Chip antenna and method of making same

Details Chip antenna and method of making same Chip antenna and method of making same

1997-04-01

1999-04-06

Le, Hoanganh

Communications: radio wave antennas

Antennas

Spiral or helical type

343702, 343873, H01Q 124

Patent

active

058924892

ABSTRACT:
A chip antenna in which desired antenna characteristics can be obtained without restricting the type of at least one of a dielectric material and a magnetic material used for a base member of the antenna, as well as the type of metal material used for a conductor, or without limiting the sintering conditions of the above-described materials. The chip antenna includes a rectangular-prism-shaped base member having a mounting surface. A conductor, e.g. silver, is spirally wound inside the base member. A feeding terminal is formed over surfaces of the base member so as to feed power to the conductor. One end of the conductor is extended to a surface of the base member to form a feeding section, which is connected to the feeding terminal. The other end of the conductor serves as a free end within the base member. The base member is produced by laminating mixture layers made from a mixture of glass essentially consisting of borosilicate having a softening point of approximately 700.degree. C. and ceramic (relative dielectric constant: 60) essentially consisting of barium oxide, neodymium oxide and titanium oxide having a sintering temperature of approximately 1300.degree. C.

REFERENCES:
patent: 4879570 (1989-11-01), Takizawa et al.
patent: 5696517 (1997-12-01), Kawahata et al.
patent: 5764198 (1998-06-01), Tsuru et al.
Patent Abstracts of Japan, vol. 18, No. 311, Jun. 14, 1994 & JP 06 069057 A--Mar. 11, 1994 (ABSTRACT).

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