A compact wideband antenna with detailed time domain analysis for wireless applications

Khangarot, Shashank; Sravan, B.V.; Aluru, Namratha; Saadh, A.W. Mohammad; Poonkuzhali, R.; Kumar, Om Prakash; Ali, Tanweer; Pai, M. M. Manohara

doi:10.1016/j.asej.2020.02.008

Cited by 12 publications

(13 citation statements)

References 11 publications

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“…The time-domain metrics group delay (GD) and fidelity factor (FF) are examined for the designed antenna. To perform time-domain analysis, identical antennas are arranged 100 mm apart in a face-to-face and side-to-side configuration [22], [23]. The transmitted and received pulse qualities can be studied in order to ensure seamless communication.…”

Section: E Time Domain Characteristicsmentioning

confidence: 99%

Design of a Six-Port Compact UWB MIMO Antenna With a Distinctive DGS for Improved Isolation

et al. 2022

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A low-profile printed six-port ultrawideband (UWB) antenna with a novel decoupling structure for enhancing port-to-port isolation is analyzed in this paper. Six symmetrical pyramidal form UWB antennas with defective ground structures interspersed with parasitic components served as a unique decoupling structure in the proposed design. The grounded branches and modified rectangular stubs on the ground plane generate closed and open current distribution channels, causing the uniform current flow to be disrupted and the coupling effect to be neutralized. The projected six-port antenna has an electrical dimension of 0.68×0.89×0.01 λ 3 (λ is computed using a lower frequency of 2.9 GHz), having a below -10 dB impedance bandwidth of 116% from 2.9 to 11 GHz. Across the impedance bandwidth, the average port-to-port isolation is better than 20 dB. The antenna design has acceptable radiation properties with a peak gain of 8.3 dBi at a frequency of 7.5 GHz. Further, the projected design is also exposed to the time domain characteristics and diversity metrics. Among the different ports, the values of the group delay and fidelity factors are less than 1.5 ns and more than 0.92, correspondingly. The values of the diversity parameters such as ECC < 0.075, DG approximately 10 dB, MEG<−3dB, TARC<−10 dB, CCL < 0.3 bps/Hz, and ME<−2 dB ensure that the projected design is appropriate for the MIMO applications. The designed antenna is fabricated and measured, and the results are in line with the simulation.INDEX TERMS Isolation, antenna, decoupling structure, time-domain, ECC, DGS.

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Section: E Time Domain Characteristicsmentioning

confidence: 99%

Design of a Six-Port Compact UWB MIMO Antenna With a Distinctive DGS for Improved Isolation

et al. 2022

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“…The increasing demand for wireless systems with high data rates and low CC-L is driving the evolution of transmission systems operating at specific frequencies [1][2][3]. MIMO antenna technology has emerged as a key solution to meet the requirements of modern wireless communications, offering higher data rates and lower CC-L [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Four port MIMO antenna for IoT applications in public safety band and sub-6 GHz TDD 5G band

Kumar,

Prakash,

Padhy

2024

Eng. Res. Express

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This paper proposes a Multi Input Multi Output (MIMO) antenna specifically developed for Internet of Things (IoT) Applications in Public Safety 4.9 GHz (4940-4990 MHz) band and Sub-6 GHz TDD 5G band (4800-4990 MHz). The proposed MIMO antenna consists of Koch fractal element, and it is introduced in four port configuration. HFSS is used to design, analyze, and optimize the performance parameters of the introduced MIMO antenna. To achieve optimum performance in terms of isolation, initially all two radiating elements of 1x2 MIMO configuration with varying orientations have been evaluated, which are positioned on top of a cost-effective FR4 substrate. Later on 2x2 and 1x4 MIMO configurations are evaluated; and 1x4 configuration is fabricated and tested in lab for the verification of simulated results. The MIMO antenna demonstrates resonance at 4.97 GHz, offering a bandwidth of 320 MHz (4795 - 5115 MHz). It exhibits excellent performance with Envelope Correlation Coefficient (EC-C) < 0.4, Diversity Gain (D-G)> 9.8, Mean Effective Gain (ME-G) < 3 dB, Total Active Refection Coefficient (TAR-C) < -14 dB, Channel Capacity Loss (CC-L) < 0.4 bits/s/Hz, and Isolation < -20 dB across the entire operating frequency range. The proposed MIMO antenna has a maximum gain of 1.2 dBi and radiation efficiency (η) of 80%. This proposed antenna offers several advantages over traditional ones, including high efficiency (η), low CC-L, and significant isolation, even without the use of special techniques to achieve isolation

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“…This makes it necessary to design communication devices according to the size and performance criteria of remote access and wearable technologies [1]. Increasing usage demands have accelerated the study of ultrawideband (UWB) antennas required for wireless connections to be used for data exchange [2]. In 2002, the UWB frequency range was defined by the Federal Communications Commission (FCC) as 3.1-10.6 GHz frequency spectrum [3].…”

Section: Introductionmentioning

confidence: 99%

“…UWB technology has become popular in wireless applications due to its wide bandwidth, high data rate, low power consumption, etc. An UWB antenna must cover the 7.5 GHz spectrum to be fully utilized [2]. Some antenna structures are recommended for UWB applications [4][5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

A detailed performance analysis of a novel UWB flexible monopole antenna realized with airbrush technique for different technologies

Geyikoğlu

Çavuşoğlu

2022

Flex. Print. Electron.

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In this article, a detailed performance analysis of a novel flexible monopole antenna with a %141.46 impedance bandwidth in the 2.4-14 GHz UWB range is present. The antenna is fabricated on a flexible Kapton substrate with compact geometry for different technology applications under different bending conditions. The airbrush printed technique was preferred due to its advantages such as easy production, conductivity control, and no loss of surface waves. The antenna has dimensions of 82x57x0.125 mm3 and is fed by a coplanar waveguide transmission line. All necessary antenna simulations are performed using CST. According to the positions of identical antennas face to face, face to side, side to side, time-domain analysis is performed for the impact response analysis. The transmission coefficient characteristics (S21) and the group delay are measured for various bending conditions. Time and frequency domain analyzes show that the proposed UWB antenna has the much-needed stable performance in UWB antenna. The proposed UWB antenna has good performance over the operating spectrum for a flat and bending configuration.

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A compact wideband antenna with detailed time domain analysis for wireless applications

Cited by 12 publications

References 11 publications

Design of a Six-Port Compact UWB MIMO Antenna With a Distinctive DGS for Improved Isolation

Design of a Six-Port Compact UWB MIMO Antenna With a Distinctive DGS for Improved Isolation

Four port MIMO antenna for IoT applications in public safety band and sub-6 GHz TDD 5G band

A detailed performance analysis of a novel UWB flexible monopole antenna realized with airbrush technique for different technologies

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