Abstract
Geometrical scale modeling is often necessary to perform measurements of parameters and figures-of-merit of antennas and radar targets with large physical dimensions that cannot be accommodated in indoor and controlled experimental facilities. The measured and simulated parameters and figures-of-merit of the scaled-models can then be translated to represent, if transformed properly, those of the full-scale models. In this paper, the basic theory is summarized which relates the gain and the echo area (RCS) of scaled models to those of their full-scale counterparts. Simulations and measurements are performed on scaled models, for both gain and RCS, and compared with those of full-scale models to verify the geometrical scaling. For the gain, a quarter-wavelength monopole on a scaled helicopter airframe, and for the RCS, a flat plate of complex configuration, are considered for simulations, measurements and comparisons. A very good agreement has been obtained for both gain and RCS between both sets of data.
Original language | English (US) |
---|---|
Pages | 95-98 |
Number of pages | 4 |
Volume | 33 |
No | 1 |
Specialist publication | Applied Computational Electromagnetics Society Newsletter |
State | Published - Jan 1 2018 |
Keywords
- Antenna
- Gain
- Measurement
- Radar cross section
- Scale model
ASJC Scopus subject areas
- Astronomy and Astrophysics
- Electrical and Electronic Engineering