Search International and National Patent Collections

1. (WO2018137545) RECONFIGURABLE RADIAL-LINE SLOT ANTENNA ARRAY

Pub. No.:    WO/2018/137545    International Application No.:    PCT/CN2018/073238
Publication Date: Fri Aug 03 01:59:59 CEST 2018 International Filing Date: Fri Jan 19 00:59:59 CET 2018
IPC: H01Q 3/24
Applicants: HUAWEI TECHNOLOGIES CO., LTD.
Inventors: BOUTAYEB, Halim
KLEMES, Marek
HYJAZIE, Fayez
Title: RECONFIGURABLE RADIAL-LINE SLOT ANTENNA ARRAY
Abstract:
An antenna that includes a radial waveguide defining a waveguide region between opposed first and second surfaces. A radio frequency (RF) probe is disposed in the waveguide region for generating RF signals, and a plurality of radiating slot antenna elements are disposed on the first surface for emitting the RF signals from the waveguide region. A plurality of spaced apart conductive elements are disposed within the waveguide region. The antenna includes tunable elements that each include a quarter wavelength RF choke coupled through a variable capacitance and an inductive line to a respective one of the conductive elements. A plurality of DC control lines are provided, with each DC control line being connected to at least one of the tunable elements to adjust the variable capacitance thereof. A control circuit is coupled to the DC control lines and configured to selectively apply DC current values to adjust the variable capacitances of the tunable elements to control a propagation direction of the RF signals from the RF probe.