Design and Performance Analysis of G-Shaped Compact Acs Fed 4-Port Mimo Antenna for Triple Frequency Band Applications

Naidu, Praveen V.; Akkapanthula, Sai Haranadh; Maheshbabu, Dhanekula; Kumar, Arvind; Vummadisetty, and Neelima

doi:10.2528/pierc21021501

Cited by 11 publications

(6 citation statements)

References 26 publications

(33 reference statements)

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“…To reduce this mutual coupling, various mutual coupling (MC) reduction or decoupling, or isolation enhancement techniques were introduced in the literature. They are neutralization line (NL) [2], decoupling network (DN) [3][4][5][6], metasurface, metamaterial (MTM) [7], electronic band gap (EBG) [8,9], frequency selective surface (FSS), photonic band gap (PBG), optically transparent structures [10], split ring resonator (SRR), complementary split ring resonator (CSRR) [11,12], dielectric resonator antenna (DRA), ground plane modification (GPM), defected ground structure (DGS) [13,14], slots [15][16][17][18], band notching techniques implementation, parasitic elements, metal strips, shorting pins, insertion of stubs [19][20][21], frequency reconfigurable [22,23], implementing PIN diodes, microstrip open loop resonator (MOLR), quasi self complementary antenna (QSCA) [24], inter element spacing [25][26][27][28][29], insertion of slits, fractal structures, modified substrates, locating antennas on different substrate layers, etc. These techniques improve impedance matching, enhance gain, efficiency, and increase the complexity of antenna design.…”

Section: Literature Reviewmentioning

confidence: 99%

High Isolation Four-Port Wrench Shaped Compact Uwb Mimo Antenna for 3.1-10.6 GHZ Band

Gayatri¹,

Garikipati²,

Chaitanya³

et al. 2022

PIER C

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This present article reports a high isolation four-port Wrench shaped compact UWB MIMO antenna with a novel decoupling network in the ground plane, and its step-by-step evolution is presented for 3.1-10.6 GHz. The proposed four-port MIMO antenna is fabricated on an FR4 substrate of size 44 × 44 mm 2 (0.342λ 0 × 0.342λ 0 ), where λ 0 is a free space wavelength at 2.33 GHz, with 7 mm edgeto-edge spacing between the radiating elements. It consists of four orthogonal symmetrically placed identical radiating elements each of which has a Wrench-shaped circular patch with a rectangular slot cut in the partial ground. The performance characteristics of this MIMO antenna are reflection coefficients S 11 ≤ −10 dB in the range from 2.33 GHz to 11.7 GHz, mutual coupling coefficients S 21 ≤ −28.24 dB, and S 31 ≤ −22.35 dB. The maximum peak gain is 5.15 dBi at 9.2 GHz, and minimum is 1.27 dBi at 3.1 GHz. The maximum efficiency is 98% at 4.66 GHz, and the minimum is 93% at 6 GHz. The diversity parameters of proposed four-port MIMO antenna are reported as ECC ≤ 0.2, DG ≤ 10, TARC ≤ −10 dB, the ratio of MEG between any two elements is near unity, and CCL < 0.38 bits/s/Hz in the band of interest. The design is fabricated and measured. The measured and simulated results are in good agreement and are within the permissible limits.

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Section: Literature Reviewmentioning

confidence: 99%

High Isolation Four-Port Wrench Shaped Compact Uwb Mimo Antenna for 3.1-10.6 GHZ Band

Gayatri¹,

Garikipati²,

Chaitanya³

et al. 2022

PIER C

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“…In previous studies, researchers have explored multiband MIMO antennas with dual ports [19][20][21][22][23] and quad/multiport ports [24][25][26][27][28][29]. The dual-port antenna design proposed in [19] utilized a defective ground and parasitic element to create a dual-band antenna suitable for WLAN applications.…”

Section: Introductionmentioning

confidence: 99%

Pentaband Dual-Polarized Antenna for Multiservice Wireless Applications

Ushasree

Agarwal

2023

Computation

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This paper presents a novel design for and an experimental study of a dual-polarized quad-port MIMO antenna. The design achieves resonance at five distinct frequency bands with reduced mutual coupling. The design includes a single annular ring slot, four truncated rectangular corners, and a truncated aperture to improve resonance behavior. The design is then extended to a four-port MIMO antenna by including a ground-plane slit to enhance isolation between antenna elements at the center resonance band. The antenna achieves resonances at 5 distinct bands, ranging from 1.5 to 8.4 GHz, with significant mutual coupling reductions. The resonances of the quad-port pentaband MIMO antenna are achieved at 1.55 GHz (1.5–1.65 GHz), 2.5 GHz (2.4–2.7 GHz), 5.2 GHz (5–5.85), 7.3 GHz (7.1–7.4), and 8.15 GHz (7.9–8.4), with respective mutual coupling reductions of 27 dB, 37 dB, 21 dB, 29 dB, and 21 dB. Additionally, the 3 dB axial ratio bandwidth (ARBW) is observed at 6.5% (1.5–1.6 GHz) and 15% (2.4–2.7 GHz) in 2 distinct bands, and the envelope correlation coefficient and diversity gain are calculated within the specified band range. Experimental measurements of the prototype for the quad-port antenna are conducted, with excellent agreement found between the results and the simulations.

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“…However, near field interaction due to close placement limits the degree of isolation that degrades the MIMO performance. To reduce this field interaction between MIMO antenna members, various techniques can be used 4–8 . Planar UWB antennas with slots 9–13 using CPW and microstrip feedings can be used.…”

Section: Introductionmentioning

confidence: 99%

“…To reduce this field interaction between MIMO antenna members, various techniques can be used. [4][5][6][7][8] Planar UWB antennas with slots [9][10][11][12][13] using CPW and microstrip feedings can be used. The most common methods of improving isolation is through insertion of electronic band gap structures (EBG), 14 using neutralization lines, 15 by introducing parasitic elements [16][17][18] and by using meta material absorbers.…”

mentioning

confidence: 99%

A tri‐band triangular lamp post shaped quad port MIMO antenna

Naidu

Babu

Akkapanthula

et al. 2022

Int J Communication

Self Cite

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Summary In this article, a novel and compact multiband quad port asymmetric coplanar strip‐fed triangular lamp post shaped printed multiple‐input and multiple‐output (MIMO) antenna has been presented. The proposed MIMO antenna is designed and developed on a FR‐4 (εr = 4.4) dielectric (40 × 40 × 1.6) mm3. The proposed MIMO antenna utilizes the pattern diversity technique to obtain the desired isolation among closely spaced radiators. Simulated and measured results indicate that |S11| of proposed lamp post shaped MIMO antenna array < −10 dB, that assures the operation in three frequency bands, namely, (2.27–2.42), (3.38–3.62), and (4.5–6.23) GHz, which are the operating bands of WiBro, Bluetooth, WiMAX, and WLAN/WiMAX, respectively. A peak radiation gain of 5.1 dBi is observed alongside with a maximal radiation efficiency close to 92% in operating band for the proposed MIMO antenna. A minimal isolation of −18 dB between the antenna elements has been observed in all three operating bands, which is necessary for improved performance to achieve high data transfer rates. Performance critical diversity characteristics such as diversity gain (DG), envelope correlation coefficient (ECC), total active reflection coefficient (TARC), mean effective gain (MEG), and channel capacity (CC) of the compact proposed lamp post shaped MIMO antenna have been calculated and found that the correlation coefficient was <0.001 with higher diversity gain > 9.95 dB and achieved better CCL < 0.4 bits/s/Hz in the respective operating bands. With these results, the proposed triangular lamp post shaped MIMO array is suitable for high data rate applications, which is one of the main concerns of 5G and beyond networks.

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Design and Performance Analysis of G-Shaped Compact Acs Fed 4-Port Mimo Antenna for Triple Frequency Band Applications

Cited by 11 publications

References 26 publications

High Isolation Four-Port Wrench Shaped Compact Uwb Mimo Antenna for 3.1-10.6 GHZ Band

High Isolation Four-Port Wrench Shaped Compact Uwb Mimo Antenna for 3.1-10.6 GHZ Band

Pentaband Dual-Polarized Antenna for Multiservice Wireless Applications

A tri‐band triangular lamp post shaped quad port MIMO antenna

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