| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a card type circuit device that reinforces shielding of the high-frequency circuit part, and improves its receiving sensitivity and the signal-to-noise ratio. SOLUTION: This card type circuit device 100 has two legs 2 that are provided with slits 2a and 2b along them on the front surface side and the back surface side. The card type circuit device 100 also has a frame 1 that has connecting members 3b to connect the two legs 2; a card substrate 10 that has electronic circuits and is mounted on the frame 1; and the front and back metal covers 20a and 20b that have protrusions 21 and 22 on both ends and are mounted on the frame 1, by inserting the protrusions 21 and 22 into the slits 2a and 2b on the frame 1 in order to cover the electronic circuits on the card substrate 10. A shield reinforcing plate 30 is provided to bridge the legs 2 of the frame 1 and connected electrically with the internal surface of the metal cover 20a and connected directly or indirectly to earth lands 16.</p> |
