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公开(公告)号：US20210075079A1
公开(公告)日：2021-03-11
申请号：US16562871
申请日：2019-09-06
Applicant: Nokia Technologies Oy
Inventor： Dirk Wiegner , Wolfgang Templ , Senad Bulja , Rose F. Kopf
Abstract: An electrically controllable RF-circuit element that includes at least one layer of an electrochromic material sandwiched between two corresponding layers of a solid-electrolyte material and placed adjacent and along a length of RF transmission line. In one example embodiment, the electrically controllable RF-circuit element operates as a tunable band-stop (e.g., notch) filter whose stop band can be spectrally moved by changing one or more dc-bias voltages applied across the corresponding layer stack(s). In another example embodiment, the elecyrically controllable RF-circuit element operates as a tunable phase shifter whose phase-shifting characteristics can be changed by changing one or more dc-bias voltages applied across the corresponding layer stack(s).
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公开(公告)号：US11678582B2
公开(公告)日：2023-06-13
申请号：US16837717
申请日：2020-04-01
Applicant: Nokia Technologies OY
Inventor： Senad Bulja , Dirk Wiegner , Wolfgang Templ , Rose F Kopf
IPC: H01L41/47 , H01L27/20 , H01L41/04 , H01L41/047 , H01L41/09 , H01L41/193 , G06F17/14
CPC classification number: H01L27/20 , H01L41/042 , H01L41/0475 , H01L41/0986 , H01L41/193 , G06F17/14
Abstract: An apparatus includes a dielectric tile array including a plurality of dielectric tiles; and a plurality of electroactive (EA) material blocks configured to expand or contract in response to being actuated by the application of an actuation voltage.
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公开(公告)号：US11264720B2
公开(公告)日：2022-03-01
申请号：US16665578
申请日：2019-10-28
Applicant: Nokia Technologies Oy
Inventor： Dirk Wiegner , Wolfgang Templ , Senad Bulja , Rose F. Kopf
Abstract: An electrically controllable RF circuit that includes an EC cell and an EAP-based actuator configured to produce relative movement of an electrode of the electrochromic cell and an electrically conducting patch or another electrode electromagnetically coupled thereto. In one embodiment, the RF circuit operates as a tunable patch antenna whose frequency characteristics can be changed by changing the bias voltages applied to the EC cell and EAP-based actuator. Advantageously, the capability to tune the antenna using two different tuning mechanisms (i.e., a dielectric-permittivity based tuning mechanism implemented using the EC cell and a geometry-based tuning mechanism implemented using the EAP-based actuator) provides more degrees of control over the pertinent antenna characteristics compared to what is available in some other antenna designs. In another embodiment, the RF circuit can operate as a tunable RF filter whose frequency characteristics can similarly be changed using these two different tuning mechanisms.
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公开(公告)号：US12237875B2
公开(公告)日：2025-02-25
申请号：US17448966
申请日：2021-09-27
Applicant: NOKIA TECHNOLOGIES OY
Inventor： Kim Nielsen , Senad Bulja , Bent Henneberg Rysgaard
IPC: H04B17/345 , H04W36/14 , H04W36/30
Abstract: Circuitry comprising: a first radio path comprising a first filter configured for a first radio access technology (RAT) system; a second radio path comprising a second filter configured for a second radio access technology (RAT) system different to the first RAT system; means for obtaining a first indicator, dependent on the first RAT system, wherein the first indicator is one of a predetermined number of states; means for obtaining a second indicator, dependent on the second RAT system wherein the second indicator is one of a predetermined number of states; and means for using a combination of the states of the first indicator and the second indicator to control characteristics of at least the first filter.
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公开(公告)号：US11888457B2
公开(公告)日：2024-01-30
申请号：US17448983
申请日：2021-09-27
Applicant: NOKIA TECHNOLOGIES OY
Inventor： Senad Bulja , Kim Nielsen
CPC classification number: H03H1/00 , H01P1/18 , H04B1/0067
Abstract: Circuitry comprising: a first resonant radio frequency conductive path between a first node and a third node; a second resonant radio frequency conductive path between a second node and the third node; an internode radio frequency conductive path between the first node and the second node; a shunt resonant element coupled to the third node and shared by the first resonant radio frequency conductive path and the second resonant radio frequency conductive path; and a phase shift element for introducing a relative phase shift to the first resonant radio frequency conductive path relative to the second resonant radio frequency conductive path.
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Patent Agency Ranking
公开(公告)号：US11063335B2
公开(公告)日：2021-07-13
申请号：US16468893
申请日：2017-12-08
Applicant: Nokia Technologies Oy
Inventor： Efstratios Doumanis , Senad Bulja
Abstract: A resonator assembly and method are disclosed. The resonator assembly comprises: a resonant chamber defined by a first wall, a second wall opposing the first wall and side walls extending between the first wall and the second wall; a first resonator comprising a first resonator element and a first resonator cap, the first resonator element having a first grounded end and an first open end, the first resonator element being grounded at the first grounded end on the first wall and extending into the resonant chamber, the first resonator cap having a first grounded portion and an first open portion, the first resonator cap being grounded at the first grounded portion on the second wall and extending into the resonant chamber to at least partially surround the first open end of the first resonator element with the first open portion for electrical field loading of the first resonator element by the first resonator cap; and a second resonator comprising a second resonator element and a second resonator cap located for electrical field loading of the second resonator element by the second resonator cap, the second resonator element being located for magnetic field coupling between the first resonator element and the second resonator element. In this way, a compact resonator assembly is provided having high operational performance. The provision of resonators having resonator elements and resonator caps helps to reduce the height of the resonator assembly to around one eighth of the operating wavelength. The provision of the resonator caps helps to contain the electrical field from the resonator elements, which enables adjacent resonator elements to be located closer together to provide for enhanced magnetic field coupling therebetween.
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公开(公告)号：US20220131251A1
公开(公告)日：2022-04-28
申请号：US17507045
申请日：2021-10-21
Applicant: Nokia Technologies Oy
Inventor： Dirk Wiegner , Wolfgang Templ , Senad Bulja , Rose Kopf
Abstract: An apparatus that is a voltage-controlled splitting and/or switching apparatus comprising a waveguide for a radio frequency signal comprising at least one input and at least two outputs, wherein the waveguide is a cavity waveguide or a polymer microwave fiber waveguide, and the waveguide comprises at least a first branch and a second branch, at least one element comprising voltage reactive material in between electrodes and extending, at least partly, across at least one of the first branch and the second branch, and a voltage control caused to apply voltage to the at least one element.
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公开(公告)号：US11139544B2
公开(公告)日：2021-10-05
申请号：US16562871
申请日：2019-09-06
Applicant: Nokia Technologies Oy
Inventor： Dirk Wiegner , Wolfgang Templ , Senad Bulja , Rose F. Kopf
Abstract: An electrically controllable RF-circuit element that includes at least one layer of an electrochromic material sandwiched between two corresponding layers of a solid-electrolyte material and placed adjacent and along a length of RF transmission line. In one example embodiment, the electrically controllable RF-circuit element operates as a tunable band-stop (e.g., notch) filter whose stop band can be spectrally moved by changing one or more dc-bias voltages applied across the corresponding layer stack(s). In another example embodiment, the electrically controllable RF-circuit element operates as a tunable phase shifter whose phase-shifting characteristics can be changed by changing one or more dc-bias voltages applied across the corresponding layer stack(s).
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公开(公告)号：US20210124231A1
公开(公告)日：2021-04-29
申请号：US16665578
申请日：2019-10-28
Applicant: Nokia Technologies Oy
Inventor： Dirk Wiegner , Wolfgang Templ , Senad Bulja , Rose F. Kopf
IPC: G02F1/163 , H01Q3/26 , H01Q9/04 , H01Q9/06 , H01L41/193
Abstract: An electrically controllable RF circuit that includes an EC cell and an EAP-based actuator configured to produce relative movement of an electrode of the electrochromic cell and an electrically conducting patch or another electrode electromagnetically coupled thereto. In one embodiment, the RF circuit operates as a tunable patch antenna whose frequency characteristics can be changed by changing the bias voltages applied to the EC cell and EAP-based actuator. Advantageously, the capability to tune the antenna using two different tuning mechanisms (i.e., a dielectric-permittivity based tuning mechanism implemented using the EC cell and a geometry-based tuning mechanism implemented using the EAP-based actuator) provides more degrees of control over the pertinent antenna characteristics compared to what is available in some other antenna designs. In another embodiment, the RF circuit can operate as a tunable RF filter whose frequency characteristics can similarly be changed using these two different tuning mechanisms.
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公开(公告)号：US10903568B2
公开(公告)日：2021-01-26
申请号：US16196517
申请日：2018-11-20
Applicant: NOKIA TECHNOLOGIES OY
Inventor： Senad Bulja , Rose Kopf , Robert Cahill , Majid Norooziarab
Abstract: An antenna element includes a patch antenna and a microstrip line separated by an electrochromic material to tune the element. A reflectarray of a plurality of antenna elements is formed on a substrate. The dielectric permitivities of the electrochromic material may be controlled both during manufacture and during operation of the antenna to provide a phase shift to the antenna elements and beamform a signal radiated by the antenna. A bias line may be used to change a shape, direction or circular polarity of a beam radiating from the antenna.
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