Abstract: A mobile device includes a feeding radiation element, a first radiation element, a shorting radiation element, a second radiation element, a third radiation element, and a fourth radiation element. The feeding radiation element has a feeding point. The first radiation element is adjacent to the feeding radiation element. The first radiation element is coupled through the shorting radiation element to a ground voltage. The second radiation element is coupled to the shorting radiation element. The third radiation element is coupled to the first radiation element. The third radiation element is adjacent to the feeding radiation element. The fourth radiation element is coupled to the ground voltage. The fourth radiation element is adjacent to the feeding radiation element. An antenna structure is formed by the feeding radiation element, the first radiation element, the shorting radiation element, the second radiation element, the third radiation element, and the fourth radiation element.

Abstract: A mobile device supporting wideband operations includes a first metal mechanism element, a dielectric substrate, a first feeding radiation element, a second feeding radiation element, a ground element, and a second metal mechanism element. The first metal mechanism element includes a main portion and a sidewall portion. The sidewall portion of the first metal mechanism element has a first slot. Both the first feeding radiation element and the second feeding radiation element extend across the first slot of the first metal mechanism element. An antenna structure is formed by the first slot of the first metal mechanism element, the dielectric substrate, the first feeding radiation element, the second feeding radiation element, and the ground element. The second metal mechanism element is disposed opposite to the main portion of the first metal mechanism element. The second metal mechanism element has a second slot.

Abstract: A mobile device includes a feeding radiation element, a first radiation element, a second radiation element, a grounding radiation element, a shorting radiation element, and a third radiation element. The first radiation element is coupled to the feeding radiation element. The second radiation element is coupled to the feeding radiation element. The first radiation element and the second radiation element substantially extend in opposite directions. The first radiation element is further coupled through the grounding radiation element to a ground voltage. The shorting radiation element is coupled between the feeding radiation element and the grounding radiation element. A closed loop structure is formed by the feeding radiation element, the first radiation element, the grounding radiation element, and the shorting radiation element. The third radiation element is coupled to the ground voltage. The third radiation element is adjacent to the feeding radiation element and the second radiation element.

Abstract: A mobile device supporting wideband operations includes a first radiation element, a second radiation element, a third radiation element, a fourth radiation element, a fifth radiation element, a sixth radiation element, and a seventh radiation element. The first radiation element has a feeding point. The second radiation element and the third radiation element are coupled to the first radiation element. The first radiation element is coupled through the fourth radiation element to a ground voltage. The fifth radiation element is coupled to the fourth radiation element. The sixth radiation element is coupled to the ground voltage. The sixth radiation element is adjacent to the first radiation element and the third radiation element. The seventh radiation element is coupled to the sixth radiation element. The seventh radiation element extends away from the third radiation element.

Abstract: A mobile device supporting wideband operations includes a metal mechanism element, a feeding radiation element, a shorting radiation element, a main radiation element, a connection radiation element, and an auxiliary radiation element. The metal mechanism element provides a ground voltage. The feeding radiation element has a feeding point. The feeding radiation element is coupled through the shorting radiation element to the metal mechanism element. The main radiation element is coupled to the feeding radiation element. The connection radiation element is coupled to the main radiation element. The auxiliary radiation element is coupled to the connection radiation element. An antenna structure is formed by the feeding radiation element, the shorting radiation element, the main radiation element, the connection radiation element, and the auxiliary radiation element. The width of the main radiation element is greater than that of the auxiliary radiation element.

Abstract: A mobile device includes a feeding radiation element, a first radiation element, a second radiation element, a grounding radiation element, a shorting radiation element, and a third radiation element. The first radiation element is coupled to the feeding radiation element. The second radiation element is coupled to the feeding radiation element. The first radiation element and the second radiation element substantially extend in opposite directions. The first radiation element is further coupled through the grounding radiation element to a ground voltage. The shorting radiation element is coupled between the feeding radiation element and the grounding radiation element. A closed loop structure is formed by the feeding radiation element, the first radiation element, the grounding radiation element, and the shorting radiation element. The third radiation element is coupled to the ground voltage. The third radiation element is adjacent to the feeding radiation element and the second radiation element.

Abstract: A mobile device for reducing SAR (Specific Absorption Rate) includes a grounding radiation element, a feeding radiation element, a main radiation element, a first side radiation element, a second side radiation element, and a dielectric substrate. The main radiation element is coupled to the feeding radiation element. The first side radiation element is coupled to the feeding radiation element. The main radiation element is coupled through the first side radiation element to a first grounding point on the grounding radiation element. The main radiation element is also coupled through the second side radiation element to a second grounding point on the grounding radiation element. An antenna structure is formed by the grounding radiation element, the feeding radiation element, the main radiation element, the first side radiation element, and the second side radiation element. The main radiation element and the feeding radiation element have a plurality of edge notches.

Abstract: A mobile device supporting wideband operations includes a metal mechanism element, a first radiation element, a second radiation element, a third radiation element, and a dielectric substrate. A slot is formed in the metal mechanism element. The first radiation element has a feeding point. The second radiation element is coupled to a ground voltage. The third radiation element is coupled to the ground voltage. The third radiation element is disposed between the first radiation element and the second radiation element. The dielectric substrate is adjacent to the slot of the metal mechanism element. The first radiation element, the second radiation element, and the third radiation element are disposed on the dielectric substrate. An antenna structure is formed by the slot of the metal mechanism element, the first radiation element, the second radiation element, and the third radiation element.

Abstract: A mobile device supporting wideband operations includes a grounding radiation element, a first radiation element, a second radiation element, a third radiation element, a fourth radiation element, a fifth radiation element, and a sixth radiation element. The first radiation element has a first feeding point. The first radiation element is coupled through the second radiation element to the grounding radiation element. The fourth radiation element has a second feeding point. The fifth radiation element is adjacent to the fourth radiation element. The fifth radiation element is coupled through the sixth radiation element to the grounding radiation element. A first antenna structure is formed by the grounding radiation element, the first radiation element, the second radiation element, and the third radiation element. A second antenna structure is formed by the grounding radiation element, the fourth radiation element, the fifth radiation element, and the sixth radiation element.

Abstract: A mobile device includes a ground element, a first radiation element, a second radiation element, a third radiation element, an extension ground element, a fourth radiation element, and a fifth radiation element. The ground element has a notch region. The first radiation element has a feeding point. The second radiation element is coupled to the first radiation element. The first radiation element is coupled through the third radiation element to the ground element. The extension ground element is coupled to the ground element. The fourth radiation element is coupled to the extension ground element. The fifth radiation element is coupled to the extension ground element. An antenna structure is formed by the ground element, the first radiation element, the second radiation element, the third radiation element, the extension ground element, the fourth radiation element, and the fifth radiation element.

Abstract: A mobile device supporting wideband operations includes a first metal mechanism element, a dielectric substrate, a first feeding radiation element, a second feeding radiation element, a ground element, and a second metal mechanism element. The first metal mechanism element includes a main portion and a sidewall portion. The sidewall portion of the first metal mechanism element has a first slot. Both the first feeding radiation element and the second feeding radiation element extend across the first slot of the first metal mechanism element. An antenna structure is formed by the first slot of the first metal mechanism element, the dielectric substrate, the first feeding radiation element, the second feeding radiation element, and the ground element. The second metal mechanism element is disposed opposite to the main portion of the first metal mechanism element. The second metal mechanism element has a second slot.

Abstract: A mobile device includes a hybrid antenna, a tunable circuit element, an RF (Radio Frequency) module, and a proximity sensor. The tunable circuit element provides an impedance value. The RF module generates RF power. The hybrid antenna is coupled through the tunable circuit element to the RF module. The proximity sensor is respectively coupled to the hybrid antenna, the tunable circuit element, and the RF module, and is configured to detect a specific distance between the hybrid antenna and a conductive element. The tunable circuit element and the RF module are operated according to relative information of the specific distance. If the specific distance is shorter than or equal to a first threshold distance, the RF module will reduce the RF power. If the specific distance is shorter than or equal to a second threshold distance, the tunable circuit element will change the impedance value.

Abstract: A mobile device supporting wideband operations includes a metal mechanism element, a first radiation element, a second radiation element, a third radiation element, and a dielectric substrate. A slot is formed in the metal mechanism element. The first radiation element has a feeding point. The second radiation element is coupled to a ground voltage. The third radiation element is coupled to the ground voltage. The third radiation element is disposed between the first radiation element and the second radiation element. The dielectric substrate is adjacent to the slot of the metal mechanism element. The first radiation element, the second radiation element, and the third radiation element are disposed on the dielectric substrate. An antenna structure is formed by the slot of the metal mechanism element, the first radiation element, the second radiation element, and the third radiation element.

Abstract: A mobile device with high radiation efficiency includes a ground element, a first radiation element, a second radiation element, a third radiation element, a fourth radiation element, and a dielectric substrate. The first radiation element has a feeding point. The second radiation element is coupled to the first radiation element. The first radiation element is coupled through the third radiation element to the ground element. The fourth radiation element is coupled between the first radiation element and the third radiation element. The first radiation element, the second radiation element, the third radiation element, and the fourth radiation element are disposed on the dielectric substrate. An antenna structure is formed by the first radiation element, the second radiation element, the third radiation element, and the fourth radiation element.

Abstract: A mobile device includes a ground element, a first radiation element, a second radiation element, a third radiation element, an extension ground element, a fourth radiation element, and a fifth radiation element. The ground element has a notch region. The first radiation element has a feeding point. The second radiation element is coupled to the first radiation element. The first radiation element is coupled through the third radiation element to the ground element. The extension ground element is coupled to the ground element. The fourth radiation element is coupled to the extension ground element. The fifth radiation element is coupled to the extension ground element. An antenna structure is formed by the ground element, the first radiation element, the second radiation element, the third radiation element, the extension ground element, the fourth radiation element, and the fifth radiation element.

Abstract: A mobile device supporting wideband operations includes a grounding radiation element, a first radiation element, a second radiation element, a third radiation element, a fourth radiation element, a fifth radiation element, and a sixth radiation element. The first radiation element has a first feeding point. The first radiation element is coupled through the second radiation element to the grounding radiation element. The fourth radiation element has a second feeding point. The fifth radiation element is adjacent to the fourth radiation element. The fifth radiation element is coupled through the sixth radiation element to the grounding radiation element. A first antenna structure is formed by the grounding radiation element, the first radiation element, the second radiation element, and the third radiation element. A second antenna structure is formed by the grounding radiation element, the fourth radiation element, the fifth radiation element, and the sixth radiation element.

Abstract: A mobile device supporting wideband operations includes a feeding radiation element, a first radiation element, a second radiation element, a third radiation element, a shorting radiation element, a fourth radiation element, and a fifth radiation element. The first radiation element is coupled to the feeding radiation element. The second radiation element is adjacent to the first radiation element. The second radiation element and the third radiation element are coupled through the shorting radiation element to a ground voltage. The fourth radiation element is coupled to the feeding point. The fourth radiation element is adjacent to the second radiation element. The fifth radiation element is coupled to the feeding point. An antenna structure is formed by the feeding radiation element, the first radiation element, the second radiation element, the third radiation element, the shorting radiation element, the fourth radiation element, and the fifth radiation element.

Abstract: A mobile device with high radiation efficiency includes a ground element, a first radiation element, a second radiation element, a third radiation element, a fourth radiation element, a dielectric substrate, a speaker body, and a cable. The first radiation element and the fourth radiation element are coupled to the ground element. The second radiation element and the third radiation element are coupled to a feeding point. An antenna structure is formed by the first radiation element, the second radiation element, the third radiation element, and the fourth radiation element. The speaker body has a first vertical projection on the dielectric substrate, and the first vertical projection at least partially overlaps the third radiation element. The cable is coupled to the speaker body. The cable has a second vertical projection on the dielectric substrate, and the second vertical projection does not overlap the antenna structure at all.

Abstract: A mobile device with communication and sensing functions includes a first radiation element, a second radiation element, a third radiation element, a fourth radiation element, a capacitor, a first metal element, a second metal element, a third metal element, a nonconductive support element, and a proximity sensor. The first metal element is coupled through the capacitor to a ground voltage. The second metal element is coupled to the first metal element. The third metal element is coupled to the first metal element. The third metal element and the second metal element substantially extend in opposite directions. The proximity sensor is coupled to the capacitor and the first metal element. A hybrid antenna structure is formed by a first radiation element, a second radiation element, a third radiation element, a fourth radiation element, a first metal element, a second metal element, and a third metal element.

Abstract: A mobile device for reducing SAR (Specific Absorption Rate) includes a first radiation element, a second radiation element, a third radiation element, and a dielectric substrate. The first radiation element has a feeding point. The second radiation element is adjacent to the first radiation element. The second radiation element has a first notch region, a second notch region, and a third notch region. The second radiation element is coupled through the third radiation element to a ground voltage. The first radiation element, the second radiation element, and the third radiation element are disposed on the dielectric substrate. An antenna structure is formed the first radiation element, the second radiation element, and the third radiation element.