A Novel Pentagonal Shaped Planar Inverted-F Antenna for Defense Applications

Author(s): Purnima Sharma*, Akshi Kotecha, Rama Choudhary, Partha Pratim Bhattacharya.

Journal Name: Recent Patents on Computer Science

Volume 12 , Issue 2 , 2019

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Graphical Abstract:


Background: The Planar Inverted-F Antenna (PIFA) is most widely used for wireless communication applications due to its unique properties as low Specific Absorption Rate, low profile geometry and easy fabrication. In literature a number of multiband PIFA designs are available that support various wireless applications in mobile communication, satellite communication and radio frequency field.

Methods: In this paper, a miniature sized planar inverted-F antenna has been proposed for dual-band operation. The antenna consists of an asymmetrical pentagonal shaped patch over an FR4 substrate. The overall antenna dimension is 10 × 10 × 3 mm3 and resonates at 5.7 GHz frequency. A modification is done in the patch structure by introducing an asymmetrical pentagon slot.

Results: The proposed pentagonal antenna resonates at 5.7 GHz frequency. Further, modified antenna resonates at two bands. The lower band resonates at 5 GHz and having a bandwidth of 1.5 GHz. This band corresponds to C-band, which is suitable for satellite communication. The upper band is at 7.9 GHz with a bandwidth of 500 MHz. Performance parameters such as return loss, VSWR, input impedance and radiation pattern are obtained and analysed using ANSYS High- Frequency Structure Simulator. The radiation patterns obtained are directional, which are suitable for mobile communication.

Conclusion: The antenna is compact in size and suitable for radar, satellite and vehicular communication.

Keywords: Defense application, PIFA, pentagonal slot, SAR, satellite, radiation.

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Article Details

Year: 2019
Page: [95 - 100]
Pages: 6
DOI: 10.2174/2213275911666181102151149
Price: $58

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