公开(公告)号：WO2020081010A1

公开(公告)日：2020-04-23

申请号：PCT/SG2019/050515

申请日：2019-10-17

Applicant: NATIONAL UNIVERSITY OF SINGAPORE

Inventor： HO, John ,  TEE, Benjamin ,  TIAN, Xi ,  LEE, Pui Mun

IPC: A41D13/12 ,  A61B5/00 ,  H01Q15/04 ,  G01S13/00 ,  H04W88/00

Abstract: There is provided a metamaterial textile for providing wireless sensor network and method of designing such. The metamaterial textile comprising a sheet of metamaterial textile cut into a comb shape comprising long base with a plurality of metamaterial textile teeth extending along and from the base, wherein a gap is present between every two adjacent teeth, whereby, the metamaterial textile is configured to enable propagation of radio-surface plasmons wave along the metamaterial textile for providing wireless sensor network. The metamaterial textile is configured to control the height of the radio-surface plasmons wave by changing number of the metamaterial textile teeth, and changing dimensions of the metamaterial textile teeth and changing dimensions of the gaps.

公开(公告)号：WO2019147185A1

公开(公告)日：2019-08-01

申请号：PCT/SG2019/050037

申请日：2019-01-22

Applicant: NATIONAL UNIVERSITY OF SINGAPORE

Inventor： HO, John ,  ZHANG, Yong ,  BANSAL, Akshaya ,  YANG, Fengyuan ,  TIAN, Xi

IPC: A61N5/06

Abstract: Wirelessly powered photodynamic therapy devices are disclosed and systems and methods using such devices are also disclosed. In an embodiment, a photodynamic therapy system comprises: an implantable illumination device comprising a light source configured to emit light having a spectrum which overlaps with an absorption peak of an absorption target and a receiver antenna coupled to the light source and configured to extract power from a radiofrequency power signal incident on the implantable illumination device; and a transmitter comprising an antenna, a powering module configured to generate a drive signal which causes the antenna to generate the radiofrequency power signal, and a dosimetry module coupled to the antenna and configured to detect a radiofrequency signal backscattered from the implantable illumination device and determine an indication of the power extracted by the implantable illumination device from the radiofrequency signal backscattered from the implantable illumination device.