Optimization of Notch Band Frequency in Communication Technology Using Different SRR Types in Vivaldi Antenna

Abstract

This research was based on M-Vivaldi (Modification Vivaldi) antenna design, which had a bandwidth of 2.4-9.1 GHz with a total antenna size of 150 x 75 mm. In the M-Vivaldi design, Split Ring Resonator (SRR) was incorporated to introduce a band-notch effect. The SRR came in various types, including Complementary Square-Split Ring Resonator (CS-SRR), Complementary Circular-Split Ring Resonator (CC-SRR), Half Circular-Split Ring Resonator (HC-SRR), and Flower-Split Ring Resonator (F-SRR). These different SRR types created distinct notch band, resulting in a combination of all SRR types into All Complementary-Split Ring Resonator (AC-SRR). The research focused on five notch band, namely 1.5-2.3 GHz, 2.4-2.8 GHz, 3.2-3.7 GHz, 3.2-4.8 GHz, and 6.4-7 GHz. These notch band effectively mitigated interference in Ground Penetrating Radar (GPR), Wireless Local Area Network (WLAN), Worldwide Interoperability for Microwave Access (WiMax), and Band Satellite communication.