Title :
Analysis of printed antennas embedded in a composite material loaded with lightning protection metallic screen
Author :
Deshpande, Manohar D.
Author_Institution :
NASA Langley Res. Center, Hampton, VA, USA
Abstract :
An integral equation method is presented to estimate the electromagnetic performance of a printed antenna embedded in a composite substrate loaded with a metallic screen used for the lightning protection of an aircraft. Expressing the electric surface current density on the metallic screen in appropriate periodic functions and the small local disturbance caused by the printed antenna in terms of discrete basis functions, the integral equations with these currents as unknowns are developed. The unknown currents on the periodic metallic screen and the printed antenna are determined by application of the method of moments. The electromagnetic performance parameters such as the input impedance and radiation patterns of printed antenna are studied.
Keywords :
aircraft antennas; antenna radiation patterns; antenna theory; composite materials; electric impedance; electromagnetic shielding; integral equations; lightning protection; method of moments; microstrip antennas; periodic structures; antenna radiation patterns; discrete basis functions; electric surface current density; electromagnetic performance; embedded printed antenna; input impedance; integral equation method; lightning protection; local disturbance; metallic screen loaded composite material substrate; method of moments; periodic functions; periodic metallic screen; unknown currents; Aircraft; Antenna radiation patterns; Composite materials; Current density; Electromagnetic radiation; Impedance; Integral equations; Lightning protection; Loaded antennas; Moment methods;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2004. IEEE
Print_ISBN :
0-7803-8302-8
DOI :
10.1109/APS.2004.1331863
