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A wideband slotted waveguide antenna for SAR systems

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2 Author(s)
S. S. Sekretarov ; Microwave Electronics Department, Institute of Radio Astronomy of the National Academy of Sciences of Ukraine, 4, Chervonopraporna Str., 61002 Kharkov, Ukraine ; D. M. Vavriv

Possibilities for the extension 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%. This result is illustrated by the development of a novel slotted waveguide antenna for high-resolution SAR applications. The antenna operates in the X-band and forms the beam of 4°×6° with the gain of about 30 dB.

Published in:

Microwave Conference, 2009. EuMC 2009. European

Date of Conference:

Sept. 29 2009-Oct. 1 2009