Antenna for a receiver and/or transmitter, especially a roof antenna for motor vehicles
AssigneeKathrein-Werke KG
InventorsPeter Karl Prassmayer, Christian Magg
Life of this patent
Estimating the term…
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″).
Claims13
An antenna for a receiving and/or transmitting device for motor vehicles, having the following features:
- having an antenna foot (3),
- having a connecting line (13), which is provided in the antenna foot (3), for electrical connection of an antenna element arrangement (17, 21),
- the antenna element arrangement (17, 21) has at least one first antenna element (17), and
- in addition to the antenna element arrangement (17), the antenna element arrangement (17, 21) preferably has a further antenna element arrangement (21) which is connected to the antenna element arrangement (17) via a lock-out coil (19), with the lock-out coil (19) opening and the first and second antenna element arrangement (17, 19) acting as a common antenna element arrangement at low frequencies, while in contrast the lock-out coil (19) closes at higher frequencies,
- characterized by the following further features
- the connecting line (13) for the antenna element arrangement (17, 21) and/or the antenna element arrangement (17) itself is provided with an electrically conductive extension (25;
- 25′, 25″),
- the extension (25;
- 25′, 25″) is provided in the region of the antenna foot (3) or in the region of a housing which is part of the antenna foot (3), and
- the extension (25;
- 25′, 25″) is in the form of a branch with respect to the electrical line arrangement which comprises the connecting line (13) and the antenna element arrangement (17).
Dependencies are inferred from the claim text.