An electronic assembly and a method for fabricating the same are disclosed. The assembly includes a component carrier, a wireless communication component and an antenna structure. The component carrier has at least one dielectric layer and a metallic layer. The wireless communication component is attached to the component carrier. The antenna structure is formed from a metallic material and is electrically connected with the wireless communication component. An opening formed in the component carrier extends from an upper surface into the interior of the component carrier. The antenna structure is formed at least partially at a wall of the opening.

A tapered core waveguide which may be configured as a spectral component splitter, a spectral component combiner, and various combinations thereof including a reflective mode of operation. The tapered core waveguide has an aperture and cladding, and is dimensioned such that radiant energy admitted into the core via the aperture and having at least two spectral components would be emitted via the cladding at a location dependent on its frequency and/or its polarization, and that a plurality of spectral components injected to the core via the cladding will be mixed and emitted via the aperture.

A corrugated feed horn for antenna has an oval pattern of corrugations, and a series of intermediate ridges spaced between adjacent corrugation ridges only in the regions of the slots near its major axis. The intermediate ridges provide a feed horn that is capable of producing a relatively uniform oval beam, and has enough corrugations per wavelength to guarantee little diffraction on the edges of the horn, thus resulting in an antenna with very low side lobes.

A method for upgrading a dual-band antenna assembly to a tri-band antenna assembly is provided. The dual-band antenna system includes a main reflector, a strut assembly coupled to the main reflector defining an antenna feed receiving area spaced from the main reflector, and a subreflector carried by the strut assembly and also spaced from the main reflector. The subreflector includes a frequency selective surface (FSS) material that is reflective for both a first frequency band and a second frequency band and transmissive for a third frequency band. First and second antenna feeds are arranged in a coaxial relationship adjacent the main reflector and directed toward the subreflector. The first and second antenna feeds are for first and second frequency bands, respectively. The method includes positioning a third antenna feed at the antenna feed receiving area and directed towards the subreflector and the main reflector. The third antenna feed is for the third frequency band.

Embodiments of the invention include an integrated single-piece antenna feed and a turnstile circular polarizer suitable for use in a satellite communications system. One embodiment of the integrated single-piece antenna includes a circular waveguide input, a turnstile, a coaxial feed horn, subreflector and subreflector support. One embodiment of the turnstile features four branches of wrapped-single-ridged waveguide. Another embodiment is a turnstile circular polarizer.

A tapered core waveguide which may be configured as a spectral component splitter, a spectral component combiner, and various combinations thereof including a reflective mode of operation. The tapered core waveguide has an aperture and cladding, and is dimensioned such that radiant energy admitted into the core via the aperture and having at least two spectral components would be emitted via the cladding at a location dependent on its frequency and/or its polarization, and that a plurality of spectral components injected to the core via the cladding will be mixed and emitted via the aperture.

Embodiments of the invention include an integrated single-piece antenna feed and a turnstile circular polarizer suitable for use in a satellite communications system. One embodiment of the integrated single-piece antenna includes a circular waveguide input, a turnstile, a coaxial feed horn, subreflector and subreflector support. One embodiment of the turnstile features four branches of wrapped-single-ridged waveguide. Another embodiment is a turnstile circular polarizer.

A satellite communications terminal for a ship may include an antenna with three antenna feeds operable at respective different frequencies, and communications circuitry coupled to the three antenna feeds and being configurable for a selected antenna feed. The terminal also includes a positioner to mount the antenna to the ship and point the antenna. A controller may select an antenna feed, configure the communications circuitry, and operate the positioner to point the antenna to a selected satellite all based upon the location of the ship and at least one selection rule. The selection rule may be a communications circuitry configuration rule and/or a service level agreement rule.

An antenna array includes a plurality of flared notch radiators recessed within a missile nose cone and positioned in a circumferential arrangement around and extending radially from the payload's metal skin to contact an annular metal cover that provides a ground plane such that each flared notch radiator is inclined towards the boresight axis. The payload's metal skin provides an image plane for each flared notch radiator to launch RF energy with a radial polarization normal to the image plane forward through the annular RF radome. Each flared notch radiator may be positioned within a 5 sided waveguide to further improve directionality and isolation.

An antenna apparatus includes: a parabolic reflector; a dielectric support pedestal; a sub-reflector connected to an upper part of the dielectric support pedestal; and a waveguide connected to a lower part of the dielectric support pedestal, wherein the parabolic reflector has a curved surface in which a ratio of a focal length to a diameter is greater than a preset value, and at least one corrugation configured to suppress a cross polarization is formed in a region of the dielectric support pedestal.