A device includes a radiating system comprising: at least one of a radiation booster or a radiating element; a ground plane layer having at least two connecting points; a radiofrequency system electrically connected to the radiation booster and/or the radiating element and comprising at least one matching network; at least one external port electrically connected to the radiofrequency system; and at least first and second electrically conductive elements each comprising one or more components and being adapted to electrically connect first and second connecting points, respectively, of the at least two connecting points to an electrically conductive body of an apparatus at a distance from the ground plane layer, the distance being less than λ/15, wherein λ is a free-space wavelength at a lowest frequency of operation of the radiating system.

This application discloses a type of reflecting plate and base station array for base station antennas. The main part of the reflecting plate is mono- or multi-layer reflector chamber, the inside of each layer placed with at least one phase shift cavity, guide groove and projection, the phase shift cavity for holding components of the phase shifter, while guide groove and projection for fixing them, allowing removable dielectric insulation medium of the phase shifter to move within the guide groove. The reflecting plate and the phase shift cavity are designed in integrative structure, achieving good consistency, less soldering and easy installation, costing less time and fewer raw materials, and high efficiency and low cost as well.

In one embodiment, an antenna assembly includes a reflector antenna whose aperture is covered by a radome. The radome has a principle plane corresponding to the azimuth axis of the antenna. The radome has a bulk material and a pair of absorbers made of a radio-frequency (RF)-absorbent material different from the bulk material. The pair of absorbers are arranged symmetrically along the principle plane and about the center of the radome. The pair of absorbers are located near the perimeter of the radome and are at least partially embedded in the bulk material. The pair of absorbers cover from 4%-8% of the total aperture area of the antenna.

A radiating element is provided, for example for array antenna, having stacked resonant cavities of Pérot-Fabry type, of compact structure, a lower cavity being fed by excitation means, the radiating element being characterized in that corrugations are formed substantially below a first earth plane delimiting in its lower part the upper resonant cavity. A radiating element structure of improved compactness is also proposed, whose upper cavity is surmounted by a polarizing radome.

A coil-type loop antenna for a mobile device is installed in a mobile device, and includes an antenna coil which is arranged in the form of a coil wound around the outside surface of a housing of a permanent magnet structure having a permanent magnet on the inside thereof.

A dielectric substrate for transmitting a signal with a frequency F.sub.0 includes a dielectric and a copper film pattern arranged on a first surface of the dielectric. The copper film pattern has a first dimension L in a direction parallel to a propagation direction of an electromagnetic wave that has the frequency F.sub.0 and that propagates on the first surface, and the first dimension L is given by:

[00001]$L=\frac{1}{\sqrt{{\mathrm{.Math.}}_r}-1}.Math.k.Math..Math.{\lambda }_0$

where ε.sub.r represents a relative permittivity of the dielectric, k represents a constant in a range of 0.15 to 0.70, and λ.sub.0 represents a free space wavelength of the signal.

An apparatus for reducing electromagnetic scattering includes a first component having a plurality of curved segments, each including a first reflective material, and together forming an enclosed cavity; and a second component having a plurality of flat or cylindrically-curved segments, each comprising a second reflective material. The second component is positioned external to the cavity.

Examples of slot antennas are described herein. In an example, the slot antenna includes a substrate and an antenna element disposed on the substrate to transmit and receive signals. The substrate is porous.

A wearable device comprises wireless communication means and a patch antenna that is coupled to said wireless communication means to receive and/or transmit electromagnetic radiation. Said patch antenna comprises a planar patch conductor and a planar ground conductor that are separated by a dielectric in between said patch conductor and said ground conductor while at least partially overlapping with one another. The device comprises a core inside a shell and comprises at least part of said communication means within said core. Said shell comprises a first shell part and a second shell part opposite said first shell part, wherein said first shell part and said second shell part are at least partially separated by said dielectric. Said first shell part comprises said patch conductor and said second shell part comprises said ground conductor. Said first shell part and said second shell part together form said patch antenna. The wearable device particularly is a piece of jewellery.

A pedestal is provided for mounting a portable antenna onto a platform. The pedestal includes a ring, a base, a horn and a prong composed of three-dimensionally printable composite resin. The ring attaches to the platform. The base inserts into the ring and includes an outer tube having a pair of axially distributed outer holes. The horn includes an inner tube for insertion into the outer tube and an inverted pyramid that connects to the inner tube. The inner tube includes at least three axially distributed inner holes. The prong has two probes that insert into the outer holes and two of the inner holes to secure the horn to the base.