Wideband metamaterial antenna employing SRR loading for WiMAX and WLAN operations (original) (raw)
Related papers
Metamaterial inspired monopole antenna for WLAN/WiMAX applications
Microwave and Optical Technology Letters, 2016
In this paper Split Ring Resonators are designed at two different frequencies and SRR are merged with monopole antenna designed at 3GHz. This antenna shape looks like a weapon bludgeon hence it is named as square shape bludgeon antenna. The said antenna gives four different bands in the UWB range. Both the antennas can be used for WLAN and WiMAX applications as it covers both the frequencies. The complementary Split Ring Resonators are etched at ground surface to enhance the Bandwidth of antenna, and bandwidth enhancement is achieved at higher frequency. The metamaterial property of SRR is proved in first section of paper. The fabricated antennas tested using the vector network analyzer, the measured and simulated results are in good agreement with each other.
SRR metamaterial-based broadband patch antenna for wireless communications
Journal of Engineering and Applied Science
This paper presents the design and analysis of a broad-band patch antenna using split ring metamaterial. The SRR metamaterial structures are embedded in a unique and novel way in the patch antenna, so that subwavelength modes get introduced in the patch cavity and a broad bandwidth antenna with good performance characteristics is obtained. A rectangular microstrip patch antenna is taken as a reference antenna, which resonates at a frequency of 5.2 GHz and has an impedance bandwidth of 70 MHz. To improve the bandwidth of the patch antenna, firstly the split ring resonator (SRR) is designed according to the reference patch antenna. The optimized SRR metamaterial is placed in between the patch and ground plane of the proposed antenna. The – 10 dB impedance bandwidth of the metamaterial-embedded proposed antenna is 1.63–4.88 GHz and has an average gain of 4.5 dB. The Prototype of the proposed antenna and reference antenna is fabricated and experimental results are obtained. Experimental...
Metamaterial Inspired Square Ring Monopole Antenna for WLAN Applications
2016
─ This paper describes the design of a compact dual band monopole antenna using a metamaterial inspired split ring structure for WLAN (2.4/5.2/5.5 GHz) applications. The antenna is printed on a 20x20x0.8 mm FR-4 substrate. It consists of two concentric square rings with a partial ground plane and is fed by a microstrip line. A split in the outer ring is introduced to induce magnetic resonance which in turn yields a narrow lower band resonance at 2.4 GHz. The position of the split in the ring plays a vital role in inducing the magnetic resonance. The extraction of negative permeability of the ring structure with and without the split is discussed to verify the metamaterial property existence. A prototype of the proposed structure is fabricated and the measured results comply greatly with the simulated results. The antenna has consistent radiation pattern over all the working region. Index Terms ─ Metamaterial, monopole, negative permeability, split ring, WLAN.
Modeling and Analysis of Metamaterial-Based Antenna for Wi-Fi and WLAN Applications
2019
In this work, a 4 × 4 Rectangular Split Resonator (SRR) array with resonance at 5.8 GHz is proposed. By optimizing the geometry through genetic algorithm, sub-wavelength resonance at the desired frequency was obtained, while maintaining the antenna’s radiation efficiency at broadside. The total size of the antenna is 30 mm × 30 mm, thus ensuring compactness. The design was compared with a Circular SRR and an alternating sequence of Rectangular and Circular SRRs. Further, the permittivity and permeability of the structure was plotted, which was negative at the resonance frequency.
Multiband metamaterial-inspired antenna using split ring resonator
Computers & Electrical Engineering, 2020
A novel compact Coplanar Wave Guide (CPW)-fed metamaterial (MTM)-inspired multiband antenna is designed for Wireless Local Area Network (WLAN), C-Band, Universal Mobile Telecommunication System (UMTS) and Worldwide Interoperability for Microwave Access (WiMAX) applications. The new multiband antenna with the dimensions of 40 × 40 × 0.8 mm 3 is fabricated on FR4 substrate. It consists of circular shaped Split Ring Resonator (SRR) with five rings and resonates at 2.10 GHz (UMTS), 2.9 GHz (WLAN), 3.5 GHz (WiMAX), 4.5 GHz (C-band), 5.7 GHz (WLAN) and 6.5 GHz (WLAN-IEEE 802.11ax). Parametric studies are performed on a number of metallic rings, height of the CPW-fed ground plane and different substrate materials for the proposed penta-ring SRR. A prototype antenna is fabricated and the results are measured to examine the simulated results. The measurement of the radiation pattern shows an omnidirectional pattern in H-plane and a dipole like pattern in E-plane.
Metamaterial based Multiband and UWB Antenna Using Split Ring Resonator Concept
2017
Electromagnetic metamaterials (MTMs) are artificial effectively homogeneous electromagnetic structures with unusual properties not readily available in nature. Metamaterials are artificial structures which provide engineerable permeability and permeability. This paper gives classification of metamaterial based on available literature. In this paper Split Ring Resonator is used to explain the concept of metamaterials. Further the work is extended to demonstrate the effect of SRR to generate multiband antenna in the frequency band of 1 GHz to 10GHz. By modifying the ground structure of multiband antenna efficient UWB antenna is designed and simulated using EM simulation tool. This paper also demonstrates the effect of placing SRR to particular position on ground changes from multiband antenna operation to ultra wide band.
Study of Metamaterials and Analysis of Split Ring Resonators to Design Multiband and UWB Antennas
GRENZE International Journal of Engineering and Technology
Metamaterials are artificial structures which provide engineerable permeability and permeability. This paper gives classification of metamaterial based on available literature. In this paper Split Ring Resonator is used to explain the concept of metamaterials. Further the work is extended to design printed monopole antenna and effect of SRR to generate multiband antenna in the frequency band of 1 GHz to 10GHz. In next section of paper multiband antenna in converted to UWB antenna by modifying the ground structure of multiband antenna using SRR. Now day's multiband antenna with compact size is growing field of research and metamaterials promise small size, high efficient multiband and UWB antennas.
International Journal of RF and Microwave Computer-Aided Engineering, 2017
A miniaturized dual-band metamaterial (MTM) antenna has been designed in this article. The designed coplanar waveguide fed antenna has composed of inner splitring resonator and an outer open ring resonator with rectangular stub. The series parameter of the antenna is used to determine the zeroth order resonance frequency due to short-ended boundary condition. The whole size of proposed structure is 20 3 25.5 mm 2. This MTM antenna exhibits dual-band operation at 3.17 GHz (3.1-3.22 GHz) and 5.39 GHz (5.27-5.47 GHz). The proposed MTM structure achieves measured peak gain of 0.71 and 1.89 dB at 3.17 and 5.39 GHz, respectively. The proposed antenna can be used for recent radio communication in form of S-band application and Wi-MAX.
DESIGN OF CSRR EMBEDDED METAMATERIAL MONOPOLE ANTENNA FOR WiMAX APPLICATIONS
2015
A novel design and development of a simple monopole antenna based on composite metamaterial resonators for multiband operation is presented. The antenna has frequency notched function since the composite CPW (Co-Planar Waveguide) metamaterial resonators CSRR (closed-ring resonator and SRR) which is embedded on the planar monopole that resonates for multiple frequency bands. The antenna resonates for the frequency of (Wi-MAX) 3.4 to 3.5GHz and 5.725 – 5.875GHz which have good impedance matching and radiation performance.
Metamaterial-Inspired Split Ring Monopole Antenna for WLAN Applications
2016
─ This paper describes the design of a compact dual band monopole antenna for WLAN (2.4/5.2/5.8 GHz) applications. The antenna is printed on a 22.5×24×0.8 mm FR-4 substrate with a partial ground plane and is fed by a microstrip line. The proposed structure consists of a simple hexagonal ring with a split arm along its center. The split in the arm in turn creates a quarter wavelength resonance in the higher frequency range. It also induces magnetic resonance which accounts for band notch between the WLAN lower (2.4 GHz) and upper bands (5.2/5.8 GHz). The extraction of negative permeability of the split ring structure is also discussed. A prototype of the proposed structure is fabricated and the measured results comply greatly with the simulated results. The antenna has consistent radiation pattern and stable gain over all the working region. Index Terms ─ Hexagonal monopole antenna, negative permeability, notch frequency, split ring, WLAN.