Comparing Channel Emulation Algorithms by Using Plane Waves and Spherical Vector Waves in Multi-Probe Anechoic Chamber Setups

Yang Miao, Wei Fan, Junichi Takada, Ruisi He, Xuefeng Yin, Mi Yang, Jose Rodrıguez-Pineiro, Andres Alayon Glazunov, Wei Wang, Yi Gong

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

This paper evaluates the performances of channel emulation algorithms in the multiprobe anechoic chamber (MPAC) by using plane wave (PW) and spherical vector wave (SVW) theories. Channel emulation in MPAC enables the over-the-air (OTA) testing of performances of wireless devices under realistic propagation scenarios, through setting excitation voltages of probes and utilizing the polarized radiation patterns, locations, and orientations of probe antennas to emulate desired fields in test zone. Accurate emulation of radio wave propagation in target scenario guarantees that the device under test (DUT) be assessed fairly in the laboratory. Dynamic multipath scenario and orthogonal polarization can be emulated by exciting the multiple probes in such a way that the total fields from probes resemble the target impinging field in the test zone. The excitation voltages can be either calculated by PW or SVW theories. Despite the fact that PW and SVW are mathematically equal in the far field, different treatments on rotation and translation of waves as well as different linear equations used in two methods result in different computed voltages, hence, different emulated fields. The emulation performances of the two methods with different MPAC setups (e.g., test zone size, probe number, probe sphere radius, and probe directivity) are investigated. Both scenarios of the 2-D field emulation with the 2-D probe configuration and the 3-D (or 2.5-D) field emulation with the 3-D probe configuration are discussed, and instructions on how to wisely use the emulation algorithm are provided.

Original languageEnglish
Article number8657705
JournalI E E E Transactions on Antennas and Propagation
Volume67
Issue number6
Pages (from-to)4091-4103
Number of pages13
ISSN0018-926X
DOIs
Publication statusPublished - 12 Feb 2019

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Anechoic chambers
Electric potential
Radio waves
Directional patterns (antenna)
Linear equations
Wave propagation
Polarization
Antennas

Keywords

  • Channel emulation
  • multipath
  • multiprobe anechoic chamber (MPAC)
  • over-the-air (OTA) testing
  • plane wave (PW)
  • spherical vector wave (SVW)

Cite this

Miao, Yang ; Fan, Wei ; Takada, Junichi ; He, Ruisi ; Yin, Xuefeng ; Yang, Mi ; Rodrıguez-Pineiro, Jose ; Alayon Glazunov, Andres ; Wang, Wei ; Gong, Yi . / Comparing Channel Emulation Algorithms by Using Plane Waves and Spherical Vector Waves in Multi-Probe Anechoic Chamber Setups. In: I E E E Transactions on Antennas and Propagation. 2019 ; Vol. 67, No. 6. pp. 4091-4103.
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title = "Comparing Channel Emulation Algorithms by Using Plane Waves and Spherical Vector Waves in Multi-Probe Anechoic Chamber Setups",
abstract = "This paper evaluates the performances of channel emulation algorithms in the multiprobe anechoic chamber (MPAC) by using plane wave (PW) and spherical vector wave (SVW) theories. Channel emulation in MPAC enables the over-the-air (OTA) testing of performances of wireless devices under realistic propagation scenarios, through setting excitation voltages of probes and utilizing the polarized radiation patterns, locations, and orientations of probe antennas to emulate desired fields in test zone. Accurate emulation of radio wave propagation in target scenario guarantees that the device under test (DUT) be assessed fairly in the laboratory. Dynamic multipath scenario and orthogonal polarization can be emulated by exciting the multiple probes in such a way that the total fields from probes resemble the target impinging field in the test zone. The excitation voltages can be either calculated by PW or SVW theories. Despite the fact that PW and SVW are mathematically equal in the far field, different treatments on rotation and translation of waves as well as different linear equations used in two methods result in different computed voltages, hence, different emulated fields. The emulation performances of the two methods with different MPAC setups (e.g., test zone size, probe number, probe sphere radius, and probe directivity) are investigated. Both scenarios of the 2-D field emulation with the 2-D probe configuration and the 3-D (or 2.5-D) field emulation with the 3-D probe configuration are discussed, and instructions on how to wisely use the emulation algorithm are provided.",
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author = "Yang Miao and Wei Fan and Junichi Takada and Ruisi He and Xuefeng Yin and Mi Yang and Jose Rodrıguez-Pineiro and {Alayon Glazunov}, Andres and Wei Wang and Yi Gong",
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Miao, Y, Fan, W, Takada, J, He, R, Yin, X, Yang, M, Rodrıguez-Pineiro, J, Alayon Glazunov, A, Wang, W & Gong, Y 2019, 'Comparing Channel Emulation Algorithms by Using Plane Waves and Spherical Vector Waves in Multi-Probe Anechoic Chamber Setups', I E E E Transactions on Antennas and Propagation, vol. 67, no. 6, 8657705, pp. 4091-4103. https://doi.org/10.1109/TAP.2019.2902728

Comparing Channel Emulation Algorithms by Using Plane Waves and Spherical Vector Waves in Multi-Probe Anechoic Chamber Setups. / Miao, Yang; Fan, Wei; Takada, Junichi; He, Ruisi; Yin, Xuefeng ; Yang, Mi ; Rodrıguez-Pineiro, Jose ; Alayon Glazunov, Andres ; Wang, Wei ; Gong, Yi .

In: I E E E Transactions on Antennas and Propagation, Vol. 67, No. 6, 8657705, 12.02.2019, p. 4091-4103.

Research output: Contribution to journalJournal articleResearchpeer-review

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AU - Miao, Yang

AU - Fan, Wei

AU - Takada, Junichi

AU - He, Ruisi

AU - Yin, Xuefeng

AU - Yang, Mi

AU - Rodrıguez-Pineiro, Jose

AU - Alayon Glazunov, Andres

AU - Wang, Wei

AU - Gong, Yi

PY - 2019/2/12

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N2 - This paper evaluates the performances of channel emulation algorithms in the multiprobe anechoic chamber (MPAC) by using plane wave (PW) and spherical vector wave (SVW) theories. Channel emulation in MPAC enables the over-the-air (OTA) testing of performances of wireless devices under realistic propagation scenarios, through setting excitation voltages of probes and utilizing the polarized radiation patterns, locations, and orientations of probe antennas to emulate desired fields in test zone. Accurate emulation of radio wave propagation in target scenario guarantees that the device under test (DUT) be assessed fairly in the laboratory. Dynamic multipath scenario and orthogonal polarization can be emulated by exciting the multiple probes in such a way that the total fields from probes resemble the target impinging field in the test zone. The excitation voltages can be either calculated by PW or SVW theories. Despite the fact that PW and SVW are mathematically equal in the far field, different treatments on rotation and translation of waves as well as different linear equations used in two methods result in different computed voltages, hence, different emulated fields. The emulation performances of the two methods with different MPAC setups (e.g., test zone size, probe number, probe sphere radius, and probe directivity) are investigated. Both scenarios of the 2-D field emulation with the 2-D probe configuration and the 3-D (or 2.5-D) field emulation with the 3-D probe configuration are discussed, and instructions on how to wisely use the emulation algorithm are provided.

AB - This paper evaluates the performances of channel emulation algorithms in the multiprobe anechoic chamber (MPAC) by using plane wave (PW) and spherical vector wave (SVW) theories. Channel emulation in MPAC enables the over-the-air (OTA) testing of performances of wireless devices under realistic propagation scenarios, through setting excitation voltages of probes and utilizing the polarized radiation patterns, locations, and orientations of probe antennas to emulate desired fields in test zone. Accurate emulation of radio wave propagation in target scenario guarantees that the device under test (DUT) be assessed fairly in the laboratory. Dynamic multipath scenario and orthogonal polarization can be emulated by exciting the multiple probes in such a way that the total fields from probes resemble the target impinging field in the test zone. The excitation voltages can be either calculated by PW or SVW theories. Despite the fact that PW and SVW are mathematically equal in the far field, different treatments on rotation and translation of waves as well as different linear equations used in two methods result in different computed voltages, hence, different emulated fields. The emulation performances of the two methods with different MPAC setups (e.g., test zone size, probe number, probe sphere radius, and probe directivity) are investigated. Both scenarios of the 2-D field emulation with the 2-D probe configuration and the 3-D (or 2.5-D) field emulation with the 3-D probe configuration are discussed, and instructions on how to wisely use the emulation algorithm are provided.

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KW - multiprobe anechoic chamber (MPAC)

KW - over-the-air (OTA) testing

KW - plane wave (PW)

KW - spherical vector wave (SVW)

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