PURPOSE: To realize the portable radio equipment on which a filter and an antenna are mounted and made smaller and lighter than those of a conventional radio equipment and which is provided with a filter capable of easily forming a radiation conductor, a ground conductor and a feeder.
CONSTITUTION: A radiation conductor 11C is equipped on a 2nd dielectric board supported to a case of a radio equipment with a 1st dielectric board 10 and connected to the 1st dielectric board and a filter 30 connected electrically between a feeding point and a radio equipment circuit and filtering a signal sent/ received by the antenna is provided between the radiation conductor and the ground conductor in the radio equipment 1 provided with the ground conductor 20, the radiation conductor 11C provided in opposition to the ground conductor, with the antenna whose one end of radiation conductor connects to ground and having a feeding point P in a position from the grounded terminal by a prescribed distance and with the radio equipment circuit connecting electrically to the antenna.
| JPH09130106 | NOTCH FILTER |
| JPH06140805 | DIELECTRIC FILTER AND MANUFACTURE OF THE SAME |
KAWABATA KAZUYA
KAGOSHIMA KENICHI
TSUNEKAWA KOICHI
NIPPON TELEGRAPH & TELEPHONE