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A dielectric resonator (DR) based circularly polarized multi‐input‐multi‐output (MIMO) antenna is studied in this article for wireless local area network (WLAN) applications. In this work, two self‐complementary L‐shaped dielectric resonators are used as two radiators and each radiator is excited by a 50 Ω coaxial probe feed network. The position of the feed network is selected in such a way that it directly generates a pair of orthogonal modes inside the DR. Along with this, diversity in the radiated beam direction is observed to provide low field correlation and a defected ground structure (DGS) is implemented to provide low inter‐port correlation. Experimental test results show that the proposed MIMO structure possesses a 10‐dB impedance bandwidth of 15.6% (5.2‐6.08 GHz) and a 3‐dB axial ratio (AR) bandwidth of 7.05% (5.2‐5.58 GHz). Besides, MIMO suitability of the proposed structure is evaluated by means of envelope correlation coefficient (ECC), diversity gain (DG), and channel capacity loss (CCL).

This work presents a four‐element, eight‐port cylindrical dielectric resonator antenna (cDRA) with multi‐directional pattern diversity for wireless access point applications. Initially, a dielectric resonator is fed by two different feeding techniques to create two simultaneous orthogonal patterns. This primary radiator is combined with similar radiators in a cross‐configuration to obtain an eight‐port multiple‐input‐multiple‐output (MIMO) antenna system. The antenna elements are placed in such a way that each radiator of the proposed antenna can radiate in a different direction so that the field correlation between the antenna elements is minimum. The proposed diversity antenna consists of four antenna elements and eight polarised ports. Isolation between the ports is improved by generating orthogonal modes in each cDRA and exciting each cDRA to radiate in a different direction. The similarity in simulated and measured results confirm that the proposed eight‐port diversity antenna is useful for the frequency ranges between 5.6 and 5.9 GHz for wireless local area network (WLAN) applications.

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This article concentrates on the design and analysis of a novel Minkowski fractal‐based antenna design with the aid of triangular dielectric resonator (TDR) elements for wideband wireless applications. TM101z mode is excited inside equilateral TDR antenna with the help of coaxial probe feed. Wide impedance bandwidth has been achieved by reducing the quality factor with the help of increasing surface area‐to‐volume ratio of radiating structure. Another important feature of this article is that recurrence formulas are derived to calculate the fraction of surface area to volume of proposed fractal antenna up to nth iteration. The proposed antenna design is fabricated and measured up to third iteration to verify its simulated outcomes. Practically measured outcome confirms that the proposed antenna design operates over the frequency range, that is, 2.23‐3.1 GHz with the maximum gain of 3.62 dBi. These features make it appropriate for wireless LAN (2.4 GHz) and WiMAX (2.5 GHz) applications.