Diversity-antenna system for moving vehicles

H - Electricity – 01 – Q

Patent

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Details

H01Q 1/32 (2006.01) H01Q 1/12 (2006.01) H01Q 23/00 (2006.01)

Patent

CA 2444249

An improved diversity antenna system for moving vehicles is characterised by the following features amongst others: the diversity antenna system may be retro-fitted, the first antenna connector (17') is formed by the first heating connector (17), the first heating line (17a) and/or the first collector track (3) of the heating field (1), the second antenna connector (23') is formed by the second heating connector (23), the second heating connector line (23a) and/or the second collector track (3') of the heating field (1), the device for generation of various termination impedances or various large reactances comprises a tuning box (31) and the tuning box (31) comprises one or several switching circuits, whereby the values for the termination impedances or reactances formed in the tuning box may be adjusted continuously or analogously, or a switching box (31') in which at least three integrated different termination impedances or reactances is provided.

L'invention concerne un système d'antenne de réception en diversité pour véhicules mobiles. Ce système d'antenne de réception en diversité se caractérise en ce qu'il peut être rééquipé ; la première prise d'antenne (17') est formée par la première borne du filament chauffant (17), la première ligne de chauffage (17a) et/ou la première barre collectrice (3) du champ de chauffage (1) ; la deuxième prise d'antenne (23') est formée par la deuxième borne du filament chauffant (23), la deuxième ligne de raccordement du filament chauffant (23a) et/ou la deuxième barre collectrice (3') du champ de chauffage (1) ; le dispositif de production d'impédances terminales ou de réactances différentes comprend un boîtier d'accord (31) et ce boîtier d'accord (31) comprend un ou plusieurs circuits de commutation, par lesquels les valeurs des impédances ou réactances formées dans le boîtier d'accord peuvent être réglées de façon continue ou analogique, ou un boîtier de commutation (31') présente au moins trois impédances terminales ou réactances différentes intégrées.

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