| 摘要 |
To avoid complex antenna adaptation to a receiver input circuit and/or transmitter output circuit, as well as a band-width limitation by the antenna, in particular in the case of broad-band FM-CW radar arrangements, the predominant part of an oscillating circuit determining the frequency selection is realised by the antenna, which is connected during transmitting and/or receiving, of microwaves in particular, to a selective and transistorised RF stage.
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