Pattern synthesis in time-modulated linear arrays through pulse shifting
نویسندگان
چکیده
منابع مشابه
Pattern Synthesis in Time-modulated Linear Arrays through Pulse Shifting
In this paper, an innovative approach for the synthesis of time-modulated linear array antennas is presented. The switch-on instants of the time-modulated elements are taken into account as additional degrees of freedom to optimize the array pattern. Towards this end, a technique based on a Particle Swarm Optimization is proposed to fully exploit the dependence of the sideband radiations on the...
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In time-modulated antenna arrays (TMAAs), as a result of periodical switch-on and switchoff of the antenna elements, including operating frequency (termed as center frequency) signal, sideband signals are appeared at either sides of the center frequency in integer multiples of the modulation frequency. In this paper, it is shown that without using phase shifters, just by suitably controlling th...
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ژورنال
عنوان ژورنال: IET Microwaves, Antennas & Propagation
سال: 2010
ISSN: 1751-8725
DOI: 10.1049/iet-map.2009.0042