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Journal of applied research and technology

versión On-line ISSN 2448-6736versión impresa ISSN 1665-6423

J. appl. res. technol vol.10 no.1 Ciudad de México feb. 2012

 

Design of Beam–Forming Networks for Multibeam Antenna Arrays Using Coherently Radiating Periodic Structures

 

A. Arce*1, D.H. Covarrubias2, M.A. Panduro3 , L.A. Garza4

 

1,2 Electronics and Telecommunications Department, CICESE Research Centre Carretera Ensenada–Tijuana 3918, 22860 Ensenada, Baja California, Mexico * arce@cicese.edu.mx

3,4 Unidad Académica Multidisciplinaria Reynosa–Rhode, Universidad Autónoma de Tamaulipas Carretera Reynosa–San Fernando, 88779 Reynosa, Tamaulipas, Mexico.

 

ABSTRACT

The design of a beam–forming network (BFN) for a multibeam–steerable antenna array using Coherently Radiating Periodic Structures (CORPS) is presented. In this design, the input ports of the feeding network are optimized using the particle swarm optimization (PSO) algorithm. A two–beam design configuration of CORPS–BFN for a multibeam–steerable linear array is proposed and analyzed. The results shown in this paper present certain interesting characteristics in the array factor response, in terms of sidelobe level (SLL) and directivity (D), for the scannable multibeam linear array and the feeding network simplification for the design of BFN based on CORPS.

Keywords: CORPS beamforming network, scannable multibeam antenna array, array factor.

 

RESUMEN

En este artículo se presenta el diseño de una Red de Conformación de Haz (BFN) para un arreglo de antenas de haces múltiples y electrónicamente dirigibles utilizando Estructuras Periódicas de Radiación Coherente (CORPS). En este diseño las entradas complejas de la red de alimentación se consideran como variables de optimización empleando el algoritmo de optimización de enjambre de partículas (PSO). En este caso, se propone una configuración de diseño de dos haces de una CORPS–BFN para un arreglo lineal de haces múltiples electrónicamente dirigibles para su análisis. Los resultados presentados en este artículo ilustran ciertas características interesantes en la respuesta del factor de arreglo, en términos del nivel de lóbulos laterales (SLL) y la directividad (D), así como en la simplificación de la red de alimentación para el diseño de redes de conformación de haz basadas en CORPS.

 

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Acknowledgements

This work was supported by the Mexican National Science and Technology Council, CONACyT, under grant 127919 and the Science and Technology Council of Tamaulipas Mexico COTACyT under grant 108166.

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