The present invention relates to a reflector antenna assembly, and a method of operating an antenna assembly wherein the reflector antenna assembly comprises a reflector having a focal region, wherein an aperture is present in a portion of the reflector; and a waveguide passing through the aperture, wherein the reflector antenna assembly is configured such that the reflector is operable to move relative to the waveguide.

A parabolic antenna includes a main disc, a transmitting device, and a reflecting member. The main disc has a main surface that is arc-shaped. The transmitting device is disposed on the main disc and includes a transmitter and a reflector. The transmitter corresponds to the reflector. The reflector has a reflecting surface that is arc-shaped and corresponds to the main surface of the main disc. The reflecting member is detachably engaged with the reflecting surface of the reflector and corresponds to the transmitter. By engaging the reflecting member with the reflecting surface of the reflector or detaching the reflecting member from the reflecting surface, the parabolic antenna could form various configurations and provide different reflecting performances.

The invention includes various embodiments of integrated dual-band printed antenna feeds having various combinations of electrical and structural components for use with a prime focus, ring focus, or Cassegrain dish antennas. All of the embodiments of dual-band antenna feeds disclosed herein are configured to be fabricated as a single structure using metal additive manufacturing techniques.

Microwave antenna systems include a parabolic reflector antenna having a feed bore and a feed assembly. The feed assembly includes a coaxial waveguide structure that extends through the feed bore, a sub-reflector, and a first dielectric block that is positioned between the coaxial waveguide structure and the sub-reflector. The coaxial waveguide structure includes a central waveguide and an outer waveguide that circumferentially surrounds the central waveguide. One of the central waveguide and the outer waveguide extends further from the feed bore towards the sub-reflector than the other of the central waveguide and the outer waveguide.

A wireless access point device includes a main frame, a transmission assembly, an antenna module and a fixing assembly. The main frame includes a casing and a first connection portion connected to the casing. The transmission assembly is disposed in an internal space of the casing and provided with a signal transceiving element. The antenna module includes a waveguide, a second connection portion and a positioning recess. The second connection portion is disposed on the waveguide and detachably connected to the first connection portion to be coupled to the signal transceiving element. The positioning recess is formed on the second connection portion. The fixing assembly is movably disposed on the first connection portion. The antenna module is thereby fixed on the casing, when the second connection portion and the first connection portion are fixed through the fixing assembly removably inserting into the positioning recess.

A horn feed including: a central conduit extending axially in a first direction from a first portion that is configured to be relatively distal from a sub-reflector and including a first aperture and a second portion that is configured to be relatively proximal to the sub-reflector and including a second aperture; and an interface configured to connect to a dielectric support including an outer cylindrical dielectric wall of a substantially cylindrical shape and an inner cylindrical dielectric wall of a substantially cylindrical shape, wherein the central conduit, the outer cylindrical dielectric wall and the inner cylindrical dielectric wall are co-axial.

A method of forming a feed cone for a microwave antenna includes the steps of: providing a digitized design for a feed cone, the feed cone comprising a plurality of geometric features that vary in area along an axial dimension of the feed cone; subdividing the digitized design into a plurality of thin strata stacked in the thickness dimension; forming a thin layer of material corresponding to one of the thin strata; fixing the thin layer of material; and repeating steps (c) and (d) to form a feed cone.

A microwave antenna includes an antenna housing and a radome fabric attached to the housing, which is configured to pass microwave electromagnetic signals therethrough. The radome fabric has an opening formed therein. A vent component is attached to the radome fabric so as to cover the opening in the radome fabric when the radome fabric is viewed from an elevation view in a direction parallel to an axis extending through and perpendicular to the opening in the radome fabric. The vent component is configured to allow air to pass between the atmosphere and the antenna housing.

Apparatus for dual-band antenna and communications tower comprising such apparatus are provided. The apparatus comprises a first part (202) comprising first and second propagation paths configured to selectively propagate signals of a first frequency with either a first polarization state or a second polarization state, a transition part (204) rotatable between first and second transition positions to selectively propagate signals of a second frequency along the second signal path with the first polarisation state when in the first transition position and with the second polarisation state when in the second transition position and a rotator part rotatable between first and second rotator positions. Wherein, the rotator part is configured to orientate the polarisation of signals in the second signal path in order to couple the second signal path to an interface, and allow propagation of signals in the first signal path in either the first or second rotator positions.

Parabolic reflector antennas advantageously utilize feed boom mounted dielectric lens structures to support enhanced radiation pattern control. A parabolic reflector antenna includes a dish reflector, a feed boom waveguide having a proximal end coupled to the dish reflector, a sub-reflector assembly and a dielectric lens. The sub-reflector assembly may include a dielectric block coupled to a distal end of the feed boom waveguide and a sub-reflector adjacent a distal end of the dielectric block. The dielectric lens may be provided on the feed boom waveguide at a location intermediate the proximal and distal ends of the feed boom waveguide.