The Chinese University of Hong Kong

Zhen-Yuan Zhang

Ke-Li Wu

Dacheng Wei

A magnetic current dipole feeding structure for patch and dielectric resonator antennas is disclosed in which a wire coil helix is placed above the ground plane and below the patch or top of the dielectric resonator block, the coil having half wound in a right-hand orientation and another half in a left-hand orientation, meeting at a common point in the middle. One end of the double torsion coil can be excited with radio frequency (RF) signals, and the other can be grounded on the ground plane. Some embodiments have the other end fed by an equal signal. These double torsion coils can be used in pairs to provide differential feeding to the patch or dielectric resonator, and pairs placed orthogonally to a first pair can be used for another polarization.

Double torsion coil magnetic current antenna feeding structure

Disclosed is an air-filled patch antenna, comprising: a ground plane; a patch arranged to be in parallel to the ground plane; four inherent metal legs extending from the patch perpendicularly, wherein each of distal ends of the four legs is electrically and mechanically connected to the ground plane; and a feeding structure configured to provide a signal interface to the antenna.

Growing community of inventors

Changzhou, China

Zhen-Yuan Zhang