Title :
Two-Dimensional Luneburg Lens RCS Augmentation using MMIC Reflection Amplifier
Author :
Xue, Liang ; Cantu, Horacio I. ; Fusco, Vincent F.
Author_Institution :
Queen´´s Univ. of Belfast, Belfast
Abstract :
A 2D planar Luneburg lens cooperating with a MMIC reflection amplifier for radar cross-section (RCS) enhancement is reported. The lens will operate in TEM mode in K band. A K band MMIC reflection amplifier when attached with lens feed, produces an additional measured reflection gain of 10 dB at 19.6 GHz, above that which can be obtained from an equivalent passive Luneburg lens reflector. Additionally this system demonstrates that the reflected signal can be amplitude modulated through the amplifier bias variation. This new system shows that the reflection amplifier terminated Luneburg lens reflector can act as a simple means for realising active RCS augmentation.
Keywords :
MMIC amplifiers; lenses; radar cross-sections; transmission electron microscopy; 2D planar Luneburg lens; K band; MMIC reflection amplifier; TEM mode; amplifier bias variation; passive Luneburg lens reflector; radar cross-section; reflection gain; Antenna radiation patterns; Antennas and propagation; Apertures; Feeds; Gain measurement; Horn antennas; Integrated circuit interconnections; Lenses; MMICs; Optical reflection;
Conference_Titel :
Antennas and Propagation Conference, 2007. LAPC 2007. Loughborough
Conference_Location :
Loughborough
Print_ISBN :
1-4244-0776-1
Electronic_ISBN :
1-4244-0776-1
DOI :
10.1109/LAPC.2007.367436
