A miniaturised monopole wideband antenna with reconfigurable band rejection for WLAN/WiMAX
Elfergani, Issa T. Hussaini, Abubakar S. See, Chan H. Rodriguez, Jonathan Marques, P.
Elfergani, Issa T.
Hussaini, Abubakar S.
See, Chan H.
Rodriguez, Jonathan
Marques, P.
Publication Date
2015
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Abstract
This paper proposes a tuneable band-rejected miniaturised monopole antenna. The band-notching was achieved by printing an inner chorded crescent shape over the surface of the substrate. By placing a small varactor between the inner and outer arches, the centre frequency of each notch can be individually shifted downwards. The design of the proposed structure has a controllable rejection in the range from 2.38 to 3.87 GHz maintaining a wideband performance from 1.5 to 5 GHz based on VSWR ≤ 2. The antenna prototype was fabricated and tested. Simulated and measured results are performed and analysed. With a compact size, the proposed monopole antenna may well work as an internal antenna in a portable device.
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Elfergani I, Hussaini AS, See CH et al (2015) A miniaturised monopole wideband antenna with reconfigurable band rejection for WLAN/WiMAX. In: Mumtaz S, Rodriguez J, Katz M et al (Eds) Wireless Internet. Cham, Switzerland: Springer: 298-304.
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