--- res: bibo_abstract: - 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/°.@eng bibo_authorlist: - foaf_Person: foaf_givenName: Jan foaf_name: Wessel, Jan foaf_surname: Wessel - foaf_Person: foaf_givenName: Klaus foaf_name: Schmalz, Klaus foaf_surname: Schmalz - foaf_Person: foaf_givenName: Christoph foaf_name: Scheytt, Christoph foaf_surname: Scheytt foaf_workInfoHomepage: http://www.librecat.org/personId=37144 - foaf_Person: foaf_givenName: Dietmar foaf_name: Kissinger, Dietmar foaf_surname: Kissinger bibo_doi: 10.1109/LMWC.2017.2649384 bibo_issue: '2' bibo_volume: 27 dct_date: 2017^xs_gYear dct_isPartOf: - http://id.crossref.org/issn/1558-1764 dct_language: eng dct_title: A 120-GHz Electrical Interferometer for Contactless Permittivity Measurements With Direct Digital Read-Out@ ...