Design of Transmitting-Type Dual-Frequency Beam Steering Surfaces With Flexible Frequency Ratio

IF 3.7 2区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Antennas and Wireless Propagation Letters Pub Date : 2025-01-13 DOI:10.1109/LAWP.2025.3529041

De Yin;Lei Zhu;Wanping Zhang;Bo Li

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引用次数: 0

Abstract

Conventional dual-frequency beam steering surface (DF-BSS) can only adjust frequency ratio (FR) in a narrow range, and this letter presents a novel design concept for transmitting-type DF-BSS to broaden it. To reach this target, by utilizing two methods (choosing different resonant modes of the patch and adjusting the positions of loaded pins), the FR can be adjusted from 1.49 to 3.50. Based on mode excitation and inhibition theory, by placing the equivalent feeding ports at proper positions, the higher frequency (

$f_{H}$

) and the lower frequency (

$f_{L}$

) can work separately. To verify our design concept, two DF-BSS cases (Case Ⅰ:

$f_{H}$

= 11.1 GHz,

$f_{L}$

= 7.43 GHz, FR = 1.49; Case Ⅱ:

$f_{H}$

= 16.8 GHz,

$f_{L}$

= 4.8 GHz, FR = 3.5) with different beam steering angles are fabricated and measured. The bandwidths of the two cases both exceed 1.4%. The good agreements between measured results and expectations show the great potential of the proposed DF-BSS in rebuilding the propagating paths for electromagnetic waves.

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具有柔性频率比的发射型双频波束转向面设计

传统的双频波束转向面（DF-BSS）只能在狭窄的范围内调节频率比（FR），本文提出了一种新颖的发射型DF-BSS设计理念，以拓宽其范围。为了达到这一目标，采用两种方法（选择贴片的不同谐振模式和调整加载引脚的位置），可以将FR从1.49调整到3.50。基于模态激励与抑制理论，通过在适当位置放置等效进给口，可以使高频（$f_{H}$）和低频（$f_{L}$）分别工作。为了验证我们的设计理念，我们设计了两个DF-BSS案例(案例Ⅰ：$f_{H}$ = 11.1 GHz, $f_{L}$ = 7.43 GHz, FR = 1.49；制造并测量了不同波束转向角的情况Ⅱ：$f_{H}$ = 16.8 GHz, $f_{L}$ = 4.8 GHz, FR = 3.5)。这两种情况的带宽都超过1.4%。实测结果与预期结果吻合较好，表明所提出的DF-BSS在重建电磁波传播路径方面具有很大的潜力。

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

IEEE Antennas and Wireless Propagation Letters 工程技术-电信学

CiteScore

8.00

自引率

9.50%

发文量

529

审稿时长

1.0 months

期刊介绍： IEEE Antennas and Wireless Propagation Letters (AWP Letters) is devoted to the rapid electronic publication of short manuscripts in the technical areas of Antennas and Wireless Propagation. These are areas of competence for the IEEE Antennas and Propagation Society (AP-S). AWPL aims to be one of the "fastest" journals among IEEE publications. This means that for papers that are eventually accepted, it is intended that an author may expect his or her paper to appear in IEEE Xplore, on average, around two months after submission.