Abstract: The invention concerns a space craft, such as a telecommunication geostationary satellite, comprising a body, at lease one main telecommunication antenna having a specific orientation relative to the body, at least an omnidirectional antenna having a field of view opposite to that of the main antennae and at least a radiator extensible by tilting about an axis linked to the craft body between a slowing position wherein it is pressed against the body and an extended position. Said axis is positioned substantially in the plane of one surface of the body parallel to the orientation of the omnidirectional antenna and to the surfaces or the surface bearing the main antenna. The radiator tilts at an angle close to 180 o from a position wherein it is pressed against one surface bearing a solar panel to a position wherein it extends substantially in the plane of the surface which bears it when it is slowed.

Abstract: The invention relates to an improved, low-height dual or multi-band antenna comprising surface transmitters, whose size varies in accordance with the frequency band to be transmitted. Said antenna is configured from a smaller surface transmitter that is located on top of a larger surface transmitter. The antenna is characterized by the following improved features: the dual or multi-band antenna is essentially configured as a one-piece punched and bent metal part; as a one-piece component, said antenna consists of at least two surface transmitters, which are electrically connected via a short-circuit; and at least the lowest surface transmitter for transmission in a lower frequency band and/or at least a surface transmitter that is lower than the surface transmitter for transmission in the highest frequency band have transmitter wings lying adjacent to their transmitter surface.

Abstract: An improved antenna array comprises at least four antennas. One antenna receives satellite signals, especially digital satellite signals. One antenna receives terrestrial signals, particularly terrestrially transmitted radio programs. One antenna is provided for the mobile radio sector. One antenna determines the geoposition. The at least four antennas are disposed in a given order such that antenna, antenna, antenna, and antenna are located one behind another from one end of the chassis.

Abstract: An improved antenna arrangement, in particular for motor vehicles having at least two antenna devices, has at least one first antenna element for the mobile radio range and at least one second antenna element. The second antenna element is intended for a different service than the mobile radio range. The lateral distance between the at least one antenna element which is provided for the first antenna arrangement and the antenna element for the second antenna arrangement has at least sections which are <?/8, where ? represents the wavelength of the mobile radio antenna.

Abstract: A receiving and/or transmitting device for motor vehicles has an antenna foot, with a housing. An electrical connection for an antenna element, which is preferably in turn electrically connected to a further antenna element via a lock-out coil, is made via an internal connecting line. The connecting line is preferably in the form of a bracket, and/or the first antenna is provided with an electrically conductive extension.

Abstract: An improved diversity antenna system for moving vehicles is distinguished, inter alia, by the following features: the diversity antenna system can be retrofitted, the first antenna connection (17?) is formed by the first heating connection (17), the first heating line (17a) and/or the first busbar (3) of the heating panel (1), the second antenna connection (23?) is formed by the second heating connection (23), the second heating connecting line (23a) and/or the second busbar (3?) of the heating panel (1), the device for producing different terminating impedances or reactances of different magnitude comprises a tuning box (31), and the tuning box (31) has one or more circuits, via which the magnitude of the terminating impedances or reactances which are formed in the tuning box can be varied continuously or in analog form or a switching box (31?) is provided, having at least three integrated different terminating impedances or reactances.

Abstract: An improved diversity antenna system for moving vehicles is distinguished, inter alia, by the following features:

Abstract: A receiving and/or transmitting device for motor vehicles has an antenna foot (3), preferably in the form of a housing (5). An electrical connection for an antenna element (17), which is preferably in turn electrically connected to a further antenna element (19) via a lock-out coil (19), is made via an internal connecting line (13). An improved receiving and/or transmitting device is distinguished in that the connecting line (13) is preferably in the form of a bracket (13′), and/or the first antenna element (17) is provided with an electrically conductive extension (25, 25′, 25″).