A Compact Reconfigurable Multi-mode Resonator-based Multi-band Band Pass Filter for Intelligent Transportation Systems Applications

  • Shivesh Triapthi Indian Institute of Technology Roorkee
  • Nagendra Prasad Pathak Indian Institute of Technology Roorkee
  • Manoranjan Parida Indian Institute of Technology Roorkee
Keywords: Bandpass filter, Hemi-circular flower shaped, ITS, Multimode resonator, Multiband

Abstract

A compact wide band reconfigurable bandpass filter (BPF) which utilises a hemi-circular flower shaped multimode resonator (MMR) is presented. The proposed MMR provides three resonant modes which fall within the broad frequency spectra. Among these, two modes are even and one is odd. These modes are optimised by varying the dimensions so as to obtain the desired frequency response. The fractional bandwidth is more than 96 per cent. The filter can be operated as multi-band BPF. In OFF condition of ‘Pin’ diode, the centre frequencies are 2.43 GHz, 3.5 GHz, and 5.9 GHz in ON condition of ‘Pin’ diode centre frequencies are 2.43 GHz, 3.5 GHz, 5.9 GHz, 6.5 GHz, and 8.8 GHz which are used for vehicular, WiMAX, intelligent transportation systems and satellite communication respectively. Microstrip filter structures are integrated with ‘Pin’ diodes. Appropriate biasing has been provided by choosing lumped components with precise values. The insertion loss in OFF condition are 0.5 dB, 0.67 dB, and 0.8 dB and in ON condition 0.5 dB, 0.7 dB, 1.2 dB, and 1.9 dB. The measured results agree well with the full-wave simulated results.

Author Biographies

Shivesh Triapthi, Indian Institute of Technology Roorkee
Mr Shivesh Tripathi, has completed BTech (Electronics and Comm. Engg.) and MTech (Electronics and Communication) and currently pursuing his PhD in Department of Electronics & Communication Engineering, Indian Institute of Technology, Roorkee. India. His current areas of research are microwave and millimeter wave technology, microstrip antennas, MIMO/ diversity antennas for 5 G application, RF integrated circuits and systems, software defined radios and intelligent transportation systems.
Nagendra Prasad Pathak, Indian Institute of Technology Roorkee
Dr N.P. Pathak, received BTech (Electr. & Tel. Engg.) and MTech (Electronics Engg.) from University of Allahabad, in 1998 and 1996 respectively and completed his PhD from Indian Institute of Technology Delhi, in 2005. Currently he is working as Associate Professor in the Department of Electronics & Communication Engineering, Indian Institute of Technology Roorkee, India. He has published more than 135 paper in Def. SCI. J., Vol. 68, No. 6, november 2018 552 journals and conferences, co-author of a book (CRC press), three book chapters and has one US patent to his credit. His current research interests are: RF-THz integrated circuits, systems and sensors; Plasmonics, Advanced functional materials for tuneable RF-THz integrated circuits.
Manoranjan Parida, Indian Institute of Technology Roorkee
Dr M. Parida received his PhD from University of Roorkee (now Indian Institute of Technology Roorkee), in 1995. He is working as Professor in Civil Engineering Department and Dean (Sponsored Research and Industrial Consultancy) at IIT Roorkee. He has contributed over 331 research paper in Journals and Conference Proceedings. He has published chapters in Two Book. His areas of research specialisation include : Intelligent transportation systems, urban transportation planning, traffic safety.
Published
2018-10-31
How to Cite
Triapthi, S., Pathak, N., & Parida, M. (2018). A Compact Reconfigurable Multi-mode Resonator-based Multi-band Band Pass Filter for Intelligent Transportation Systems Applications. Defence Science Journal, 68(6), 547-552. https://doi.org/10.14429/dsj.68.12769
Section
Electronics & Communication Systems