Single-Feed Beam-Steering of Short Pulses via Time Reversal

Autor:	Victor M. Mendez, Walter S. Wall, Rachel Liao, Sun K. Hong
Rok vydání:	2014
Předmět:	Beamforming Engineering Aperture business.industry Antenna radiation patterns Beam steering Process (computing) Pulse (physics) Optics Steering angle Radiator (engine cooling) Physics::Accelerator Physics Electrical and Electronic Engineering business Computer Science::Information Theory
Zdroj:	IEEE Antennas and Wireless Propagation Letters. 13:794-797
ISSN:	1548-5757 1536-1225
DOI:	10.1109/lawp.2014.2318673
Popis:	In this letter, we present a new approach to beam-steering of short, ultrawideband (UWB) pulses using a single-feed radiating structure. Utilizing a radiator consisting of small apertures backed by a reverberating cavity, a time-reversal technique is applied to generate a short pulse at each aperture with the corresponding time delay for beamforming at a desired steering angle. In the process, we also employ a novel method to improve beamforming performance. This approach offers significantly simpler beamforming and steering of short pulses compared to conventional methods, which typically require a complex multifeed structure. Moreover, beam-steering of high-power short pulses is achievable using this approach with a suitable choice of feed.
Databáze:	OpenAIRE
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