Quad‐port ring dielectric resonator based MIMO radiator with polarization and space diversity

Abstract

In this communication, quad port MIMO antenna is designed and examined. It is designed by ring shaped ceramic material. The main attribute of proposed analysis are: (a) dual radiating modes are created in the ring shaped ceramic resonator, that is, HE 11δ and HE 12δ mode with the assistance of pentagon ring shaped aperture; (b) with the help of polarization and space diversity, the mutual coupling is lower than −20 dB among the ports; and (c) ring shaped ceramics provides better bandwidth performance as compare to cylindrical shaped ceramic. Measured results of fabricated protytpe confirms that the proposed radiator functions over two frequency ranges, that is, 2.45 to 2.75 GHz and 4.8 to 5.75 GHz. The value of ECC is also within the limit. All these features make the radiator applicable for wireless local area network (2.4 GHz) and WiMAX (2.5/5.1 GHz) applications. K E Y W O R D S dielectric resonator antenna, MIMO antenna, multiband antenna, wireless LAN

Circularly Polarized Wideband Ring CDRA for Wireless Applications

“…3. We know that essential condition for the generation of CP wave, two-field components are equal in magnitude and orthogonal to each other [11,12]. In the proposed CDRA, ring-type circular slot behaves as a magnetic dipole, while hook type microstrip lines behave as electric dipole, and orthogonal field components created by the combination of an electric and magnetic dipole.…”

Circularly polarized dielectric resonator‐based multiple input multiple output antenna with pattern and polarization diversity for vehicular applications

“…As a result, the principle of polarization diversity aids in obtaining a higher isolation value. 6 After applying the PEC wall in between two ports, Figure 12 shows the 3D radiation pattern with port-1 and port-2. As can be seen in Figure 12, the DR's Port 1 and Port 2 have beam tilts of À30 and +30 (respectively).…”

“…1 Also, to enhance the gain of the system, Mohammadifar et al have utilized a low profile cavity-type reflector, by targeting radiations in a single, desired direction. 2 In the open literature, researchers are widely focused on getting three important features: (i) generation of multiband/wideband characteristics [3][4][5] ; (ii) isolation enhancement through S-parameter 6,7 ; and (iii) isolation enhancement between different far-field parameters. 8 Sharma et al proposed a two-port hybrid DRA over the areas of multiband applications.…”

“…Isolation between diagonal ports has been enhanced in this antenna design by simply employing the principle of larger distance. 6 Polarization diversity is another technique in this field. In this technique, different polarizations are achieved with different ports.…”

Novel Design of Cylindrical DRA Built MIMO Antenna for 5G Future Prospective Covering (n78/n79) Bands

“…Dielectric resonator-based compact MIMO antenna was first implemented in [8]. Various techniques have been incorporated to enhance the isolation by inserting slits in the ground plane [9], by introducing neutralization lines [10], a high value of separation is achieved when the arrangements of the elements are orthogonal to one another [11]. Limited research work has been done to cover up the entire Sub-6 GHz spectrum.…”