Speedlink Technology Inc.

Che Ting Kuo

Bin Yu

Robert Hill

According to one embodiment, a waveguide antenna includes a top plane made of electrically conductive material, a bottom plane made of electrically conductive material, a first feed member coupled to the top plane and the bottom plane through a first via, the first feed member to be electrically coupled a transceiver of an electronic device, and an array of vias disposed surrounding the first via. The array of vias coupling the top plane and the bottom plane to form a cavity between the top plane and the bottom plane. When an electrical signal is provided to the first feed member, the first feed member excites a space within the cavity between the top plane and the bottom plane.

Waveguide antenna with cavity

A dipole antenna with resonant cavities operates with a resonant frequency near the antenna operating frequency to widen the operating bandwidth of the dipole antenna. Specifically, a ground consisting of multiple layers of electrically conductive planes and electrically conductive vias connecting the electrically conductive planes to form a ground wall cavity for a dipole member. The ground wall induces multiple resonant frequencies due to its coupling effect to the dipole member. A radio frequency (RF) frontend for mobile communication devices contains the dipole antenna with cavity coupled to a transceiver to receive and transmit communication signals.

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San Jose, CA, United States of America

Che Ting Kuo