Patent ID: 6876841

Claim:
A communication apparatus comprising: a radio frequency circuit module, and a mother board having one surface with said radio frequency circuit module mounted thereto, said radio frequency circuit module including: a shielding frame, a printed circuit board having one and the other surfaces and accommodated in and held by said shielding frame, a circuit component mounted on said one surface of said printed circuit board, and a shielding conductor arranged on said other surface of said printed circuit board or inside said printed circuit board and having a shape substantially matching a planar shape of said printed circuit board, wherein said radio frequency circuit module is mounted on said one surface of said mother board such that said one surface of said printed circuit board faces said one surface of said mother board; a shielding conductor arranged on said one surface of said mother board where said radio frequency circuit module is mounted; and another shielding conductor surrounding said shielding conductor arranged on said one surface of said mother board where said radio frequency circuit module is mounted, said another shielding conductor being joined to said shielding frame.