A multilayer front-end for an imaging radar sensor
- 1 January 2005
- proceedings article
- Published by Institute of Electrical and Electronics Engineers (IEEE)
Abstract
In this contribution a compact multilayer front-end for a 24 GHz FM-CW imaging radar sensor is presented. After a brief review of the sensor concept the front-end's design and realization are described. The front- end consists of one transmitter stage followed by a switched transmit array with 25 antenna elements and two non- switched coherent receivers. Key structures of the multilayer printed circuit board (PCB) design are the contacting areas of MMICs, space saving RF feed-throughs and the antenna. Solutions for these structures are presented in detail together with exemplary test results. Successful realization and tests demonstrate that a front-end module for an electronically scanning sensor can be realized in multilayer PCB technology at moderate cost. Index Terms — automotive sensors, FM-CW radar, in- terconnections, radar imaging, radar sensorKeywords
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