SIW Leaky Wave Antenna for THz Applications

Abstract

This paper proposes a new design of leaky wave antenna (LWA) based on substrate integrated waveguide (SIW) technology for THz applications. The suggested LWA structure has a combination of longitudinal and transverse slots and makes a 10-element linear array of radiating elements. To address the problem of open-stop-band (OSB), four additional smaller slots were etched on the corners of longitudinal and transversal slots. At the broadside, this LWA provided a gain of 12.33 dBi, and a continuous wide beam scanning range from +78° to −6° via the broadside while exhibiting efficient radiation performance over the operating frequency bands of 105 GHz to 109 GHz with a peak gain of 16.02 dBi.

Enhancing Performance of Millimeter Wave MIMO Antenna with a Decoupling and Common Defected Ground Approach

“…Metamaterial-inspired structures, such as capacitive-loaded loops [29], split-ring resonators [30], and metamaterial superstrates [31], have proven effective at enhancing the isolation of MIMO antennas. However, integrating these structures can lead to challenges such as increased space requirements and heightened design intricacies [32]. This complexity arises from the integration of intricate RF circuits into compact communication devices.…”