Antenna apparatus for portable terminal

摘要

An antenna apparatus for a portable terminal which is light, thin, compact, and small. The antenna apparatus preferably includes a main board equipped with a power feeding part for feeding power and a ground surface for grounding the main board and at least one sub-board, each sub-board which has a ground surface and electrically communicates with the main board, wherein the ground surface of each sub-board receives power from the power feeding part of the main board and resonates.

主权项

1. An antenna apparatus for a portable terminal, the apparatus comprising:
a main board including a power feeding part and a main board ground surface, the main board equipped with at least one circuit for control, processing or memory; a metal case frame that encases the antenna apparatus and provides an external appearance of the portable terminal, wherein the metal case frame receives current from the main board or from the at least one sub-board and resonates; at least one sub-board in electrical communication with the main board and including a sub-board ground surface, the at least one sub-board being disposed laterally with respect to the main board and having installed thereon circuitry for at least one of a microphone, a speaker, a receiver, a keypad, and a display; and a connection means for providing an electrical connection between the power feed part of the main board and the sub-board ground surface, wherein the sub-board ground surface of the sub-board is laterally spaced apart from the main board ground surface, the sub-board ground surface of the at least one sub-board receives power distributed from the power feeding part of the main board and resonates to radiate electromagnetic waves, and wherein the ground surface of the main board, the ground surface of the sub-board, and the metal member are electrically connected for arrangement with a slot part of an open-loop shape or a closed-loop shape that is surrounded by metal.