Japanski projekt istraživanja i razvoja aktivnih faznih antenskih nizova za praktične primjene

This paper presents Japan’s enterprising project to develop the active phased array antenna (APAA) for practical applications. The objectives are to realize the cost reduction, small volume and light weight of APAAs at K-band frequency. The key technologies for those purposes are partial drive of an array, Monolithic Microwave Integrated Circuits (MMIC), a phase shifter with Radio Frequency-Micro Electro Mechanical System (RF-MEMS) switch and relevant control circuits, and system integration of all devices. The structure and the research and development (R&D) schedule of the project are explained. The results of R&D activities so far are also described.U radu je prikazan japanski istraživački projekt razvoja aktivnih faznih antenskih nizova (APAA) za praktične primjene. Cilj projekta je realizacija APAA malog volumena, male težine i reducirane cijene u K-frekvencijskom području. Ključna tehnološka rješenja su parcijalna pobuda antenskog niza, monolitni mikrovalni integrirani krugovi (MMIC), fazni zakretači s mikro elektromehaničkim prekidačem u radiofrekvencijskom području (RF-MEMS) i pripadajući pobudni sklopovi, kao i integracija svih komponenata u sustav. U radu je objašnjena struktura i vremenski plan istraživanja i razvoja (R&D). Opisani su takoder do sada postignuti rezultati R&D

Design of Broadbeam Antenna using a Shorted-End Curved Strip Dipole on Conducting Plane

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The design of UHF tags even on metallic or liquid objects

ได้รับทุนอุดหนุนการวิจัยจากมหาวิทยาลัยเทคโนโลยีสุรนาร