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Wideband Patch Antenna for Land based Vehicles

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Abstract

In this paper, an irregular pentagon shaped patch antenna has been presented. The proposed antenna operates over a wide band in frequency range from 12 to 26 GHz with VSWR < 2. It has a partial ground plane with two-inverted L and one I shaped slots in the radiation patch to attain wide bandwidth. The antenna consists of FR4 epoxy as a dielectric substrate with dielectric constant 4.4 and loss tangent 0.002. The size of the antenna is 30 × 30 × 1.57 mm3 and is fed by the microstrip line. The size of the fabricated proposed antenna is smaller than that of the antenna under reference (elliptical radiating patch with defected ground plane). The simulation has been done using high frequency structure simulator (HFSS) which is a finite element method (FEM) based tool. The proposed antenna exhibits the return loss of 21.85, 28.03 and 29.14 dB and gain of 6.6, 5.67 and 7.0 dB at resonant frequencies 16.7, 19.00 and 21.4 GHz, respectively. The bandwidth of the antenna is 10 GHz with normalized radiation efficiencies of 65, 69 and 70 % at corresponding resonant frequencies. The measured results of the fabricated proposed antenna have been compared with the simulated results and there has been a close agreement between both the results. Also the simulated results of the proposed antenna have been compared with the antenna under reference and it is found that the performance of the proposed antenna is far better. The proposed antenna can be used for land based vehicles in both Ku-band (12–18 GHz) and K-band (18–26 GHz).

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Acknowledgments

The authors are thankful to TEQIP II running in College of Technology, Pantnagar for providing financial support to carry out this work. The special thank is given to IIT, Roorkee for their support during the research work.

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Authors and Affiliations

  1. Department of Electronics and Communication Engineering, College of Technology, Pantnagar, India

    R. P. S. Gangwar & Sanjay Dutt

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  1. R. P. S. Gangwar
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  2. Sanjay Dutt
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Correspondence to R. P. S. Gangwar.

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Gangwar, R.P.S., Dutt, S. Wideband Patch Antenna for Land based Vehicles. J. Inst. Eng. India Ser. B 97, 595–600 (2016). https://doi.org/10.1007/s40031-016-0252-6

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  • DOI: https://doi.org/10.1007/s40031-016-0252-6

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