Modeling of planar spiral antenna mounted on a rocket shaped structure using wedge diffraction analysis

Author

Rao, B. Rama Krishna ; Murthy, Sarma S N ; Sarma, A.D. ; Ravindra, K.

Author_Institution

Defence Electron. & Res. Labs., Hyderabad, India

fYear

2002

fDate

6/24/1905 12:00:00 AM

Firstpage

287

Lastpage

289

Abstract

The location of the antenna on an aircraft plays a major role in improving the system performance. It is essential to locate the antennas in such a way that their radiation characteristics will be least distorted even under the influence of surroundings and EMI/EMC problems due to other electronic systems already installed on the aircraft. To predict the distortion in the radiation pattern of a planar cavity backed spiral antenna on board airborne platform, a novel technique is used using wedge diffraction theory. The experimental measurements are carried out in an anechoic chamber. The results predicted in the elevation plane is compared with experimental results and found to agree well.

Keywords

aircraft antennas; antenna radiation patterns; electromagnetic compatibility; electromagnetic interference; electromagnetic wave diffraction; spiral antennas; EMI/EMC problems; airborne platform; aircraft; anechoic chamber; electronic systems; elevation plane; planar cavity backed spiral antenna; planar spiral antenna; radiation characteristics; radiation pattern distortion; rocket shaped structure; system performance; wedge diffraction analysis; Aerospace electronics; Aircraft; Antenna radiation patterns; Antenna theory; Diffraction; Electromagnetic compatibility; Electromagnetic interference; Rockets; Spirals; System performance;

fLanguage

English

Publisher

ieee

Conference_Titel

Electromagnetic Interference and Compatibility, 2001/02. Proceedings of the International Conference on

Print_ISBN

0-7803-7563-7

Type

conf

DOI

10.1109/ICEMIC.2002.1006539

Filename

1006539