Novel high-gain narrowband antenna based on ENZ SIW structure and shorting pin

IF 1.2 4区工程技术 Q4 COMPUTER SCIENCE, HARDWARE & ARCHITECTURE Analog Integrated Circuits and Signal Processing Pub Date : 2024-02-26 DOI:10.1007/s10470-024-02267-y

Rajesh Kumar Dash, Sadhana Kumari, Balamati Choudhury

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Abstract

This paper provides an idea for designing a high-gain narrow-band substrate integrated waveguide (SIW) antenna. The high gain is achieved due to the epsilon-near-zero (ENZ) technique, and narrow-band performance is achieved due to impedance matching provided by a pair of symmetric shorting pins. In this paper, SIW is used near its cut-off frequency to realize the ENZ characteristics. Further, two symmetric open stubs are incorporated to reject the out out-of-band frequency signal. To attain narrow-band performance, pair of symmetric shorting pins are employed in place of the conventional way, i.e., tapered line transition to couple the energy from microstrip to SIW. To validate the proposed concept, a high-gain narrow-band SIW antenna has been designed for a frequency band on a 0.79 mm thick RT- DUROID 5880 substrate. Within the 7.77–8.07 GHz band, the proposed antenna radiates with gain and radiation efficiency of 6.51 dBi and 96%, respectively. The measured and simulated results are found to be consistent. The overall size of the proposed antenna is 28 X 22 mm².

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基于 ENZ SIW 结构和短路引脚的新型高增益窄带天线

摘要本文提供了一种设计高增益窄带基底集成波导（SIW）天线的思路。高增益是通过ε-近零（ENZ）技术实现的，而窄带性能则是通过一对对称短路引脚提供的阻抗匹配实现的。本文使用接近其截止频率的 SIW 来实现 ENZ 特性。此外，还采用了两个对称开放式存根来抑制带外频率信号。为了实现窄带性能，采用了一对对称短路引脚来替代传统方式，即锥形线过渡，将能量从微带耦合到 SIW。为了验证所提出的概念，我们在 0.79 毫米厚的 RT- DUROID 5880 基板上设计了一个高增益窄带 SIW 天线。在 7.77-8.07 GHz 频段内，该天线的辐射增益和辐射效率分别为 6.51 dBi 和 96%。测量和模拟结果一致。拟议天线的整体尺寸为 28 X 22 mm2。

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来源期刊

Analog Integrated Circuits and Signal Processing 工程技术-工程：电子与电气

CiteScore

0.30

自引率

7.10%

发文量

141

审稿时长

7.3 months

期刊介绍： Analog Integrated Circuits and Signal Processing is an archival peer reviewed journal dedicated to the design and application of analog, radio frequency (RF), and mixed signal integrated circuits (ICs) as well as signal processing circuits and systems. It features both new research results and tutorial views and reflects the large volume of cutting-edge research activity in the worldwide field today. A partial list of topics includes analog and mixed signal interface circuits and systems; analog and RFIC design; data converters; active-RC, switched-capacitor, and continuous-time integrated filters; mixed analog/digital VLSI systems; wireless radio transceivers; clock and data recovery circuits; and high speed optoelectronic circuits and systems.