Chip Antenna and method of making same

摘要

A chip antenna (10) 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 (11) of the antenna (10), as well as the type of metal material used for a conductor (12), or without limiting the sintering conditions of the above-described materials. The chip antenna (10) includes a rectangular-prism-shaped base member (11) having a mounting surface (111). A conductor (12), e.g. silver, is spirally wound inside the base member (11). A feeding terminal (13) is formed over surfaces of the base member (11) so as to feed power to the conductor (12). One end of the conductor (12) is extended to a surface of the base member (11) to form a feeding section (13), which is connected to the feeding terminal. The other end of the conductor (12) serves as a free end (15) within the base member (11). The base member (11) is produced by laminating mixture layers (16, 18, 20, 22) made from a mixture of glass essentially consisting of borosilicate having a softening point of approximately 700 DEG C and ceramic (relative dielectric constant: 60) essentially consisting of barium oxide, neodymium oxide and titanium oxide having a sintering temperature of approximately 1300 DEG C. <IMAGE>