Abstract: A card device that is loaded in a mobile communication terminal and is used for wireless communication, includes a transmission and reception circuit that generates a transmission signal to be transmitted in a wireless manner based on transmission data, and processes a received signal that has been received in the wireless manner; a first antenna that is used for signal transmission and reception in the wireless manner; an antenna terminal that is connected with a second antenna that is provided in the outside of the card device; and a switch that connects in a switching manner one of the first antenna and the antenna terminal to the transmission and reception circuit.

Abstract: A card type wireless communication module, includes a board; a plurality of terminals formed on the board, the terminals including an external antenna terminal, the terminals having a plating process applied thereto; and a ground pattern formed on the board; wherein a feeding wiring pattern arrangement area is formed between forming positions of the terminals on the board and a forming position of the ground pattern, the feeding wiring pattern arrangement area has a feeding wiring pattern formed thereon, the feeding wiring pattern feeds power to the terminals at the time of an electrolytic plating process, and the feeding wiring pattern is removed after the electrolytic plating process is completed.

Abstract: A card type wireless communication module, includes a board; a plurality of terminals formed on the board, the terminals including an external antenna terminal, the terminals having a plating process applied thereto; and a ground pattern formed on the board; wherein a feeding wiring pattern arrangement area is formed between forming positions of the terminals on the board and a forming position of the ground pattern, the feeding wiring pattern arrangement area has a feeding wiring pattern formed thereon, the feeding wiring pattern feeds power to the terminals at the time of an electrolytic plating process, and the feeding wiring pattern is removed after the electrolytic plating process is completed.

Abstract: A card device for mounting in a mobile wireless communication terminal having an antenna includes a card substrate having a multilayer configuration. The card substrate includes a surface wiring layer on which an antenna terminal is formed for connecting to the antenna, and another wiring layer facing the surface wiring layer and being at ground potential. The other wiring layer includes a conductor notch part formed at a position corresponding to a position of the antenna terminal.

Abstract: A card device for wireless communication which is to be attached to a mobile communication terminal includes a card substrate, a parasitic antenna element for transmission and reception formed on a first surface of the card substrate, and a feed antenna element for transmission and reception formed on a second surface of the card substrate opposite the first surface of the card substrate, wherein the parasitic antenna element and the feed antenna element have substantially the same shape, and are arranged to substantially completely overlap each other across the card substrate.

Abstract: A card device that is loaded in a mobile communication terminal and is used for wireless communication, includes a transmission and reception circuit that generates a transmission signal to be transmitted in a wireless manner based on transmission data, and processes a received signal that has been received in the wireless manner; a first antenna that is used for signal transmission and reception in the wireless manner; an antenna terminal that is connected with a second antenna that is provided in the outside of the card device; and a switch that connects in a switching manner one of the first antenna and the antenna terminal to the transmission and reception circuit.