Design of UWB MIMO Antenna to Reduce the Mutual Coupling Using Defected Ground Structure

Babu, K. Vasu; Anuradha, B.

doi:10.1007/s11277-021-08189-6

Cited by 38 publications

(19 citation statements)

References 19 publications

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“… The proposed antenna achieves diversity by using 3-D orientations, whereas 2-D orientations were used in 7 , 14 , 20 , 33 – 48 , 50 – 53 , 57 – 59 . Unlike the antenna structures reported in 14 , 20 , 34 , 36 – 48 , 50 – 59 , the proposed MIMO antenna configuration occupies less area while having a larger number of resonating elements. The antennas in 7 , 33 , 35 , 47 occupied an equivalent/smaller area but had fewer elements.…”

Section: Antenna Housing Effectsmentioning

confidence: 98%

“… Refs. Size in single plane ( λ 0 × λ 0 ) Substrate/Thickness (mm) Number of elements Bandwidth (GHz) CCL (bits/s/Hz) Polarization 7 0.19 × 0.31 FR-4/0.8 2 3.1–10.6 < 0.4 Single 14 2.1 × 2.2 FR-4/1.6 4 0.76–1.02, 3.01–12.5 – Dual 33 0.25 × 0.322 FR-4/1.5748 2 2.1–1.4 – Single 34 0.4 × 0.2 FR-4/1.6 2 3–11 – Single 35 0.25 × 0.366 FR-4/1.6 2 2.5–12 – Single 36 0.4 × 0.233 FR-4/1.6 2 2–10 – Single 37 0.93 × 0.93 FR-4/1.6 4 2.4–2.5, 5.1–5.9 – Single 38 0.47 × 0....…”

Section: Antenna Housing Effectsmentioning

confidence: 99%

“…3. Unlike the antenna structures reported in 14,20,34,[36][37][38][39][40][41][42][43][44][45][46][47][48][50][51][52][53][54][55][56][57][58][59] , the proposed MIMO antenna configuration occupies less area while having a larger number of resonating elements. The antennas in 7,33,35,47 occupied an equivalent/ smaller area but had fewer elements.…”

Section: Antenna Housing Effectsmentioning

confidence: 99%

“…4. The proposed MIMO antenna outperforms in terms of ECC, DG, MEG, TARC, and CCL, whereas all of these diversity factors were not investigated in the majority of reported papers 14,20,[33][34][35][36][37][38]40,41,[43][44][45]47,49,[51][52][53][54][55]58,59 . 5.…”

Section: Antenna Housing Effectsmentioning

confidence: 99%

See 3 more Smart Citations

3-D twelve-port multi-service diversity antenna for automotive communications

Kannappan

Palaniswamy

Kanagasabai

et al. 2022

Sci Rep

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This paper presents a twelve-port ultra-wideband multiple-input-multiple-output (MIMO)/diversity antenna integrated with GSM and Bluetooth bands. The twelve-port antenna is constructed by arranging four elements in the horizontal plane and eight elements in the vertical plane. The antenna element, which is created using a simple rectangular monopole, exhibits a frequency range of 3.1 to 12 GHz. The additional Bluetooth and GSM bands are achieved by introducing stubs into the ground plane. The size of the MIMO antenna is 100 × 100 mm2. The antenna offers polarization diversity, with vertical and horizontal polarization in each plane. The diversity antenna has a bandwidth of 1.7–1.9 GHz, 2.35–2.55 GHz, and 3–12 GHz, the radiation efficiency of 90%, and peak gain of 2.19 dBi. The proposed antenna offers an envelope correlation coefficient of < 0.12, apparent diversity gain of > 9.9 dB, effective diversity gain of > 8.9 dB, mean effective gain of < 1 dB, and channel capacity loss of < 0.35 bits/s/Hz. Also, the MIMO antenna is tested for housing effects in order to determine its suitability for automotive applications.

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Section: Antenna Housing Effectsmentioning

confidence: 98%

Section: Antenna Housing Effectsmentioning

confidence: 99%

Section: Antenna Housing Effectsmentioning

confidence: 99%

Section: Antenna Housing Effectsmentioning

confidence: 99%

See 2 more Smart Citations

3-D twelve-port multi-service diversity antenna for automotive communications

Kannappan

Palaniswamy

Kanagasabai

et al. 2022

Sci Rep

View full text Add to dashboard Cite

show abstract

“…UWB combined with MIMO increases channel capacity, improves reliability, lowers multipath fading, and achieves diversity performance 3 . The microstrip technology has gained popularity for UWB‐MIMO applications because such antennas carry all the essential characteristics and show better capabilities and advantages 3–6 …”

Section: Introductionmentioning

confidence: 99%

Construction of compact two‐port throne‐shaped antenna with dual stopbands and high isolation for Ultrawideband Multiple‐Input Multiple‐Output wireless communication systems

Agarwal

Dhanoa

Khandelwal

2022

Int J Communication

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Summary A throne‐shaped compact ultrawideband (UWB) two‐port multiple‐input multiple‐output (MIMO) antenna operating from 2.9 to 11.5 GHz is introduced. Dual‐band rejections are created at the center frequency of 5.5 and 7.5 GHz by embedding U‐slot on the feedline and split ring resonator (SRR) on the ground plane to eliminate interference with narrowband systems of these frequencies, respectively. Low mutual coupling of −22 dB is obtained almost throughout the full band by etching a rectangular slot in a cone‐shaped stub. Procedures for achieving the UWB band as well as two stopbands are discussed in detail. Current distribution, gain and radiation pattern for the proposed antenna are also studied. Peak gain of 2.51 dBi and radiation efficiency greater than 73% is obtained. Diversity parameters confirming the MIMO characteristics are also investigated. Experimental results are obtained through a practical model in the anechoic chamber to validate the simulations.

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Broadband sub‐6 GHz flower‐shaped MIMO antenna with high isolation using theory of characteristic mode analysis (TCMA) for 5G NR bands and WLAN applications

Babu¹,

Das²,

Ali

et al. 2023

Int J Communication

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A small size neutralization line integrated flower-shaped MIMO antenna is designed and analyzed for sub-6 GHz type 5G NR frequency bands like n79 (4400-5000 MHz), n78 (3300-3800 MHz), n77 (3300-4200 MHz), and WLAN (5150-5825 MHz) applications. The novel approach of theory of characteristic mode analysis (TCMA) is introduced to provide physical insight of the designed structure and its characteristics behavior. Due to the suggested modifications in the geometry, the isolation among the patches is greatly increased.The overall miniaturized dimension of the MIMO antenna is 25 Â 40 mm 2 . The edge-edge spacing among the elements is 0.0233λ. The prototype antenna is fabricated and measured that shows good agreement compared with simulated results. The designed MIMO antenna without the presence of decoupling structure offers an isolation of 28 dB, gain of 3.6 dBi, and radiation efficiency of 69.7% at the resonant frequency. The proposed MIMO antenna covers a broad range of frequency band from 3.296 to 5.962 GHz with À10 dB impedance bandwidth of 2666 MHz and maintains a good isolation of greater than 50 dB for the entire operating band. The tested radiation efficiency and gain are 85.3% and 6.22 dBi at 3.5 GHz. Moreover, the diversity parameters of the neutralization line integrated MIMO antenna, that is, channel capacity loss (CCL) isolation, mean effective gain (MEG), total active reflection coefficient (TARC) diversity gain (DG), and envelope correlation coefficient (ECC), are analyzed and discussed in this article.

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Design of UWB MIMO Antenna to Reduce the Mutual Coupling Using Defected Ground Structure

Cited by 38 publications

References 19 publications

3-D twelve-port multi-service diversity antenna for automotive communications

3-D twelve-port multi-service diversity antenna for automotive communications

Construction of compact two‐port throne‐shaped antenna with dual stopbands and high isolation for Ultrawideband Multiple‐Input Multiple‐Output wireless communication systems

Broadband sub‐6 GHz flower‐shaped MIMO antenna with high isolation using theory of characteristic mode analysis (TCMA) for 5G NR bands and WLAN applications

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