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Rohit Anand

Bio: Rohit Anand is an academic researcher from Punjab Technical University. The author has contributed to research in topics: Fractal antenna & Patch antenna. The author has an hindex of 2, co-authored 2 publications receiving 15 citations.

Papers
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Journal ArticleDOI
TL;DR: The bandwidth obtained by the MLAPO technique has been found to be better than that obtained by PSO and normal LAPO algorithm.
Abstract: An inscribed hexagonal fractal slotted patch antenna with some additional geometry and slots is proposed for the optimization in this paper. This research work is concerned with the optimization of this slotted fractal antenna with the help of the curve-fitting method in conjunction with the modified version of Lightning Attachment Procedure Optimization (MLAPO) technique. The data required for the curve-fitting technique and for the optimization technique have been obtained by varying some of the parameters of the proposed antenna. Different equations are developed to know the relations between these parameters of the proposed antenna. The MLAPO technique is applied thereafter to calculate the different optimized geometrical parameters to optimize the bandwidth for the proposed antenna. The optimized geometrical parameters are verified with the help of a parametric variation to justify the reliable optimization. The bandwidth obtained by the MLAPO technique has been found to be better than that obtained by PSO and normal LAPO algorithm. The prototype of the optimized antenna is fabricated and the experimental results are found to be compatible with the results obtained by simulation. The proposed optimized antenna may be utilized in various applications in C and X bands.

16 citations


Cited by
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Journal ArticleDOI
28 Sep 2021-Energies
TL;DR: The fabrication and testing of MIMO antennas were completed, where the measurement results matched the simulation results, and the proposed smartphone antenna array architecture is a better entrant for upcoming 5G cellular implementations.
Abstract: The study and exploration of massive multiple-input multiple-output (MMIMO) and millimeter-wave wireless access technology has been spurred by a shortage of bandwidth in the wireless communication sector. Massive MIMO, which combines antennas at the transmitter and receiver, is a key enabler technology for next-generation networks to enable exceptional spectrum and energy efficiency with simple processing techniques. For massive MIMOs, the lower band microwave or millimeter-wave band and the antenna are impeccably combined with RF transceivers. As a result, the 5G wireless communication antenna differs from traditional antennas in many ways. A new concept of the MIMO tri-band hexagonal antenna array is being introduced for next-generation cellular networks. With a total scaling dimension of 150 × 75 mm2, the structure consists of multiple hexagonal fractal antenna components at different corners of the patch. The radiating patch resonates at 2.55–2.75, 3.45–3.7, and 5.65–6.05 GHz (FR1 band) for better return loss (S11) of more than 15 dB in all three operating bands. The coplanar waveguide (CPW) feeding technique and defective ground structure in the ground plane have been employed for effective impedance matching. The deviation of the main lobe of the radiation pattern is achieved using a two-element microstrip Taylor antenna array with series feeding, which also boosts the antenna array’s bandwidth and minimizes sidelobe. The proposed antenna is designed, simulated, and tested in far-field radiating conditions and generates tri-band S-parameters with sufficient separation and high-quality double-polarized radiation. The fabrication and testing of MIMO antennas were completed, where the measurement results matched the simulation results. In addition, the 5G smartphone antenna system requires a new, lightweight phased microwave antenna (μ-wave) with wide bandwidth and a fire extender. Because of its decent performance and compact architectures, the proposed smartphone antenna array architecture is a better entrant for upcoming 5G cellular implementations.

106 citations

Book ChapterDOI
TL;DR: In this article , the authors proposed to enhance the interactive communication in the network by incorporating the relay nodes between BS and CH in case the CH is out of the range of the BS.
Abstract: Energy efficiency is a crucial parameter for the ad hoc wireless sensor network as it increases the life of a network. In an ad hoc wireless sensor network, every node ingests some part of energy with relaying of the remaining energy over that network. The suggested work is also directed toward elongating the life of the ad hoc wireless sensor network (WSN) achieved by increasing the energy efficiency for interactive communication in a network made up of clusters. In a clustered network, the clustered nodes are chosen randomly resulting in the probability of inconsistent disposition of these cluster heads. All the base stations communicate with the different cluster heads that in turn communicate with the different nodes. In some cases, the base station (BS) communicates with the cluster heads (CHs) with the help of other cluster heads (CHs) if the range of the base station is limited. This concept is called interactive communication within the WSN. The proposed research is to enhance the interactive communication in the network by incorporating the relay nodes between BS and CH in case the CH is out of the range of the BS. The worthwhile choice of the relay nodes, which may be located between base station and cluster head or between two cluster heads, is carried out with reference to interspace and energy. If during the communication within the network the cluster head/s die, the clustering is done again within the network resulting in the choice of new relay node/s. The work proposed is based on recognizing the relay nodes over the network. The analysis shows that the suggested work yields better network life and effective network communication. The present work has been performed on a specific routing protocol called LEACH protocol.

16 citations

Proceedings ArticleDOI
03 Sep 2021
TL;DR: In this paper, a contrast between the cosine harmonic transform of wavelet transform, guided filter algorithm and discrete form of Wavelet transform is presented, which validates the superiority of DCHWT based fusion algorithm over others.
Abstract: Image fusion is mandatory to enhance the object recognition in images by concatenating many sources of planetoid, aerial and ground-based imaging systems with other related data set. Image fusion is the methodology of overlapping at least a couple of pictures so that their combination enhances the overall information content. In literature, there are many algorithms, whose objective is the fusion of images to improve the characteristics of the final image. This work primarily presents a contrast between thee cosine harmonic transform of wavelet transform, guided filter algorithm and discrete form of Wavelet transform. It can be stated with simple observation that the image fusion techniques based on guided refining or masking retrieve a good visual resultant image. Their performance is evaluated on Standard “Gun” dataset with the help of three most widely used performance evaluation metrics. The experimentation and work done on MATLAB, validates the superiority of DCHWT based fusion algorithm over others.

7 citations

Book ChapterDOI
TL;DR: In this article , a slotted fractal antenna is designed and then undergone to a recent optimization technique called modified lightning attachment procedure optimization in association with the curve fitting technique, which provides the optimized geometrical dimensions.
Abstract: A novel slotted fractal antenna is designed in this chapter. The designed antenna is then undergone to a recent optimization technique called modified lightning attachment procedure optimization in association with the curve fitting technique. The optimized antenna provides the optimized geometrical dimensions. The optimized antenna provides much higher bandwidth than that of the actual (or unoptimized) design in X-band and Ku-band. The radiation properties and gain of the optimized antenna are also discussed. The highest gain of the optimized antenna is found to be 8.50 dB. The optimized bandwidth is also compared with the optimized bandwidth in the existing literature based on other nature-inspired techniques.

6 citations