Leaky-wave/Fabry-Perot antennas (LWAs/FPAs) are often implemented by using an air-spacer cavity between the ground plane and partially reflective surfaces (PRSs), which complicates the fabrication process. In this paper, a substrate integrated FPA is investigated by employing a design topology comprising a top PRS printed onto a metal backed low-cost ITERA MT40 dielectric substrate. The top PRS consists of a periodic array of simple patches that are etched by using the standard photolithography method. A pair of metallic strips are introduced in the slotted groundplane to achieve good impedance matching. The proposed FPA achieves a high gain of 11 dBi and shows a simulated impedance matching with an |S11| value of -18 dB at 85 GHz. Finally, the antenna is fabricated and its simulation results are validated through multiple measurements conducted on various samples.
High-Gain mm-Wave Leaky-Wave/Fabry-Perot Antenna Using Substrate-Integrated Partially Reflective Surfaces
Bilal R. M. H.;Genovesi S.;Manara G.;Costa F.
2025-01-01
Abstract
Leaky-wave/Fabry-Perot antennas (LWAs/FPAs) are often implemented by using an air-spacer cavity between the ground plane and partially reflective surfaces (PRSs), which complicates the fabrication process. In this paper, a substrate integrated FPA is investigated by employing a design topology comprising a top PRS printed onto a metal backed low-cost ITERA MT40 dielectric substrate. The top PRS consists of a periodic array of simple patches that are etched by using the standard photolithography method. A pair of metallic strips are introduced in the slotted groundplane to achieve good impedance matching. The proposed FPA achieves a high gain of 11 dBi and shows a simulated impedance matching with an |S11| value of -18 dB at 85 GHz. Finally, the antenna is fabricated and its simulation results are validated through multiple measurements conducted on various samples.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
