Title :
Spectral domain analysis of doped electromagnetic crystal radomes using the method of moments
Author_Institution :
Northrop Grumman Corp., El Segundo, CA, USA
Abstract :
The moment method is applied in the spectral domain to yield a matrix eigenvalue equation for producing ω-β diagrams for doped, metallic electromagnetic crystal structures (ECS). Computed results are obtained for a wire mesh lattice containing a superlattice of wire cut defects. Results show the emergence of a very narrow passband within the bandgap of the undoped structure. This new passband is tunable, and indicates the potential for smart skin structures made using ECSs.
Keywords :
eigenvalues and eigenfunctions; frequency selective surfaces; intelligent sensors; method of moments; microwave antennas; radomes; spectral-domain analysis; ω-β diagrams; bandgap; doped electromagnetic crystal radomes; frequency selective volume; matrix eigenvalue equation; method of moments; microwave antenna; smart skin structures; spectral domain analysis; wire cut defects; wire mesh lattice; Eigenvalues and eigenfunctions; Electromagnetic analysis; Equations; Lattices; Moment methods; Passband; Photonic band gap; Spectral analysis; Superlattices; Wire;
Conference_Titel :
Aerospace Conference Proceedings, 2002. IEEE
Print_ISBN :
0-7803-7231-X
DOI :
10.1109/AERO.2002.1035689
