Abstract: The present disclosure provides an electronic device. The electronic device comprises a metal case, a slot antenna, a first dielectric material and a second dielectric material. The slot antenna is provided in the metal case and generates a signal. A dielectric constant of the second dielectric material is greater than a dielectric constant of the first dielectric material. The slot antenna comprises an electrical conductive member. The electrical conductive member is configured to define a slot which is closed at two ends thereof, the first dielectric material and the second dielectric material is provided in the slot, wherein the slot has a length, the length and the first dielectric material together determine that a high frequency band of the signal conforms to a high frequency band of a WIFI protocol, and the length and the first dielectric material together determine that a low frequency band of the signal is greater than a low frequency band of the WIFI protocol.

Abstract: The present disclosure discloses a WIFI antenna device, the WIFI antenna device includes a carrier, a grounding portion, a first radiation portion, a second radiation portion and a third radiation portion which all are provided on the carrier. The first radiation portion, the second radiation portion and the third radiation portion are coupled to the grounding portion. The coupling portion couples an electrical signal to the first radiation portion, the second radiation portion and the third radiation portion. The first radiation portion, the second radiation portion and the third radiation portion convert the electrical signal into the radiation signal. The first radiation portion determines a low frequency resonance point of a radiation signal emitted by the WIFI antenna device. The second radiation portion determines a first high frequency resonance point of the radiation signal. The third radiation portion determines a second high frequency resonance point of the radiation signal.

Abstract: The present disclosure discloses a WIFI antenna device, the WIFI antenna device includes a carrier, a grounding portion, a first radiation portion, a second radiation portion and a third radiation portion which all are provided on the carrier. The first radiation portion, the second radiation portion and the third radiation portion are coupled to the grounding portion. The coupling portion couples an electrical signal to the first radiation portion, the second radiation portion and the third radiation portion. The first radiation portion, the second radiation portion and the third radiation portion convert the electrical signal into the radiation signal. The first radiation portion determines a low frequency resonance point of a radiation signal emitted by the WIFI antenna device. The second radiation portion determines a first high frequency resonance point of the radiation signal. The third radiation portion determines a second high frequency resonance point of the radiation signal.