A Fully Integrated K-band UWB Radar IC for Collision Avoidance of Drone and Small UAV
| Autor: | Yun Seong Eo, Seung Hwan Jung, Sang Gyun Kim, Byeong Jae Seo |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Computer science
020208 electrical & electronic engineering Transmitter Bandwidth (signal processing) 020206 networking & telecommunications 02 engineering and technology Noise figure law.invention Impulse generator Sampling (signal processing) law K band 0202 electrical engineering electronic engineering information engineering Electronic engineering Radar Spectral leakage |
| Zdroj: | 2020 17th European Radar Conference (EuRAD). |
| DOI: | 10.1109/eurad48048.2021.00027 |
| Popis: | A fully integrated K-band UWB radar IC is presented. In order to increase the detection range, a pseudo coherent receiver architecture is adopted using the direct conversion scheme. The UWB transmitter is a carrier-based impulse generator and the proposed active switch for windowing the LO signal reduces the spectral leakage. Two cascaded DLLs provide the clocks and enable the high-resolution sampling of 200 ps. The radar receiver achieves a conversion gain of 79 dB, and a noise figure of 7.4 dB. The carrier frequency and bandwidth of UWB signal can be tunable in the range of 22.9 – 25.5 GHz and 0.18 – 5.2 GHz, respectively. The UWB radar IC is fabricated in a 65 nm CMOS process and consuming 179 mW from a single 1.2-V supply. The loop-back test is also demonstrated to verify and estimate the radar detection range for the given RCS area. |
| Databáze: | OpenAIRE |
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