A New Series Parallel Microstrip Array Antenna

A New Series Parallel Microstrip Array Antenna
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新型系列并行微带阵列天线

DOI：
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
Torabipore Mitra
Torabipore Mitra
中科院分区：
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文献类型：
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作者：
B. R. Vishvakarma;Arif Ahmed Al;Torabipore Mitra

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提出了一种用于波束扫描的串并联阵列天线.对于一个由9个级联单元组成的串联馈电阵列，观察到了相对于宽边方向的62°波束扫描（从-12°到+50°）。具有19个级联耦合元件的另一天线示出了± 60°的波束扫描，其中对于± 515 MHz的扫描间隔，3 dB波束宽度小于15度。这个天线所展示的扫描只是早期工作人员（Danielsen）报告的扫描的两倍。扫描速率为0.117deg/MHz。扫描被发现是均匀和连续的频率。已经发现，一般而言，扫描范围、扫描速率和辐射功率随着阵列中元件数量的增加而提高。
A new series parallel array antenna is developed for beam scanning. A 62° beam scanning (from -12° to +50°) with respect to broadside direction is observed for a proposed series fed arrays each with nine cascade-coupled elements. Another antenna with 19 cascade-coupled elements has shown a beam scanning of ± 60° with a 3 dB beam-width less than 15 degree for a sweep interval of ± 515 MHz. The scanning exhibited by this antenna is just double the scanning reported by earlier worker (Danielsen). The scanning rate of 0.117 deg/MHz is observed. The scanning is found to be uniform and continuous with frequency. It has been found that in general the scanning range, scanning rate, and radiated power improve with increasing number of elements in the array.