Pulse Shape Optimization in Time-Modulated Arrays for Sideband Radiation Suppression

被引：0
|
作者：
Poli, Lorenzo [1 ]
Bekele, Ephrem T. [1 ]
D'Urso, Michele [2 ]
Rocca, Paolo [1 ]
Massa, Andrea [1 ]
机构：
[1] Univ Trento, ELEDIA Res Ctr DISI, Trento, Italy
[2] Selex ES, Giugliano Res Innovat Team, Naples, Italy
来源：
2014 8TH EUROPEAN CONFERENCE ON ANTENNAS AND PROPAGATION (EUCAP) | 2014年
关键词：
antenna arrays; time-modulated linear arrays; pulse shaping; sideband radiation; Particle Swarm Optimization; LINEAR ARRAYS; DIFFERENCE PATTERNS; UNIFORM AMPLITUDE; PLANAR ARRAYS; DESIGN; SUM;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In time-modulated arrays, the signal transmitted or received by the array elements is multiplied by means of a train of periodic pulses which allow to obtain an angularly selective radiation pattern at the antenna working frequency. Generally, a set of radio-frequency switches is used for the pulse generation and it is assumed that ideal rectangular waveforms are obtained. In this work, pulse waveforms having non-instantaneous on-off transitions are taken into account and their shapes are optimized by means of a stochastic global algorithm in order to reduce the losses in the sidebands caused by the time modulation process.
引用
收藏
页码：363 / 366
页数：4
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