A multiband reconfigurable slot antenna for wireless applications

Ali, Tanweer and Khaleeq, Mohammed Muzammil and Biradar, Rajashekhar C (2018) A multiband reconfigurable slot antenna for wireless applications. AEU - International Journal of Electronics and Communications, 84. pp. 273-280. ISSN 14348411

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This research presents a novel four band frequency reconfigurable antenna for 1.6 (Global Navigation Satellite system (GNSS)), 2.5 (Lower Worldwide Interoperability for Microwave Access (WiMAX)), 5.8 (Wireless local area network (WLAN)) and 9.8 GHz (X-band) frequency bands. The antenna has a compact size of at lower resonance of 1.8 GHz and is printed on FR4 material with height (h)=1.6mm, dielectric constant ((εr) = 4.4 and loss tangent (δ) = 0.02. Multiband phenomenon in the antenna is achieved by etching trapezoidal slot in the radiating monopole and rectangular slots in the ground plane. Frequency reconfiguration in the proposed structure is achieved by placing PIN diode switch between rectangular slot placed in the ground plane. During OFF state, the antenna exhibit quad band with S11 < −10 dB bandwidth of about 11.1% (1.7–1.9 GHz), 10.52% (2.7–3.0 GHz), 5.52% (5.6–5.9 GHz) and 9.3% (9.2–10.1 GHz) under simulation and of about 6.06% (1.6–1.7 GHz), 11.76% (2.4–2.7 GHz), 3.44% (5.7–5.9 GHz) and 6.25% (9.3–9.9 GHz) in measurement respectively. During ON state of PIN diode, the antenna operates at dual bands (5.8 and 9.5 GHz) with S11 < −10 dB bandwidth of about 3.44% (5.7–5.9 GHz) and 7.65% (8.8–9.5 GHz) under simulation and of about 8.54% (5.6–6.1 GHz) and 3.17% (9.3–9.6 GHz) in measurement respectively. The antenna exhibits good impedance matching, radiation characteristics and gain across their operational bandwidths.

Item Type: Article
Uncontrolled Keywords: Multiband, Slots, Recon?guration,Current distribution, PIN diode
Subjects: Engineering > MIT Manipal > Electronics and Communication
Depositing User: MIT Library
Date Deposited: 25 Sep 2018 08:59
Last Modified: 25 Sep 2018 08:59
URI: http://eprints.manipal.edu/id/eprint/152048

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