Abstract
In this paper, we describe the design of an electrically large anechoic chamber for usage on millimetre-wave bands. Ansys Savant sotware was used to perform a simulation of the chamber, using physical optics coupled with uniform theory of diffraction (PO/UTD). Moreover, a method based on an open waveguide probe is described in this paper to obtain the electrical properties of the RF absorbers at millimetre-wave frequencies. Two different source antennas were simulated in this work and the corresponding quiet zones predicted. The largest quiet zone was 30 m m × 30 m m × 50 m m , for a chamber size of 1.2 m m × 0.6 m m × 0.6 m .
Highlights
The history of wireless communications began around 1895, when Guglielmo Marconi performed the first successful radio communication between two distinct places, demonstrating the transmission of radio signals without wires
We present an anechoic chamber design suitable for antenna measurements at millimetre wave range, using PO/UTD simulations, which has never been reported to the extent of the authors’ knowledge
The testing zone of an anechoic chamber must meet a set of requirements for antenna measurements to be feasible
Summary
The history of wireless communications began around 1895, when Guglielmo Marconi performed the first successful radio communication between two distinct places, demonstrating the transmission of radio signals without wires. The presented design is to obtain a smaller chamber and understand the radio wave absorbers behaviour, the antenna gain and the attention that must exist in order to obtain a credible measurements in these frequency bands This change in the antenna paradigm implies that a new anechoic chamber must be redesigned in order to attend the requirements of 5G antennas and beyond. We present an anechoic chamber design suitable for antenna measurements at millimetre wave range, using PO/UTD simulations, which has never been reported to the extent of the authors’ knowledge We show how this simulation method can be used to obtain the incident and reflected fields, in an electrically large yet reduced size chamber, with electrically large absorber geometries. By post-processing the field data obtained from the PO/UTD simulation, we could obtain the quiet zone dimensions and its spatial representation
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