Compact multi-band novel-shaped planar monopole antenna for DCS, Bluetooth, and ultra-wide-band applications

Vijay K. Sambhe; Rahul N. Awale; Abhay Wagh

Compact multi-band novel-shaped planar monopole antenna for DCS, Bluetooth, and ultra-wide-band applications

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Author(s): Vijay K. Sambhe¹ ; Rahul N. Awale¹ ; Abhay Wagh¹
- Affiliations: 1: Department of Electrical Engineering , Veermata Jijabai Technological Institute , Mumbai , India
Source: Volume 2016, Issue 5, May 2016, p. 119 – 123
DOI: 10.1049/joe.2015.0160 , Online ISSN 2051-3305

This is an open access article published by the IET under the Creative Commons Attribution-NonCommercial-NoDerivs License (http://creativecommons.org/licenses/by-nc-nd/3.0/)

Received 09/10/2015, Accepted 05/11/2015, Published 11/12/2015

In this study, simple and compact novel-shape planar monopole antenna for multi-band operation such as DCS, Bluetooth, and ultra-wide-band (UWB) is proposed. Proposed antenna comprises of circular ring with extended rectangular monopole antenna in one of the arm of the circular ring and inverted L-shape monopole antenna at the centre of the structure is placed to generate multiple resonances at different frequencies. In this structure, Bluetooth frequency band generates due to extended rectangular patch, DCS band by inverted L-patch, and UWB bands due to circular ring. Easily available FR4 substrate with permittivity 4.4 and loss tangent 0.02 is used for fabrication with antenna dimensions (35.5 × 24.5 × 1.6) mm³. Antenna structure is fed through 50 Ω micro-strip line and terminated by SMA connector. Measured return loss of the antenna is ≤−10 dB with effective control over the three operating frequency bands. In addition, some selected key parameters which affect the impedance bandwidth are analysed and results are discussed.

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Compact multi-band novel-shaped planar monopole antenna for DCS, Bluetooth, and ultra-wide-band applications

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