scholarly journals A Miniaturized Reconfigurable CRLH Leaky-Wave Antenna Using Complementary Split-Ring Resonators

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Damiano Patron ◽  
Yuqiao Liu ◽  
Kapil R. Dandekar
Keyword(s):  
Split Ring Resonator ◽  
Ring Resonators ◽  
Leaky Wave ◽  
Split Ring ◽  
Complementary Split Ring Resonator ◽  
Leaky Wave Antenna ◽  
Wave Antenna ◽  
Varactor Diodes ◽  
Unit Cells ◽  
Pcb Manufacturing

Composite Right-/Left-Handed (CRLH) Leaky-Wave Antennas (LWAs) are a class of radiating elements characterized by an electronically steerable radiation pattern. The design is comprised of a cascade of CRLH unit cells populated with varactor diodes. By varying the voltage across the varactor diodes, the antenna can steer its directional beam from broadside to backward and forward end-fire directions. In this paper, we discuss the design and experimental analysis of a miniaturized CRLH Leaky-Wave Antenna for the 2.4 GHz WiFi band. The miniaturization is achieved by etching Complementary Split-Ring Resonator (CSRR) underneath each CRLH unit cell. As opposed to the conventional LWA designs, we take advantage of a LWA layout that does not require thin interdigital capacitors; thus we significantly reduce the PCB manufacturing constraints required to achieve size reduction. The experimental results were compared with a nonminiaturized prototype in order to evaluate the differences in impedance and radiation characteristics. The proposed antenna is a significant achievement because it will enable CRLH LWAs to be a viable technology not only for wireless access points, but also potentially for mobile devices.

Fundamental-Mode Leaky-Wave Antenna (LWA) Using Slotline and Split-Ring-Resonator (SRR)-Based Metamaterials

2013 ◽  
Vol 12 ◽  
pp. 1424-1427 ◽  
Author(s):  
Gerard Zamora ◽  
Simone Zuffanelli ◽  
Ferran Paredes ◽  
Francisco Javier Herraiz-Martinez ◽  
Ferran Martin ◽  
...  
Keyword(s):  
Fundamental Mode ◽  
Ring Resonator ◽  
Split Ring Resonator ◽  
Leaky Wave ◽  
Split Ring ◽  
Leaky Wave Antenna ◽  
Wave Antenna

scholarly journals A Multiband Antenna Stacked with Novel Metamaterial SCSRR and CSSRR for WiMAX/WLAN Applications

Micromachines ◽  
2021 ◽  
Vol 12 (2) ◽  
pp. 113
Author(s):  
Rajiv Mohan David ◽  
Mohammad Saadh AW ◽  
Tanweer Ali ◽  
Pradeep Kumar
Keyword(s):  
Split Ring Resonator ◽  
Unit Cell ◽  
Ring Resonators ◽  
Split Ring ◽  
Medium Theory ◽  
High Frequency Structure Simulator ◽  
Dimension Analysis ◽  
Unit Cells ◽  
Coaxial Feed ◽  
Triple Band

This paper presents an innovative method for the design of a triple band meta-mode antenna. This unique design of antenna finds application in a particular frequency band of WLAN and WiMAX. This antenna comprises of a square complimentary split ring resonator (SCSRR), a coaxial feed, and two symmetrical comb shaped split ring resonators (CSSRR). The metamaterial unit cell SCSRR independently gains control in the band range 3.15–3.25 GHz (WiMAX), whereas two symmetrical CSSRR unit cell controls the band in the ranges 3.91–4.01 GHz and 5.79–5.94 GHz (WLAN). This design methodology and the study of the suggested unit cells structure are reviewed in classical waveguide medium theory. The antenna has a miniaturized size of only 0.213λ0 × 0.192λ0 × 0.0271λ0 (20 × 18 × 2.54 mm3, where λ0 is the free space wavelength at 3.2 GHz). The detailed dimension analysis of the proposed antenna and its radiation efficiency are also presented in this paper. All the necessary simulations are carried out in High Frequency Structure Simulator (HFSS) 13.0 tool.

The Periodic Leaky-Wave Antenna With Different Unit Cells Based on Consistent Fundamental Mode

2020 ◽  
Vol 68 (12) ◽  
pp. 7794-7802
Author(s):  
Li Zuo ◽  
Kuang Wang ◽  
Yuanxin Li ◽  
Zhixi Liang ◽  
Shao Yong Zheng ◽  
...  
Keyword(s):  
Fundamental Mode ◽  
Leaky Wave ◽  
Leaky Wave Antenna ◽  
Wave Antenna ◽  
Unit Cells

scholarly journals Design of a Compact Dual-Band Microstrip Antenna Enabled by Complementary Split Ring Resonators for X-Band Applications

2018 ◽  
Vol 7 (3) ◽  
pp. 82-86 ◽  
Author(s):  
E. K. I. Hamad ◽  
M. Z. M. Hamdalla
Keyword(s):  
Microstrip Antenna ◽  
Split Ring Resonator ◽  
Ring Resonators ◽  
Dual Band ◽  
Split Ring ◽  
Full Wave ◽  
Radiating Element ◽  
X Band ◽  
Unit Cells ◽  
Tan Δ

In this paper, a design of highly effective dual-band microstrip antenna for X-band applications is developed. Dual-band response is obtained by etching four rectangular split ring resonator (RSRR) unit cells within the radiating element of a conventional patch initially designed to operate at 10 GHz. The proposed antenna is constructed on low lossy RT/duroid 5880 (ϵr = 2.2, tan δ = 0.0009) substrate of 20x20x1.575 mm3 total area. The antenna is tuned to operate at two resonant frequencies within 8 to 12 GHz depending on the geometric specifications of the RSRR's. A parametric study of different numbers of unit cells etched on the radiating element is investigated and discussed comprehensively through this study. Realized gain of about 6.2 and 6.8 dB at 8.8 and 10 GHz are attained. Consistent results are obtained between the measurements and simulation results using 3D full-wave FEM-base simulator.

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