%0 Journal Article 
%A Gómez Tornero, José Luis
%A Pascual García, Juan
%A Álvarez Melcón , Alejandro
%T A novel leaky-wave antenna combining an image NRD guide and a strip circuit
%D 2005
%@ 1536-1225
%U http://hdl.handle.net/10317/666
%X This letter presents a novel leaky-wave antenna which
combines an image NRD (nonradiative dielectric) guide and a
printed strip circuit. The proposed structure allows for an easier,
cheaper and more flexible tapering mechanism than all previous
leaky-wave antennas in NRD technology. The working mechanism
is explained, and two different tapering strip-circuit topologies
are proposed. Cosine tapered illuminations are designed using a
two-dimensional leaky-mode analysis technique. Simulations with
high-frequency structure simulator (HFSS) three-dimensional
analysis are presented for validation purposes. Also, the influence
of the feeding transitions for each printed-circuit design is studied.
Results show the feasibility of one of the proposed designs, leading
to a tapered radiation pattern with sidelobes level below 20 dB.
%K Teoría de la Señal y las Comunicaciones
%K Antena de fuga de ondas
%K Antena de onda milimétrica
%K Guía NRD
%K Tecnología de circuito impreso
%K Antena cónica
%K Leaky wave antenna (LWA)
%K Millimeter wave antenna
%K NRD (nonradiative dielectric) guide
%K Printed circuit technology
%K Tapered antenna
%~ GOEDOC, SUB GOETTINGEN