Memorias de investigación
Communications at congresses:
Combination of Spherical and Planar Scanning for Phaseless Near-Field Antenna Measurements
Year:2019

Research Areas
  • Engineering,
  • Telecommunications

Information
Abstract
The two scans phaseless technique is a well-known procedure for the characterization of antennas on near-field ranges without need of measuring the phase. Amplitude information over two surfaces compensates for the lack of phase reference. In this paper we propose the combination of spherical and planar surfaces for the application of the two scans technique, together with the application of Wirtinger Flow, a state-of-the art phase retrieval algorithm with high convergence guarantees. The use of different types of surface adds additional information about the field?s degrees of freedom, allowing for smaller separation between acquisition surfaces as compared with the 2-sphere techniques. In addition, an initial estimation for the phase is not required. The phase retrieval process is formulated in terms of the Spherical Wave Expansion (SWE) of the antenna under test. The SWE-to-PWE (Plane Wave Expansion) is utilized in order to process the amplitude field on the planar surface. Results for simulated and measured near-field data are shown to demonstrate the potential capabilities of the proposed technique.
International
Si
Congress
41st? ?Annual? ?Meeting? ?and? ?Symposium? ?of? ?the? ?Antenna? ?Measurement? ?Techniques Association (AMTA)
960
Place
San Diego, California
Reviewers
Si
ISBN/ISSN
978-1-7281-4525-9
Start Date
06/10/2019
End Date
11/10/2019
From page
1
To page
6
2019 Antenna Measurement Techniques Association Symposium (AMTA)
Participants
  • Autor: Fernando Rodriguez Varela UPM
  • Autor: Belen Galocha Iraguen UPM
  • Autor: Manuel Sierra Castañer UPM
  • Autor: Javier Fernández Álvarez Department of Electrical Engineering, Technical University of Denmark Kgs. Lyngby, Denmark
  • Autor: Michael Mattes Department of Electrical Engineering, Technical University of Denmark Kgs. Lyngby, Denmark
  • Autor: Olav Breinbjerg Department of Electrical Engineering, Technical University of Denmark Kgs. Lyngby, Denmark

Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Radiación
  • Centro o Instituto I+D+i: Centro de I+d+i en Procesado de la Información y Telecomunicaciones
  • Departamento: Señales, Sistemas y Radiocomunicaciones