WIRELESS COMMUNICATION DEVICE, DISPLAY APPARATUS, TELEVISION RECEIVER AND METHOD FOR ADJUSTING RESONANCE FREQUENCY

摘要

In a wireless communication device having a sheet-like antenna 41 and a first and second covers 42, 43 covering the antenna 41, a dielectric first rib 42a that is in contact with the antenna 41 is provided on the antenna 41 side of the first cover 42. The method for adjusting a resonance frequency is as described below. The first cover 42 on which the first rib 42a is provided is molded using a mold, a resonance frequency of the antenna 41 covered with the first cover 42 thus molded is measured, and the measured resonance frequency is compared with a predetermined frequency. The mold is changed such that the contact area between the first rib 42a and the antenna 41 is increased when the measured resonance frequency is higher than the predetermined frequency, and is decreased when the measured resonance frequency is lower than the predetermined frequency.