公开(公告)号：US10732476B2

公开(公告)日：2020-08-04

申请号：US15978370

申请日：2018-05-14

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Senad Bulja ,  Rose Kopf ,  Florian Pivit ,  Wolfgang Templ

IPC: G02F1/15 ,  G02F1/1523 ,  G02F1/153 ,  G02F1/155

Abstract: An electrochromic (EC) cell having improved dielectric tunability and lower dielectric losses is disclosed. A multi-layer structure includes at least one electrochromic layer of a transition metal oxide between electrode layers. Two electrolyte layers are located on either side of the at least one electrochromic layer and next to the electrode layers. An ion storage film layer of a transition metal oxide may be provided between the electrochromic layer and one of the electrolyte layers. This structure prevents the shortening of the channel height when a voltage is applied therefore reducing dielectric losses.

公开(公告)号：US11594795B2

公开(公告)日：2023-02-28

申请号：US17005652

申请日：2020-08-28

Applicant: Nokia Solutions and Networks Oy

Inventor： Senad Bulja ,  Wolfgang Templ ,  Florian Pivit ,  Dirk Wiegner ,  Anna Zakrzewska ,  Pawel Rulikowski ,  Rose Kopf

IPC: H01P1/10 ,  H01P1/18 ,  H03B5/12 ,  H01Q15/00 ,  H01P1/11

Abstract: A switchable element, a device and a method for analogue and programmable computing operating on electromagnetic waves having a frequency, wherein the switchable element is configured to configured to, in response to an activation signal, switch from having a first dielectric permittivity for electromagnetic waves having a frequency to having a second dielectric permittivity for electromagnetic waves having the frequency, and the device comprises a plurality of the switchable elements that are adapted to be switched individually in accordance with the computing operation.

公开(公告)号：US20210063833A1

公开(公告)日：2021-03-04

申请号：US17005652

申请日：2020-08-28

Applicant: Nokia Solutions and Networks Oy

Inventor： Senad Bulja ,  Wolfgang Templ ,  Florian Pivit ,  Dirk Wiegner ,  Anna Zakrzewska ,  Pawel Rulikowski ,  Rose Kopf

IPC: G02F1/1523 ,  H01P1/18 ,  H03B5/12 ,  G02B5/30 ,  G02F1/153

Abstract: A switchable element, a device and a method for analogue and programmable computing operating on electromagnetic waves having a frequency, wherein the switchable element is configured to configured to, in response to an activation signal, switch from having a first dielectric permittivity for electromagnetic waves having a frequency to having a second dielectric permittivity for electromagnetic waves having the frequency, and the device comprises a plurality of the switchable elements that are adapted to be switched individually in accordance with the computing operation.

公开(公告)号：US10187107B1

公开(公告)日：2019-01-22

申请号：US15959564

申请日：2018-04-23

Applicant: NOKIA SOLUTIONS AND NETWORKS OY

Inventor： Senad Bulja ,  Rose Kopf

IPC: H04B7/02 ,  H01P1/10 ,  H01P1/18 ,  H04B1/40 ,  H04B1/44 ,  G02F1/161 ,  G02F1/15 ,  G02F1/163

Abstract: An electrochromic (EC) switch is disclosed and claimed. The EC switch includes an EC region and an electrolyte region separated by a dielectric region on a ground plane. A microstrip configured to transmit an RF signal is adjacent to and in electrical contact with the EC region. A conductive pad is adjacent to the electrolyte region and a bias line couples the microstrip to the electrolyte region. Voltages applied between the ground plane and the conductive pad and between the conductive pad and the bias line switch the microstrip. The EC switch may be incorporated within a wide variety of RF devices, for example, attenuators, phase shifters and antennas.