A corrugated and lens based miniaturized antipodal Vivaldi antenna for 28 GHz and 38 GHz bands applications

IF 0.8 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC Frequenz Pub Date : 2023-02-20 DOI:10.1515/freq-2022-0199

Amruta S. Dixit, Sumit Kumar, M. Abegaonkar

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Abstract

Abstract The paper presents a dualband and compact antipodal Vivaldi antenna (AVA) array by using a dielectric lens (DL) and corrugations for 5G applications. The proposed novel antenna provides very high efficiency and it alleviates beam titling very effectively. Its efficiency is in the range of 95.93%–97.52% whereas the H plane beam titling is ± 1 ° $\pm 1{}^{\circ}$ over most of the frequency range. The antenna frequency response is improved by incorporating corrugations which results in the antenna miniaturization. The designed AVA array size is 2.86 × 3.58 × 0.06 λ g 3 ${{\lambda }_{g}}^{3}$ (for lower guided frequency). The proposed dualband antenna operates from 24.17 GHz to 29.37 GHz and 30.76 GHz to 40.58 GHz. These frequency bands cover 28 GHz and 38 GHz bands of 5G communications. Next, the front-to-back ratio is improved significantly which further results in the gain enhancement. Also, the grooves in the feeding network minimize reverse power reflections. The radiation pattern is stable and it shows that the designed antenna is a directional antenna. The antenna is designed, simulated, and tested by using a network analyzer and anechoic chamber. The testing and simulated results indicate that the proposed AVA array is the best candidate to integrate it in 5G devices.

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一种用于28 GHz和38 GHz频带应用的波纹和透镜微型对足维瓦尔第天线

摘要本文提出了一种用于5G应用的双波段紧凑型对足维瓦尔第天线（AVA）阵列，该阵列采用介质透镜（DL）和波纹。所提出的新型天线提供了非常高的效率，并且非常有效地减轻了波束倾斜。其效率在95.93%–97.52%的范围内，而H平面光束倾斜在大多数频率范围内为±1°$\pm 1｛｝^｛\circ｝$。天线频率响应通过结合导致天线小型化的波纹而得到改善。设计的AVA阵列大小为2.86×3.58×0.06λ。所提出的双频段天线的工作频率为24.17 GHz至29.37 GHz和30.76 GHz至40.58 GHz。这些频带覆盖5G通信的28 GHz和38 GHz频带。接下来，前后比显著提高，这进一步导致增益增强。此外，馈电网络中的凹槽使反向功率反射最小化。辐射方向图稳定，表明所设计的天线为定向天线。利用网络分析仪和消声室对天线进行了设计、仿真和测试。测试和仿真结果表明，所提出的AVA阵列是将其集成到5G设备中的最佳候选阵列。

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来源期刊

Frequenz 工程技术-工程：电子与电气

CiteScore

2.40

自引率

18.20%

发文量

审稿时长

3 months

期刊介绍： Frequenz is one of the leading scientific and technological journals covering all aspects of RF-, Microwave-, and THz-Engineering. It is a peer-reviewed, bi-monthly published journal. Frequenz was first published in 1947 with a circulation of 7000 copies, focusing on telecommunications. Today, the major objective of Frequenz is to highlight current research activities and development efforts in RF-, Microwave-, and THz-Engineering throughout a wide frequency spectrum ranging from radio via microwave up to THz frequencies. RF-, Microwave-, and THz-Engineering is a very active area of Research & Development as well as of Applications in a wide variety of fields. It has been the key to enabling technologies responsible for phenomenal growth of satellite broadcasting, wireless communications, satellite and terrestrial mobile communications and navigation, high-speed THz communication systems. It will open up new technologies in communications, radar, remote sensing and imaging, in identification and localization as well as in sensors, e.g. for wireless industrial process and environmental monitoring as well as for biomedical sensing.