@inproceedings{5f1ce7128c734e4a9d8ccf8cf4c3d136,
title = "Single-Ended Oscillation-Based Test Technique for Passive RF Phase Shifters",
abstract = "Phased array systems have become paramount to the development of next generation wireless communication networks, with errors on phase shifters contributing to beam pointing error. Oscillation-based built-in self-testing (OBIST) of phase shifters may improve on this accuracy. We propose a single-ended oscillation-based test technique for passive RF phase shifters. The method uses a negative resistance oscillator topology, where the phase shifter is used to capacitively load the active negative resistance circuit resulting in a dependency between relative phase shift and output oscillation frequency. Simulation results indicate an average sensitivity of 0.14 MHz/° of phase shift around a nominal 617 MHz output oscillation when testing an X-band reflection-type phase shifter, while the addition of OBT circuitry increases the phase shifter's mid-band insertion loss by 0.93 dB..",
keywords = "Built-in self-test, Oscillation-based test, Phase shifters, Phased arrays",
author = "Venter, {Johannes J.P.} and Tinus Stander",
note = "Publisher Copyright: {\textcopyright} 2021 IEEE.; 15th International Conference on Advanced Technologies, Systems and Services in Telecommunications, TELSIKS 2021 ; Conference date: 20-10-2021 Through 22-10-2021",
year = "2021",
doi = "10.1109/TELSIKS52058.2021.9606315",
language = "English",
series = "2021 15th International Conference on Advanced Technologies, Systems and Services in Telecommunications, TELSIKS 2021 - Proceedings",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "103--106",
editor = "Milovanovic, {Bratislav D.} and Doncov, {Nebojsa S.} and Stankovic, {Zoran Z.} and Stosic, {Biljana P.}",
booktitle = "2021 15th International Conference on Advanced Technologies, Systems and Services in Telecommunications, TELSIKS 2021 - Proceedings",
address = "United States",
}