AYAN CHATTERJEE
@uem.edu.in
Associate Professor, Department of ECE
University of Engineering and Management, Kolkata
RESEARCH INTERESTS
Frequency Selective Surfaces, Periodic Structures, Slot Antenna, Wide-band Printed Antennas
Scopus Publications
Scopus Publications
Surajit Kundu, Dheeraj Pandey, and Ayan Chatterjee
Elsevier BV
Rimi Sengupta, Ayan Chatterjee, Soumen Banerjee, and Monojit Mitra
IEEE
A low profile circular SIW based cavity-backed antenna with Complementary Split Ring - shaped slot is designed at 5.33 GHz with a narrow bandwidth of 10 MHz. Studies are performed to obtain S11 and gain leading to values of -25 dB and 2.7 dBi respectively. Gain is augmented to 6.2 dBi on placing a multi-layer FSS over the antenna. A comparative study on composite antenna-FSS structure is performed followed by fabrication.
Surajit Kundu and Ayan Chatterjee
Elsevier BV
Surajit Kundu and Ayan Chatterjee
Elsevier BV
Anirban Chatterjee, Soumya Naskar, Siddhid Das, Tohit Bhowmick, and Ayan Chatterjee
IEEE
A Frequency Selective Surface (FSS) with dual-band bandpass response at 2.4 GHz and 5.2 GHz is proposed in this paper. The proposed FSS unit cell consists of two circular ring slots loaded with metallic splits for the purpose of fine tuning of the transmission poles. The FSS exhibits −3 dB bandwidths of 0.68 GHz and 0.63 GHz in the first and second passbands respectively. The FSS exhibits lower insertion loss of around 0.25 dB in both the passbands. A detail study of effect of the split gap on the response of the dual-band FSS is also presented in the paper. The FSS is suitable for various applications in the ISM band.
Atul Shaw, Sayanta Dutta, Injamamul Haque, Rahul Sil, Upasana Mondal, and Ayan Chatterjee
IEEE
Reflective Frequency Selective Surfaces (FSS) with square loop shaped patches loaded with splits are proposed for multiband applications. A FSS with dual band response is proposed followed by another design with triple band response. The FSS unit cell designs differ in number of loops with splits. The triple band FSS exhibits stop bands near 2.4 GHz, 4.8 GHz, 8.8 GHz with adequate -10 dB bandwidths of 0.31 GHz, 0.55 GHz and 1.14 GHz respectively. Such response makes the FSS suitable for ISM band, C band X band applications. Various orientations of the split loaded loops are also studied and the studies are presented in the paper.
Rimi Sengupta, Ayan Chatterjee, Monojit Mitra, and Soumen Banerjee
Informa UK Limited
In this paper, a low profile circular-shaped cavity-backed substrate integrated waveguide (SIW) antenna is designed and fabricated to operate at 5.38 GHz frequency in the U-NII-2B band in the dominant TM010 mode. A narrow cross-shaped slot is inserted in the ground plane of the parent antenna for radiation purposes. The antenna produces a gain of 4.7 dBi with an impedance bandwidth extending from 5.36–5.42 GHz. The gain of the antenna is augmented to 7.1 dBi through the use of a multi-layered cascaded frequency selective surface (FSS) as a superstrate. Arlon substrate materials are used to fabricate the antenna and frequency selective surface respectively. Parametric studies have been carried out in terms of return loss, antenna gain, and spacing between the antenna and FSS layer to obtain the best antenna results. All the simulation results have been carried out using HFSS v19.0. Both the simulated and the experimentally measured results show alike behavior.
Ayan Chatterjee, Soumen Banerjee, Jaroslav Frnda, and Marek Dvorsky
Institute of Electrical and Electronics Engineers (IEEE)
In this paper, two planar Frequency Selective Surfaces (FSS) with dissimilar configurations along with monopole antenna exhibiting dual-band response at 3 GHz and 5.5 GHz is presented. One of the surfaces with two reflectors is reflective at 5.5 GHz and transmissive at 3 GHz, whereas the response is opposite for the FSS in another flat reflector. Accordingly the antenna exhibits directive radiation at both the frequencies, however in two opposite directions. Unit cell of the FSS at 3 GHz is on the order of <inline-formula> <tex-math notation="LaTeX">$\\lambda _{\\mathrm {g}}$ </tex-math></inline-formula>/11, leading to low-profile design. With different orientations of the reflectors, beamwidths at 3 GHz and 5.5 GHz are different leading to different peak gains of 7.1 dBi and 12.2 dBi respectively. The composite antenna-FSS with a dimension on the order of <inline-formula> <tex-math notation="LaTeX">$1.1\\lambda \\times 1.1\\lambda \\times 0.2\\lambda $ </tex-math></inline-formula> exhibits diverse beam radiation. The radiation at 3 GHz can be used in applications involving wide coverage area, whereas at 5.5 GHz the antenna can be used in applications involving smaller beamwidths such as satellite communication, Ground Penetrating Radar etc.
Suparna Ballav, Ayan Chatterjee, and Susanta K. Parui
Wiley
Gain augmentation of a dual‐band antenna with different bandwidths using superstrate is presented in this paper. Initially, the dual‐band radiator is designed using a rectangular dielectric resonator (DR). The fundamental mode TE111 of the rectangular DR resonates at 3 GHz over a narrowband (BW = 5.08%). The upper wideband (BW = 20% with center frequency 5.86 GHz) is obtained by the amalgamation of two hybrid modes with higher‐order TE113 mode. The dielectric waveguide model is used for the theoretical analysis of two radiating modes of the rectangular DR. Further, a dual‐band frequency selective surface with bandpass response is designed and loaded as a superstrate above the DR antenna for gain improvement in both the bands, which leads to a gain augmentation of 1.8 dBi and upto 3.5 dBi in the lower and upper band respectively. At last, the proposed design is implemented practically, and measurement results are portrayed to compare with simulation results that agree reasonably well.
Surajit Kundu and Ayan Chatterjee
Springer Science and Business Media LLC
SURAJIT KUNDU, AYAN CHATTERJEE, and AMJAD IQBAL
Springer Science and Business Media LLC
A. N. Biswas, S. Ballav, A. Chatterjee, and S. K. Parui
Brno University of Technology
This paper focuses on two different design flows of how an ultra-wideband FSS can be achieved from a narrowband structure. By amalgamating a capacitive patch with a corrugated square slot structure, as the first approach while the second approach involved designing a dual layer FSS by etching the corrugated square slot at both top and the bottom layer of the substrate. A 98% bandwidth extending from 5.5 GHz to 16 GHz was achieved using the first approach while the modified structure yields about 107% bandwidth covering up the entire range from 5 GHz to 16.5 GHz, hence improving the performance in terms of bandwidth. The final modified FSS structure manifests the polarization insensitive nature as well as angle insensitivity up to 60° angle of incidence in terms of the entire range of the wide reflection band, and covering all the three bands (C, X and Ku band). The transmission coefficient manifests a stable response below 20 dB almost throughout the entire band without significant variation. The measured result shows good agreement with the experimented result validating the fabricated prototype and measurement. The bandwidth can be tuned by varying different parameters like corrugation dimension, dielectric permittivity, substrate height which have been explained in this paper.
Rajanikanta Swain, Ayan Chatterjee, Sambhudutta Nanda, and Rabindra Kishore Mishra
Springer Science and Business Media LLC
Bappaditya Mandal, Ayan Chatterjee, Pramod Rangaiah, Mauricio D. Perez, and Robin Augustine
IEEE
In this article, a button antenna with a reflective frequency selective surface(FSS) is proposed to reduce its back radiation. The proposed antenna is low in profile, circularly polarized and designed for Wi-Fi and WLAN applications. The radiating element is made of copper sheet, while a transparent acrylic fibre sheet is used as a substrate. The antenna is fed by a coaxial line, and the FSS layer is designed onjeans material. The patch type FSS with split ring shape has also been designed to operate in the Wi-Fi and WLAN frequency band (5.250–5.S50 GHz) with the centre frequency of 5.51 GHz. The FSS reduces back radiation of the antenna by 4 dB. The antenna with FSS is fabricated, and a measured gain of 2. 9dBi is obtained that matches well with the theoretical value. The antenna is miniaturized by around 61.15% by the slits. To achieve circular polarization characteristic Defected Ground Structure (DGS) slots etched at the ground plane of the triangular patch. The measured impedance bandwidth is 190MHz, and the 3dB axialratio (AR) bandwidth is 160MHz, respectively.
Raj Ratnam, Ambati Hemasree, Somnath Mahato, Surajit Kundu, and Ayan Chatterjee
IEEE
A patch-slot-patch frequency selective surface (FSS) exhibiting bandpass response is proposed in this paper. The FSS unit cell is composed of two cross-dipole shaped patches and a cross-dipole shaped slot in between. The proposed FSS exhibits bandpass response with two closely spaced transmission poles around 3 GHz and 3.5 GHz. A 3-dB transmission bandwidth of upto 20% is achieved for the FSS. The proposed design has a thickness on the order of 0.032 λ0 . The paper presents with parametric studies how the poles can be tuned individually. The transmission phase of the FSS varies linearly towards zero with frequency that makes the FSS useful in designing Filter-Antenna when placed as a superstrate above a broadside radiator.
Ayan Chatterjee and Susanta K. Parui
Wiley
A multilayered cascaded and polarization‐dependent frequency selective surface (FSS) exhibiting dual bandpass frequency response is proposed in this article. The FSS is composed of two metal‐based square patch layers in the two ends and one aperture type layer in the middle, separated by two dielectric substrates. The FSS exhibits bandpass response of third order with two transmission poles in the 5‐6 GHz band and one pole at 2.5 GHz. The passbands are separated well enough with a transmission zero at 3.5 GHz leading to significant out‐of‐band rejection. The structure is ultrathin with the thickness on the order of 0.01λ0 with respect to the lowest resonating frequency. It is shown with parametric studies how the poles can be tuned individually. Principle of operation of the FSS is explained with its equivalent circuit model. Transmission phase of the FSS varies linearly with frequency in the upper band. Simulation result is verified experimentally for the fabricated prototype.
Surajit Kundu and Ayan Chatterjee
IEEE
A simple U-shaped low profile ultra-wideband (UWB) antenna of dimension 0.37λL×0.25λL that offers extensive impedance bandwidth from 3 to 15.4 GHz (135%) is integrated to dual layered compact UWB frequency selective surfaces (FSS) that has unit cell dimension of 0.11λL×0.11λL only. The composite ‘antenna-FSS’ improves the gain variation by 3 dBi on an average in the unaltered antenna bandwidth with maximum gain of 8.6 dBi at 4.7 GHz. The composite ‘antenna-FSS’ structure also provides linearity in transfer function (S21) response and consistency in group delay response while placed in close proximity of a test bed that is made of dry and wet soil layers with a thin metal sheet, buried at mid-level.
Snehasish Saha, Nurnihar Begam, Ayan Chatterjee, Sushanta Biswas, and Partha Pratim Sarkar
Institution of Engineering and Technology (IET)
The authors presented a reconfigurable frequency selective surface (FSS), loaded with light-dependent resistors (LDRs). In this proposed FSS, no biasing circuit is used to control the transmission characteristics. Variation in intensities of the light that falls upon is used as the control parameter for variation of resistance values of LDRs. Thus tunable transmission characteristics of the FSS are achieved. The simulated results show that in the absence of atmospheric light, the FSS has band stop properties at the frequency range of lower S
-band (2–3 GHz) and band pass properties at the frequency range of C
-band (4–8 GHz). On the other hand, in the presence of full bright light, it has stop band properties at the frequency range of C
-band (4–8 GHz). Experimental results are in good agreement with the simulated results. Another novelty about the proposed FSS is the polarisation-independent (TE and TM polarisation) transmission behaviour. The proposed FSS also has a stable transmission behaviour for variation in the incidence angle up to 30°.
Rajanikanta Swain, Rabindra Kishore Mishra, and Ayan Chatterjee
Elsevier BV
Anik Naha Biswas, Suparna Ballav, Ayan Chatterjee, and Susanta Kumar Parui
IEEE
In this paper, a 3 X 3 frequency selective surface (FSS) structure consisting of Jerusalem cross-shaped unit cell has been designed to use it as a superstrate above the helical antenna to mitigate the beamwidth of the main beam of the helical antenna. The designed helix is a wideband right hand circularly polarized antenna with 10 number of turns operating in axial mode. The FSS is placed at a distance of 19 mm above the helix. The main radiated beam of the helix possesses a beamwidth of 40 degree which constricts to 26 degrees after placing the FSS. The composite structure is operating at 7.93 GHz where a narrower main beam and a satisfactory gain of 12.42 dB can be achieved sustaining the circular polarization. Due to this property, we can use this composite structure as a filter to select a particular frequency (In this paper, it's 7.93 GHz) from a wide 10 dB bandwidth of the helix where we can obtain a circularly polarized radiation pattern with a relatively high Co-Polarization gain and a much narrower main beam.
Anik Naha Biswas, Suparna Ballav, Susanta Kumar Parui, and Ayan Chatterjee
IEEE
In this paper, a low-profile multilayer polarization independent frequency selective surface (FSS) has been presented. The FSS comprises three layers, one four-legged metallic cross at the top surface and another at the bottom surface with one Jerusalem cross in the middle layer. The layers are separated by two dielectric substrates of thickness 0.79 mm. The small thickness of the substrates has made the structure thin and less bulky. The proposed FSS structure exhibits both bandpass and bandstop responses. The structure has been designed to realize two notches in the reflection response at 7.15 GHz and 13.02 GHz evincing bandpass response and a notch in the transmission response at 8.22 GHz manifesting the bandstop response. The proposed multilayered FSS provides a 3 dB transmission bandwidth of 25% at 7.15 GHz and 65.6% at 13.02 GHz, whereas reflection bandwidth of 26.3% is achieved at 8.22 GHz. This multilayer FSS structure exhibits polarization insensitive nature with respect to linear polarization. At 7.15 GHz and 8.22 GHz, the resonant frequency shift remains within 5% with the increase in angle of incidence up to 75°. The higher band at 13.02 GHz does not shift more than 12% for differently polarized waves up to the above mentioned angle of incidence. This FSS can be utilized for allowing a particular frequency band to transmit and shielding the other frequency bands at Ku and C band while it is also used to enhance the gain and directivity of an antenna at X band.
Reshmi Dhara, Sanjay Kumar Jana, Monojit Mitra, and Ayan Chatterjee
IEEE
The present study is related to a Dual-band circularly-polarized (CP) microstrip patch antenna consisting of a single T-shaped radiating patch which consists of a square loop slot on the opposite side of the substrate, and two slotted stubs placed across the diagonal line of the square loop. This configuration is considered for axial ratio bandwidth (ARBW) enhancement. In order to increase the impedance bandwidth (IBW) by a significant amount, the proper dimension of T-shaped has been used. The structure leads to three notches (at <−10 dB) of the bandwidths of 1.32 GHz (8.48-9.78 GHz), 0.71 GHz (10.99–11.7 GHz), and 5.43 GHz (12.21–17.64 GHz) with the corresponding simulated center frequencies of 9.1 GHz, 11.3 GHz, 15.9 GHz respectively. The measured IBW below −10 dB are 7.54-7.98 GHz, 8.74-9.557 GHz, 12.42-14.97 GHz, 16.16 GHz – beyond 20 GHz (as beyond 20 GHz the IBW cannot be measured using our specified VNA). The ARBW are 301 MHz $(\\mathbf{f}_{\\mathbf{c}}=9.5\\ \\mathbf{GRz}, 3.17\\ \\%)$ I and 462 MHz $(\\mathbf{f}_{\\mathbf{c}}=13.1\\ \\mathbf{GRz},\\ 3.53\\%)$ within the range of simulated and measured impedance bandwidth curve. The maximum simulated peak gain is 2.02 dBi at 11.3 GHz. Proposed antenna happens to be suitable for ‘X’ and ‘K’ band wireless communication application.
S S Yatish Pachigolla, Vishesh Dab, Ayan Chatterjee, and Surajit Kundu
IEEE
This article investigates the performance of a compact rectangular microstrip patch antenna of dimension 50×50×1.6 mm3that works in the 2.4 GHz ISM band. The performance of the simply designed antenna with $50\\Omega$ input impedance match by inserting transition in the feed line is compared for two different substrate materials such as FR4 epoxy and Arlon. The antenna designed on FR-4 provides −10 dB impedance band of 2.38 to 2.47 GHz with maximum gain value of 1.75 dBi and poor radiation efficiency of less than 40% whereas the same antenna developed on Arlon substrate can provide improved gain of 4.1 dBi and radiation efficiency of 65% in the −10 dB impedance band from 2.4 to 2.49 GHz. The characteristic of the proposed antenna is also compared with the compatible antennas available in recent literatures.
S. Kundu, A. Chatterjee, S. K. Jana, and S. K. Parui
Brno University of Technology
A compact (27.5 × 16.5 × 0.8 mm) co-planar waveguide fed printed ultra-wideband antenna operating in the impedance band of 1.75–10.3 GHz with two wide frequency notch bands at 2.2–3.9 GHz and 5.1–6 GHz, is introduced. Dual notch is achieved by inserting U-slot on the radiator and with inverted patch shaped downscaled parasitic load at the opposite end of feed line. Maximum antenna gain augmentation by about 5 dBi is achieved without changing the bandwidth, by incorporating a dual layer reflective frequency selective surface (FSS) of dimension 33 × 33 × 1.6 mm below the antenna. The antennaFSS composite structure exhibits maximum radiation in the broadside direction with a peak gain of 9 dBi and an average radiation efficiency of more than 80% in the operating band. Antenna transfer function and group delay are experimentally studied in ground coupling mode of ground penetrating radar (GPR). Linear magnitude response of transfer function and consistent, flat group delay are achieved, that ensure minimal antenna dispersion and its ability for GPR application.
Ayan Chatterjee, Goffar Ali Sarkar, and Susanta Kumar Parui
IEEE
The design of a multilayered bandpass frequency selective surface (FSS)-based wireless filter with narrowband as well as wideband frequency response is presented in this paper. The proposed FSS is designed by cascading two metallic patch type layers with split ring shaped slot and one grid layer with two dielectric substrates in between. The proposed design exhibits second order bandpass response in the 6-7.7 GHz band with two transmission poles at 6.4 GHz and 7.4 GHz and another transmission pole at 3.3 GHz is achieved due to the slots in the patches leading to another passband. The structure is low profile with the horizontal and vertical periodicities of unit cell on the order of λ0/13 with respect to lowest resonating frequency. Transmission phase of the FSS reduces linearly with frequency in the 6-7.7 GHz band which makes it useful for enhancing the broadside radiation of an antenna over wide bandwidth when used as a superstrate above the radiator.