一种采用十字环和方环元件的高效双频发射阵列天线

IF 0.6 4区计算机科学 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Applied Computational Electromagnetics Society Journal Pub Date : 2021-01-01 DOI:10.47037/2021.aces.j.360705

Yongliang Zhang, Xiuzhu Lv, Jiaxuan Han, Shuai Bao, Y. Cai, Zhao Wu

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引用次数: 0

摘要

本文提出了一种X波段和Ku波段的高效双频发射阵天线。双频发射阵列设计用于Ku波段卫星通信的下行/上行频率。透射阵列元件由四个金属贴片和两个介电基板组成。金属贴片印在基板的两侧。通过优化参数，传输阵列元件可以实现大于360°的传输相位覆盖，并在两个频段独立工作。然后，提出了一种选择单元尺寸的方法，使阵列中的所有单元尽可能地实现两个频率的传输相位。制作并测量了201元发射阵列天线，该天线的频带比为1.13。在11.5 GHz时测得的最大增益为22.4 dB，对应的孔径效率为52.7%。在13 GHz时测得的最大增益为24.2 dB，对应的孔径效率为62.4%。1 db增益带宽在X频段为9.7% (10.8-11.9 GHz)，在Ku频段为9% (12.6-13.8 GHz)。

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A Highly Efficient Dual-Band Transmitarray Antenna Using Cross and Square Rings Elements

In this paper, a highly efficient dual-band transmitarray antenna using cross and square rings elements is presented for X and Ku bands. The dual-band transmitarray is designed for downlink/uplink frequencies of Ku band satellite communications. The transmitarray element consists of four metal patches and two dielectric substrates. The metal patch is printed on both sides of the substrate. By optimizing the parameters, the transmitarray element can achieve a transmission phase coverage greater than 360° and work independently in both frequency bands. Then, a method to select the size of the element is proposed, so that all the elements in the array can realize the transmission phase of the two frequencies as much as possible. A 201-elements transmitarray antenna is fabricated and measured and the band ratio of the antenna is 1.13. The measured maximum gain at 11.5 GHz is 22.4 dB, corresponding to the aperture efficiency is 52.7%. The measured maximum gain at 13 GHz is 24.2 dB, corresponding to the aperture efficiency is 62.4%. The 1-dB gain bandwidths are 9.7% (10.8-11.9 GHz) at X band and 9% (12.6-13.8 GHz) at Ku band.

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来源期刊

Applied Computational Electromagnetics Society Journal 工程技术-电信学

CiteScore

1.60

自引率

28.60%

发文量

审稿时长

9 months

期刊介绍： The ACES Journal is devoted to the exchange of information in computational electromagnetics, to the advancement of the state of the art, and to the promotion of related technical activities. A primary objective of the information exchange is the elimination of the need to "re-invent the wheel" to solve a previously solved computational problem in electrical engineering, physics, or related fields of study. The ACES Journal welcomes original, previously unpublished papers, relating to applied computational electromagnetics. All papers are refereed. A unique feature of ACES Journal is the publication of unsuccessful efforts in applied computational electromagnetics. Publication of such material provides a means to discuss problem areas in electromagnetic modeling. Manuscripts representing an unsuccessful application or negative result in computational electromagnetics is considered for publication only if a reasonable expectation of success (and a reasonable effort) are reflected. The technical activities promoted by this publication include code validation, performance analysis, and input/output standardization; code or technique optimization and error minimization; innovations in solution technique or in data input/output; identification of new applications for electromagnetics modeling codes and techniques; integration of computational electromagnetics techniques with new computer architectures; and correlation of computational parameters with physical mechanisms.