[{"language":[{"iso":"eng"}],"_id":"31805","department":[{"_id":"58"}],"user_id":"38254","status":"public","publication":"European Radar Conference (EuRAD)","type":"conference","title":"A Low Phase Noise 77 GHz Frequency Synthesizer for Long Range Radar","doi":"10.23919/EuRAD54643.2022.9924677","conference":{"end_date":"2022.09.30","start_date":"2022.09.28"},"date_updated":"2025-02-25T05:52:35Z","author":[{"first_name":"Stephan","last_name":"Kruse","full_name":"Kruse, Stephan","id":"38254"},{"first_name":"Meysam","last_name":"Bahmanian","full_name":"Bahmanian, Meysam","id":"69233"},{"last_name":"Fard","full_name":"Fard, Saeed","id":"88494","first_name":"Saeed"},{"full_name":"Meinecke, Marc-Michael","last_name":"Meinecke","first_name":"Marc-Michael"},{"last_name":"Kurz","full_name":"Kurz, Heiko G.","first_name":"Heiko G."},{"id":"37144","full_name":"Scheytt, Christoph","orcid":"https://orcid.org/0000-0002-5950-6618","last_name":"Scheytt","first_name":"Christoph"}],"date_created":"2022-06-08T08:35:46Z","year":"2022","place":"Milan, Italy","citation":{"bibtex":"@inproceedings{Kruse_Bahmanian_Fard_Meinecke_Kurz_Scheytt_2022, place={Milan, Italy}, title={A Low Phase Noise 77 GHz Frequency Synthesizer for Long Range Radar}, DOI={<a href=\"https://doi.org/10.23919/EuRAD54643.2022.9924677\">10.23919/EuRAD54643.2022.9924677</a>}, booktitle={European Radar Conference (EuRAD)}, author={Kruse, Stephan and Bahmanian, Meysam and Fard, Saeed and Meinecke, Marc-Michael and Kurz, Heiko G. and Scheytt, Christoph}, year={2022} }","mla":"Kruse, Stephan, et al. “A Low Phase Noise 77 GHz Frequency Synthesizer for Long Range Radar.” <i>European Radar Conference (EuRAD)</i>, 2022, doi:<a href=\"https://doi.org/10.23919/EuRAD54643.2022.9924677\">10.23919/EuRAD54643.2022.9924677</a>.","short":"S. Kruse, M. Bahmanian, S. Fard, M.-M. Meinecke, H.G. Kurz, C. Scheytt, in: European Radar Conference (EuRAD), Milan, Italy, 2022.","apa":"Kruse, S., Bahmanian, M., Fard, S., Meinecke, M.-M., Kurz, H. G., &#38; Scheytt, C. (2022). A Low Phase Noise 77 GHz Frequency Synthesizer for Long Range Radar. <i>European Radar Conference (EuRAD)</i>. <a href=\"https://doi.org/10.23919/EuRAD54643.2022.9924677\">https://doi.org/10.23919/EuRAD54643.2022.9924677</a>","ama":"Kruse S, Bahmanian M, Fard S, Meinecke M-M, Kurz HG, Scheytt C. A Low Phase Noise 77 GHz Frequency Synthesizer for Long Range Radar. In: <i>European Radar Conference (EuRAD)</i>. ; 2022. doi:<a href=\"https://doi.org/10.23919/EuRAD54643.2022.9924677\">10.23919/EuRAD54643.2022.9924677</a>","chicago":"Kruse, Stephan, Meysam Bahmanian, Saeed Fard, Marc-Michael Meinecke, Heiko G. Kurz, and Christoph Scheytt. “A Low Phase Noise 77 GHz Frequency Synthesizer for Long Range Radar.” In <i>European Radar Conference (EuRAD)</i>. Milan, Italy, 2022. <a href=\"https://doi.org/10.23919/EuRAD54643.2022.9924677\">https://doi.org/10.23919/EuRAD54643.2022.9924677</a>.","ieee":"S. Kruse, M. Bahmanian, S. Fard, M.-M. Meinecke, H. G. Kurz, and C. Scheytt, “A Low Phase Noise 77 GHz Frequency Synthesizer for Long Range Radar,” 2022, doi: <a href=\"https://doi.org/10.23919/EuRAD54643.2022.9924677\">10.23919/EuRAD54643.2022.9924677</a>."}},{"language":[{"iso":"eng"}],"department":[{"_id":"58"},{"_id":"230"}],"user_id":"15931","_id":"24023","status":"public","abstract":[{"text":"This paper presents an ultra-wideband and ultra-low noise frequency synthesizer using a mode-locked laser as its reference. The frequency synthesizer can lock in the frequency range from 2 GHz to 20 GHz on any harmonic of a mode-locked laser optical pulse train. The integrated rms-jitter (1 kHz-100 MHz) of the synthesizer is less than 5 fs in the frequency range from 4 GHz to 20 GHz with a typical value of 4 fs and a minimum of 3 fs. This is the first reported wideband phase locked loop achieving sub-10 fs rms-jitter for offset frequencies larger than 1 kHz.","lang":"eng"}],"publication":" 2020 IEEE/MTT-S International Microwave Symposium (IMS)","type":"conference","doi":"10.1109/IMS30576.2020.9224118","conference":{"end_date":"2020.08.06","start_date":"2020.08.04"},"title":"Wide-Band Frequency Synthesizer with Ultra-Low Phase Noise Using an Optical Clock Source","date_created":"2021-09-09T11:50:14Z","author":[{"first_name":"Meysam","last_name":"Bahmanian","id":"69233","full_name":"Bahmanian, Meysam"},{"first_name":"Saeed","id":"88494","full_name":"Fard, Saeed","last_name":"Fard"},{"last_name":"Koppelmann","id":"25260","full_name":"Koppelmann, Bastian","first_name":"Bastian"},{"first_name":"Christoph","full_name":"Scheytt, Christoph","id":"37144","orcid":"https://orcid.org/0000-0002-5950-6618","last_name":"Scheytt"}],"publisher":"IEEE","date_updated":"2023-02-01T08:37:34Z","citation":{"bibtex":"@inproceedings{Bahmanian_Fard_Koppelmann_Scheytt_2020, place={Los Angeles, CA, USA, USA}, title={Wide-Band Frequency Synthesizer with Ultra-Low Phase Noise Using an Optical Clock Source}, DOI={<a href=\"https://doi.org/10.1109/IMS30576.2020.9224118\">10.1109/IMS30576.2020.9224118</a>}, booktitle={ 2020 IEEE/MTT-S International Microwave Symposium (IMS)}, publisher={IEEE}, author={Bahmanian, Meysam and Fard, Saeed and Koppelmann, Bastian and Scheytt, Christoph}, year={2020} }","short":"M. Bahmanian, S. Fard, B. Koppelmann, C. Scheytt, in:  2020 IEEE/MTT-S International Microwave Symposium (IMS), IEEE, Los Angeles, CA, USA, USA, 2020.","mla":"Bahmanian, Meysam, et al. “Wide-Band Frequency Synthesizer with Ultra-Low Phase Noise Using an Optical Clock Source.” <i> 2020 IEEE/MTT-S International Microwave Symposium (IMS)</i>, IEEE, 2020, doi:<a href=\"https://doi.org/10.1109/IMS30576.2020.9224118\">10.1109/IMS30576.2020.9224118</a>.","apa":"Bahmanian, M., Fard, S., Koppelmann, B., &#38; Scheytt, C. (2020). Wide-Band Frequency Synthesizer with Ultra-Low Phase Noise Using an Optical Clock Source. <i> 2020 IEEE/MTT-S International Microwave Symposium (IMS)</i>. <a href=\"https://doi.org/10.1109/IMS30576.2020.9224118\">https://doi.org/10.1109/IMS30576.2020.9224118</a>","ama":"Bahmanian M, Fard S, Koppelmann B, Scheytt C. Wide-Band Frequency Synthesizer with Ultra-Low Phase Noise Using an Optical Clock Source. In: <i> 2020 IEEE/MTT-S International Microwave Symposium (IMS)</i>. IEEE; 2020. doi:<a href=\"https://doi.org/10.1109/IMS30576.2020.9224118\">10.1109/IMS30576.2020.9224118</a>","ieee":"M. Bahmanian, S. Fard, B. Koppelmann, and C. Scheytt, “Wide-Band Frequency Synthesizer with Ultra-Low Phase Noise Using an Optical Clock Source,” 2020, doi: <a href=\"https://doi.org/10.1109/IMS30576.2020.9224118\">10.1109/IMS30576.2020.9224118</a>.","chicago":"Bahmanian, Meysam, Saeed Fard, Bastian Koppelmann, and Christoph Scheytt. “Wide-Band Frequency Synthesizer with Ultra-Low Phase Noise Using an Optical Clock Source.” In <i> 2020 IEEE/MTT-S International Microwave Symposium (IMS)</i>. Los Angeles, CA, USA, USA: IEEE, 2020. <a href=\"https://doi.org/10.1109/IMS30576.2020.9224118\">https://doi.org/10.1109/IMS30576.2020.9224118</a>."},"year":"2020","place":"Los Angeles, CA, USA, USA","related_material":{"link":[{"url":"https://ieeexplore.ieee.org/document/9224118","relation":"confirmation"}]}},{"year":"2019","citation":{"ama":"Abughannam S, Fard S, Scheytt C. Improving Co-Channel Interference Robustness In Direct Detection Receivers Using A Surface Acoustic Wave (SAW) Correlator . In: <i>Asia-Pacific Microwave Conference (APMC)</i>. ; 2019. doi:<a href=\"https://doi.org/10.1109/APMC46564.2019.9038186\">10.1109/APMC46564.2019.9038186</a>","chicago":"Abughannam, Saed, Saeed Fard, and Christoph Scheytt. “Improving Co-Channel Interference Robustness In Direct Detection Receivers Using A Surface Acoustic Wave (SAW) Correlator .” In <i>Asia-Pacific Microwave Conference (APMC)</i>, 2019. <a href=\"https://doi.org/10.1109/APMC46564.2019.9038186\">https://doi.org/10.1109/APMC46564.2019.9038186</a>.","ieee":"S. Abughannam, S. Fard, and C. Scheytt, “Improving Co-Channel Interference Robustness In Direct Detection Receivers Using A Surface Acoustic Wave (SAW) Correlator ,”  Singapore , 2019, doi: <a href=\"https://doi.org/10.1109/APMC46564.2019.9038186\">10.1109/APMC46564.2019.9038186</a>.","apa":"Abughannam, S., Fard, S., &#38; Scheytt, C. (2019). Improving Co-Channel Interference Robustness In Direct Detection Receivers Using A Surface Acoustic Wave (SAW) Correlator . <i>Asia-Pacific Microwave Conference (APMC)</i>. <a href=\"https://doi.org/10.1109/APMC46564.2019.9038186\">https://doi.org/10.1109/APMC46564.2019.9038186</a>","bibtex":"@inproceedings{Abughannam_Fard_Scheytt_2019, title={Improving Co-Channel Interference Robustness In Direct Detection Receivers Using A Surface Acoustic Wave (SAW) Correlator }, DOI={<a href=\"https://doi.org/10.1109/APMC46564.2019.9038186\">10.1109/APMC46564.2019.9038186</a>}, booktitle={Asia-Pacific Microwave Conference (APMC)}, author={Abughannam, Saed and Fard, Saeed and Scheytt, Christoph}, year={2019} }","mla":"Abughannam, Saed, et al. “Improving Co-Channel Interference Robustness In Direct Detection Receivers Using A Surface Acoustic Wave (SAW) Correlator .” <i>Asia-Pacific Microwave Conference (APMC)</i>, 2019, doi:<a href=\"https://doi.org/10.1109/APMC46564.2019.9038186\">10.1109/APMC46564.2019.9038186</a>.","short":"S. Abughannam, S. Fard, C. Scheytt, in: Asia-Pacific Microwave Conference (APMC), 2019."},"related_material":{"link":[{"url":"https://ieeexplore.ieee.org/document/9038186","relation":"confirmation"}]},"title":"Improving Co-Channel Interference Robustness In Direct Detection Receivers Using A Surface Acoustic Wave (SAW) Correlator ","doi":"10.1109/APMC46564.2019.9038186","conference":{"start_date":"2019.12.10","location":" Singapore ","end_date":"2019.12.13"},"date_updated":"2023-01-31T13:32:19Z","author":[{"last_name":"Abughannam","full_name":"Abughannam, Saed","id":"37628","first_name":"Saed"},{"last_name":"Fard","id":"88494","full_name":"Fard, Saeed","first_name":"Saeed"},{"id":"37144","full_name":"Scheytt, Christoph","orcid":"https://orcid.org/0000-0002-5950-6618","last_name":"Scheytt","first_name":"Christoph"}],"date_created":"2021-09-09T12:26:05Z","abstract":[{"text":"Using direct-detection architecture in Radio Frequency (RF) receivers allows for ultra-low power dissipation and is often used in Wake-Up receivers. Unfortunately direct-detection receivers suffer from high sensitivity to co-channel interference which reduces the communication performance and reliability. In this paper, it is shown that co-channel interference robustness of direct-detection receivers is improved by using Binary Phase Shift Keying (BPSK) Barker code modulated Surface Acoustic Wave (SAW) correlator as a prior stage to the RF envelope detector. Replacing the band select filter with SAW correlator does not result in higher receiver hardware cost. In our receiver, the SAW correlator functions as a passive signal processor, providing gain for a BPSK Barker code modulated signal, while suppressing in-band interferers. This improves the co-channel interference robustness of the direct-detection receiver while preserving its advantage of power efficiency. The concept is verified by means of a direct-detection receiver with discrete components on an RF PCB including an SAW Barker Code correlator at a center frequency of 2.44 GHz fabricated on Lithium Niobate substrate. Measurements with WiFi signals demonstrate that the interference robustness is improved by more than 10 dB compared to a conventional direct-detection receiver.","lang":"eng"}],"status":"public","type":"conference","publication":"Asia-Pacific Microwave Conference (APMC)","language":[{"iso":"eng"}],"_id":"24051","user_id":"15931","department":[{"_id":"58"}]}]