A single feed antenna design is conducted on a radiator of a specific shape (for example, a strip radiator or a slot radiator) to excite a plurality of antenna modes. For example, performing a feed design on a strip radiator may excite a CM wire antenna mode and a DM wire antenna mode. For another example, performing a feed design on a slot radiator may feed a CM slot antenna mode and a DM slot antenna mode. The antenna design may be used to cover a plurality of frequency bands when an antenna is miniaturized.

The present invention discloses a broadband microstrip patch antenna (106) with U-shaped slot (116) with unequal arms for millimeter wave communications. The electromagnetic coupled type feed is used with microstrip line (103) printed on another substrate layer to minimize feed loss. The dimension of the patch, position and dimension of slots, height of dielectric layer, length, width of the microstrip line and so on are optimized to achieve the desired impedance and gain pattern over the 60 GHz frequency band.

The present invention discloses a broadband microstrip patch antenna (106) with U-shaped slot (116) with unequal arms for millimeter wave communications. The electromagnetic coupled type feed is used with microstrip line (103) printed on another substrate layer to minimize feed loss. The dimension of the patch, position and dimension of slots, height of dielectric layer, length, width of the microstrip line and so on are optimized to achieve the desired impedance and gain pattern over the 60 GHz frequency band.

Examples are disclosed that relate to changing an antenna pattern via one or more configurable parasitic antennas. One example provides a wireless device comprising a radio, a driven antenna connected to the radio, a ground plane, and one or more parasitic antennas. Each parasitic antenna connects to the ground plane via a switch operable to change an antenna pattern of the driven antenna.

A terminal device includes a metal frame having at least two slots disposed on a side of the metal frame. At least two antenna feedpoints are disposed on an inner side wall of the metal frame, and different antenna feedpoints in the at least two antenna feedpoints are disposed on side edges of different slots. A signal reflection wall is further provided inside the terminal device, and a gap exists between the signal reflection wall and the at least two slots. The signal reflection wall is formed by a metal wall of a battery chamber of the terminal device, and the battery chamber is a structure that accommodates a battery of the terminal device. The metal frame and the signal reflection wall are both electrically connected to a ground plate of the terminal device.

A terminal device includes a metal frame having at least two slots disposed on a side of the metal frame. At least two antenna feedpoints are disposed on an inner side wall of the metal frame, and different antenna feedpoints in the at least two antenna feedpoints are disposed on side edges of different slots. A signal reflection wall is further provided inside the terminal device, and a gap exists between the signal reflection wall and the at least two slots. The signal reflection wall is formed by a metal wall of a battery chamber of the terminal device, and the battery chamber is a structure that accommodates a battery of the terminal device. The metal frame and the signal reflection wall are both electrically connected to a ground plate of the terminal device.

Technologies directed to a slot antenna as a calibration antenna for a phased array antenna are described. The antenna structure includes a ground plane, a first antenna element, and a second antenna element. The first antenna element and the second antenna element are located in a first plane that is separated from the ground plane by a first distance. The second antenna element is separated from the first antenna element by a second distance. Conductive material is located in the first plane the first antenna element and the second antenna element. A portion of the conductive material adjacent to the first antenna element includes a slot antenna. A radio frequency feed point is located at the slot antenna. The conductive material electrically isolates the first antenna element and the second antenna element and radiates electromagnetic energy as a slot antenna.

An electronic device includes a substrate and an antenna apparatus. The substrate includes a grounding area. The antenna apparatus includes a first radiating element, a second radiating element, a third radiating element, a first feeding structure, and a second feeding structure that are disposed in the clearance area adjacent to the grounding area. The first radiating element and the grounding area jointly form a slot antenna. The second radiating element is separated from the grounding area. The first feeding structure and the second feeding structure are located at the clearance area and are grounded. The second feeding structure is electrically coupled between the third radiating element and the ground. The antenna apparatus feeds a radiating element using the first feeding structure and the second feeding structure to obtain resonance modes at different frequencies, thereby implementing a dual-band dual-antenna function.

An electronic device includes a substrate and an antenna apparatus. The substrate includes a grounding area. The antenna apparatus includes a first radiating element, a second radiating element, a third radiating element, a first feeding structure, and a second feeding structure that are disposed in the clearance area adjacent to the grounding area. The first radiating element and the grounding area jointly form a slot antenna. The second radiating element is separated from the grounding area. The first feeding structure and the second feeding structure are located at the clearance area and are grounded. The second feeding structure is electrically coupled between the third radiating element and the ground. The antenna apparatus feeds a radiating element using the first feeding structure and the second feeding structure to obtain resonance modes at different frequencies, thereby implementing a dual-band dual-antenna function.

The antenna device includes a substrate, a first radiator that is in a plane shape, operates as a wideband antenna, and is disposed on the dielectric region such that one end portion faces the ground region and an opposite end portion faces away from the ground region, a width of the opposite end portion being wider than a width of the one end portion, a second radiator that is in a line shape, operates as a narrowband antenna and at a lower frequency than the first radiator, and is disposed adjacent to the first radiator on the dielectric region such that one end portion faces the ground region and an opposite end portion faces away from the ground region, a first feeding line, a second feeding line, and a connecting structure connected with the first radiator, the first feeding line, the second radiator, and the second feeding line.