Generation of Radiation Patterns Equivalent to In-Flight Measurements

Authors

  • Ruben P. Ortega NAWCAD Radar, Antenna, and Sensor Fusion Division Patuxent River, MD, USA
  • Lauren M. Jugler NAWCAD Radar, Antenna, and Sensor Fusion Division Patuxent River, MD, USA
  • Yaseman Shiri NAWCAD Radar, Antenna, and Sensor Fusion Division Patuxent River, MD, USA
  • Saad N. Tabet NAWCAD Radar, Antenna, and Sensor Fusion Division Patuxent River, MD, USA

Keywords:

Great circle, in-flight measurements, radiation pattern, WIPL-D

Abstract

Comparison of in-situ measured antenna radiation patterns (RPs) to modeled ones is vital for validation of both. Inflight measured RPs do not always produce a standard conic or elevation cut (constant θ or ϕ angle, respectively), but rather Great Circle (GC) cuts at the aircraft bank angle of interest. WIPL-D’s post-processing routines, on the other hand, do not produce GC cuts in normal setups. A manipulation of the aircraft orientation in xyz-coordinates is required to accomplish this task. Under standard conditions in WIPL-D, the fuselage is positioned parallel to the x-axis and the wings parallel to the y-axis. A model rotation of 90° with respect to the y-axis allows for the generation of GC cuts, where θ and ϕ swap roles. This makes comparison between in-flight measurements and computed data cumbersome. This paper investigates several options to produce non-standard RPs in WIPL-D and MATLAB (using WIPL-D results) that are equivalent to those of in-flight measurements.

References

G. Strang, Linear Algebra and its Applications. 4th Edition, Belmont, CA: Thompson Corporation, 2006, pp. 130-132.

WIPL-D Pro, Software and User’s Manual, WIPL-D d.o.o., Belgrade, Serbia 2019.

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Published

2020-11-07

How to Cite

Ruben P. Ortega, Lauren M. Jugler, Yaseman Shiri, & Saad N. Tabet. (2020). Generation of Radiation Patterns Equivalent to In-Flight Measurements. The Applied Computational Electromagnetics Society Journal (ACES), 35(11), 1298–1299. Retrieved from https://journals.riverpublishers.com/index.php/ACES/article/view/7495

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Articles