A hexa-band dual-sense circularly polarized antenna for WLAN/Wi-MAX/SDARS and C-band applications

Abstract

In this article, a compact single fed hexa‐band circularly polarized (CP) monopole antenna using split ring resonators (SRRs) on the partial ground plane is designed and experimentally investigated. The loaded SRR elements generate multiple circularly polarized bands along with a reduction in antenna size. The multiband can be controlled by changing the configuration of SRRs and their position on the ground plane without altering the monopole radiator. To illustrate the CP mechanism and multiband operation of the proposed configuration, the surface current density has been studied. The antenna is fabricated on RT Duroid 5880 substrate of permittivity 2.2 with a total size of 47 × 40 × 1.57 mm3. Compared with the existing antenna designs, the proposed structure is compact and demonstrates improved multiband performance with circular polarization.

Design of a compact multiband circularly polarized antenna for global navigation satellite systems and 5G/B5G applications

“…These values are in close agreement to the simulated axial ratio bandwidths of 5.3% at GPS L5 band, 0.7% at GPS L2 band, 0.8% at GPS L1 band, and 0.5% at the 2.3 GHz band. A wider axial ratio bandwidth at the GPS L5 band is due to the presence of two different dielectric substrates . Thickness of the substrate is also a contributing factor toward it, which increases the surface wave efficiency and thus, improving the axial ratio bandwidth in this frequency band.…”

“…Multiband antennas have attracted interest of researchers worldwide. A number of studies have discussed multiband CP and/or linearly polarized (LP) antenna designs with single or multiple feeding points in the open literature . Quadrifiler helixes, annular rings, slotted patches, split ring resonators (SRRs) and stacked patches are some of the popular ways to generate multiple resonances with good CP operation.…”

“…A single‐feed hexa‐band antenna for WLAN/Wi‐MAX/SDARS and C‐band applications has been designed by Alam et al The antenna uses a monopole structure with on the partial ground plane having a total volume of 47 × 40 × 1.57 mm 3 . SRR loading has been used to achieve multiple CP bands.…”

A Miniaturized Circularly Polarized Multiband Antenna for Wi-Max, C-band & X-band Applications

“…With the use of defected ground structure (DGS), broadband can be achieved in a CP antenna [19][20][21]. Split ring resonator [22], C-shaped array [23], C-shaped split ring [24,25], triangle-shaped antenna with tuning…”