Patents by Inventor Tian Hong Loh

Tian Hong Loh 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).

  • Reflectarray antenna
    Patent number: 11695214
    Abstract: Reflectarray antenna elements, reflectarrays, and a method of operating an antenna element are described.
    Type: Grant
    Filed: July 4, 2019
    Date of Patent: July 4, 2023
    Assignee: NPL MANAGEMENT LIMITED
    Inventors: Tian Hong Loh, Ghulam Ahmad, Tim Brown, Craig Underwood
  • REFLECTARRAY ANTENNA
    Publication number: 20210184362
    Abstract: Reflectarray antenna elements, reflectarrays, and a method of operating an antenna element are described.
    Type: Application
    Filed: July 4, 2019
    Publication date: June 17, 2021
    Inventors: Tian HONG LOH, Ghulam AHMAD, Tim BROWN, Craig UNDERWOOD
  • Antenna Assembly and System
    Publication number: 20150340770
    Abstract: An antenna system includes a plurality of antenna assemblies. The antenna assemblies include a driven component and a director array to increase the gain of the antenna assembly. For each antenna assembly of the plurality of antenna assemblies, the driven component and director array are disposed in an antenna plane. Each antenna assembly is arranged in a different geometrical plane.
    Type: Application
    Filed: December 20, 2013
    Publication date: November 26, 2015
    Inventors: Tian Hong Loh, Haitao Liu, Steven Gao
  • Smart antenna
    Patent number: 8922447
    Abstract: A smart antenna assembly includes a driving monopole element and an array of parasitic monopole elements arranged in an annular array around the driving monopole element, wherein the parasitic monopole elements are of bent or curved configuration, bending or curving towards the driving monopole element. Preferably, each parasitic monopole element has a portion thereof which is parallel or substantially parallel to the driving monopole element. The assembly provides a compact steerable antenna assembly.
    Type: Grant
    Filed: November 15, 2010
    Date of Patent: December 30, 2014
    Assignee: The Secretary of State for Business Innovation & Skills
    Inventors: Tian Hong Loh, Haitao Liu, Steven Gao
  • Smart Antenna for Wireless Communications
    Publication number: 20130249761
    Abstract: A smart antenna includes a plurality of parasitic antenna elements provided with varactors, a voltage supply arranged to be coupled to the varactors and operable to supply a DC voltage, and a control unit operable to tune DC voltages applied to the varactors, wherein each parasitic antenna element can be reconfigured either as a reflector or a director on the basis of the voltage applied thereto. The driven element is surrounded by first and second 10 annular arrays of parasitic elements at radii of substantially 25 and 50 mm respectively, each annular array including six antenna elements. The array is configurable for steering the beam. The arrangement is compact and efficient.
    Type: Application
    Filed: September 27, 2011
    Publication date: September 26, 2013
    Inventors: Tian Hong Loh, Haitao Liu, Steven Gao
  • Smart Antenna
    Publication number: 20120098701
    Abstract: A smart antenna assembly includes a driving monopole element and an array of parasitic monopole elements arranged in an annular array around the driving monopole element, wherein the parasitic monopole elements are of bent or curved configuration, bending or curving towards the driving monopole element. Preferably, each parasitic monopole element has a portion thereof which is parallel or substantially parallel to the driving monopole element. The assembly provides a compact steerable antenna assembly.
    Type: Application
    Filed: November 15, 2010
    Publication date: April 26, 2012
    Inventors: Tian Hong Loh, Haitao Liu, Steven Gao