A Metamaterial Inspired Tapered Patch Antenna for WLAN/WiMAX Applications

Geetharamani, G.; Aathmanesan, T.

doi:10.1007/s11277-020-07283-5

Cited by 26 publications

(5 citation statements)

References 14 publications

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“…However, this technique is mainly suitable for thicker substrates [18,19]. Besides that, other techniques such as modification of the ground structure or stacking of multiple substrate layers potentially improve the gain of patch antennas [20]. For the former, several examples include the use of a U-shaped slot, L-shaped arm, or interlocking semielliptical holes in the ground plane, or feeding a rectangular and hexagonal patch using the coplanar waveguide (CPW) technique [21,22].…”

Section: Introductionmentioning

confidence: 99%

Single-Layer Planar Monopole Antenna-Based Artificial Magnetic Conductor (AMC)

Abdulbari

Rahim

Abedi

et al. 2022

International Journal of Antennas and Propagation

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In this paper, a coplanar waveguide (CPW)-fed patch antenna is fabricated on a layer of metasurface to increase gain. The antenna is fabrication on Roger substrate with a thickness of 0.25 mm, with the overall dimension of the proposed design being 45 × 30 × 0.25 mm3. The size of the patch antenna is 24 × 14 × 0.25 mm3, and the AMC unit cell is 22 × 22 × 0.25 mm3. This metasurface is designed based on the split-ring resonator unit cells forming an array of the artificial magnetic conductor (AMC). Meanwhile, the antenna operation on 3.5 GHz is enabled by etching a split-ring resonator slot on the ground plane with a small gap to enhance antenna gain and improve impedance bandwidth when integrated with a metasurface. This simulation planer monopole antenna is applied for 5G application. The experimenter test is applied for the antenna performance in terms of return loss, gain, and radiation patterns. The operating frequency range with and without MTM is from 3.41 to 3.68 GHz (270 MHz) and 3.37 to 3.55 GHz (180 MHz), respectively, with gain improvements of about 2.7 dB (without MTM) to 6.0 dB (with MTM) at 3.5 GHz. The maximum improvement of the gain is about 42% when integrated with the AMC. The AMC has solved several issues to overcome the typical limitation in conventional antenna design. A circuit model is also proposed to simplify the estimation of the performance of this antenna at the desired frequency band. The proposed design is simulated by CST microwave studio. Finally, the antenna is fabricated and measured. Result comparison between simulations and measurements indicates a good agreement between them.

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Section: Introductionmentioning

confidence: 99%

Single-Layer Planar Monopole Antenna-Based Artificial Magnetic Conductor (AMC)

Abdulbari

Rahim

Abedi

et al. 2022

International Journal of Antennas and Propagation

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“…With fast progress in wireless technology systems, there is a strong request for antennas with low profiles, compact dimensions, planar geometry and especially the ability to provide a large impedance bandwidth for WLAN and WiMAX applications in several bands, such as 2.4-2.5/3.6/4.9-5.9 GHz and 2.3/2.5/3.3/3.5/5/5.5 GHz, respectively [1][2][3]. Microstrip antennas are the best type of antennas that meet these requirements due to their low weight, easy miniaturization, portability, installation flexibility, good performance and low manufacturing costs [4,5].…”

Section: Introductionmentioning

confidence: 99%

Compact Broadband Antenna with Vicsek Fractal Slots for WLAN and WiMAX Applications

et al. 2022

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This paper aims to design a compact broadband antenna for wireless local area network (WLAN) and worldwide interoperability for microwave access (WIMAX) applications. The suggested antenna consists of an octagonal radiator with Vicsek fractal slots and a partial ground plane, it is printed on FR-4 dielectric substrate, and its global dimension is 50 × 50 × 1.6 mm3. The antenna is designed and constructed using both CST MICROWAVE STUDIO® and CADFEKO electromagnetic solver, and in order to validate the acquired simulation results, the antenna is manufactured and tested using vector network analyzer E5071C. The measurement results show that the designed antenna attains a broadband bandwidth (S11 <−10 dB) from 2.48 to 6.7 GHz resonating at 3.6 and 5.3 GHz, respectively. The broadband bandwidth covers the two required bands: WiMAX at the frequencies 2.3/2.5/3.3/3.5/5/5.5 GHz and WLAN at the frequencies 3.6/2.4–2.5/4.9–5.9 GHz. In addition, the suggested antenna provides good gains of 2.78 dB and 5.32 dB, omnidirectional measured radiation patterns in the E-plane and the H-plane and high efficiencies of 88.5% and 84.6% at the resonant frequencies. A close agreement of about 90% between simulation and measurement results is noticed.

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“…A metamaterial, inspired tapered patch antenna operating in 2.5 GHz, 3.5 GHz, 4.6 GHz, and 5.8 GHz, was proposed in [14]. Circular split-ring resonator (CSRR) metamaterial structure was placed near the radiating edges of the antenna to enhance the return loss of the antenna.…”

Section: Introduction E Technical Development In Wireless Communicati...mentioning

confidence: 99%

A New Approach for Calculation of Metamaterial Printed Fractal Antenna Using Galerkin’s Method

Saedy

Saleh

Ali

2022

International Journal of Antennas and Propagation

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This work provides a new approach for computing the impedance of a proposed multiband printed fractal antenna for wireless applications. Galerkin’s method is applied to deduce the impedance relationship of the proposed structure and then compute the return loss verses frequency by converting the impedance matrix of the proposed antenna [Z] to the scattering matrix [S]. This model is developed in order to study the impedance of the proposed antenna after adding a metamaterial structure in the antenna substrate. The obtained model is able to determine the resonant frequencies and the return loss of the proposed antenna. The model is also able to define the changes in these values when the dimensions of the proposed structure change. The proposed antenna provides multiband wireless applications in the (1–10) GHz frequency band, and the return loss of the proposed fractal antenna has been improved using negative permittivity and negative permeability metamaterial structure.

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A Metamaterial Inspired Tapered Patch Antenna for WLAN/WiMAX Applications

Cited by 26 publications

References 14 publications

Single-Layer Planar Monopole Antenna-Based Artificial Magnetic Conductor (AMC)

Single-Layer Planar Monopole Antenna-Based Artificial Magnetic Conductor (AMC)

Compact Broadband Antenna with Vicsek Fractal Slots for WLAN and WiMAX Applications

A New Approach for Calculation of Metamaterial Printed Fractal Antenna Using Galerkin’s Method

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