| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna, with which the bandwidth of a frequency band is widened. SOLUTION: A radiating electrode 22 composed of a conductor board is integrated on the surface of a carrier 26 made of insulating resins by insert molding, and the radiating electrode 22 is arranged away from a ground electrode 18. The radiating electrode 22 is formed practically long from with slits 22a, 22b and 22c, a power feeding point 14 and a ground electrode connecting point 16 are provided on an intermediate part eccentric to one side, and both the terminal parts are made into opened terminals. The respectively different frequency bands are transmitted/received by radiating electrode parts on both the terminal sides of the power feeding point 14. Both the terminal sides of the radiating electrode part are respectively turned by the slits 22a and 22c and the opened terminals are respectively capacitively coupled at a position away from the power feeding point 14 for 1/16 to 1/8 wavelength of the frequency band to be transmitted/received by the radiating electrode part on the side of the opened terminal. One terminal part of a spring connector 24 is pressed into the power feeding point 14 and the ground electrode connecting point 16 on the conductor board so that these points can be electrically connected to a power feeding circuit and a ground electrode 18. |
