Acoustic Model L-Band Aircraft Antenna Radiation Coverage Questions

Author

Hayre, H.S.

Author_Institution

Professor & Director, Wave Propagation Laboratories, Electrical Engineering Department, University of Houston, Houston, Texas 77004 (U.S.A)

fYear

1975

fDate

1-4 Sept. 1975

Firstpage

663

Lastpage

667

Abstract

The number and location of cavity-blocked T-slot antenna for a specified radiation coverage on F-102 aircraft were optimized using an acoustic airframe model, and a special 0.2 MHz (thickness mode) spherical transducer to model the antenna. The model results were verified using the full-scale electromagnetic field data obtained at 1775 MHz for circular polarization. This technique is inexpensive, easy and quick to implement, and as exact as the match between the radiation patterns of the transducer and the antenna it represents. Computer simulation usually yields approximate results since surface wave, shadow, and multiple scattering effects cannot be incorporated. Similarly high frequency R.F. modeling, when feasible, is sensitive to model surface roughness, and is not suited for studying antenna location effects.

Keywords

Acoustic transducers; Aircraft; Antenna radiation patterns; Electromagnetic fields; Electromagnetic modeling; Electromagnetic wave polarization; L-band; Pattern matching; Rough surfaces; Surface roughness;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 1975. 5th European

Conference_Location

Hamburg, Germany

Type

conf

DOI

10.1109/EUMA.1975.332188

Filename

4130887