Antenna
AssigneeNational University Corporation Ehime University
InventorsMayumi Matsunaga, Yasuhiro Yokota
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Abstract
An antenna includes a simple structure and a small null angle, which achieves communication using a circularly-polarized wave. The antenna includes a conductive wire arranged in loops in such a way as to form a cross shape. A part at which two line portions projecting outward from the center portion define a right angle is included in the loop path of the conductive wire. This part allows the antenna to transmit and receive an electromagnetic wave in all directions and have a circular polarization characteristic.
Claims2
An antenna including a conductive wire arranged in loops that form a cross shape and which has a quadrangular center portion and four projections projecting from four peripheral sides of the quadrangular center portion,
- wherein the antenna includes a loop antenna part forming a closed curve, and a bar antenna part having a plurality of spiral loops forming the cross shape and having one end electrically open, and
- a power feeding point provided at the loop antenna part in a central square of the cross shape.
Dependencies are inferred from the claim text.