A Brief Survey on Metamaterial Antennas: Its Importance and Challenges

Chindhi, Pradeep; Kalkhambkar, Geeta; Rajani, H. P.; Khanai, Rajashree

doi:10.1007/978-981-16-4625-6_41

Cited by 4 publications

(3 citation statements)

References 24 publications

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“…Meta-materials (MTM) are the most important technologies used in this field [3][4][5]. MTMs are scientifically defined as materials that meet the requirements of effective homogeneity and possess unique properties not found in nature [6]. Such technology started in 1967. when Victor Veselago predicted the existence of materials with negative permeability and permittivity.…”

Section: Introductionmentioning

confidence: 99%

A Miniaturized Printed Circuit CRLH Antenna-based Hilbert Metamaterial Array

Ismail

Elwi

Salim

2022

JCOMSS

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With the development of communication systems and antennas, various challenges arise that require antennas of small size with enhanced performance. Metamaterials (MTM) defects introduced a considerable solution to such a challenge. Therefore, in this paper, a lightweight with low profile antenna is designed based on a novel design of a Composite Right/Left-Handed CRLH-MTM Hilbert array. The proposed CRLH-MTM unit cell consists of a T-symmetric CRLH unit cell conjugated to the 3rdorder Hilbert on the ground plane through a T-stub structure to enhance the gain-bandwidth product. CST-MWS is used to stimulate and design the proposed antenna structure. The antenna parameters are optimized to evaluate the antenna performance in gain and S11. As a result, the antenna can operate forward and backwards with a large scanning angle ranging from +34 o to -134 o with changing frequency, and dual-band extended from 3.3GHz to 4.2GHz 4.86GHz 5.98GHz with a maximum gain of 7.24dBi and 3.74dBi, respectively. The beam steering is achieved by trough controlling the switching operation of PIN diodes. As a result, the antenna can scan up to 8° from 34° to 42° at 3.5GHz with constant gain along with the operating range.

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Section: Introductionmentioning

confidence: 99%

A Miniaturized Printed Circuit CRLH Antenna-based Hilbert Metamaterial Array

Ismail

Elwi

Salim

2022

JCOMSS

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“…As the antenna radiation efficiency and total efficiency are high at 2.49 GHz compared with the 3.73 GHz, 2.49 GHz is selected for the rectenna design and simulation in ADS software. The proposed antenna bandwidth at 2.49 GHz and 3.73 GHz can be enhanced with metamaterial structure/shapes (16) .…”

Section: Antenna Designmentioning

confidence: 98%

A Spurious Free Dual Band Microstrip Patch Antenna for Radio Frequency Energy Harvesting

Chindhi¹,

Rajani²,

Kalkhambkar³

2021

IJST

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Objectives: To design high gain square slots loaded dual-band rectangular microstrip patch antenna having harmonic suppression capability and rectifier circuit (Rectenna (Antenna + Rectifier) for Radio Frequency Energy Harvesting (RFEH). Methods: To achieve the objectives, the square slots are loaded on the four corners of the rectangular microstrip patch in order to enhance the current distribution which resulted in improved impedance matching at desired frequencies with dual isolated bands. The proposed antenna is simulated in Computer Simulation Technology (CST) Studio Suite Three-Dimensional Electromagnetic Simulation (3DEM) software. A rectifier with an LC impedance matching network is designed, simulated, and optimized in Agilent Advanced Design System (ADS) software. Findings: The overall size of the proposed antenna operating at 2.49 GHz and 3.73 GHz (WiMax) is 57×48×2.5 mm 3 . The proposed antenna is assessed in terms of its simulated performance parameters: Return loss (S1,1), Impedance (Z1,1), Voltage Standing Wave Ratio (VSWR), Gain, Directivity, and Efficiency. The proposed antenna exhibits improved performance over the conventional rectangular patch antenna, in terms of (S1,1), Impedance (Z1,1) and Gain. The results obtained from the simulation indicate -35.47 dB and -37.42 dB of S1,1 at 2.49 GHz and 3.73 GHz respectively with the Gain of 4.74 dBi and 3.62 dBi respectively. Further, a rectifier circuit is proposed at 2.45 GHz. The complete rectenna system is simulated over a range of input power levels (1dBm-10dBm) for 4.7 kOhm load resistance. The simulated rectenna result presents the maximum output voltage of 3.34 V. Novelty and Applications: The proposed rectenna design with its harmonic suppression capability can be used for RFEH to drive the Internet of Things-Sensor Network (IoT-SN) and Wireless Sensor Network (WSN). The novelty of the proposed work is harmonic suppression capability. harmonic suppression capability is achieved by inserting the square slots at the four corners of the conventional square patch. https://www.indjst.org/

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“…Metamaterials (MTM) are considered technologies that have received particular attention in this field to control and manipulate electromagnetic waves to develop features and characteristics that are not available in nature, thus improving the overall performance [5,6]. Negative constitutive parameters characterize the MTM, therefore called left-handed materials, as they generate a left-handed triad when spreading, which contrasts with the normal spread of other materials.…”

Section: Introductionmentioning

confidence: 99%

Antenna Gain-Bandwidth Enhancements Using CRLH Hilbert Fractal-based Structure

Ismail¹,

Elwi²,

Salim³

2022

ETJ

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 This paper introduces the design of lowprofile metamaterial-based arrays.  The array unit cell comprises a CRLH unit cell. A third-order Hilbert curve structure replaces the VIA, and aperiodic slots are introduced between the unit cells to enhance the overall performance.  A dual-bandwidth was achieved extended from (3.72 to 3.79) GHz and (6.99 to 8.55) GHz with maximum antenna gain equal to (5.28, 7.66) dBi, respectively.With the development of communication systems, antennas of small size and high gain have become essential to keep up with the new challenges. The metamaterials made these challenges possible. In this paper, a new low-profile metamaterialsbased array is designed. The array unit cell comprises a symmetric composite right left hand (CRLH) unit cell. A third-order Hilbert curve structure replaces the VIA, and aperiodic slots are introduced between the unit cells to enhance the overall performance. This design provides a significant improvement over the original design. CST M WS was used to stimulate the design. Gain and S11 are calculated to evaluate the antenna performance; a dual-bandwidth was achieved extended from (3.72 to 3.79) GHz and (6.99 to 8.55) GHz with maximum antenna gain equal to (5.28, 7.66) dBi, respectively. The antenna is characterized by its small size and high efficiency, making it suitable for Long-Term Evolution LTE, 5G, and satellite applications.

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A Brief Survey on Metamaterial Antennas: Its Importance and Challenges

Cited by 4 publications

References 24 publications

A Miniaturized Printed Circuit CRLH Antenna-based Hilbert Metamaterial Array

A Miniaturized Printed Circuit CRLH Antenna-based Hilbert Metamaterial Array

A Spurious Free Dual Band Microstrip Patch Antenna for Radio Frequency Energy Harvesting

Antenna Gain-Bandwidth Enhancements Using CRLH Hilbert Fractal-based Structure

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