A monopole antenna assembly includes a cable having a cable inner conductor and a cable outer conductor. The monopole antenna assembly includes an antenna base including a ground plane. The ground plane is electrically connected to the cable outer conductor using a compression connection. The monopole antenna assembly includes a monopole radiator having a radiating element and a cable connection element extending from the radiating element. The crimp element is coupled to the cable inner conductor at a compression connection.

A twin beam base station antenna includes a first array that has a plurality of columns of first frequency band radiating elements, the first array configured to form a first antenna beam that provides coverage throughout a first sub-sector of a three-sector base station. The radiating elements in a first of the columns in the first array have a first azimuth boresight pointing direction and the radiating elements in a second of the columns in the first array have a second azimuth boresight pointing direction that is offset from the first azimuth boresight pointing direction by at least 10°. The radiating elements in the second of the columns in the first array are electrically steered.

A twin beam base station antenna includes a first array that has a plurality of columns of first frequency band radiating elements, the first array configured to form a first antenna beam that provides coverage throughout a first sub-sector of a three-sector base station. The radiating elements in a first of the columns in the first array have a first azimuth boresight pointing direction and the radiating elements in a second of the columns in the first array have a second azimuth boresight pointing direction that is offset from the first azimuth boresight pointing direction by at least 10°. The radiating elements in the second of the columns in the first array are electrically steered.

An antenna, an antenna assembly and a wireless communication device are provided. The antenna includes an antenna substrate; and at least one radiation unit disposed on the antenna substrate, each of the at least one radiation unit including: a first radiation branch, and a second radiation branch, where one of the first radiation branch or the second radiation branch is connected to a feeding point, the other of the first radiation branch or the second radiation branch is connected to a ground point, an end part of the first radiation branch bends toward the second radiation branch, and an end part of the second radiation branch is extend in a direction away from the first radiation branch.

An antenna, an antenna assembly and a wireless communication device are provided. The antenna includes an antenna substrate; and at least one radiation unit disposed on the antenna substrate, each of the at least one radiation unit including: a first radiation branch, and a second radiation branch, where one of the first radiation branch or the second radiation branch is connected to a feeding point, the other of the first radiation branch or the second radiation branch is connected to a ground point, an end part of the first radiation branch bends toward the second radiation branch, and an end part of the second radiation branch is extend in a direction away from the first radiation branch.

An antenna assembly includes a backplane and a polymer substrate mounted over the backplane to define an air gap there-between. The polymer substrate supports radiating elements comprising a polymer-based waveguide feed stalk and a polymer-based pair of radiating arms supported by and electrically coupled to the waveguide feed stalk. A conductive layer is formed on the polymer substrate such that the conductive layer faces the backplane. A phase shifter including a movable element such as a dielectric member r trombone member may be positioned in the air gap for adjusting the phase of a radiating element or a phase shifter assembly may be positioned to the back side of the back plane.

An antenna assembly includes a backplane and a polymer substrate mounted over the backplane to define an air gap there-between. The polymer substrate supports radiating elements comprising a polymer-based waveguide feed stalk and a polymer-based pair of radiating arms supported by and electrically coupled to the waveguide feed stalk. A conductive layer is formed on the polymer substrate such that the conductive layer faces the backplane. A phase shifter including a movable element such as a dielectric member r trombone member may be positioned in the air gap for adjusting the phase of a radiating element or a phase shifter assembly may be positioned to the back side of the back plane.

Provided is a photonic crystal element, which shows small delay of an electric signal, shows a small propagation loss, and has uniform characteristics over its entirety. The photonic crystal element includes a two-dimensional photonic crystal slab having holes periodically formed in a substrate made of a ceramics material, the photonic crystal element being configured to guide an electromagnetic wave having a frequency of 30 GHz or more and 20 THz or less.

Deployable reflector system includes a support structure and a reflector surface secured to the support structure. The support structure transition from a compact stowed configuration to a larger deployed configuration to deploy the reflector surface. The reflector surface is comprised of a carbon nanotube (CNT) sheet. The sheet is intricately folded in accordance with a predetermined folding pattern to define a compact folded state. This predetermined folding pattern is configured to permit automatic extension of the CNT sheet from a compact folded state to a fully unfolded state. The unfolding operation occurs when a tension force is applied to at least a portion of the peripheral edge of the CNT sheet. In some scenarios, the support structure can comprise a circumferential hoop.

Deployable reflector system includes a support structure and a reflector surface secured to the support structure. The support structure transition from a compact stowed configuration to a larger deployed configuration to deploy the reflector surface. The reflector surface is comprised of a carbon nanotube (CNT) sheet. The sheet is intricately folded in accordance with a predetermined folding pattern to define a compact folded state. This predetermined folding pattern is configured to permit automatic extension of the CNT sheet from a compact folded state to a fully unfolded state. The unfolding operation occurs when a tension force is applied to at least a portion of the peripheral edge of the CNT sheet. In some scenarios, the support structure can comprise a circumferential hoop.