Low-Spurious Wideband DDS-Based Ku-Band Chirp Generator for Short-Range Radar Application

Direct digital synthesizer (DDS)-based chirp generator is a popular component in high-performance radar systems owing to its high speed and excellent chirp-linearity properties. This letter presents a 12-18 GHz DDS-based chirp generator with high spectral purity by proposing a method for planning th...

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Veröffentlicht in:	IEEE microwave and wireless components letters 2022-03, Vol.32 (3), p.206-209
Hauptverfasser:	Kim, Dong-Woo, Son, YongAm, Kang, Hojung, Nam, Sangwook
Format:	Artikel
Sprache:	eng
Schlagworte:	Chirp Direct digital synthesizer (DDS) frequency planning frequency-modulated continuous wave (FMCW) waveform generation Generators Mixers Phase noise Radar Radar equipment Radio frequency short-range radar Wideband
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Beschreibung
Zusammenfassung:	Direct digital synthesizer (DDS)-based chirp generator is a popular component in high-performance radar systems owing to its high speed and excellent chirp-linearity properties. This letter presents a 12-18 GHz DDS-based chirp generator with high spectral purity by proposing a method for planning the optimal frequencies. To verify the performance, the RF characteristics of the fabricated chirp generator were measured, and range profile measurements were performed to test the fabricated chirp generator.
ISSN:	1531-1309 2771-957X 1558-1764 2771-9588
DOI:	10.1109/LMWC.2022.3149244