Gain Enhancement of Annular Ring Patch Using Cascaded EBG

Sravya, R. Venkata; Kumari, Runa; Choudhury, Balamati

doi:10.1109/imws-amp.2019.8880133

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2022

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“…v. 15. This is an extension of the work presented in IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) [12].…”

Section: Introductionmentioning

confidence: 77%

Patch antenna with multi-cell EBG for RF energy harvesting applications

Venkata

Sankar

Kumari

2022

Int. J. Microw. Wireless Technol.

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In this paper, a ring patch antenna with 1 GHz of bandwidth and three resonances is designed for the RF energy harvesting application. Two complementary split-ring resonators (CSRR) is etched out from the patch, designed at 6.8 GHz, near feed to enhance the bandwidth from 267 MHz to 1 GHz. Due to the introduction of CSRR, two additional resonances at 6.4 and 7.4 GHz are obtained with gain 5.5 and 0.2 dB respectively. The gains at 6.8 and 7.4 GHz are enhanced to 8.3 and 2 dB respectively by cascaded circular mushroom electromagnetic bandgap structures (EBGs) with circular symmetry designed around the antenna. This ring patch antenna with cascaded EBG is integrated with a rectifier circuit based on voltage doubler topology (rectenna). The results of the rectenna show that, for an input power of 7 dBm to the rectifier circuit, a DC output voltage of 1.2 V with a power conversion efficiency of 40% is achieved.

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“…v. 15. This is an extension of the work presented in IEEE MTT-S International Microwave Workshop Series on Advanced Materials and Processes for RF and THz Applications (IMWS-AMP) [12].…”

Section: Introductionmentioning

confidence: 77%