Chip antenna
AssigneeMurata Manufacturing Co., Ltd.
InventorsKoji Shiroki, Kenji Asakura
Life of this patent
Estimating the term…
Abstract
A chip antenna capable of reducing the spiral pitch of an antenna line to be smaller than that of a conventional one. Conductor patterns are electrically connected sequentially in series through via holes so as to form a spiral antenna line. The antenna line has a winding axis which is arranged either in a zigzag manner or along a straight line. Adjacent wound portions have an equal diameter or width or the adjacent portions may have unequal widths. Since adjacent via holes are arranged in a staggered arrangement with each other, the distance between the adjacent via holes is larger than the spiral pitch of the antenna line, allowing the adjacent portions to be closer together than a conventional chip antenna, thereby allowing the resonance frequency to be reduced.
Claims22
A chip antenna comprising:
- a base body;
- an antenna line disposed on or in the base body and being spirally wound;
- and
- a feed terminal disposed on a surface of the base body and being electrically connected to one end of the antenna line,
- wherein the antenna line has a winding axis which is arranged in a zigzag manner.
A chip antenna comprising:
- a base body;
- an antenna line disposed on or in the base body and being spirally wound;
- and
- a feed terminal disposed on a surface of the base body and being electrically connected to one end of the antenna line;
- wherein
- the antenna line has a substantially straight winding axis, and adjacent wound portions of the antenna line have a different length, where the length is defined as a distance extending in one direction from the substantially straight winding axis to each of the adjacent wound portions.
Dependencies are inferred from the claim text.