| 摘要 |
PROBLEM TO BE SOLVED: To provide a radio communication device comprising a slot antenna that can operate at different frequency bands and is small in cubic volume.SOLUTION: A radio communication device according to the present invention comprises a slot antenna, a metal frame, and a circuit board arranged with space from the metal frame. The slot antenna includes a feed-in point, a grounding point, and a radiation point. The feed-in point and the grounding point are arranged between the circuit board and the metal frame so as to electrically connect the circuit board and the metal frame. The radiation unit forms part of the metal frame, and a slot is formed between the radiation unit and the circuit board. On the circuit board, provided are one multiband-pass filter, a plurality of matching circuits, and a plurality of radio frequency chips. The slot antenna, multiband-pass filter, matching circuits, and radio frequency chips are electrically connected in sequence.SELECTED DRAWING: Figure 1 |
