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Tripathy, Malay Ranjan
Publications (6 of 6) Show all publications
Sarika, ., Tripathy, M. R. & Rönnow, D. (2018). A wideband frequency selective surface reflector for 4G/X-Band/Ku-Band. Progress In Electromagnetics Research C, 81, 151-159
Open this publication in new window or tab >>A wideband frequency selective surface reflector for 4G/X-Band/Ku-Band
2018 (English)In: Progress In Electromagnetics Research C, ISSN 1937-8718, E-ISSN 1937-8718, Vol. 81, p. 151-159Article in journal (Refereed) Published
Abstract [en]

A Frequency Selective Surface (FSS) reflector with wideband response for 4G/X-band/Ku-band is proposed. The wideband FSS reflector consists of cascaded dual-layer patch FSS which is etched on separate layers of FR4 substrate. The targeted frequency range is 5–16 GHz. A wide stopband of 10.4 GHz (100% percent bandwidth) is obtained with two layers in cascade. The Equivalent Circuit (EC) method is used to approximate the simulated results. An extensive parametric study is also carried out to understand the effect of various combinations of FSS layers and their disposition. A panel of final FSS is fabricated where measured and simulated results agree well.

Place, publisher, year, edition, pages
Electromagnetics Academy, 2018
Keywords
Equivalent circuits, Reflection, Dual layer, FR4 substrates, Frequency ranges, Frequency selective surface (FSS), Parametric study, Simulated results, Wide band frequencies, Wide stopband, Frequency selective surfaces
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:hig:diva-26241 (URN)2-s2.0-85042380788 (Scopus ID)
Available from: 2018-03-15 Created: 2018-03-15 Last updated: 2018-04-25Bibliographically approved
Kumar, R., Tripathy, M. R. & Rönnow, D. (2018). Multi-resonant Bowtie Antenna with Modified Symmetric SRR for Wireless Applications. IETE Journal of Research
Open this publication in new window or tab >>Multi-resonant Bowtie Antenna with Modified Symmetric SRR for Wireless Applications
2018 (English)In: IETE Journal of Research , E-ISSN 0974-780XArticle in journal (Refereed) Epub ahead of print
Abstract [en]

A modified symmetric split ring resonator (MSSRR) loaded bowtie antenna with multi-band features over a range of 1.6–7.1 GHz is proposed in this paper. The antenna is designed on FR4 substrate with relative permittivity εr = 4.1 and thickness 1.5 mm. The fabricated antenna size is 40 mm × 58 mm. The Modified Symmetric SRR used beneath the substrate is novel and consists of two circles that are broken into four quarter circles by four rods. The effect of MSSRR location and its geometry is investigated and analysed thoroughly. The measurement results of the fabricated antenna are in good agreement with the simulation results, which confirms the proposed antenna design’s properties. ANSYS High Frequency Structural Simulator (HFSS) software is used for simulating the antenna.

Place, publisher, year, edition, pages
Taylor & Francis Group, 2018
Keywords
Antenna, Bowtie, HFSS, Meta-material, Radiation pattern, SRR, Antennas, Computer software, Geometry, Microwave antennas, Ring gages, Wireless telecommunication systems, Bow tie, Bow-tie antennas, High frequency HF, Quarter circles, Relative permittivity, Split ring resonator, Wireless application, Directional patterns (antenna)
National Category
Signal Processing
Identifiers
urn:nbn:se:hig:diva-27359 (URN)10.1080/03772063.2018.1479663 (DOI)2-s2.0-85048508061 (Scopus ID)
Available from: 2018-06-25 Created: 2018-06-25 Last updated: 2019-01-08Bibliographically approved
Choudhary, V., Gupta, A., Tripathy, M. R. & Rönnow, D. (2017). A compact multi-band slotted circular patch MIMO antenna with defective ground surface for wireless application. In: 2017 4th International Conference on Signal Processing and Integrated Networks (SPIN): . Paper presented at 4th International Conference on Signal Processing and Integrated Networks (SPIN), 2-3 February 2017, Noida, India (pp. 33-37). IEEE conference proceedings, Article ID 8049911.
Open this publication in new window or tab >>A compact multi-band slotted circular patch MIMO antenna with defective ground surface for wireless application
2017 (English)In: 2017 4th International Conference on Signal Processing and Integrated Networks (SPIN), IEEE conference proceedings, 2017, p. 33-37, article id 8049911Conference paper, Published paper (Refereed)
Abstract [en]

A compact multi band slotted two elements MIMO antenna is designed on FR4 substrate with the dimensions 60×60×1.5 mm3 and an εr of 4.4. To achieve high isolation between the radiation elements, a Defected Ground Surface (DGS) technique is applied. The isolation between the elements and gain both increased considerably. In the simulated and measured return loss vs frequency results, multi bands are obtained. The maximum isolation is obtained as -36.32 dB at 8.8 GHz in the measured results.

Place, publisher, year, edition, pages
IEEE conference proceedings, 2017
Keywords
defected ground structures;microstrip antenna arrays;multifrequency antennas;DGS;FR4 substrate;compact multiband slotted circular patch MIMO antenna;defective ground surface;Antenna measurements;Antennas;Frequency measurement;Gain;Loss measurement;MIMO;Wireless communication;Circular patch;DGS;MIMO and High Isolation
National Category
Signal Processing
Identifiers
urn:nbn:se:hig:diva-25432 (URN)10.1109/SPIN.2017.8049911 (DOI)000426076800008 ()2-s2.0-85032832615 (Scopus ID)978-1-5090-2797-2 (ISBN)
Conference
4th International Conference on Signal Processing and Integrated Networks (SPIN), 2-3 February 2017, Noida, India
Available from: 2017-10-19 Created: 2017-10-19 Last updated: 2018-03-20Bibliographically approved
Tripathy, M. R., Kumar, R. & Rönnow, D. (2015). Design and Analysis of Metafractal Antenna for Wireless Applications. In: PIERS 2015 Prague: Progress in Electromagnetics Research Symposium : Proceedings. Paper presented at Progress in Electromagnetics Research Symposium, 6-9 July 2015, Prague, Czech Republic (pp. 2376-2380). Cambridge, MA: The Electromagnetics Academy
Open this publication in new window or tab >>Design and Analysis of Metafractal Antenna for Wireless Applications
2015 (English)In: PIERS 2015 Prague: Progress in Electromagnetics Research Symposium : Proceedings, Cambridge, MA: The Electromagnetics Academy , 2015, p. 2376-2380Conference paper, Published paper (Refereed)
Abstract [en]

In this paper, a new design of metafractal antenna is proposed. The dimensionof the patch is 44 £ 44mm2 and the FR4 substrate is used for this. The fractal antenna withmetamaterial ground plane is used for di®erent iterations. The results show that with the increaseof the number of iterations the bandwidth is increased. In the case of higher iterations for somefrequency bands return loss results are improved but for other frequency bands these are degraded.

Place, publisher, year, edition, pages
Cambridge, MA: The Electromagnetics Academy, 2015
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:hig:diva-20686 (URN)2-s2.0-84947271868 (Scopus ID)978-1-934142-30-1 (ISBN)
Conference
Progress in Electromagnetics Research Symposium, 6-9 July 2015, Prague, Czech Republic
Available from: 2015-11-27 Created: 2015-11-27 Last updated: 2018-03-13Bibliographically approved
Rönnow, D., Shahbazali, M., Baki, W. & Tripathy, M. R. (2015). Effect on Lefthandedness from SRR Rotational Disorder. In: PIERS 2015 Prague: Progress in Electromagnetics Research Symposium : Proceedings. Paper presented at Progress in Electromagnetics Research Symposium, 6-9 July 2015, Prague, Czech Republic (pp. 2372-2375). Cambridge, MA: The Electromagnetics Academy
Open this publication in new window or tab >>Effect on Lefthandedness from SRR Rotational Disorder
2015 (English)In: PIERS 2015 Prague: Progress in Electromagnetics Research Symposium : Proceedings, Cambridge, MA: The Electromagnetics Academy , 2015, p. 2372-2375Conference paper, Published paper (Refereed)
Abstract [en]

The split ring resonator (SRR) is the key element to obtain left handedness at microwave frequencies. The orientation of the SRR relative to the electromagnetic field is decisive for achieving lefthandedness. We investigate by simulations how the lefthandedness is affected by rotational disorder of the SRRs in an array of 2 x 11 SRRs. Rotational disorder of the inner ring has a minor effect on the lefthandedness. Combined rotational disorder of inner and outer ring has a similar effect as rotational disorder of the outer ring only. Rotational disorder causes a shift in the frequency range of lefthandedness.

Place, publisher, year, edition, pages
Cambridge, MA: The Electromagnetics Academy, 2015
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:hig:diva-20688 (URN)2-s2.0-84947225599 (Scopus ID)
Conference
Progress in Electromagnetics Research Symposium, 6-9 July 2015, Prague, Czech Republic
Available from: 2015-11-27 Created: 2015-11-27 Last updated: 2018-03-13Bibliographically approved
Kumar, R., Tripathy, M. R. & Rönnow, D. (2015). Multi Band Metamaterial Based Bowtie Antenna for Wireless Applications. In: PIERS 2015 Prague: Progress in Electromagnetics Research Symposium : Proceedings. Paper presented at Progress in Electromagnetics Research Symposium, 6-9 July 2015, Prague, Czech Republic (pp. 2368-2371). Cambridge, MA: Electromagnetics Academy
Open this publication in new window or tab >>Multi Band Metamaterial Based Bowtie Antenna for Wireless Applications
2015 (English)In: PIERS 2015 Prague: Progress in Electromagnetics Research Symposium : Proceedings, Cambridge, MA: Electromagnetics Academy , 2015, p. 2368-2371Conference paper, Published paper (Refereed)
Abstract [en]

A new meta-material based bowtie antenna is proposed in this paper. Multi band response is observed in the simulated result of return loss for different frequencies (i.e., 1-12GHz). Apart from this it is seen that the return loss is improved in the case of metamaterial antenna in comparison to the conventional antenna. Simulated results of ζ and μ versus frequency are shown and it is observed that negative ζ and negative μ are obtained in different frequency bands respectively.

Place, publisher, year, edition, pages
Cambridge, MA: Electromagnetics Academy, 2015
Series
Progress in Electromagnetics Research Symposium, ISSN 1559-9450
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
urn:nbn:se:hig:diva-20687 (URN)2-s2.0-84947284160 (Scopus ID)978-1-934142-30-1 (ISBN)
Conference
Progress in Electromagnetics Research Symposium, 6-9 July 2015, Prague, Czech Republic
Available from: 2015-11-27 Created: 2015-11-27 Last updated: 2018-06-04Bibliographically approved
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