City University of Hong Kong

Other

The South China University of Technology

Bigo Technology Pte. Ltd.

Kai Lu

Kwok Wa Leung

Li Wei Wang

Xin Tian

Nan Yang

Yong Mei Pan

Zhen-Xing Xia

Jianxun Xu

Zhiyi Zhang

Chen Yang

Zhili Su

Shuyan Jiang

An antenna for a phased array antenna. The antenna includes a substrate, a radiation element arranged on the substrate, and a radiation pattern shaping mechanism operable to reduce central radiation provided by the radiation element during operation.

Phased array antenna and antenna for phased array antenna

A lens for a horn antenna and a horn antenna including the lens. The lens includes a generally flared plate assembly extending generally along an axis from a first side to a second side opposite the first side. The generally flared plate assembly defines a plurality of non-linear channels that are operable to manipulate an electromagnetic wave received at the first side to provide a manipulated electromagnetic wave at the second side.

Horn antenna and lens for horn antenna

A multi-polarization antenna includes a plurality of antenna elements and a dielectric arrangement operably coupled with the plurality of antenna elements. The dielectric arrangement is arranged to cooperate with the plurality of antenna elements to (i) facilitate transmission and/or receive of, at least, electromagnetic waves with a first polarization, electromagnetic waves with a second polarization different from the first polarization, and electromagnetic waves with a third polarization different from the first polarization and the second polarization, and (ii) reduce, limit, and/or eliminate mutual coupling between at least some of the plurality of antenna elements during operation. The first, second, and third polarizations are non-orthogonal.

Multi-polarization antenna and multi-polarization antenna array

An omnidirectional biconical antenna, which includes a first funnel-shaped plate having a wide end and a narrow end; a second funnel-shaped plate having a wide end and a narrow end; and an annular metal lens delimited by the second funnel-shaped plate and the first funnel-shaped plate. The second funnel-shaped plate is inversely positioned relative to the first funnel-shaped plate, such that the narrow ends of the second funnel-shaped plate and the first funnel-shaped plate point to each other.

Wideband high-gain omnidirectional biconical antenna for millimeter-wave applications

Provided is a method for playing a plurality of videos, including: creating a sliding window with a preset length according to a first to-be-played video in the plurality of videos, wherein the sliding window comprises the first to-be-played video and a preset number of second to-be-played videos; preloading each video in the sliding window by each of video players; preloading the first to-be-played video by one of the video players and playing the first to-be-played video as a currently playing video, wherein the second to-be-played videos are preloaded by other video players; and playing one of the second to-be-played videos by calling a video player interface corresponding to the second to-be-played video in the sliding window in response to the currently playing video being switched to the second to-be-played video.

Method for playing a plurality of videos, storage medium and computer device

The invention discloses a plotting method for a three-dimensional time-space diagram showing a regional green-wave coordinated control effect. The plotting method includes the following steps: establishing a coordinate system of the three-dimensional time-space diagram; determining a specific position coordinate of each intersection in the coordinate system of the three-dimensional time-space diagram; generating a time prism of a signal timing plan of each intersection; determining a green-wave bandwidth of each arterial road; and generating a driving trajectory between the intersections, and making a green-wave band of each arterial road, and completing plotting.

Plotting method for three-dimensional time-space diagram showing regional green-wave coordinated control effect

A dielectric resonator antenna and a dielectric resonator antenna array. The dielectric resonator antenna includes a ground plane, a dielectric resonator element operably coupled with the ground plane, and a feed network operably coupled with the dielectric resonator element for exciting the dielectric resonator antenna to provide a wideband omnidirectional response. The dielectric resonator element includes a plurality of portions, including, at least, an innermost portion and an outermost portion arranged around the innermost portion. The innermost portion has a first effective dielectric constant and outermost portion has a second, different effective dielectric constant.

Wideband omnidirectional dielectric resonator antenna

A parallel-plate antenna or antenna array suitable for operation at millimeter wave frequencies. The antenna includes an antenna element having a ground plane with a slot and a pair of parallel plates connected to the ground plane. The parallel plates extend generally perpendicularly from the ground plane. In plan view, the slot is arranged between the parallel plates. The antenna also includes a feed operably coupled with the slot for feeding the slot during operation so as to generate a circularly polarized signal for radiation.

Parallel-plate antenna

A horn antenna includes a waveguide portion and an antenna portion operably connected with the waveguide portion. The waveguide portion has a feed port. The antenna portion is arranged to receive a linearly polarized signal from the waveguide portion and to convert the received linearly polarized signal to a circularly polarized signal for transmission.

Horn antenna

An elliptically polarized (EP) dielectric block antenna comprises a linearly polarized (LP) dielectric block antenna and a wave polarizer integrated with the LP dielectric block antenna. The wave polarizer converts the LP wave of the LP dielectric block antenna into an EP wave or a circularly polarized (CP) wave. The wave polarizer is directly integrated with the LP dielectric block antenna by fabricating inclined slots on faces of the dielectric block at an oblique angle to the LP wave direction of polarization. This provides a very compact EP or CP antenna with a broadside or omnidirectional radiation pattern. The EP or CP antenna is excited by an inner conductor of a SubMiniature version A (SMA) connector that can be directly connected to a coaxial line thereby providing a simple feed network for the antenna.

Growing community of inventors

Hong Kong, China

Kai Lu