Antenna device for high-frequency radio apparatus,high-frequency radio apparatus,and wrist watch-type radio apparatus

An antenna device for a high frequency radio apparatus comprising:

• a multilayer circuit board;
• an antenna element placed on the multilayer circuit board;
• and
• a ground pattern which is connected with the antenna element and is formed on almost the entire area of any one internal layer of the multilayer circuit board other than the corresponding area where the antenna element is formed.

An antenna device for a high frequency radio apparatus comprising:

• a multilayer circuit board;
• an antenna element which is placed on the multilayer circuit board;
• a first ground pattern which is placed at a constant distance from the antenna element toward the antenna element on the multilayer circuit board and is connected with the antenna element, and
• a second ground pattern which is electrically connected with the first ground pattern and is formed on almost the entire area of any one internal layer of the multilayer circuit board other than the corresponding area where the antenna element is formed.

A high frequency radio apparatus comprising:

• an antenna part for the high frequency radio apparatus that comprises;
• an antenna element placed on a circuit board whose peripheral shape has curves, the antenna element following the peripheral shape of the circuit board to have a curved shape when viewed from above, and
• a ground pattern connected with the antenna element, and
• a radio communication part that performs radio communication through the antenna part of the high frequency radio apparatus.

A high frequency radio apparatus comprising:

• an antenna part for a high frequency radio apparatus which comprises
• a multilayer circuit board,
• a first ground pattern which is connected with the antenna element, and
• a second ground pattern which is electrically connected with the first ground pattern and is formed on almost the entire area of any one internal layer of the multilayer circuit board other than the corresponding area where the antenna element is formed, and
• a radio communication part which performs radio communication via the antenna part for the high frequency radio apparatus.

A wrist watch-type high frequency radio apparatus comprising:

• an antenna part for the high frequency radio apparatus that comprises;
• an antenna element placed on a circuit board whose peripheral shape has curves, the antenna element following the peripheral shape of the circuit board to have a curved shape when viewed from above, and
• a ground pattern connected with the antenna element,
• a radio communication part that performs radio communication through the antenna part for the high frequency radio apparatus, and
• a wrist watch-type case in which the antenna part for the high frequency radio apparatus and the radio communication part are stored.

A wrist watch-type high frequency radio apparatus comprising:

• an antenna part for a high frequency radio apparatus comprising;
• a multilayer circuit board,
• an antenna element which is placed on the multilayer circuit board, and
• a ground pattern which is connected with the antenna element and is formed on almost the entire area of any one internal layer of the multilayer circuit board other than the corresponding area where the antenna element is formed;
• a radio communication part that performs radio communication through the antenna part for the high frequency radio apparatus, and
• a wrist watch-type case in which the antenna part for the high frequency radio apparatus and the radio communication part are stored.

A wrist watch-type high frequency radio apparatus comprising:

• an antenna part for the high frequency radio apparatus that comprises;
• a multilayer circuit board,
• an antenna element which is placed on the multilayer circuit board,
• a first ground pattern which is connected with the antenna element and is placed on the multilayer circuit board at a constant distance from the antenna element toward the board, and
• a second ground pattern which is electrically connected with the first ground pattern and is formed on almost the entire area of any one internal layer of the multilayer circuit board other than the corresponding area where the antenna element is formed;
• a radio communication part that performs radio communication through the antenna part for the high frequency radio apparatus, and
• a wrist watch-type case in which the antenna part for high frequency radio apparatus and the radio communication part are stored.