In this letter, a novel fixed-frequency scanning antenna is proposed. The antenna consists of a grounded substrate-superstrate configuration covered with a two-dimensional periodic array of slots in a conducting plate, fed by a simple source (e.g., a narrow slot on the ground plane); the superstrate is a thin ferroelectric slab that, under a bias voltage, changes its permittivity allowing for a fixed-frequency electronically controlled scanning process. The operating principles of such an antenna are illustrated and numerical results are provided to show the attainable performance with actual ferroelectric materials.
A tunable ferroelectric antenna for fixed-frequency scanning applications / Lovat, Giampiero; Burghignoli, Paolo; Celozzi, Salvatore. - In: IEEE ANTENNAS AND WIRELESS PROPAGATION LETTERS. - ISSN 1536-1225. - STAMPA. - 5:1(2006), pp. 353-356. [10.1109/lawp.2006.880694]
A tunable ferroelectric antenna for fixed-frequency scanning applications
LOVAT, GIAMPIERO;BURGHIGNOLI, Paolo;CELOZZI, Salvatore
2006
Abstract
In this letter, a novel fixed-frequency scanning antenna is proposed. The antenna consists of a grounded substrate-superstrate configuration covered with a two-dimensional periodic array of slots in a conducting plate, fed by a simple source (e.g., a narrow slot on the ground plane); the superstrate is a thin ferroelectric slab that, under a bias voltage, changes its permittivity allowing for a fixed-frequency electronically controlled scanning process. The operating principles of such an antenna are illustrated and numerical results are provided to show the attainable performance with actual ferroelectric materials.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
