{"date_updated":"2022-01-06T06:56:13Z","type":"journal_article","publication":"IEEE Microwave and Wireless Components Letters","language":[{"iso":"eng"}],"user_id":"15931","citation":{"ama":"Wessel J, Schmalz K, Scheytt C, Kissinger D. A 120-GHz Electrical Interferometer for Contactless Permittivity Measurements With Direct Digital Read-Out. <i>IEEE Microwave and Wireless Components Letters</i>. 2017;27(2):198-200. doi:<a href=\"https://doi.org/10.1109/LMWC.2017.2649384\">10.1109/LMWC.2017.2649384</a>","mla":"Wessel, Jan, et al. “A 120-GHz Electrical Interferometer for Contactless Permittivity Measurements With Direct Digital Read-Out.” <i>IEEE Microwave and Wireless Components Letters</i>, vol. 27, no. 2, 2017, pp. 198–200, doi:<a href=\"https://doi.org/10.1109/LMWC.2017.2649384\">10.1109/LMWC.2017.2649384</a>.","ieee":"J. Wessel, K. Schmalz, C. Scheytt, and D. Kissinger, “A 120-GHz Electrical Interferometer for Contactless Permittivity Measurements With Direct Digital Read-Out,” <i>IEEE Microwave and Wireless Components Letters</i>, vol. 27, no. 2, pp. 198–200, 2017, doi: <a href=\"https://doi.org/10.1109/LMWC.2017.2649384\">10.1109/LMWC.2017.2649384</a>.","apa":"Wessel, J., Schmalz, K., Scheytt, C., &#38; Kissinger, D. (2017). A 120-GHz Electrical Interferometer for Contactless Permittivity Measurements With Direct Digital Read-Out. <i>IEEE Microwave and Wireless Components Letters</i>, <i>27</i>(2), 198–200. <a href=\"https://doi.org/10.1109/LMWC.2017.2649384\">https://doi.org/10.1109/LMWC.2017.2649384</a>","bibtex":"@article{Wessel_Schmalz_Scheytt_Kissinger_2017, title={A 120-GHz Electrical Interferometer for Contactless Permittivity Measurements With Direct Digital Read-Out}, volume={27}, DOI={<a href=\"https://doi.org/10.1109/LMWC.2017.2649384\">10.1109/LMWC.2017.2649384</a>}, number={2}, journal={IEEE Microwave and Wireless Components Letters}, author={Wessel, Jan and Schmalz, Klaus and Scheytt, Christoph and Kissinger, Dietmar}, year={2017}, pages={198–200} }","chicago":"Wessel, Jan, Klaus Schmalz, Christoph Scheytt, and Dietmar Kissinger. “A 120-GHz Electrical Interferometer for Contactless Permittivity Measurements With Direct Digital Read-Out.” <i>IEEE Microwave and Wireless Components Letters</i> 27, no. 2 (2017): 198–200. <a href=\"https://doi.org/10.1109/LMWC.2017.2649384\">https://doi.org/10.1109/LMWC.2017.2649384</a>.","short":"J. Wessel, K. Schmalz, C. Scheytt, D. Kissinger, IEEE Microwave and Wireless Components Letters 27 (2017) 198–200."},"_id":"24227","title":"A 120-GHz Electrical Interferometer for Contactless Permittivity Measurements With Direct Digital Read-Out","department":[{"_id":"58"}],"publication_identifier":{"eissn":["1558-1764"]},"volume":27,"author":[{"last_name":"Wessel","full_name":"Wessel, Jan","first_name":"Jan"},{"last_name":"Schmalz","full_name":"Schmalz, Klaus","first_name":"Klaus"},{"first_name":"Christoph","full_name":"Scheytt, Christoph","id":"37144","last_name":"Scheytt"},{"first_name":"Dietmar","full_name":"Kissinger, Dietmar","last_name":"Kissinger"}],"status":"public","intvolume":"        27","year":"2017","page":"198-200","doi":"10.1109/LMWC.2017.2649384","issue":"2","related_material":{"link":[{"relation":"confirmation","url":"https://ieeexplore.ieee.org/document/7845690"}]},"date_created":"2021-09-13T08:20:44Z","abstract":[{"lang":"eng","text":"This work describes an electrical interferometer for contactless permittivity measurements working at 120 GHz. It was fabricated in a 130 nm SiGe process featuring an ft and fmax of 240 and 330 GHz. The on-chip system contains a 120 GHz VCO with a tuning range of 7 GHz featuring a divide-by-64 circuit to enable external PLL operation. The subsequent buffer provides 7 dBm of output power at 120 GHz. Additionally, the IC contains high-precision and high-resolution phase shifters based on a slow-wave transmission line approach with digital control for direct readout ability. A 120 GHz LNA with 17 dB gain and a power detector to provide DC output signals were realized on chip. It enables sample emulation capability by phase shift inducement in the measurement as well as a reference transmission line. In terms of phase detection, the system shows a sensitivity of 907.36 MHz/°."}]}