极端环境下碳化硅衬底片上介电谐振器天线

IF 4.8 2区 计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC
Sree Adinarayana Dasari;Seung Yoon Lee;Nima Ghalichechian
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引用次数: 0

摘要

本文介绍了一种基于碳化硅(SiC)的高效(91.5%)片上介质谐振器天线(DRA)的设计、制造和高温测量。通过测量高达400°C的回波损耗和峰值增益,以及高达300°C的辐射方向图,验证了模拟结果,这标志着本研究是第一次对基于硅基片上天线的地-地探测(GSG)的高温辐射方向图测量。我们报道了一个蓝宝石谐振器耦合到4H-SiC衬底上的插槽上,使用接地共面波导馈电,阻抗由串联stub电感匹配。DRA在28.8 GHz至30.6 GHz的宽侧辐射的基本TE111模式下工作。我们实现了边缘波纹,通过抑制表面波和波束整形来显着提高效率,从而获得更高的增益。所提出的天线在内部制造,并使用改进的探针站和机械臂进行测量。模拟的增益和峰值总效率分别为8.52 dBi和91.5%,与实测值8.47 dBi和90.5%基本一致。该天线具有稳定的反射系数和辐射方向图,高达300°C,峰值增益降低小于0.5 dBi。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
On-Chip Dielectric Resonator Antenna on Silicon Carbide Substrate for Extreme Environments
We present the design, fabrication, and high-temperature measurement of a highly efficient (91.5%) on-chip dielectric resonator antenna (DRA) on silicon carbide (SiC). The simulations were validated through measurements of return loss and peak gain up to 400 °C, along with radiation pattern measurements up to 300 °C, marking this study as the first high-temperature radiation pattern measurement of a ground-signal-ground (GSG) probed SiC-based on-chip antenna. We report a sapphire resonator coupled to a slot on a 4H-SiC substrate, fed using a grounded coplanar waveguide, and impedance matched by a series stub inductor. The DRA operates in the fundamental TE111 mode for broadside radiation at 28.8 GHz to 30.6 GHz. We implement edge corrugations, significantly enhancing efficiency by suppressing surface waves and beam shaping to achieve a higher gain. The proposed antenna was fabricated in-house and measured using a modified probe station and a robot arm. The simulated gain and peak total efficiency of 8.52 dBi and 91.5%, respectively, agree with the measured values of 8.47 dBi and 90.5%. The antenna is demonstrated to have a stable reflection coefficient and radiation pattern up to 300 °C with less than 0.5 dBi reduction in peak gain.
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来源期刊
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.
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