A communications device is provided, including a metal carrier having a mounting plane with at least one mounting area, and further includes an antenna element disposed in each mounting area. The mounting area is where the mounting plane intersects a circle centered at a feedpoint of the antenna element in the area and whose radius does not exceed a specified radius. When a boundary line of the mounting area includes a boundary line, a distance from the feedpoint to the boundary line is less than or equal to a specified distance; and/or when a boundary line of the mounting area includes a vertex of the mounting plane, a distance from the feedpoint to the vertex is less than or equal to a specified distance. A feed position on the antenna element is designed to obtain relatively good antenna roundness performance and enhance an antenna signal coverage effect.

An antenna element according to an embodiment of the present invention includes a radiation body including a contact part which is concave toward the transmission line, a transmission line disposed on a different layer from the radiation body and connected to the radiation body through the contact part, and a signal pad connected to an end of the transmission line.

Apparatus and techniques described herein can include antenna configurations and related fabrication. For example, a Z-axis meandering antenna configuration can be fabricated, such as by forming a dielectric substrate extending in two dimensions and defining an undulating region extending out of a plane defined by the two dimensions; and forming at least one conductive region following a contour of the dielectric substrate including at least a portion of the undulating region. The at least one conductive region can follow the contour of the dielectric substrate, such as including a first conductive region on a first layer, and a second conductive region on another layer separate from the first conductive region of the first conductive layer.

An antenna structure according to an embodiment includes a radiator including a plurality of radiating portions that have sequentially reducing widths, a transmission line electrically connected to the radiator, and a ground pattern around the transmission line to be physically spaced apart from the radiator and the transmission line. A broadband antenna structure capable of providing a multi-band radiation can be implemented.

A radio frequency communication device and its use for a transportation system. The radio frequency communication device includes a supporting member, through which the device is arranged to attach to a cylindrical structure; and a conductive planar portion arranged to removably secure on the supporting member, the conductive planar portion includes a conductive loop being electrically connected in between the conductive planar portion and the supporting member, arranged to generate a radio frequency radiation; wherein the supporting member includes multiple flat portions arranged to fit the radio frequency device onto the cylindrical structure.

In one example in accordance with the present disclosure, an example computing device is disclosed. The example computing device includes a housing. The example computing device also includes a rotatable antenna disposed within the housing. The rotatable antenna is to rotate such that a direction of radiation is maintained in a single direction as the housing is to rotate.

A directional curved antenna, comprising: a feed network; a curved ground plane; at least two radiating elements connected to the feed network above the curved ground plane, wherein the at least two radiating elements are arranged and configured such that the directional curved antenna provides a directional radiation.

An antenna module includes three array antenna sets and three ground layers. The three array antenna sets are individually located on different planes, and each of the array antenna sets includes multiple patch antennas. The three ground layers are individually disposed near the three array antenna sets and are apart from the corresponding three array antenna sets.

The invention relates to an antenna device having an emitter element for emitting and/or receiving electromagnetic signals. The emitter element includes at least one coupling point connected to a side of the emitter element, and implemented for capacitively coupling electromagnetic signals in and/or out.

A substrate that includes at least one dielectric layer, a plurality of interconnects, and a curved antenna coupled to a surface of the substrate. The curved antenna is curved relative to the surface of the substrate such that at least part of the curved antenna is offset from the surface of the substrate. The substrate includes a first antenna dielectric layer coupled to the surface of the substrate, an antenna ground interconnect coupled to the first antenna dielectric layer, and a second antenna dielectric layer coupled to the antenna ground interconnect. The antenna ground interconnect configured to be coupled to ground. The curved antenna is coupled to the second antenna dielectric layer.