A Novel Complementary Slotted Split Ring Resonator Loaded Truncated Arc Patch Antenna With Enhanced Performance

Abstract

This paper proposes a truncated arc patch antenna loaded with a novel complementary slotted split ring resonator (CSlSRR) in the ground plane. The antenna achieves wide bandwidth, circular polarisation (CP), and omnidirectional radiation pattern in the S-band. The electrical size of the antenna is 0.36λ 0 × 0.31λ 0 , and the radiating metal dimension is 0.18λ 0 × 0.21λ 0 (λ 0 corresponds to f 0 = 2.45 GHz). Truncated corners with a semi-circular arc produce CP with the inset feed. The CSlSRR helps in improving the bandwidth and miniaturisation of the antenna. The design achieves a size reduction of 61%. The fabricated antenna exhibits 12.3% impedance bandwidth (IBW), 4.07% axial ratio bandwidth (ARBW), and a maximum gain of 2.476 dBi at 2.75 GHz. The antenna prototype is characterised in an anechoic chamber. The paper carries out a comparison of the measured and simulated results and other reported works in literature.

Electrical Size Reduction of Microstrip Antennas by Using Defected Ground Structures Composed of Complementary Split Ring Resonator

“…Finally, for the fourth group, references [29], [46], and [47] propose lower % PSR values, however higher gain values than that of this study. Among the references discussed in Table III, especially references [12], [25], [32], [45], [46], and [47] offers more complex DGS patterns as compared to this study. As the result, the proposed Antenna C promises an advantage at least on one parameter under interest as compared with the closely related literature.…”

“…In contrary, the second group consists of the studies which promise lower gain values, however higher % ESR [27,30,32]. The third group consists of the studies which promise both lower gain and lower % ESR [18,45]. It is important to note that references [32] and [45] applied some major geometrical modifications on the metallic patch in addition to DGS structure.…”

“…The third group consists of the studies which promise both lower gain and lower % ESR [18,45]. It is important to note that references [32] and [45] applied some major geometrical modifications on the metallic patch in addition to DGS structure. Especially, the modifications made by reference [32] in their final design increased the area of the radiating element which may be a handicap in the concern of ESR and PSR.…”

“…ECENTLY together with the increasing demand for mobile communication systems, designing planar small antennas have become important and popular . In literature, the common methods of electrical size reduction (ESR) are using a substrate material with a high dielectric constant [1], using inductive and dielectric loadings [2,3,54], using magneto-dielectric materials [4,55], using metamaterial-based structures [5][6][7][8][9]55], using shorting pins [2,10,54] and finally using defected ground structures (DGSs) [44][45][46][47][48][49][50][51][52][53].…”

Super-Wideband Antenna with Multiple Notched-Band Functionality Through L-X Bands

“…Numerous techniques have been employed in the development of antennas to block unwanted frequencies. Examples of various techniques to do this reported in literature include the use of split-ring resonators (SRR) [5,6], complementary split-ring resonators (CSRR) [7], open-loop resonators [9] and discreet filters [9]. The use of discrete filters is undesirable as it introduces an additional component which increases the size of the antenna.…”