| 摘要 |
It is a task to reduce the length of an antenna by improving material of a module structure composing an antenna 3. A ferroelectric layer (2) is formed on the silicon board (1) and the antenna (3), composed of a conductor film, is formed on the ferroelectric layer (2). Through-holes (9) are formed on the silicon board (1). Electronic elements such as a capacitor (7), a SAW filter (8) and an inductance (6) are incorporated onto the silicon board (1) so as to compose a module structure. <IMAGE> |
