An original architecture based on composite configurations of printed-circuit hybrid rings is developed for flexible signal-processing functionalities in advanced monopulse radar applications. The modularity of the proposed topology, together with proper design choices, strongly simplifies the structure of the beam forming network, reducing the relevant ohmic losses, and consequently improving the antenna gain. The circuit also allows us to manage only two radio frequency channels (instead of the conventional three), combining the delta- and omnidirectional channel functions. The principles of the structure are presented, and a specific layout is designed. Stripline prototypes are fabricated and tested for L-band applications. The compared results of simulations and measurements fully confirm the interesting performance of this device. The versatility of the architecture is illustrated further considering alternative circuit implementations. (c) 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:16631670, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27647
Versatile and efficient hybrid-ring architecture for advanced radar functionalities / Marco, Zucca; Matteo, Ciattaglia; Roberto, Pintauro; Guido, Valerio; Galli, Alessandro. - In: MICROWAVE AND OPTICAL TECHNOLOGY LETTERS. - ISSN 0895-2477. - STAMPA. - 55:7(2013), pp. 1663-1670. [10.1002/mop.27647]
Versatile and efficient hybrid-ring architecture for advanced radar functionalities
GALLI, Alessandro
2013
Abstract
An original architecture based on composite configurations of printed-circuit hybrid rings is developed for flexible signal-processing functionalities in advanced monopulse radar applications. The modularity of the proposed topology, together with proper design choices, strongly simplifies the structure of the beam forming network, reducing the relevant ohmic losses, and consequently improving the antenna gain. The circuit also allows us to manage only two radio frequency channels (instead of the conventional three), combining the delta- and omnidirectional channel functions. The principles of the structure are presented, and a specific layout is designed. Stripline prototypes are fabricated and tested for L-band applications. The compared results of simulations and measurements fully confirm the interesting performance of this device. The versatility of the architecture is illustrated further considering alternative circuit implementations. (c) 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:16631670, 2013; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.27647I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.