Studies of corrugated antipodal Vivaldi wideband antenna with notched band and rectenna integration

Nurhayati, Nurhayati and Al Gburi, Ahmed Jamal Abdullah and Setyono, Mohammad Iyo Agus and Anifah, Lilik and Rakhmawati, Lusia and Iskandarianto, Fitri Adi and Ali, Usman (2025) Studies of corrugated antipodal Vivaldi wideband antenna with notched band and rectenna integration. e-Prime - Advances in Electrical Engineering, Electronics and Energy, 14 (101112). pp. 1-13. ISSN 2772-6711

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Abstract

A wideband rectenna based on a Corrugated Antipodal Vivaldi Antenna (AVA) with a notched band is proposed for energy harvesting applications. The antenna performance is studied parametrically by varying the corrugated and rectangular spiral slot (RSS) structures and also by integrating the antenna with a rectenna for energy harvesting applications. The AVA rectenna achieves an S₁₁ of less than -10 dB from 2.38 GHz to beyond 20 GHz. An AVA with two corrugations at the lower position of the radiator increases the bandwidth by 300 MHz compared to an AVA without corrugation. At 2 GHz, AVAs with three and four corrugations exhibit a directivity of 5.73 dBi, compared to 2.9 dBi for an AVA without corrugation. Increasing the corrugation depth enhances the gain, ranging from 3.05 dBi to 9 dBi. The notched band shifts to lower frequencies as the spiral strip slot lengthens, so we can set the desired notched band by adjusting the length and position of the RSS. Furthermore, Integration of a rectangular spiral slot (RSS) enables tunable notched bands, providing flexibility to reject interference from unwanted frequency ranges. The agreement between simulation and measurement confirms that the proposed AVA rectenna is also a strong candidate for wideband energy harvesting applications.

Item Type:	Article
Uncontrolled Keywords:	Antipodal vivaldi antenna (AVA), Rectangular spiral slot (RSS), Energy Harvesting, Notched-Band, Rectenna
Divisions:	Faculty Of Electronics And Computer Technology And Engineering
Depositing User:	Norfaradilla Idayu Ab. Ghafar
Date Deposited:	27 Oct 2025 06:53
Last Modified:	27 Oct 2025 06:53
URI:	http://eprints.utem.edu.my/id/eprint/29039
Statistic Details:	View Download Statistic

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