Fast and accurate ramp generation with a PLL-stabilized 24-GHz SiGe VCO for FMCW and FSCW applications
Stelzer A, Ettinger K, Höftberger J, Fenk J, Weigel R (2003)
Publication Type: Conference contribution
Publication year: 2003
Publisher: IEEE
Book Volume: 2
Pages Range: 893-896
Conference Proceedings Title: IEEE MTT-S International Microwave Symposium Digest
Event location: Philadelphia, USA
Abstract
In Microwave sensor systems the application of linear frequency modulation schemes as well as frequency stepping is commonly used. In this paper we describe the generation of fast and highly accurate frequency ramps by means of a fractional-N-PLL stabilized integrated 24-GHz voltage controlled SiGe oscillator, which are a prerequisite for high achievable measurement accuracies. Linearity measurements with phase evaluation on fabricated devices have shown an RF-phase deviation of less than 1.5 rad for a linear frequency sweep with a bandwidth of 250 MHz at 24.5 GHz and a sweep duration of 250 μs.
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APA:
Stelzer, A., Ettinger, K., Höftberger, J., Fenk, J., & Weigel, R. (2003). Fast and accurate ramp generation with a PLL-stabilized 24-GHz SiGe VCO for FMCW and FSCW applications. In IEEE MTT-S International Microwave Symposium Digest (pp. 893-896). Philadelphia, USA: IEEE.
MLA:
Stelzer, Andreas, et al. "Fast and accurate ramp generation with a PLL-stabilized 24-GHz SiGe VCO for FMCW and FSCW applications." Proceedings of the IEEE MTT-S International Microwave Symposium Digest, Philadelphia, USA IEEE, 2003. 893-896.
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