---
_id: '24227'
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/°.
author:
- first_name: Jan
  full_name: Wessel, Jan
  last_name: Wessel
- first_name: Klaus
  full_name: Schmalz, Klaus
  last_name: Schmalz
- first_name: Christoph
  full_name: Scheytt, Christoph
  id: '37144'
  last_name: Scheytt
- first_name: Dietmar
  full_name: Kissinger, Dietmar
  last_name: Kissinger
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>
  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>.'
  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>.'
  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>.
  short: J. Wessel, K. Schmalz, C. Scheytt, D. Kissinger, IEEE Microwave and Wireless
    Components Letters 27 (2017) 198–200.
date_created: 2021-09-13T08:20:44Z
date_updated: 2022-01-06T06:56:13Z
department:
- _id: '58'
doi: 10.1109/LMWC.2017.2649384
intvolume: '        27'
issue: '2'
language:
- iso: eng
page: 198-200
publication: IEEE Microwave and Wireless Components Letters
publication_identifier:
  eissn:
  - 1558-1764
related_material:
  link:
  - relation: confirmation
    url: https://ieeexplore.ieee.org/document/7845690
status: public
title: A 120-GHz Electrical Interferometer for Contactless Permittivity Measurements
  With Direct Digital Read-Out
type: journal_article
user_id: '15931'
volume: 27
year: '2017'
...