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A 28 GHz Highly Accurate Phase- and Gain-Steering Transmitter Frontend for 5G Phased-Array Applications

Title data

Kolb, Katharina ; Potschka, Julian ; Maiwald, Tim ; Aufinger, Klaus ; Hagelauer, Amélie ; Dietz, Marco ; Weigel, Robert:
A 28 GHz Highly Accurate Phase- and Gain-Steering Transmitter Frontend for 5G Phased-Array Applications.
In: IEEE (ed.): 2020 IEEE 63rd International Midwest Symposium on Circuits and Systems (MWSCAS). - Piscataway, NJ : IEEE , 2020 . - pp. 432-435
ISBN 978-1-7281-8058-8
DOI: https://doi.org/10.1109/MWSCAS48704.2020.9184577

Official URL: Volltext

Abstract in another language

This paper presents a 28 GHz highly accurate phase-and gain-steering transmitter frontend for 5G phased-array repeater applications. It is designed in a 130 nm SiGe BiCMOS technology. The transmitter chain consists of a highly accurate 7-bit phase shifter, a 5-bit variable gain amplifier and an exceedingly linear analog predistorted power amplifier. The frontend provides up to 31.9 dB gain at 28 GHz and offers steering ranges of 9 dB for gain and 360° for phase. The root mean square (RMS) phase error of the transmitter frontend is less than 3.1 °, the RMS gain error results to 0.5 dB. An output-referred 1 dB-compression point (P 1 dB) of 9.9 dBm is achieved with a DC power consumption of 127.9 mW at voltage levels of 3.3/4.0 V.

Further data

Item Type: Article in a book
Refereed: Yes
Keywords: Gain; Transmitters; Phase shifters; BiCMOS integrated circuits; Transistors; Baluns; 5G mobile communication
Institutions of the University: Faculties > Faculty of Engineering Science > Chair Communication Electronics > Chair Communication Electronics - Univ.-Prof. Dr.-Ing. Amélie Marietta Hagelauer
Result of work at the UBT: No
DDC Subjects: 600 Technology, medicine, applied sciences > 620 Engineering
Date Deposited: 19 Nov 2020 09:19
Last Modified: 19 Nov 2020 09:19
URI: https://eref.uni-bayreuth.de/id/eprint/57378