Recent Patents on Engineering, Vol 10, No 2 (2016)

Font Size:  Small  Medium  Large

ACTIVE VIVALDI ANTENNA TIMED-ARRAY FOR ULTRA-WIDEBAND 3D BEAMFORMING

Dr. Jorge Rodolfo Beingolea, Alexandre M. de Oliveira, Jair P. de Souza, Adriano M. da Silva, Marcelo B. Perotoni, Wesley Becari, João F. Justo

Abstract


This paper presents a three-dimensional antenna array for electronic high-resolution beam spatial scanning. The system consists of five identical elements, arranged in a cross shape (3+3), where each element is formed by a Vivaldi planar antenna equipped with a Ultra Wide Band (UWB) pulse generator (PG), connected to a programmable delay circuit (PDC). The Vivaldi antennas were designed with copper and a Roger (RO3203) substrate, while the PG and PDC were designed using the 0.18μm CMOS Standard process. The project was designed in an integrated simulation environment (electric + electromagnetic), combining LTSpice 4, MicroWind 3.5 and CST MW Studio 2011 design tools. Monte Carlo simulations showed fully consistent results with those of theoretical models. The main lobe has a gain of 13dB, 28º × 27º angular width, a beam steering between 31º and -24º for θ, and between 29º and -29º for the φ angles at 6.2GHz of center frequency.

Refbacks

  • There are currently no refbacks.