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Problems of wideband waveguide-slot antennas design
Proceedings of the 19th Int. Crimean Conference "Microwave & Telecommunication Technology" (CriMiCo?2009). 14-18 September, Sevastopol, Crimea, Ukraine, pp.435-436 (2009) (in Russian)

S.S. Sekretarov and D.M. Vavriv

Physical limits of the operational frequency band of slotted waveguide antennas are studied. It is shown that by using both conventional longitudinal slots and subarraying techniques it is possible to reach the relative bandwidth of about 15%. These results are illustrated by the development of genuine slotted waveguide antenna that operates in the X-band and forms the beam of 4°?6° with the gain of about 30 dB.