Design and experimental analysis of asymmetric fed key-shaped eight-port flexible frequency diversity MIMO antenna with multi-band applications

IF 3.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Optical and Quantum Electronics Pub Date : 2025-01-11 DOI:10.1007/s11082-024-07990-4

Sreenivas Naik, Arun Upmanyu, Manish Sharma

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Abstract

In this communication, Key-shaped asymmetric-feedline eight-port MIMO antenna is reported which is designed on thin Rogers substrate for flexible-applications. A Key-type slotted-radiating patch printed on top-surface with slotted half-electrical ground achieves super wideband measured bandwidth of 7.50 GHz to > 80.0 GHz. The additional rectangular-strip attached to the ground which is the added feature generates narrow-band of measured-bandwidth 3.37–3.65 GHz. The single-port antenna is printed with antenna size of 14 × 14 mm2 and the narrow-band is useful for WiMAX wireless communication & n48/n77/n78 Sub-6.0 GHz 5G-bands, while super wideband applications include X-band satellite communication, Ku-band RADAR with millimetre bands integrating ISM 24.0 GHz, UWB- 24.0 GHz, 5G—mm Wave communication (n257, n258, n259, n260, n261, n262, n263). The time-domain response including impulse response and group delay shows very low ringing and vibration of 1.0 ns. The single-port, four-port and eight-port MIMO antenna is studied for bending at 45° with minimal deviation of −10 dB bandwidth. The diversity parameter ECC < 0.05 (Band 1 and Band 2), DG dB (Band 1 and Band 2), TARC < −10.0 dB (Band 1 and Band 2) and CCL < 0.2 b/s/Hz in both the bands. The maximum measured peak gain is 7.72 dBi with efficiency more than 79.69%. The acceptable radiating-pattern with overall size of 16,000 mm² is well suited for wireless-applications in multiple-bands.

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多波段非对称馈电键形八端口柔性频分集MIMO天线设计与实验分析

在这种通信中，报道了在薄罗杰斯基板上设计的键形非对称馈线八端口MIMO天线，用于灵活应用。key型开槽辐射贴片印刷在顶面，开槽半电接地实现了7.50 GHz至80.0 GHz的超宽带测量带宽。附加在地面上的矩形带是附加的特征，产生测量带宽为3.37-3.65 GHz的窄带。单端口天线打印的天线尺寸为14 × 14 mm2，窄带可用于WiMAX无线通信。n48/n77/n78 Sub-6.0 GHz 5g频段，而超宽带应用包括x波段卫星通信，ku波段雷达与毫米波段集成ISM 24.0 GHz, UWB- 24.0 GHz， 5g -毫米波通信（n257, n258, n259, n260, n261, n262, n263）。时域响应包括脉冲响应和群延迟，显示出非常低的振铃和1.0 ns的振动。研究了单端口、四端口和八端口MIMO天线在45°弯曲下的最小带宽偏差为- 10 dB。两个频段的分集参数ECC <； 0.05 (Band 1和Band 2), DG dB (Band 1和Band 2), TARC <−10.0 dB （Band 1和Band 2）和CCL <； 0.2 b/s/Hz。测量的最大峰值增益为7.72 dBi，效率大于79.69%。可接受的总尺寸为16,000 mm2的辐射模式非常适合多频段的无线应用。

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来源期刊

Optical and Quantum Electronics 工程技术-工程：电子与电气

CiteScore

4.60

自引率

20.00%

发文量

810

审稿时长

3.8 months

期刊介绍： Optical and Quantum Electronics provides an international forum for the publication of original research papers, tutorial reviews and letters in such fields as optical physics, optical engineering and optoelectronics. Special issues are published on topics of current interest. Optical and Quantum Electronics is published monthly. It is concerned with the technology and physics of optical systems, components and devices, i.e., with topics such as: optical fibres; semiconductor lasers and LEDs; light detection and imaging devices; nanophotonics; photonic integration and optoelectronic integrated circuits; silicon photonics; displays; optical communications from devices to systems; materials for photonics (e.g. semiconductors, glasses, graphene); the physics and simulation of optical devices and systems; nanotechnologies in photonics (including engineered nano-structures such as photonic crystals, sub-wavelength photonic structures, metamaterials, and plasmonics); advanced quantum and optoelectronic applications (e.g. quantum computing, memory and communications, quantum sensing and quantum dots); photonic sensors and bio-sensors; Terahertz phenomena; non-linear optics and ultrafast phenomena; green photonics.