Design and realization of novel frequency selective surface loaded dielectric resonator antenna via 3D printing technology

Abstract

One frequently addressed technique for the performance enhancement of radiating elements in the form of microstrip antennas is the utilization of dielectric resonators. A dielectric resonator antenna (DRA) has a conventional structural formation similar to any microstrip patch antenna where, at least, one additional dielectric layer has been placed over the radiating element. In this paper, it is aimed to propose a high performance, easy to prototype, light weight, and low cost DRA in combination with frequency selective surfaces (FSS) for ISM band applications using 3D printing technology. The proposed 3D printed FSS loaded DRA has a measured gain of 5.6 dBi with S11 level less than −10 dB in the operation band between 1.98 and 2.68 GHz. Furthermore, the measured performance of 3D printed antenna is compared with the counterpart alternative antenna designs in the literature for the similar application fields. The novel FSS loaded DRA is not only much smaller than the counterpart antenna designs but also has a moderate gain characteristics which makes the proposed antenna design an optimal RF solution for ISM band wireless communication applications.

Gain Enhancement Using Modified Circular Loop FSS Loaded With Slot Antenna for Sub-6 GHZ 5g Application

“…The maximum gain of the antenna with FSS is about 7.87 dB. Hence, the gain improvement of a slot antenna with a modified circular loop FSS is higher than those given by recently published articles[4,6,[8][9][10] with single and dual-layer FSSs, where other articles[5,7] used higher antenna size or double layer FSS. Gain enhancement comparison between proposed antenna and recently published FSS/metasurface papers.…”

“…In [7], a double-layer passband FSS is used to influence the gain at ISM band placed over microstrip antenna. In [8], the single-layer passband substrate integrated waveguide (SIW)-FSS is loaded to enhance the gain of a microstrip antenna whereas in [9] an FSS combined with a DRA is used for gain enhancement. In [10], double-side single layer FSS incorporated with chip resistor is used for gain enhancement of a DRA in X-band.…”

Stealth design of polarization conversion metasurface antenna array

“…Metamaterial has attracted the attention of researchers due to their outstanding ability to achieve flexible control of electromagnetic wave. [1][2][3][4][5][6][7] As one of the typical structures, polarization conversion metasurface (PCM) [8][9][10][11][12] can achieve an effective phase difference of reflected electromagnetic waves in a specific direction, this metamaterial structure has been widely used in the design of low RCS antennas in recent years [13][14][15][16][17][18][19][20][21][22] based on phase cancellation principle.…”

Higher-Order-Mode Triple Band Circularly Polarized Rectangular Dielectric Resonator Antenna

“…Compared to a single DRA layer, the double-layer DRA fed by a single microstrip feedline successfully enhanced the impedance and AR bandwidth, the far-field characteristic, as well as the antenna gain. There are various techniques that have been proposed recently in the antenna design, for example by introducing frequency selective surface (FSS) [20][21][22], near-field transformation [23] and electromagnetic band gap (EBG) structure [24]. Alternatively, in the DRA antenna, a higher gain can be achieved by exciting the higher mode of the DRA, and this leads to the simplicity of the design.…”