Millimeter-wave imaging radar system design based on detailed system radar simulation tool
| Autor: | Marie Mbeutcha, Viktor Krozer, Giacomo Ulisse |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Computer science
Amplifier Bandwidth (signal processing) 0211 other engineering and technologies 020206 networking & telecommunications 02 engineering and technology law.invention Image response Frequency-modulated continuous-wave (FMCW) radar millimeter-wave components millimeter-wave radar 3D EM simulation EM propagation Continuous-wave radar law Radar imaging Extremely high frequency 0202 electrical engineering electronic engineering information engineering Electronic engineering Radar 021101 geological & geomatics engineering Spectral purity |
| Zdroj: | 2018 22nd International Microwave and Radar Conference (MIKON) |
| Popis: | This paper presents a 35 GHz direct-digital-synthesizer (DDS)-based FMCW radar for future fully-integrated front-end MIMO radar systems with complex signal generation. The full integration of radar front-ends is a challenge at millimeter-wave frequencies due to poor signal integrity and spectrum purity, which are essential for imaging applications. The radar features a Hartley architecture for conversion image rejection in up-and down-conversion and an enhanced push-pull power amplifier architecture for harmonic cancellation. A radar simulation environment has been developed emulating realistic device performance. An innovative 3D electromagnetic propagation model is proposed to account for the antenna and wave propagation to the target. With the above architecture we achieve a conversion image rejection of -53.5 dBc with an output power above 34 dBm across 1 GHz bandwidth, using various commercial components. A spectral purity less than -130 dBc is achieved for the 2 nd and 3 rd order harmonic suppression, respectively. The total DC consumption is around 30 W determined by the power amplifier. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|