公开(公告)号：US10944176B2

公开(公告)日：2021-03-09

申请号：US16089352

申请日：2017-03-28

Applicant: AGENCY FOR SCIENCE, TECHNOLOGY AND RESEARCH

Inventor： Yugang Ma ,  Pankaj Sharma ,  Ser Wah Oh

IPC: H01Q9/40 ,  H01Q1/48 ,  H01Q9/42 ,  H01Q13/16

Abstract: A low-profile wideband monopole antenna is provided. The antenna may include a radiating element configured in a bent monopole arrangement to provide a vertical polarization such that an omni-directional radiating characteristic is achieved. The radiating element may include a plurality of slots formed at or edged from each side of the radiating element to increase the effective current path length of the radiating element. The antenna may include a feed and a feeding structure extending from the radiating element to the feed. The antenna may further include a ground plane. The radiating element may be arranged substantially parallel to the ground plane. The surface area of the radiating element may be smaller than the ground plane.

公开(公告)号：US10257763B2

公开(公告)日：2019-04-09

申请号：US15327764

申请日：2015-07-22

Applicant: Agency for Science, Technology and Research ,  Power Automation Pte Ltd

Inventor： Qingjun Zhang ,  Ser Wah Oh ,  Yuen Sam Kwok ,  Sen Gopa ,  Feng Hong ,  Pankaj Sharma ,  Chong Yee Lee ,  Gim Kerk See

IPC: H04W40/12 ,  H04W16/18 ,  H04L12/64 ,  H04W88/16 ,  H04W84/18 ,  H04W40/02

Abstract: There is provided an Advanced Metering Infrastructure (AMI) system including a plurality of gate-ways interconnected by a network comprising a plurality of subnets based on one or more types of networking protocols, each of the plurality of gateways communicatively coupled to or integrated in a metering device; and a concentrator connected to the network for receiving metering data from the metering devices. The concentrator and the plurality of gateways each defines a communication node in the network. In particular, each of the gateways is configured to store a route information comprising at least a primary route information and is operable to route uplink data received based on the route information, the primary route information indicating a predetermined one of the communication nodes for the gateway to route the uplink data to next as a first priority.