| 摘要 |
PROBLEM TO BE SOLVED: To obtain a shield structure for a radio-frequency apparatus capable of improving signal quality with a simple construction by suppressing the radio- frequency components leaking out of a radio-frequency oscillating source used in a frequency converter and the like. SOLUTION: A shielding structure comprises a shield case 2, within which a radio-frequency oscillating source 2 is placed, a chassis 5 for mounting the shield case 3 and electrically connected to the lower surface of a shield case 3, a case cover 7 facing opposite the upper surface 3a of the shield case 3 in which a metal sheet 6 is adhered to the inside via a nonconductive coating, and a spring member 4 which protrudes from the upper surface 3a of the shield case 3 and coming in electrical contact with the metal sheet 6. Radio-frequency components leaking out of the radio-frequency oscillating source 2 is propagated as radio-frequency wave from the upper surface 3a of the shield case 3 to the case cover 7 via the spring member 4 and the metal sheet 6 and discharged into the ground potential.
|
