| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna for portable radio equipment that can reduce the deterioration of its antenna characteristic when a human body, etc., approaches the end section of its enclosure even when the antenna is a wide- band 1/4λantenna, and to provide portable radio equipment. SOLUTION: This antenna for portable radio equipment is provided with an enclosure 1 containing a radio section and first and second antenna elements 10 and 11 disposed to one end section of the enclosure 1. The first antenna element 10 is constituted so that the element 10 may be fed with electricity from the vicinity of the first side face of the end section of the enclosure 1 by adjusting the length of the element 10 to about 1/4λelectrical length with respect to the used frequency. The second antenna element 11 is short-circuited near the second side face of the end section of the enclosure 1 roughly facing the first side face of the end section. In addition, the opened end sections of the first and second antenna elements 10 and 11 are faced to each other. COPYRIGHT: (C)2004,JPO
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