This paper presents the design and results of a planar lens fed by fan beam H-plane horn antenna. Compared with traditional dielectric antenna, based on metamaterials is composed several unit cells designed for changing phase incident wave. The presented center-fed antenna located at 100mm from lens, thickness it 5mm. simulation exhibits high gain 30dB 76.5GHz fan-shaped main half-power beamwid...

In this paper, A lens antenna with high gain is proposed. The composed of the microstrip and hemisphere dielectric lens, loaded on top. polyethylene used to fabricated lens. has dimensions 47.58 mm × 24.79 mm, which corresponding electrical size 1.586λ0×1.586λ0×0.826λ0, where λ0 free-space wavelength at 10GHz. impedance bandwidth (return loss<-10dB) 12.7%(9.24 GHz-10.51 GHz), peak 9.06 dBi. ...

A fixed shaped beam antenna offers an excellent compromise between cost and system performance in high data rate systems operating in the frequency range of 565 GHz. Shaped Dielectric Lenses perform the task of collimation and shaping, along with physically small feed antennas, to obtain multiple and shaped beams in a fixed set of directions. Lenses are inherently broadband, easy to fabricate, ...

The wireless communication serves the efficient information among two or more points wirelessly. Antenna is the main component in the communication, which radiates and receives the radio waves or in broad way. The antenna also plays a role of impedance matching device, which performs the matching of impedances like free-space & transmitter and receiver impedances at receiver end. The antennas c...

Recently, millimeter wave applications are rapidly growing in modern high-speed and broadband wireless systems such as uncompressed HD-TV transmission, home link and radar for the collision prevention. In this paper, a NRD guide [1] fed dielectric lens antenna with high gain and low sidelobe characteristics is proposed for millimeter wave applications. The proposed antenna is designed on the ba...

An innovative technological process is investigated to easily manufacture inhomogeneous Luneburg lenses. A unique foam material is drilled and pressed to achieve the different dielectric constant needed to follow the index law inside the lens. The performance of such 60 GHz antenna is described and the antenna prototype is measured in terms of gain and radiation patterns. The results show a goo...

The millimeter-wave front-end module for an automotive radar sensor is generally composed of an antenna placed on the front surface of the sensor head and a millimeter-wave circuit inside it. As the antenna for the radar sensor, several types of antennas, a slotted waveguide antenna, a triplate antenna, a dielectric lens antenna, a dielectric leaky wave antenna and a microstrip antenna, have be...

In this work, we show how we can improve the image resolution capabilities of a Phase Conjugating (PC) lens as well as the angular resolution of Luneburg lens antennas, aperture antennas, and the Randomly Distributed Radar Array (RDRA), by employing signal processing techniques, such as the Correlation Method (CM), the Minimum Residual Power Search Method (MRPSM), the sparse reconstruction meth...