PLATE-SHAPED INVERTED F TYPE ANTENNA AND RADIO COMMUNICATION EQUIPMENT

摘要

PROBLEM TO BE SOLVED: To provide a plate-shaped inverted F type antenna, which has a fixed gain in every direction and reduces eccentricity in directivity, and radio communication equipment provided with this plate-shaped inverted F type antenna. SOLUTION: The form of a ground pattern 8 is made into form except for an area 13 corresponding to the install position of a plate-shaped inverted F type antenna 1. Therefore, the isotropy of gain can be improved by controlling a directivity pattern to be close to non-directivity differentially from the directivity pattern of an ordinary inverted F type antenna.