScan Scotland Ltd.Inventors: Alf Friman, Ulrich Kraft
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Publication number: 20090278756Abstract: An active tuned loop-coupled antenna capable of optimizing performance over incremental bandwidths and capable of tuning over a large total bandwidth to be used in wireless communications. The active loop is capable of serving as the radiating element or a radiating element can be coupled to this active loop. Multiple active tuned loops can be coupled together to extend the total bandwidth of the antenna. Active components can be incorporated into the antenna structure to provide yet additional extension of the bandwidth along with increased optimization of antenna performance over the frequency range of the antenna.Type: ApplicationFiled: May 8, 2008Publication date: November 12, 2009Inventors: Alf Friman, Sverker Petersson, Laurent Desclos, Jeffrey Shamblin
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Publication number: 20070224948Abstract: Generally, an antenna module includes a plurality of monopole antenna elements (e.g., 3 to 4 antenna elements) that can be coupled together by one or more switches to provide for a tunable, wideband antenna module. For example, the switches may change the overall length of the antenna such that the frequency range of the antenna is changed. The frequency response may also be controlled by a low voltage micro sized varicap, or a varactor diode, and instantiated as a tuned, resonant matching filter network residing with the antenna module. Additionally, switches may be used to “switch in” and “switch out” capacitive elements to adjust the bandwidth of the antenna. The resonant matching filter network may then be used for fine tuning the frequency of that bandwidth.Type: ApplicationFiled: December 12, 2006Publication date: September 27, 2007Inventors: Abraham Hartenstein, Alf Friman, Bob Groppo, Martin Hakansson, Dennis Lin
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Patent number: 4920444Abstract: An arrangement for electrically decoupling IC-circuits by means of decoupling capacitors. A particularly simple and effective electical decoupling of such circuits is achieved by mounting, e.g. gluing, a metal foil (2) on the circuit. The earth connection (3) of the circuit is connected to the edge of the foil through a short conductor and each of the signal output (4) and supply conductor (5) is connected directly to the foil edge through a respective soldered chip capacitor (7, 8).Type: GrantFiled: October 3, 1988Date of Patent: April 24, 1990Assignee: Carmis Enterprises S.A.Inventor: Alf Friman