An MIMO Rectangular Dielectric Resonator Antenna for 4G Applications

Design of a Dual-Band Mimo Dielectric Resonator Antenna With Pattern Diversity for Wimax and Wlan Applications

“…It is the amount of improvements obtained from multiple to single antenna systems. The diversity gain can be calculated using DG equation, given in [13]. The value of simulated and measured DG shown in figure 12 at both the bands is almost 10 dB, which ensures good MIMO performance.…”

A bowtie-shaped MIMO dielectric resonator antenna for WLAN applications

“…a coupled aperture for port1 and a coaxial probe for port2, are used to excite TM 22 and TE 21 modes respectively, in the proposed antenna. As compared to the antennas in [8,9,10,11], the proposed bowtie-shaped DRA outperforms in terms of high isolation (25 dB), compact in size, and relatively low ECC (0.00156). Moreover, the proposed design relies on a simple structure and feeding mechanism that is easy to fabricate.…”

“…Both the microstrip feeding lines excite TE 11 mode in the DRA, which exhibits isolation up to 20 dB. In [10] a MIMO rectangular DRA for 4G (LTE) applications was designed. A metallic strip was used for tuning the resonator frequency, which makes the feeding structure complicated.…”

“…The antenna presents isolation about 17 dB. Antennas in [8,9,10,11] either have complicated feeds or have complex structures, low isolation and may have fabrication issues.…”

A Modified Patch Antenna with Square-Open Loop Resonator Slot for Improved Bandwidth Performance in WiFi Applications

“…However, the main barrier of considering these antenna types for a large range of applications is related to their limited bandwidth [3][4][5]. The 'Long Term Evolution' (LTE) and 'Long Term Evolution-Advanced' (LTE-A) new standards for 4G, require large bandwidths (up to 200MHz) and it is expected, that newer standards will require even higher bandwidths [6][7][8][9]. In that respect, several techniques were discussed in the literature, for bandwidth improvement, including changing the feed type, stacking the patch, modifying the geometry of the patch, and changing the feed location [10][11][12][13][14].…”