Comparing Channel Emulation Algorithms by Using Plane Waves and Spherical Vector Waves in Multiprobe Anechoic Chamber Setups
Artikel i vetenskaplig tidskrift, 2019

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 PWor 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.

Channel emulation

multiprobe anechoic chamber (MPAC)

spherical vector wave (SVW)

multipath

over-the-air (OTA) testing

plane wave (PW)

Författare

Yang Miao

Southern University of Science and Technology

Wei Fan

Aalborg Universitet

Junichi Takada

Tokyo Institute of Technology

Ruisi He

Beijing Jiaotong University

Xuefeng Yin

Tongji University

Mi Yang

Beijing Jiaotong University

Jose Rodriguez-Pineiro

Tongji University

Andres Alayon Glazunov

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Antennsystem

Wei Wang

Changan University

Yi Gong

Southern University of Science and Technology

IEEE Transactions on Antennas and Propagation

0018-926X (ISSN)

Vol. 67 6 4091-4103

Ämneskategorier

Telekommunikation

Teknisk mekanik

Signalbehandling

DOI

10.1109/TAP.2019.2902728

Mer information

Senast uppdaterat

2020-01-20