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US 10,855,114 B2Granted
Wireless power transmission system using patch antenna
AssigneeUniversity-Industry Cooperation Group of Kyung Hee University
InventorsBom Son Lee, Sang Woong Yoon, Ju Hwan Lim, Gun Young Kim
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Abstract
Disclosed is a wireless power transmission system including a microstrip patch antenna. More particularly, a microstrip patch antenna according to an embodiment of the present disclosure includes a substrate, a patch disposed on the substrate, and a plurality of protrusions with a conical shape disposed on the patch.
Claims9
A wireless power transmission device comprising:
- a wireless charging pad part;
- a near-field power transmitter;
- a microwave power transmitter including a microstrip patch antenna;
- and
- a controller configured to control the wireless charging pad part, the near-field power transmitter and the microwave power transmitter,
- wherein the wireless charging pad part includes a plurality of power transmission coils,
- wherein the wireless charging pad part is configured to:
- verify power transmission coils to be driven matching a device to be charged among the plurality of power transmission coils,
- verify surrounding power transmission coils surrounding the power transmission coils to be driven among the plurality of power transmission coils, and
- apply a first driving voltage having a first phase to the power transmission coils to be driven and apply a second driving voltage having a second phase different from the first phase to the surrounding power transmission coils,
- wherein the microstrip patch antenna comprises:
- a substrate;
- a patch disposed on the substrate;
- and
- a plurality of protrusions with a conical shape disposed on the patch,
- wherein at least one of a number of the plurality of protrusions and a radius and height of each protrusion of the plurality of protrusions is determined such that reception power is maximized.
13 more elements
Dependencies are inferred from the claim text.