Chip antenna

Details Chip antenna Chip antenna

1996-09-20

1998-06-09

Le, Hoanganh T.

Communications: radio wave antennas

Antennas

Spiral or helical type

343702, 343873, H01Q 124, H01Q 136

Patent

active

057641986

ABSTRACT:
A chip antenna comprising a rectangular substrate essentially comprising barium oxide, aluminum oxide and silica; a conductor which is formed inside the substrate and spiralled along the longitudinal direction thereof; a feeding terminal provided on the side and bottom faces of the substrate so as to apply a voltage to the conductor; and a grounding terminal which is provided on the side and bottom faces of the substrate and connects to a grounding electrode on a mounting board at the time of packaging. One end of the conductor forms a feeding end connecting to the feeding terminal and the other end forms a free end in the substrate. Capacitance is generated between a portion of the conductor and the grounding terminal.

REFERENCES:
patent: 3925784 (1975-12-01), Phelan
patent: 4646366 (1987-03-01), Scholz
patent: 5627551 (1997-05-01), Tsuru et al.
Patent Abstracts of Japan, vol. 13, No. 416 (E-821), Sep. 14, 1989 & JP 01 154605 A (Coil Suneeku K.K.), Jun. 16, 1989.
Patent Abstracts of Japan, vol. 8, No. 44 (E-229), Feb. 25, 1984 & JP 58 198902 A (TDK K.K.), Nov. 19, 1983.

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