A novel FSS-Backed reflectarray unit cell is introduced to design a dual-band X/Ku Reflectarray Antenna (RA). A Kuband RA based on this FSS-Backed cell element is designed and located on the top of a conventional X-band RA. Actually, the band-stop Frequency Selective Surface (FSS) property is applied to a wideband element to create isolation between X and Ku band RAs which utilizing the same ra...

In this paper, we propose a miniaturized 2.5-dimensional (2.5D) frequency selective surface (FSS) structure with high angular stability. A novel closed-loop FSS is formed by combining the Jerusalem cross (JC) conventional rectangular closed loop using vias. This approach further enhances coupling performance of and thus achieves design. The unit cell size proposed 0.019λ0 × at resonant frequenc...

This article presents the analysis and investigation of the effect of loading a horn antenna with a double square loop frequency selective surface (FSS) of finite size. It is fabricated on Rogers RT5870 (lossy) of relative permittivity 2.33, thickness 1.575mm and loss tangent 0.0012. This structure is called a filtering antenna (filtenna). Basically it is applied for filtering and minimizing th...

This paper deals with single layer polarization independent Frequency selective surface (FSS) which acts as a triple band reject filter. The two stop bands are broad with percentage bandwidth 11.16% and 10.13% and one is narrow with 3.33% bandwidth. The band ratio is more than 1.5 and band separation is around 30-35dB. This design is investigated theoretically by ANSOFT® Designer software and p...