Optimal pattern synthesis of circular antenna arrays with improved effective aperture and beam area

IF 1.4 4区 计算机科学 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC
Satish Kumar, Gopi Ram, Durbadal Mandal, Rajib Kar
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引用次数: 0

Abstract

Circular antenna array (CAA) is one of the most widely used antenna array designs. This paper addresses the design challenges of the CAA with the non-uniform single ring, which is placed in an X-Y plane with the best sidelobe level (SLL) and improved first null beamwidth (FNBW). It has been solved using differential evolution, craziness-based particle swarm optimization (CRPSO), and novel particle swarm optimization (NPSO) techniques. An optimal combination of feeding current and inter-element spacing provides an array pattern with the best SLL and improved FNBW, as well as some other parameter calculations of the antenna array like maximum directivity, maximum effective aperture, total effective aperture, maximum beam area, total beam area, circumference, and radius of the CAAs using these techniques. There are six designs of CAAs with different antenna elements (i.e., 10-, 12-, 16-, 20-, 36-, and 64-elements) which have been taken into account. Simulations are done in MATLAB. Based on various simulation results, we can analyze the performance of SLL and FNBW with other parameters using NPSO and compare them with different techniques of CAAs, as shown in the numerical analysis and simulation result section.
改进有效孔径和波束面积的圆形天线阵列的最佳模式合成
圆形天线阵(CAA)是应用最广泛的天线阵设计之一。本文探讨了带有非均匀单环的 CAA 的设计难题,该单环放置在 X-Y 平面上,具有最佳侧叶水平(SLL)和改进的第一空波束宽度(FNBW)。该方案采用微分进化、基于疯狂粒子群优化(CRPSO)和新型粒子群优化(NPSO)技术进行求解。利用这些技术,馈电电流和元件间距的最佳组合可提供具有最佳 SLL 和改进 FNBW 的阵列模式,以及天线阵的其他一些参数计算,如 CAA 的最大指向性、最大有效孔径、总有效孔径、最大波束面积、总波束面积、周长和半径。CAA 有六种不同的天线元件设计(即 10、12、16、20、36 和 64 个元件)。仿真在 MATLAB 中完成。根据各种仿真结果,我们可以利用 NPSO 分析 SLL 和 FNBW 与其他参数的性能,并与 CAA 的不同技术进行比较,如数值分析和仿真结果部分所示。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
International Journal of Microwave and Wireless Technologies
International Journal of Microwave and Wireless Technologies ENGINEERING, ELECTRICAL & ELECTRONIC-TELECOMMUNICATIONS
CiteScore
3.50
自引率
7.10%
发文量
130
审稿时长
6-12 weeks
期刊介绍: The prime objective of the International Journal of Microwave and Wireless Technologies is to enhance the communication between microwave engineers throughout the world. It is therefore interdisciplinary and application oriented, providing a platform for the microwave industry. Coverage includes: applied electromagnetic field theory (antennas, transmission lines and waveguides), components (passive structures and semiconductor device technologies), analogue and mixed-signal circuits, systems, optical-microwave interactions, electromagnetic compatibility, industrial applications, biological effects and medical applications.
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