University of Oulu

M. E. Leinonen, K. Nevala, N. Tervo and A. Pärssinen, "Linearity Measurement of 6G Receiver with One Transmission Frequency Extender Operating at 330 GHz," 2021 96th ARFTG Microwave Measurement Conference (ARFTG), 2021, pp. 1-4, doi: 10.1109/ARFTG49670.2021.9425334

Linearity measurement of 6G receiver with one transmission frequency extender operating at 330 GHz

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Author: Leinonen, Marko E.1; Nevala, Klaus1; Tervo, Nuutti1;
Organizations: 1Centre for Wireless Communications, University of Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.3 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2021
Publish Date: 2021-08-23


The future sixth-generation (6G) is envisioned to support data rates up to 1 Tbps. The operational frequencies of the 6G system will be expanded towards the sub-mmW and THz regions. The 6G systems will utilize directive beams, as well, to compensate increased signal attenuation between link ends. The linearity of a receiver (Rx) is one of the most significant parameters for any radio system. Traditional Rx linearity measurement relies on a two-tone measurement technique, which requires two dedicated RF signals and combining them to the test signal. The generation of two independent RF signals at a 300 GHz frequency band leads to a costly and bulky solution. This paper proposes a linearity measurement method for 6G Rx, which uses only one continuous wave transmission frequency extender. A method is proposed where the RF input signal of frequency extender is narrowband amplitude modulated (AM), generating side tones around continuous wave carrier. The carrier frequency and first side tones are used as test signals, and the linearity test is like a traditional two-tone test with unequal signals. It is shown that the carrier level can be modified by back-offing the RF input power in the frequency extender input. By varying the AM modulation index, the side tones’ levels can be varied, enabling the sweep of the tone input power to perform Rx linearity measurements.

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ISBN: 978-1-7281-7420-4
ISBN Print: 978-1-7281-7421-1
Pages: 1 - 4
Article number: 9425334
DOI: 10.1109/ARFTG49670.2021.9425334
Host publication: 96th ARFTG Microwave Measurement Conference, ARFTG 2021
Conference: ARFTG Microwave Measurement Conference
Type of Publication: A4 Article in conference proceedings
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This work has been financially supported in part by the Academy of Finland 6Genesis Flagship (grant 318927), in part Business Finland funded 5G Finnish Open Research Collaboration Ecosystem (5G-FORCE), and in part Business Finland funded 5G-VIIMA. Keysight Inc. has supported the research with measurement equipment donation.
Academy of Finland Grant Number: 318927
Detailed Information: 318927 (Academy of Finland Funding decision)
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