| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To suppress upsizing and prevent reduction in radiation power using an inexpensive and low-permittivity substrate. <P>SOLUTION: An antenna 1 includes a substrate 10 and a conductor pattern 12 formed on the substrate 10, wherein the conductor pattern 12 includes a feeding point side extension part 20 extending from the feeding point 12a by a given distance, and spiral part 22 extending spirally from an opposite end of the feeding point 12a of the feeding point side extension part 20 to a terminating open end 12b and also including the open end 12b at the open end 12b side to form an open end side extension part 23 arranged in parallel with the feeding point side extension part 20 such that electric field intensity between the mutually juxtaposing feeding point side extension part 20 and open end side extension part 23 is locally increased. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
