A multiband antenna loaded with metamaterial and slots for GPS/WLAN/WiMAX applications

Ali, Tanweer and Khaleeq, Mohammad Muzammil and Pathan, Sameena and Biradar, Rajashekhar C. (2017) A multiband antenna loaded with metamaterial and slots for GPS/WLAN/WiMAX applications. Microwave and Optical Technology Letters, 60. pp. 79-85. ISSN 0895-2477

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A compact planar four band antenna loaded with metamaterial and slots for GPS, WLAN, and WiMAX applications, is presented in this letter. Initially, a dualband (2.9 and 5.9 GHz) antenna is designed by etching trapezoidal shaped slots in the radiating patch and rectangular shaped slots in the ground plane. In order to make the dual band antenna to operate at more number of bands, two identical metamaterial unit cells are introduced in the ground plane. The introduction of metamaterial creates additional resonance at 1.5 and 5.2 GHz, respectively. The proposed design has a dimension of 0.21k03 0.23k030:01k0 at a lower frequency of 2.4 GHz, and operates at 1.5 (GPS), 2.4, 5.2 (WLAN), and 3.5 GHz (WiMAX) frequency bands, respectively. The proposed metamaterial negative permeability retrieval mechanism through waveguide medium is discussed in detail. The proposed design has measured S11 < 210 dB bandwidth of about 6.06% (1.6–1.7 GHz), 8.33% (2.3–2.5 GHz), 5.55% (3.5– 3.71 GHz), and 5.94% (4.9–5.2 GHz), respectively. Good impedance matching, stable radiation characteristics with low cross-polarization and an average gain of 2.25 dBi, are observed across the operational bandwidths, when the antenna is fabricated and tested.

Item Type: Article
Uncontrolled Keywords: metamaterial, multiband, negative permeability, slots
Subjects: Engineering > MIT Manipal > Electronics and Communication
Depositing User: MIT Library
Date Deposited: 25 Sep 2018 08:43
Last Modified: 25 Sep 2018 08:43
URI: http://eprints.manipal.edu/id/eprint/152038

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