Abstract: Radiocommunication system for aircraft. The radiocommunication system (S1) comprises a single box and, integrated into this single box, at least one single main interface module (7), which is formed in such a way as to carry out the processing of the interfaces of all the radiocommunication means (3 to 6) of said radiocommunication system (S1).

Abstract: A unit includes a glidepath aerial and a support organ designed to be mounted on the front landing gear of an aircraft, with the landing gear forming an electrically conductive ground plane. The aerial is mounted on the support organ and is electrically insulated from this support organ by insulating elements. The support organ has a longitudinal dimension at least equal to around one quarter of the wavelength ? at which the aerial functions, so that the distance separating this aerial and the ground plane is greater than ?/4, and the aerial also has a transmission line designed to connect the aerial to a receiver in the aircraft. The transmission line is surrounded by an electromagnetic shielding element serving as a faradization screen for the transmission line, and designed to be electrically connected to the ground plane.

Abstract: The invention concerns a unit having a glidepath aerial (1) and a support organ (2) designed to be mounted on the front landing gear of an aircraft, with said landing gear forming an electrically conductive ground plane. According to the invention: this aerial (1) is mounted on the support organ (2) and is electrically insulated from this support organ (2) by insulating elements, the support organ (2) has a longitudinal dimension at least equal to around one quarter of the wavelength ? at which the aerial functions, so that the distance separating this aerial (1) and the ground plane is greater than ?/4, and the aerial (1) also has a transmission line (13, 15) designed to connect the aerial (1) to a receiver in the aircraft; this transmission line (13, 15) is surrounding by an electromagnetic shielding element (12) serving as a faradization screen for the transmission line (13, 15), and this element is designed to be electrically connected to the ground plane.

Abstract: Radiocommunication system for aircraft. The radiocommunication system (S1) comprises a single box and, integrated into this single box, at least one single main interface module (7), which is formed in such a way as to carry out the processing of the interfaces of all the radiocommunication means (3 to 6) of said radiocommunication system (S1).

Abstract: This invention relates to an aircraft using such an antenna comprises: a structural element (8) that is conducting in the operating frequency band of the antenna, with size equal to at least one quarter of the wave length along the polarization direction of the electromagnetic wave for the minimum frequency of this frequency band, and comprising a cutout forming a cavity (9); a removable exciting element (10) placed in this cavity that acts as an exciter of this cavity (9); and a metallization that is electrically conducting at the operating frequencies of the antenna providing metallization between the exciting element (10) and the structural element (8).

Abstract: This invention relates to a distress beacon comprising at least one transmitter stage (22) connected to an antenna, and one receiver stage (21) locked onto a distress frequency connected to the said antenna (25), and a detection module connected to the output of this receiver stage (21) capable of activating a signal in order to indicate an alarm.

Abstract: This invention relates to an antenna for transmission/reception of radio frequency waves that comprises: