A New Hybrid Chamber for Generating a Spectrum of Oblique Incident Plane Waves at the DUT
Artikel i vetenskaplig tidskrift, 2021

A novel type of hybrid measurement facility comprising a chamber antenna array (CAA) inside an overmoded waveguide is proposed and analyzed numerically. The reflecting walls of the metal rectangular waveguide (WG) are used in conjunction with a CAA to synthesize obliquely incident plane wave (PW) fields at the device under test (DUT). This enables increased flexibility in emulating almost any PW multipath testing conditions in the WG chamber without the high cost and complexity of classical anechoic measurement systems employing relatively large phase-steered plane wave generators. A modeling framework is proposed that has been used to devise first-order design rules (e.g. the number of independent propagating modes, dimensions of the WG, CAA, and DUT). Afterwards, an optimally beamformed CAA example is presented to numerically validate the quality of the on- and off-axis plane wave fields in the test zone. This study shows design trade-offs between the amplitude ripple in the DUT region, the total power focused in this region, the DUT size and the angle of incidence.

Antenna measurements

Mathematical model


Plane wave generator

antenna measurements

Rectangular waveguides


Phased arrays

Planar waveguides

antenna characterization


Rob Maaskant

Chalmers, Elektroteknik, Kommunikations- och antennsystem

Oleg Iupikov

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Antennsystem

Pavlo Krasov

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Antennsystem

Robert Rehammar


Andres Alayon Glazunov

Universiteit Twente

Marianna Ivashina

Chalmers, Elektroteknik, Kommunikations- och antennsystem, Antennsystem

IEEE Transactions on Antennas and Propagation

0018-926X (ISSN)

Vol. In Press


Teknisk mekanik

Strömningsmekanik och akustik

Annan elektroteknik och elektronik



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