Frequency Scanning Using Micro-strip Array Antenna
Micro-strip antennas are ideally suited for arrays which can be used to electroni-cally scan the radiation beam essentially needed for longer detection range and faster data rate (short reaction time). In the present study the micro strip array antenna consists of two series of array which are parallel to each other and each series consists of nineteen elements which is rect-angular in shape. Each element functions as a radiator and phase shifter. Unlike a conventional planar array, however, the elements on the array surface are spatially fed using a quarter wave transformers, which is cascade, coupled to each other. With electronic scanning it is possible to obtain practically instantaneous slewing of an antenna radiation beam to any position in the designated sector. Other features, such as scanning exhibited by the proposed antenna is 120° in azimuth as in Fig. 3 which is just, double the scanning reported by Danielson 1. The scanning rate of 0.117 deg/MHz is observed which is better than the earlier reported rate of 0.1 deg/MHz Fig. 4.
Alireza Bayat Mitra Torabipour Banadkok
Department of Communication Engg.,Imam Khomeini International University,Iran Ministry of TCI,Iran
国际会议
Progress in Electromagnetics Research Symposium 2008(2008年电磁学研究新进展学术研讨会)(PIERS 2008)
杭州
英文
1-5
2008-03-24（万方平台首次上网日期，不代表论文的发表时间）