In this paper, a W-band single-layer reflectarray antenna is proposed with the advantages of broadband and high aperture efficiency. A novel dual rotation-symmetry windmill element designed in W-band, which consists two layers copper patches printed on Rogers RT5880 substrate. Based analysis metasurface element, square 13.85λ <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http...

We propose a W-band circularly polarized reflectarray antenna in this article, which contains single-layer and linearly horn feed. To realize the proposed antenna, we designed novel multi-resonant element containing Rogers RT5880 substrate with copper patches printed on its both surfaces. Then, circular 12.25 λ0 (39.1 mm) aperture diameter was based element, whose center frequency is 94 GHz. fu...

Reflectarray antennas are low-profile high-gain systems widely applied in the aerospace industry. The increase their application is leading to problem of getting more advanced performance while keeping system as simple possible. In these cases, design cannot be conducted via analytical methods, thus evolutionary optimization algorithms often implemented. Indeed, characterized by presence many l...

In recent years reflectarray antennas have received considerable attention due to their unique capabilities. However, due to their large size, analyzing the performance of these antennas using traditional full wave finite-difference and finite-element techniques requires considerable computational resources. In this paper, we present an efficient method to accurately analyze these class of ante...

As the important case of conformal arrays, conformal arrays on cylindrical surfaces have been widely used in radar and communication systems. This paper explores the chances of designing conformal reflectarray on cylindrical platform. An extended array theory method is proposed in this paper for analyzing the radiation patterns of cylindrical conformal reflectarray. The radiation characteristic...