Abstract:
An antenna device is provided. The antenna includes a feeding end, a grounding end, a loop metal portion and a protruded metal portion. The grounding end is electrically connected to a ground plane. The loop metal portion extends from the feeding end to the grounding end to form a loop antenna structure. The protruded metal portion is electrically connected to the loop metal portion, wherein the distance between the protruded metal portion and the grounding end is shorter than the distance between the protruded metal portion and the feeding end.
Abstract:
A mobile communication device with a human body recognition function includes sensing pad and a sensor. The sensing pad is electrically connected to the sensor. When a target object approaches the mobile communication device, an induction signal is generated between the sensing pad and the target object. The sensor receives the induction signal, and the sensor includes a first sensitivity and a second sensitivity. When no target object approaches the mobile communication device, the sensor is set at the first sensitivity. When the sensor receives the induction signal, the first sensitivity is switched to the second sensitivity. The induction signal is converted into a first signal and the first sensitivity is compared with a default value. If the first signal is greater than the default value, the target object is determined as a human body and a power adjustment unit is adjusted to reduce an output power.