Journal ArticleDOI
Dual-Band Circularly Polarized Split Ring Resonators Loaded Square Slot Antenna
TLDR
In this article, a dual-band circularly polarized (CP) microstrip line fed slot antenna using a set of split ring resonators (SRRs) is proposed in this communication.Abstract:
A dual-band circularly polarized (CP) microstrip line fed slot antenna using a set of split ring resonators (SRRs) is proposed in this communication. Outer ring connected SRRs are placed on the back side of the slot to create the CP upper band. Diagonally opposite corners of the slot are truncated, which together with the SRRs give CP response in the lower band. The proposed dual-band CP antenna provides design flexibility to control the resonance frequency and sense of polarization at the dual bands, independently. The proposed antenna is designed to operate at 3.1 and 4.7 GHz, which is fabricated and tested. The experimental results show the −10-dB impedance bandwidths of 400 MHz in both the bands and the 3-dB axial ratio bandwidth of 3.1% (from 3.05 to 3.15 GHz) and 4.2% (from 4.65 to 4.85 GHz) in lower and upper bands, respectively. Finally, a metallic cavity is used with the antenna to achieve a unidirectional radiation pattern with front-to-back ratio of more than 15 dB without affecting the impedance bandwidth and CP performance of the antenna.read more
Citations
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Journal ArticleDOI
Dual polarized triple band hybrid MIMO cylindrical dielectric resonator antenna for LTE2500/WLAN/WiMAX applications
TL;DR: In this paper, a triple band hybrid multi-input-multi-output MIMO cylindrical dielectric resonator antenna with high isolation is examined, which includes two symmetric folded microstrip line feeding structures along with CDRA at two different ends of substrate.
Journal ArticleDOI
A Triband Circularly Polarized Strip and SRR-Loaded Slot Antenna
TL;DR: In this article, a simple and compact multiband circularly polarized (CP) slot antenna loaded with metallic strips and a split-ring resonator (SRR) is proposed, which allows independent tuning of different bands via the use of the tilted strips and the SRR.
Journal ArticleDOI
Dual wideband circular polarized CPW-fed strip and slots loaded compact square slot antenna for wireless and satellite applications
TL;DR: In this article, a small size coplanar waveguide-fed dual wideband circularly polarized square slot antenna (CPSSA) is presented, which is composed of an inverted C-shaped patch, grounded-L strip, a pair of grounded spiral slots and a horizontal rectangular grounded slot.
Journal ArticleDOI
Resonator-Loaded Multi-Band Microstrip Slot Antennas With Bidirectional Radiation Patterns
TL;DR: In this paper, an approach for designing multi-band microstrip slot antennas is proposed, where multiple resonators are loaded on a conventional micro-strip slot antenna to introduce multiple resonances, and the locations of each resonance can be adjusted by varying the positions and lengths of the loading resonators together with the geometry of the slot.
References
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