A novel analysis of the beam squinting in wideband phased array digital I/Q transmitters

Veselin Manev, Marios Neofytou, Georgi Radulov, Kostas Doris

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

Samenvatting

This paper investigates the beam squint of direct conversion phased array transmitters with quadrature modulation and digital beam-forming. Beam squint occurs due to frequency dependent beam forming and leads to signal deterioration. It is analyzed in terms of EVM and maximum bit-rate, using both analytical and numerical computation. Various results illustrate the dependencies of the error mechanism on key design parameters in mm-wave transmitters. It is shown that having 14 elements and 120° scanning angle limits the theoretical maximum bitrate by 84% We show that using partial symbol delay in baseband, the EVM can be improved up to-30dB for 10 elements and more, without any apparent disadvantages. Moreover the bitrate theoretical maximum is increased by 4 times.

Originele taal-2Engels
TitelECCTD 2020 - 24th IEEE European Conference on Circuit Theory and Design
UitgeverijInstitute of Electrical and Electronics Engineers
Aantal pagina's4
ISBN van elektronische versie978-1-7281-7183-8
DOI's
StatusGepubliceerd - sep 2020
Evenement24th IEEE European Conference on Circuit Theory and Design, ECCTD 2020 - Sofia, Bulgarije
Duur: 7 sep 202010 sep 2020

Congres

Congres24th IEEE European Conference on Circuit Theory and Design, ECCTD 2020
LandBulgarije
StadSofia
Periode7/09/2010/09/20

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