TY - JOUR 
A1 - Poveda García, Miguel
AU - Cañete Rebenaque, David
AU - Goussetis, George
AU - Gómez Tornero, José Luis
T1 - Coupling substrate-integrated waveguides to increase the gain bandwidth of Leaky-wave antennas
Y1 - 2018
SN - 0018-9480
UR - http://hdl.handle.net/10317/9717
AB - A novel technique to increase the pattern bandwidth of substrate-integrated waveguide leaky-wave antennas (SIW LWAs) is proposed. By coupling several SIWs, it is shown that the gain at the desired angle can be kept stable across a wide-frequency band. A systematic design methodology based on a simple transverse equivalent network is presented. Practical coupled-SIW designs with gain exceeding 10 dB and pointing at 30° in the 15-GHz band are reported to validate the theory. Simulation and experimental results demonstrate an enhancement of the half-power gain bandwidth from 2.5% (380 MHz) in the single-SIW design to 9% (1360 MHz) for an LWA composed of three coupled SIWs. IEEE.
KW - Broadband  antennas
KW - Frequency  beam  squint
KW - Leaky-wave antennas
KW - Substrate integrated waveguide
KW - Teoría de la Señal y las Comunicaciones
KW - 3307.01 Antenas
LA - eng
PB - IEEE
ER -