The term space wave refers to a wave that is propagating through an open medium with a
diverging wavefront as it moves away from the source. The term guided wave denotes a …

Amplitude-modulated (AM) leaky-wave antenna (LWA), a concept following amplitude
modulation technique from classical communications theory, is a promising structure that …

A liquid crystal substrate-integrated waveguide (SIW) leaky wave antenna based on the
theory of holographic is proposed in this article. The proposed leaky-wave antenna uses the …

This paper presents the design of a Ka-band reflectarray antenna, intended for LEO-satellite
communications, which operates at 27 GHz. The phase tuning mechanism relies on variable …

We present the concept of holographic beam forming metasurface antenna for CubeSat
platforms at X-band frequencies. The proposed metasurface topology exhibits a flat-panel …

A polarization-insensitive circular refiectarray antenna (RA) for long-distance wireless
communications is investigated. By combining patches, dipoles, and rings, a polarization …

A circular reflectarray antenna (RA) for generating Orbital Angular Momentum (OAM) modes
in the Terahertz (THz) band is introduced. An interlaced unit cell is proposed to reach a …

Substrate integrated waveguides (SIW) technology is employed to design a uniform long slot
leaky-wave antenna (LWA) in millimeter-wave (mmWave) band. The structure is then loaded …

The main objective of this thesis is to manipulate electromagnetic (EM) waves in guided-
wave and periodic structures to enhance the radiation characteristics of the corresponding …

This work presents the systematic approach for improving the radiation patterns of monopole
holographic antenna. Most of the present works show unwanted high sidelobe level (SLL) …