DIPTIRANJAN SAMANTARAY
@fot.du.ac.in
Assistant Professor and Faculty of Tecnology, University of Delhi
Faculty of Technology, University of Delhi
RESEARCH, TEACHING, or OTHER INTERESTS
Engineering
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Kommuju Sathwik, Diptiranjan Samantaray, and Somak Bhattacharya
IEEE
This study investigates the design, creation, and implementation of a metasurface antenna (MSA) specifically engineered for 5G connectivity. The MSA is constructed in conjunction with a simple microstrip patch antenna, yielding a realized gain of 4.5 dBi. This is achieved by utilizing a substrate made of Rogers RT Duroid 5880 at a frequency of 25.8 GHz. Elevating the design further, a two-layer 4×4 order metasurface (MS) is introduced, resulting in a substantial gain enhancement to 9.91 dBi. The antenna's dimensions are specified as 0.6 λ0×0.6 λ0×0.5 λ0, where λ0 represents the free space wavelength at 25.8 GHz. The overall 4×4 MSA showcases an impressive maximum efficiency of 86% at the aforementioned frequency. The exceptional performance of the proposed antenna presents a promising trajectory for future 5G implementations, adeptly addressing the multifaceted demands of diverse applications in the realm of next-generation wireless networks.
Munasa Yuvaraju, Kamisetti Sasank, Diptiranjan Samantaray, Biswa Ranjan Swain, Nikhil Kumar, and Somak Bhattacharyya
IEEE
This manuscript introduces a methodical investigation into the design of left-handed circularly polarized (LHCP) antennas tailored for optimal performance within the framework of Internet of Things (IoT) wireless networks. The envisioned antenna has been crafted using a cost-effective FR-4 substrate with specified dimensions $0.603 \\lambda\\times 0.603\\lambda \\times 0.0053 \\lambda$ (Where $\\lambda$ denotes the free space wavelength at the frequency of 2.59 gigahertz). By the use of circular cross slot parasitic patch mounted on foam spacer over regular truncated antenna, At 2.59 GHz, a heightened gain of 5.27 decibels isotropic (dBi) has been achieved. The proposed antenna can be useful for IoT devices compatible with 5G NR n38 and n41 bands.
Rajan Agrahari, Satyesh Singh, Diptiranjan Samantaray, Bambam Kumar, Somak Bhattacharyya, Manpuran Mahto, and Pradip K. Jain
Wiley
Madhavi Chandra, Nilotpal, Diptiranjan Samantaray, M. Thottappan, and Somak Bhattacharyya
Institute of Electrical and Electronics Engineers (IEEE)
Kommuju Sathwik, Biswa Ranjan Swain, Somak Bhattacharya, and Diptiranjan Samantaray
IEEE
This paper provides valuable insights into the design, development, and implementation of a 5G metasurface antenna (MSA). The MSA is assembled with a simple microstrip patch antenna that achieves the realized gain of 4.8dBi using substrate of Rogers RT Duroid 5880 (Lossy) at a frequency of 25.9 GHz. The two-layer $4 \\times 4$ order metasurface (MS) has enhanced the gain of the antenna to 9.31dBi. The dimensions of the proposed antenna are $0.52 \\lambda_{0} \\times 0.52 \\lambda_{0} \\times 0.51 \\lambda_{0}$ where $\\lambda_{0}$ is the free space wavelength at 25.9GHz. The overall $4 \\times 4$ MSA also provides the maximum efficiency of 86 % at 25.9GHz. The proposed antenna's outstanding performance offer a promising avenue for future 5G deployments, catering to the demands of diverse applications in the era of next-generation wireless networks.
Kamisetti Sasank, Munasa Yuvaraju, Diptiranjan Samantaray, Biswa Ranjan Swain, Deepak Ram, and Somak Bhattacharyya
IEEE
This paper describes a novel technique for wearable IoT applications that integrates the metasurface with flexible antenna. The antenna combines the functionalities of metasurface technology with the mechanical flexibility needed for wearable devices. The antenna comprises a 4×4 array metasurface and a rectangular patch utilizing U-shaped and circular slots on wool substrates. The design achieves a 3.29 GHz wide bandwidth (5.97 GHz- 9.26 GHz) and a 5.2 dBi realized gain. The enhanced bandwidth has been employed to improve data transmission and reception of the wearable devices.
Diptiranjan Samantaray, Ansuman Shubham, Sambit Kumar Ghosh, Smrity Dwivedi, and Somak Bhattacharyya
IEEE
This paper presents the design and development of a miniaturized, efficient graphene-based antenna working in the terahertz (THz) domain. The top radiating patch of square-shaped graphene is designed over silicon dioxide (SiO2) substrate while the bottom surface is grounded with gold. The proposed antenna operates over the lower THz frequency bands of 1.3 THz to 2.73 THz and 2.75 THz to 3.01 THz with the maximum return loss of 27 dB at 2.24 THz. The antenna achieves the realized gain of 6.94 dBi at 2.56 THz and provides directional radiation characteristics in both the E- and H-planes. The proposed antenna further exhibits the beam scanning feature over a range close to 32°. The proposed graphene-based antenna is compact, directive, and highly efficient in the THz domain. It finds useful applications in biomedical, satellite communication, high-quality video imaging etc.
Diptiranjan Samantaray and Somak Bhattacharyya
Informa UK Limited
Diptiranjan Samantaray, Sambit Kumar Ghosh, and Somak Bhattacharyya
Institute of Electrical and Electronics Engineers (IEEE)
This letter presents the design, circuit model analysis, and realization of a novel metasurface-based low-profile slotted patch antenna for dual-band applications in the C and X-bands. The antenna prototype comprises a modified slotted patch and a 7×7 array of periodic metasurface (MS) as superstrate configuration. Both the radiating patch and the MS layer have been designed over FR4 dielectric substrate while the overall dimension of the proposed antenna being 1.03λ0×1.03λ0×0.15λ0 only, where λ0 is the free-space wavelength at 8.62 GHz. The −10 dB impedance bandwidth of the proposed antenna has been realized at two distinct frequency bands ranging from 4.18 to 4.44 GHz and 8.11 to 11.14 GHz. The fractional bandwidths of 6.1% and 35.15% have been achieved at 4.26 and 8.62 GHz, respectively. The equivalent circuit model of the proposed prototype has been sequentially developed to validate the electromagnetic simulated results. The antenna radiates in the boresight direction, with a maximum realized gain of 8.72 dBi at 10.99 GHz and radiation efficiency of 91%. The proposed prototype has also been fabricated and the experimentally measured results are in good resemblance with the simulated one.
Ansuman Shubham, Diptiranjan Samantaray, Sambit Kumar Ghosh, Smrity Dwivedi, and Somak Bhattacharyya
Elsevier BV
Apratim Chatterjee, Diptiranjan Samantaray, Sambit Kumar Ghosh, Chittajit Sarkar, Sriparna Bhattacharya, and Somak Bhattacharyya
IEEE
This paper presents the performance analysis of a rectangular microstrip graphene-based printed antenna loaded with graphene metasurface between two dielectric substrates for efficient operation in the terahertz spectrum. The graphene patch with inset feed reports high return loss of 55.2 dB at 2.134 THz and noticeable fractional bandwidths of 23 %, 9.8 %, 6.9 %, and 4.6 % at the frequencies 1.762 THz, 2.134 THz, 2.462 THz and 2.782 THz respectively. With highest realized gain of 5.37 dBi at 2.782 THz, the proposed antenna may be suitable for spectroscopy, security scanning and numerous medical applications.
Ashwani Kumar Singh, Sambit Kumar Ghosh, Diptiranjan Samantaray, and Somak Bhattacharyya
IEEE
In the present work, a metasurface-based band-stop filter (BSF) has been designed and studied for applications in S, C and X bands. The single unit of the design comprises ring and plus-shaped metallic patterns made of copper layer on top of a FR-4 substrate while the backside is completely etched off. The proposed unit cell has a dimension on the order of $0.16\\lambda \\times 0.16\\lambda$, making it compact in nature. When the electromagnetic (EM) wave is incident on the structure, band-stop characteristics have been observed at three distinct frequencies 2.67 GHz, 7.28 GHz and 9.71 GHz lying in S, C and X bands, respectively. The simulated results of the structure have been validated by the experimentally measured data. The design is ultrathin $(\\lambda/68.67)$ referred to the lowermost stopband frequency. The transmission response of the BSF is nearly stable up to 45° incident angle for both transverse magnetic and transverse electric polarization of the incident EM wave. The BSF further exhibits polarization insensitivity property owing to the four-fold symmetry. The structure has been fabricated and the experimentally measured results have been found to be good agreement with the simulated ones.
Diptiranjan Samantaray and Somak Bhattacharyya
IEEE
The design and performance of a highly directive gain enhanced metasurface antenna (MSA) has been reported in this paper. The MSA is formed by incorporating the T-shaped patch with $3\\times 5$ order metasurface (MS) in which the MS is associated with annular hexagonal shaped patches arranging in periodic manner. This antenna operates at 4.99 GHz and the −10 dB impedance bandwidth has been achieved in the range 4.79 GHz-5.09 GHz. The antenna provides the maximum realized gain of 11.2 dBi at 4.99 GHz. The endfire radiation pattern has been observed along E-plane while nearly omnidirectional pattern has been realized along H-plane. The designed structure can be promoted for WLAN applications.
Manikant Jha, Diptiranjan Samantaray, and Somak Bhattacharyya
Elsevier BV
Diptiranjan Samantaray and Somak Bhattacharyya
American Geophysical Union (AGU)
This study proposes a metasurface (MS) based high performance antenna in which the radiating patch is embedded with split ring resonators in its square slots. The slotted corner cut rectangular patch antenna with defected ground plane and the MS are placed together in the same plane. The designed prototype operates over dual frequencies with impedance bandwidths (S11 < −10 dB) of 4.02% and 28.24% at 9.20 and 11.65 GHz respectively. The antenna possesses a maximum return loss of 42 dB at 11.65 GHz over 11.23–14.5 GHz band while the measured realized gain of 10.66 dBi has been obtained at 14.44 GHz. The antenna exhibits unidirectional far‐field radiation characteristics and the radiation efficiency of 67% has been achieved at 14.44 GHz. The antenna prototype has been fabricated on FR4 dielectric substrate, having an electrical size of 1.16λ0 × 1.82λ0 × 0.06λ0, where λ0 is the free‐space wavelength at 11.65 GHz. This makes the proposed antenna single‐layer, broad impedance bandwidth, high gain and ease of fabrication in nature. The measured results are in good agreement with the simulated ones. The designed antenna can be applicable in defense and military, satellite communication, medical analysis for determination of radio waves and numerous communication fields.
Diptiranjan Samantaray and Somak Bhattacharyya
IEEE
A low-profile, efficient and directive gain enhanced antenna on an artificial magnetic conductor (AMC) reflector has been proposed in this paper. The AMC based metasurface antenna (MSA) has been formed by incorporating the CPW-fed slotted patch antenna along with a $5\\times 5$ order metasurface (MS). The slotted patch and the AMC reflector have been designed over FR4 dielectric and separated by a layer of Teflon, thereby acting as a superstrate. This antenna has fractional bandwidths of 11.6 %, 5.3 %, and 7% at three frequencies, such as 4.13 GHz, 8.80 GHz, and 12.01 GHz respectively. The antenna achieves the realized gain of 10.2 dBi at 12.4 GHz. The antenna provides directional radiation characteristics in both the E- and H-planes. The proposed prototype can be used for WLAN applications, medical supervision, satellite communication, and defence applications in the C and X-bands.
Apratim Chatterjee, Dweepayan Sen Sharma, Diptiranjan Samantaray, Chittajit Sarkar, Chinmoy Saha, and Somak Bhattacharyya
Springer Singapore
M. J. Anand Krishnan, Diptiranjan Samantaray, Anu Mohamed, Chinmoy Saha, and Somak Bhattacharyya
Springer Singapore
Manikant Jha, Diptiranjan Samantaray, and Somak Bhattacharyya
Springer Singapore
Diptiranjan Samantaray and Somak Bhattacharyya
Institute of Electrical and Electronics Engineers (IEEE)
In this paper, a novel, compact, high-gain, directive, and superstrate configuration-based metasurface (MS) antenna has been designed, which incorporates a fractal-shaped slotted patch having a periodic arrangement of square patches along with a shorting via at its center and a couple of rectangular slots in the ground plane. The MS is designed over the FR4 dielectric by introducing a periodic arrangement of unit cells in which the unit cell is structured by a C-type patterned patch in the center surrounded by a couple of L-type-shaped patches. The MS is separated by a layer of Teflon from the conventional patch antenna designed over the FR4 dielectric, thereby acting as a superstrate. The proposed antenna provides good impedance matching across the frequency region of 10.14–10.94 GHz with a unidirectional radiation pattern. A fractional bandwidth of 7.6% and a maximum return loss of 24 dB have been realized at 10.44 GHz. The measured realized gain of 7.57 dBi was obtained at the same operating frequency. As the proposed antenna is more efficient, it can be promoted for $X$ -band operations, such as satellite communication, defense purpose, and medical supervision.
Anand Krishnan M J, Diptiranjan Samantaray, Anu Mohamed, Chinmoy Saha, and Somak Bhattacharyya
IEEE
In this paper, a gain enhanced quad band fractal based printed antenna backed with artificial magnetic conductor (AMC) has been proposed for S and C-band applications. The proposed antenna is designed to operate at 2.7 GHz, 4.84 GHz, 5.58 GHz and 5.9 GHz with highly realized gains of 8 dBi, 10.1 dBi, 6.9 dBi and 8.5 dBi respectively. The realized antenna provides narrow band impedance bandwidths of 40 MHz, 50 MHz, 55 MHz and 120 MHz in the four operating frequency bands. The ground, AMC unit cell, reflector sheet and the radiating patch of the antenna have been made using copper while Styrofoam has been used as the substrate material. Therefore, the proposed design is a promising candidate for low cost, high gain and multi-band structure mount antenna applications.
Apratim Chatterjee, Dweepayan Sen Sharma, Diptiranjan Samantaray, Chittajit Sarkar, Chinmoy Saha, and Somak Bhattacharyya
IEEE
Printed metasurface antenna has emerged as the most prominent antenna structure in the emerging wireless technologies. This paper proposes the design of a compact, high gain metasurface antenna (MSA) in which the triangular patch antenna has been used as a radiating element. The conventional patch is loaded with a novel trident shaped metasurface (MS) to enhance the performance of the antenna exhibiting a penta-band operating characteristics. The proposed MSA also introduces defected ground and microstrip structures to improve the bandwidth. The proposed antenna resonates at 6.68 GHz, 9.21 GHz, 10.91 GHz, 11.50 GHz and 11.92 GHz respectively, having the highest realized gain of 11 dBi making it suitable for wireless system designs for satellite communication (X-band), defense applications and 5G communications.
Diptiranjan Samantaray and Somak Bhattacharyya
IEEE
The design and performance of a superstrate-based metasurface (MS) antenna with defected ground has been reported in this paper for dual band application. The square annular shaped patch arranged in fractal manner acts as a radiating element. This antenna operates over dual frequency regions ranging from 8.28-8.62 GHz and 10.52-11.28 GHz with the respective fractional bandwidths of 4% and 7%. The antenna provides the maximum realized gain of 6.2 dBi at 10.89 GHz with endfire radiation pattern. The designed structure can be promoted for microimaging in medical analysis, satellite communication, defense and military applications.
Krishna Chandran P.L., Diptiranjan Samantaray, Anu Mohamed, Chinmoy Saha, and Somak Bhattacharyya
IEEE
This paper proposes a modified Yagi slot antenna with triple bands and enhanced gain for wearable applications. The proposed design consists of a coplanar fed slot microstrip Yagi antenna backed by an AMC substrate and a ground plane which shows an effective triple operational bandwidth. The AMC has been designed to operate at 7.9 GHz and the performance comparisons have been carried out with and without using AMC substrate. The AMC layer comprises 5×7-unit cell array to form the back reflector for Yagi antenna. The proposed antenna exhibits 4.2%, 12% and 1.6% impedance bandwidths corresponding to 2.84 GHz, 7.64 GHz and 9.66 GHz respectively. The overall gain enhancement of about 8 dBi has been achieved and shows end fire characteristics. The proposed antenna with high gain is a potential candidate for RFID, defense and several medical applications.
Soham Ghosh, Sohom Das, Diptiranjan Samantaray, and Somak Bhattacharyya
Wiley
In this article, the performance of a meander‐line‐based microstrip patch antenna with split‐ring resonator (SRR)‐based slots and defected ground is analyzed at the terahertz frequency range. The designed antenna shows a multiband application within a frequency range of 3.77 to 6.60 THz and operates over six different frequencies (viz. 3.83 THz, 4.24 THz, 5.12 THz, 5.50 THz, 5.95 THz, and 6.50 THz). A maximum return loss of 37 is achieved over the band of 5.85 to 6.18 THz, while a maximum realized gain of 7.54 dBi and a total efficiency of 54% is obtained at 4.24 THz. The ground and radiating elements of the antenna are made of gold. Silicon dioxide is used as a substrate material. The antenna simulation is performed and reported in this study. The proposed antenna finds its applications in the detection of colon cancer, skin cancer, brain tumor, drug detection, and communication fields for point‐to‐point communication purposes.