MULTI-FREQUENCY ANTENNA AND DIVERSITY ANTENNA THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a multi-frequency antenna in which portability and operability can be improved by incorporating an antenna inside a radio casing and a plurality of frequency bands can be covered by dividing the antenna. SOLUTION: A printed circuit board 1 is located on the surface of a rectangular parallelepiped dielectric 2 having an arbitrary dielectric constant, and one end of each of a plurality of divided antenna elements 3a and 3b is connected to each of contacts 4a and 4b for antenna on the printed circuit board and packaged on the surface of the dielectric 2. Power is supplied to these antenna elements 3a and 3b by an antenna power feeding part 5. The contacts 4a and 4b for antenna are respectively connected to lands 4c and 4d for chip component packaging by patterns and between the lands 4c and 4d for chip component packaging, a reactance component 6 is packaged to be mounted between the antenna elements.