Miniaturized and Gain Enhancement of Tapered Patch Antenna Using Defected Ground Structure and Metamaterial Superstrate for GPS Applications

Suvarna, Kakani; Ramamurthy, Nallagarla; Vardhan, and Dupakuntla Vishnu

doi:10.2528/pierc20111701

Cited by 6 publications

(2 citation statements)

References 24 publications

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“…It is increasingly popular to be used to improve the antenna performance by increasing the directivity and gain and reducing the back radiation of patch antennas [25,26]. One of the types of metamaterials widely used in antennas is the electromagnetic band gap (EBG) and artificial magnetic conductors [27]. To enhance gain, EBG or artificial magnetic conductor (AMC) layers can be integrated with antennas with a small distance between them [28], which maintains the antenna's overall low profile.…”

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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“…Due to availability of unused bandwidth the interest is increasing towards the millimetre wave spectrum to meet the requirement of lower latency, high throughput and wider bandwidth for future wireless communication [12][13][14]. In this paper we have presented a metamaterial based antenna for wireless application.…”

Section: Introductionmentioning

confidence: 99%

Metamaterial-Based Miniaturized DGS Antenna for wireless Applications

Singh

Lohar

2022

IOP Conf. Ser.: Mater. Sci. Eng.

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In this article, metamaterial based miniaturized DGS (Defective Ground Structure) antenna is presented. Initially conventional antenna is designed for 2.4 GHz and by using DGS method, the same conventional antenna size is reduced upto 50% of initial design. But antenna gain down due to DGS in antenna structure. By using metamaterial as a reflector, the antenna gain can be enhanced. The antenna and metamaterial are designed on Rogers RT5880 and Teflon Ceramic TF-1/2 (εr = 10.2, tanδ = 0.001) respectively. All simulation results are carried out by using EM simulator CST software and for the operating frequency of 2.415 GHz a gain of 6.28dB is observed.

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