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Autor(en):
Rasshofer, Ralph H.; Biebl, Erwin M. 
Titel:
Surface-Wave Coupling of Active Antennas for Homodyne Sensor Systems 
Abstract:
In this paper, we present a novel method for significantly enhancing the performance of low-cost millimeter-wave sensor systems based on active integrated antennas. Our method uses the planar active antenna's parasitic surface-wave field as a local oscillator signal for a mixing rectenna. Compared to a self-mixing active 67-GHz antenna, the surface-wave coupled rectenna receiver shows a considerably improved minimum detectable signal (10 dB lower) and the possibility for high-quality homodyne in...    »
 
Stichworte:
active antennas, active integrated antennas, Doppler radar, homodyne detection, homodyne sensor systems, in-phase/quadrature signal detection, local oscillator signal, low-cost millimeter-wave sensor systems, millimetre wave detectors, millimetre wave measurement, minimum detectable signal, mixing rectenna, parasitic surface-wave field, road vehicle radar, surface electromagnetic waves, surface-wave coupling 
Zeitschriftentitel:
IEEE Transactions on Microwave Theory and Techniques 
Jahr:
1998 
Band / Volume:
46 
Monat:
dec 
Heft / Issue:
12 
Seitenangaben Beitrag:
2457--2462 
Print-ISSN:
0018-9480