Abstract
The Six-port receiver has been intensively investigated in the last decade to be implemented as an alternative radar architecture. Plenty of current scientific publications demonstrate the effectiveness and versatility of the Six-port radar for special industrial, automotive, and medical applications, ranging from accurate contactless vibration analysis, through automotive radar calibration, to remote breath and heartbeat monitoring. Its highlights, such as excellent phase discrimination, trivial signal processing, low circuit complexity, and cost, have lately drawn the attention of companies working with radar technology. A joint project involving the University of Erlangen-Nuremberg and InnoSenT GmbH (Innovative Sensor Technology) led to the development of a highly accurate, compact, and versatile Six-port radar module aiming at a reliable high-integration of all subcomponents such as antenna, Six-port front-end, baseband circuitry, and digital signal processing in one single package. Innovative aspects in the RF front-end design as well as in the integration strategy are hereby presented, together with a system overview and measurement results.
Highlights
Optical high-resolution, contactless distance measurement techniques such as laser interferometry and laser pulse timedifference measurements have been widely implemented for industrial and medical applications
A joint project involving the University of Erlangen-Nuremberg and InnoSenT GmbH (Innovative Sensor Technology) led to the development of a highly accurate, compact, and versatile Six-port radar module aiming at a reliable high-integration of all subcomponents such as antenna, Six-port front-end, baseband circuitry, and digital signal processing in one single package
A compact, versatile radar module based on the Six-port technique working in the ISM band at 24 GHz has been presented
Summary
Optical high-resolution, contactless distance measurement techniques such as laser interferometry and laser pulse timedifference measurements have been widely implemented for industrial and medical applications. With increasing suspended particle density in the propagation environment dampening and scattering effects increase so that the laser cannot reach the surface of the object under investigation These inconveniences of laser based systems are the cause of an increasing interest in alternative nonoptical measurement techniques that are robust against such industrial environment conditions. As a result of a joint project involving the University of Erlangen-Nuremberg and InnoSenT GmbH (Innovative Sensor Technology), a radar sensor based on the Six-port technique has been developed (Figure 1). In this work, this compact and versatile Six-port radar system is presented along with design and simulation results of its passive components as well as hardware measurements and evaluations. After using a suitable calibration, the position and movement of a target can be calculated [11]
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