NDLI: Indoor dual polarised radio channel characterisation in the 54 and 70 GHz bands

Content Provider	IET Digital Library
Author	Raimundo, Xavier Salous, Sana Cheema, Adnan
Abstract	In this study, results of wideband dual polarised measurements conducted in indoor environments including office, factory, corridor and computer foyer, using state-of-the-art 2×2 multiple-input–multiple-output frequency modulated continuous wave-based channel sounder, are presented. The measurements were performed in two frequency bands with 6 GHz bandwidth, centred at 54 and 70 GHz, with directional steerable ∼20 dBi (18° beamwidth) horn antennas. Using twists at the transmitter and at the receiver simultaneous co-polar and cross-polar measurements were performed to quantify the polarisation effects on channel parameters such as angular spread, delay spread and path loss. The results show that the co-polarised radio links experienced lower angular spread and delay spread compared with the cross-polarised links. For co-polarised links, the estimated synthesised omnidirectional path loss exponent was found to be in the range of 1.5–2 (close-in model) and 0.9–1.9 (log-distance model) in the respective environments. In individual scenarios, the median cross-polarisation ratio was found to be within 11.7–14.4 and 7.5–17.6 dB at 54 and 70 GHz, respectively.
Starting Page	1287
Ending Page	1292
Page Count	6
ISSN	17518725
Volume Number	12
e-ISSN	17518733
Issue Number	Issue 8, Jul (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-map/12/8
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-map.2017.0711
Journal	IET Microwaves, Antennas & Propagation
Publisher Date	2018-02-05
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Antenna Radiation Pattern Broadband Antenna Co-polar Measurement Cross-polar Measurement Frequency 54 GHz Frequency 70 GHz Horn Antenna Indoor Dual Polarised Radio Channel Characterisation Multiple-input–multiple-output Frequency Modulated Continuous Wave-based Channel Sounder Omnidirectional Path Loss Exponent Single Antenna Wideband Dual Polarised Measurement
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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