A wireless transmission expansion device includes: an expansion unit having a bottom base portion, the bottom base portion having therein a receiving space, wherein each of two sides of the bottom base portion extends to form a positioning clamping arm, and the two positioning clamping arms define therebetween a clamping space; a wireless transmission device disposed in the receiving space; and at least one antenna module disposed at the positioning clamping arms and being in signal connection with the wireless transmission device. Therefore, the wireless transmission expansion device operates in conjunction with an existing video apparatus or portable camera not capable of 4G transmission or not having internal storage space required for 4G transmission, so as to instantly transmit a large amount of video information.

A method for controlling the lengths of length adjustable elements of an antenna includes engaging a motor drive assembly coupled to each length adjustable element and in response to signals from a motor controller for adjusting the length of the length-adjustable antenna elements to element lengths provided by element length tables coupled to the motor controller, running antenna modeling software coupled to the motor controller to generate antenna performance data as a function of antenna element lengths, and driving the motor controller for each motor drive assembly from data in the element length tables to adjust the lengths of the length-adjustable elements in response to commands entered into a user interface or commands generated by the antenna modeling software running in the processor.

An AMC antenna apparatus includes a ground plane and a flexible antenna element layer above the ground plane. The ground plane includes a conductive base surface, a plurality of flexible conductors, and a frequency selective surface (FSS) layer above the base surface, where the FSS layer includes a plurality of conductive patches separated from one another. Each of the flexible conductors electrically connects one of the conductive patches to the base surface. A latch mechanism is arranged between the base layer and the FSS layer. An inflatable bladder system between the base layer and the FSS layer is configured to receive a gas input during deployment of the antenna apparatus and inflate to produce force sufficient to cause the latch mechanism to transition from an unlatched state to a latched state in which the conductive base surface is fixedly separated from the FSS layer at a predetermined distance.

A wireless transmission expansion device includes: an expansion unit having a bottom base portion, the bottom base portion having therein a receiving space, wherein each of two sides of the bottom base portion extends to form a positioning clamping arm, and the two positioning clamping arms define therebetween a clamping space; a wireless transmission device disposed in the receiving space; and at least one antenna module disposed at the positioning clamping arms and being in signal connection with the wireless transmission device. Therefore, the wireless transmission expansion device operates in conjunction with an existing video apparatus or portable camera not capable of 4G transmission or not having internal storage space required for 4G transmission, so as to instantly transmit a large amount of video information.

An extendible mast (1) for deploying equipment comprises a composite member formed from plural fibre reinforced layers (75) laminated together in a matrix material in the form of a shell that is constructed and arranged so as to be configurable between a coiled form and an extended form. When extended the member is resiliently biased in the form of an elongate tube having a slit along its length formed by longitudinal edges of the member. One or more electrical conductors (50) extend along at least part of the longitudinal extent of the member for making connection to the equipment. The conductors are integrated between two or more layers within the laminate.

Aspects of the subject disclosure may include, a communication device having a connection structure that physically connects with a utility structure, where the connection structure has a strut channel. The communication device has a support structure physically connected to the connection structure. The communication device has a group of radio devices secured to the support structure, where the strut channel is configured to enable temporarily locking the support structure to the connection structure via an installation member during an installation process. Other embodiments are disclosed.

An AMC antenna apparatus includes a ground plane and a flexible antenna element layer above the ground plane. The ground plane includes a conductive base surface, a plurality of flexible conductors, and a frequency selective surface (FSS) layer above the base surface, where the FSS layer includes a plurality of conductive patches separated from one another. Each of the flexible conductors electrically connects one of the conductive patches to the base surface. A latch mechanism is arranged between the base layer and the FSS layer. An inflatable bladder system between the base layer and the FSS layer is configured to receive a gas input during deployment of the antenna apparatus and inflate to produce force sufficient to cause the latch mechanism to transition from an unlatched state to a latched state in which the conductive base surface is fixedly separated from the FSS layer at a predetermined distance.

A method for controlling the lengths of length adjustable elements of an antenna includes engaging a motor drive assembly coupled to each length adjustable element and in response to signals from a motor controller for adjusting the length of the length-adjustable antenna elements to element lengths provided by element length tables coupled to the motor controller, running antenna modeling software coupled to the motor controller to generate antenna performance data as a function of antenna element lengths, and driving the motor controller for each motor drive assembly from data in the element length tables to adjust the lengths of the length-adjustable elements in response to commands entered into a user interface or commands generated by the antenna modeling software running in the processor.

Aspects of the subject disclosure may include, a communication device having a connection structure that physically connects with a utility structure, where the connection structure has a strut channel. The communication device has a support structure physically connected to the connection structure. The communication device has a group of radio devices secured to the support structure, where the strut channel is configured to enable temporarily locking the support structure to the connection structure via an installation member during an installation process. Other embodiments are disclosed.

A motor vehicle rear spoiler includes: an elongate external wall having a front edge and an opposite rear edge, and an internal housing; two substantially parallel longitudinal mounting brackets situated inside the internal housing; and a signal receiving device including a receiving plate having two opposite borders and a receiving casing installed on the plate between the opposite borders. The two opposite borders are designed to be secured respectively to the two mounting brackets. The longitudinal mounting brackets each include a slideway for respectively receiving the opposite borders of the receiving plate in a sliding manner.