Altunkan Hizal

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This paper proposes the configuration of a novel wideband patch antenna system suitable especially for indoor mobile communication applications. This configuration consists of an elevated patch antenna, which has different feed structure from classical patch antenna feed configurations that the antenna is fed by an inverted L-shape structure. The antenna(More)
Radar detection of targets in sea clutter modelled by compound K-distribution is examined from a statistical detection viewpoint by Monte Carlo simulations. The detection performance of Cell Averaging Constant False Alarm Rate (CA-CFAR) is compared with the performance of fixed threshold detection. The performance evaluations are quantified by CFAR loss.(More)
Radar target detection of targets in sea clutter modelled by compound K-distribution is examined from a statistical viewpoint by Monte Carlo simulations. The target detection is processed by Cell Averaging Constant False Alarm Rate (CA-CFAR) processor and the performance evaluations are quantified by CFAR loss. Curves for CFAR loss versus the spatial(More)
An active antenna array design and simulation of this design with a microwave circuit simulator are presented. This active antenna array is a TV receive only (TVRO) antenna operating at 10 GHz. It is a 8/spl times/4 array of rectangular microstrip patch antennas. Eight low noise pHEMTs are placed in the antenna. Passive antenna characteristics are usually(More)
Authors’ addresses: A. Vural, Turkish Air Force, Ankara, 06100 Turkey; O. Şengül, Prime Ministry R&D Department, Ankara, Turkey; Ş. Demir, Electrical and Electronics Engineering Department, Middle East Technical University, Ankara, 06800, Turkey, E-mail: (simsek@metu.edu.tr); A. Hgzal, Electrical and Electronics Engineering Department, Middle East Technical(More)
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