An electronic device includes a housing including a first plate, a second plate opposite to the first plate, and a side member surrounding a space between the first plate and the second plate, and including at least part of a conductive material, a flexible printed circuit board (FPCB) attached on an inner surface of the housing, a first antenna element which is included in the FPCB and in which a slot is formed, and a first radio frequency integrated circuit (RFIC) for the first antenna element. An opening is formed in the side member or the second plate of the housing. The FPCB is attached the inner surface of the housing such that at least part in which the slot of the first antenna element is formed is exposed through the opening. At least part of the opening is filled with an insulating material.

A method and apparatus for using Euclidean modulation in an antenna are disclosed. In one embodiment, a method for controlling an antenna comprises mapping a desired modulation to achievable modulation states, mapping modulation values associated with the achievable modulation states to one or more control parameters, and controlling radio frequency (RF) radiating antenna elements using the one or more control parameters to perform beam forming.

A convertible notebook computer includes a metal mechanism element, a first radiation element, a second radiation element, a third radiation element, a first parasitic element, a second parasitic element, a third parasitic element, and a dielectric substrate. The metal mechanism element has a closed slot. The first radiation element has a feeding point. The second radiation element is coupled to the first radiation element. The third radiation element is coupled to the first radiation element. The first parasitic element is adjacent to the second radiation element. The second parasitic element is adjacent to the third radiation element. The third parasitic element is adjacent to the first radiation element. An antenna structure is formed by the closed slot of the metal mechanism element, the first radiation element, the second radiation element, the third radiation element, the first parasitic element, the second parasitic element, and the third parasitic element.

A convertible notebook computer includes a metal mechanism element, a first radiation element, a second radiation element, a third radiation element, a first parasitic element, a second parasitic element, a third parasitic element, and a dielectric substrate. The metal mechanism element has a closed slot. The first radiation element has a feeding point. The second radiation element is coupled to the first radiation element. The third radiation element is coupled to the first radiation element. The first parasitic element is adjacent to the second radiation element. The second parasitic element is adjacent to the third radiation element. The third parasitic element is adjacent to the first radiation element. An antenna structure is formed by the closed slot of the metal mechanism element, the first radiation element, the second radiation element, the third radiation element, the first parasitic element, the second parasitic element, and the third parasitic element.

An ultra-wideband antenna for a wireless headphone is provided, which includes a first portion and a second portion. One side of the first portion has at least two slots. The second portion is laterally adjacent to and separated from the first portion. The second portion includes a main body portion and an extension portion, and one side of the main body portion is close to the at least two slots, and another side of the main body portion is connected to the extension portion, in which an included angle between the main body portion and the extension portion is in a range of between 85 degrees and 135 degrees. A wireless headphone including the above-mentioned ultra-wideband antenna is also provided.

An ultra-wideband antenna for a wireless headphone is provided, which includes a first portion and a second portion. One side of the first portion has at least two slots. The second portion is laterally adjacent to and separated from the first portion. The second portion includes a main body portion and an extension portion, and one side of the main body portion is close to the at least two slots, and another side of the main body portion is connected to the extension portion, in which an included angle between the main body portion and the extension portion is in a range of between 85 degrees and 135 degrees. A wireless headphone including the above-mentioned ultra-wideband antenna is also provided.

The embodiments herein provide a miniaturized dual-band radiating system providing a directional radiation pattern for Vehicular to Network (V2N) applications. The planar Simple Slotted Square (SSS) radiating system is designed with dimensions 0.114λ.sub.0 × 0.114λ.sub.0 × 0.0016λ.sub.0, where the λ.sub.0 denotes the wavelength of the minimum frequency FR1. The designed radiating system is incorporated with a SSS radiator over a dielectric substrate and Full Ground Plane (FGP) to achieve a directional radiation pattern. The proposed SSS radiating system design operates at the 5G NR n2 band (FR1-1.9 GHz) and safety band (FR2-5.9 GHz) of DSRC in ITS. The proposed single element radiating system is positioned side-by-side to realize the MIMO system. For the MIMO radiating system, the array parameters such as isolation, diversity gain, and ECC are measured and are well within the required values. This embodiment is suitable for placement inside the automobile’s shark fin housing to establish uninterrupted communications.

Aspects of the disclosure relate to a playback device for media playback that incorporates a multi-band antenna. The multi-band antenna may include a substrate and a primary radiator disposed on the substrate and connected to a transmission line for driving the primary radiator. The multi-band antenna may also include a secondary radiator disposed on the substrate and unconnected to the primary radiator.

A wireless communication system includes a wireless sensor provided inside a metal housing; a receiver provided outside the metal housing to receive radio waves from the wireless sensor; and a passive repeater provided between the inside and the outside of the metal housing. The passive repeater includes a receiving antenna provided inside the metal housing and a transmitting antenna provided outside the metal housing. The receiving antenna of the passive repeater and the transmitting antenna of the passive repeater are electrically connected through a hole formed in the metal housing.

An optically transparent coplanar microwave slot antenna is provided including a conductive mesh and a feedline connectively coupled to the conductive mesh wherein the conductive mesh includes a plurality of Christmas tree shaped slots arranged in a dipole configuration wherein each of the plurality of Christmas tree shaped slots is formed from a triangular slot, a trapezoidal slot and a rectangular slot.