In one example an apparatus is provided. The apparatus includes a low frequency radiator, a high frequency radiator, a high frequency waveguide that carries high frequency bands to the high frequency radiator, a low frequency coaxial waveguide coupled to the high frequency waveguide in a coaxial structure, wherein the low frequency coaxial waveguide carries low frequency bands to the low frequency radiator and a low frequency combiner in communication with the low frequency coaxial waveguide, wherein the low frequency combiner comprises a circular low frequency waveguide and air dielectric transmission lines formed by air channels formed above and below a plurality of printed circuits in a metal housing.

A board to board contactless interconnect system includes a first circuit board for launching at st one microwave signal into a cavity of a first waveguide secured thereto. A second waveguide, secured to a second circuit board, is coupleable to the first waveguide to receive the at least one microwave signal in a cavity of the second waveguide and conduct the at least one microwave signal onto a microwave receiver aligned with the cavity on the second circuit board. The waveguides may be separable and may include additional waveguides. Conductive gaskets with apertures for microwave signals to pass through are positioned between the waveguides and between each circuit board and a waveguide to prevent leakage of microwave energy therebetween. Some embodiments may pass signals through a sealed boundary and maintain integrity of the seal. Such embodiments may have a third waveguide interposed between the first and second waveguides.

This application discloses a dual-polarized antenna, a radio frequency front-end apparatus, and a communications device. The dual-polarized antenna is a planar antenna, and a maximum radiation direction of the dual-polarized antenna is parallel to an antenna plane. A radio frequency circuit may be disposed at a side opposite to the maximum radiation direction of the dual-polarized antenna and located on a same circuit board as the dual-polarized antenna. A low profile feature is implemented, and the radio frequency circuit and the dual-polarized antenna do not need to be connected by using an interconnection plug, thereby reducing an insertion loss and reducing an assembly difficulty.

This application discloses a dual-polarized antenna, a radio frequency front-end apparatus, and a communications device. The dual-polarized antenna is a planar antenna, and a maximum radiation direction of the dual-polarized antenna is parallel to an antenna plane. A radio frequency circuit may be disposed at a side opposite to the maximum radiation direction of the dual-polarized antenna and located on a same circuit board as the dual-polarized antenna. A low profile feature is implemented, and the radio frequency circuit and the dual-polarized antenna do not need to be connected by using an interconnection plug, thereby reducing an insertion loss and reducing an assembly difficulty.

Provided is a planar horn array antenna includes: a waveguide part; a horn part having one side connected to the waveguide part and the other side formed with an opening for guiding a radio wave incident or emitted thereto; and a radio wave guide part having a dividing member coupled with the opening and consisting of circular dividing holes arranged in a matrix of n×n.

Provided is a planar horn array antenna includes: a waveguide part; a horn part having one side connected to the waveguide part and the other side formed with an opening for guiding a radio wave incident or emitted thereto; and a radio wave guide part having a dividing member coupled with the opening and consisting of circular dividing holes arranged in a matrix of n×n.

A horn (12) for elementary antennas for telecommunications, in particular satellite telecommunications, characterized in that the horn (12) includes a first emitting-receiving portion (22) adapted to emit and receiving an electromagnetic wave at a first frequency and a second emitting-receiving portion (24) adapted to emit and receiving an electromagnetic wave at a second frequency, the second emitting-receiving portion (24) being distinct and separate from the first emitting-receiving portion (22) and the ratio between the second frequency and the first frequency being greater than 1.2, preferably greater than 1.5.

A horn (12) for elementary antennas for telecommunications, in particular satellite telecommunications, characterized in that the horn (12) includes a first emitting-receiving portion (22) adapted to emit and receiving an electromagnetic wave at a first frequency and a second emitting-receiving portion (24) adapted to emit and receiving an electromagnetic wave at a second frequency, the second emitting-receiving portion (24) being distinct and separate from the first emitting-receiving portion (22) and the ratio between the second frequency and the first frequency being greater than 1.2, preferably greater than 1.5.

An antenna system for triple-band satellite communication according to one exemplary embodiment of the present disclosure includes a feed horn device that is configured to simultaneously radiate or absorb wireless signals of triple bands including X, Ku and Ka bands, and a waveguide section that is coupled to the feed horn device and configured to transmit input and output of the wireless signals, wherein the feed horn device includes a corrugation horn that is configured to radiate or absorb the wireless signals of the X and Ku bands, the corrugation horn having a bell-like shape with a plurality of corrugations formed on an inner circumferential surface thereof in a stepped manner, and a dielectric feed horn that is configured to radiate or absorb the wireless signal corresponding to the Ku band and disposed in a central region of the corrugation horn.

The compact excitation module comprises two radiofrequency RF exciters and a rotary joint coupled together along a common longitudinal axis, the rotary joint comprising two distinct parts, respectively fixed and rotating around the common longitudinal axis, the two radiofrequency exciters being mounted one on each side of the rotary joint, respectively on the fixed and rotating parts, and axially coupled together by the rotary joint. The compact excitation module further comprises a rotary actuator provided with an axial transverse opening, the rotary joint being housed in the axial transverse opening of the rotary actuator.