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In this paper, a reconfigurable triple notched-band UWB (Ultra Wide Band) antenna is presented. This compact antenna covers the frequency range from 3.1 GHz to 11.21 GHz. In order to reject a three frequency bands including the WiMAX (3.2–3.6 GHz), WLAN (5.15–5.85 GHz) and X band (7.25–8.395 GHz), we have inserted three different slots in the radiating patch; two C-shaped slots and a rectangular slot...
The main objective of the present study is to achieve the reconfigurability of a cylindrical dielectric resonator antenna (CDRA). The CDRA is excited with two different modes; the HEMjjg mode is excited via an aperture etched on the ground under the center of the CDRA, where the TM01δ mode is excited from an etched slot under the side of the CDRA, the reconflgurabilty is realized using two PIN diodes...
In this article, a frequency reconfigurable fractal patch antenna using pin diodes is proposed and studied. The antenna structure has been designed on FR-4 low-cost substrate material of relative permittivity εr = 4.4, with a compact volume of 30×30×0.8 mm3. The bandwidth and resonance frequency of the antenna design will be increased when we exploit the fractal iteration on the patch antenna. This...
In this paper, a single cylindrical dielectric resonator antenna (CDRA) is designed and proposed for multi-input multi-output (MIMO) wireless communications. The proposed antenna is excited from two ports and operated around the same frequency 1.9 GHz, suitable for the 33 and 35 LTE bands. The proposed design exhibits high isolation between the two ports, with a transmission coefficient less than...
The cylindrical geometry can offer certain desirable antenna characteristics that are not provided by planar elements. In this paper a conformal omni-directional circular disc antenna which is mounted on a cylindrical surface feeding by a microstrip line is presented and proven to operate equally well compared to its planar rival. The return losses and the radiation pattern characteristics of the...
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