SiGe BiCMOS FMCW Photonic-Radar Transmitter for Automotive Applications
- Resource Type
- Conference
- Authors
- Hohn, Christoph; Caliskan, Can; Meuer, Christian; Rhee, Hanjo; Keil, Ulrich; Gisder, Thomas; Meinecke, Marc-Michael; Kurz, Heiko Gustav
- Source
- 2023 24th International Radar Symposium (IRS) Radar Symposium (IRS), 2023 24th International. :1-7 May, 2023
- Subject
- Aerospace
Components, Circuits, Devices and Systems
Fields, Waves and Electromagnetics
Geoscience
Photonics and Electrooptics
Robotics and Control Systems
Signal Processing and Analysis
Transportation
Frequency modulation
Stimulated emission
Power amplifiers
Photodetectors
Optical harmonic generation
Optical transmitters
Optical modulation
- Language
- ISSN
- 2155-5753
In this work, a W-Band SiGe BiCMOS Transmitter (Tx) chip design is presented which realizes Electro-Photonic Circuit integration for Frequency-Modulated Continuous Wave (FMCW) automotive applications. An optically modulated electrical input signal (19.125 GHz) is converted back to the electrical domain and quadrupled to have about +11 dBm of peak output power. This is enabled by an integrated photodetector and a transimpedance Amplifier which delivers the required voltage swing to the two frequency doublers with separate LC Tanks. The quadrupled output is introduced to a pseudo-differential power amplifier to succeed the desired power level, while a Marchand-Balun at the output stage is used to enable single-ended 50 Ω output termination. To the best of authors ‘ knowledge, this work achieves a state-of-the-art transmitter output power and the best integration capability simultaneously. The presented results validate the photonic-based FMCW Radar can be a new generation candidate for automotive systems.