A Circular Slot Antenna with Wide Tunable and Reconfigurable Frequency Rejection Characteristic Using Capacitance Loaded Split-Ring Resonator for UWB Applications

2014 ◽  
Vol 78 (1) ◽  
pp. 137-149 ◽  
Author(s):  
Yingsong Li ◽  
Wenxing Li
Keyword(s):  
Ring Resonator ◽  
Split Ring Resonator ◽  
Slot Antenna ◽  
Split Ring ◽  
Uwb Applications

Design and Analysis of Miniaturized Microstrip Patch Antenna with Metamaterials Based on Modified Split-Ring Resonator for UWB Applications

Frequenz ◽  
2016 ◽  
Vol 70 (11-12) ◽  
Author(s):  
D. Khedrouche ◽  
T. Bougoutaia ◽  
A. Hocini
Keyword(s):  
Patch Antenna ◽  
Ring Resonator ◽  
Federal Communication Commission ◽  
Split Ring Resonator ◽  
Microstrip Patch Antenna ◽  
Ultra Wideband ◽  
Band Spectrum ◽  
Split Ring ◽  
Microstrip Patch ◽  
Uwb Applications

AbstractIn this paper, a miniaturized microstrip patch antenna using a negative index metamaterial with modified split-ring resonator (SRR) unit cells is proposed for ultra-wideband (UWB) applications. The new design of metamaterial based microstrip patch antenna has been optimized to provide an improved bandwidth and multiple frequency operations. All the antenna performance parameters are presented in response-graphs. Also it is mentioned that the physical dimensions of the metamaterial based patch antenna are very small, which is convenient to modern communication. A 130 % bandwidth, covering the frequency band of 2.9–13.5 GHz, (for return loss less than or equal –10 dB) is achieved, which allow the antenna to operate in the Federal Communication Commission (FCC) band. In addition, the antenna has a good radiation pattern in the ultra-wide band spectrum, and it is nearly omnidirectional.

scholarly journals A Multi-Band U-Strip and SRR Loaded Slot Antenna with Circular Polarization Characteristics

2020 ◽  
Vol 9 (1) ◽  
pp. 41-48
Author(s):  
P. M. Paul ◽  
K. Kandasamy ◽  
M. S. Sharawi
Keyword(s):  
Circular Polarization ◽  
Ring Resonator ◽  
Axial Ratio ◽  
Split Ring Resonator ◽  
Slot Antenna ◽  
Impedance Bandwidth ◽  
Split Ring ◽  
Circularly Polarized ◽  
Polarization Characteristics ◽  
Good Agreement

A compact multiband circularly polarized slot antenna is proposed here. An F-shaped microstrip feedline is used to excite the square slot antenna loaded with a U-shaped strip and a split ring resonator (SRR) to generate three circularly polarized bands at 1.5 GHz, 2.75 GHz and 3.16 GHz. A meandered slot is used in the feedline and the U-strip to improve the axial ratio bandwidth (ARBW). The meandered feedline excites the slot to produce resonance at 2.5 GHz. This resonance along with that of the F-shaped feed, loaded SRR and U-strip combine to give rise to three circularly polarized bands which can be tuned depending on the feed, SRR and U-strip dimensions. The orientation of the F-shaped feed decides the sense of polarization of the three circularly polarized bands of the proposed antenna. The proposed antenna is fabricated on a substrate of FR4 material with dimensions 50 x 50 x 1.56 mm3. The antenna is prototyped and measured in terms of impedance bandwidth, ARBW, gain and efficiency. The simulated and measured results show reasonably good agreement.

scholarly journals Filtering wideband slot antenna using split-ring resonator

2019 ◽  
Vol 16 (23) ◽  
pp. 20190647-20190647
Author(s):  
Changhong Wang ◽  
Siyang Sun ◽  
Xiangyuan Bu ◽  
Chaofan Chen ◽  
Fei Gao
Keyword(s):  
Ring Resonator ◽  
Split Ring Resonator ◽  
Slot Antenna ◽  
Split Ring
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