In this article, a multiport beamforming system based on the reconfigurable waveguide phased antenna array is presented, which fed by microstrip single-layer feeding network. The transitions and linear-polarized/circular-polarized arrays have high flexibility to meet different requirements in applications according design purposes, also suitable for satellite communication with separate transmi...

Printed reflectarrays combine certain advantages of reflector antennas and phased arrays. One major hurdle in the designing of reflectarrays is the compensation of phase difference between various elements. This paper presents reviews of various techniques for phase compensation, like using variable sizes of the patch, adding stubs of variable lengths and use of variable size slots on the groun...

A new design and experimental results of a microstripfed ultra-wideband Fermi antenna at millimeter-wave frequencies are presented. By utilizing a new microstrip-to-CPS balun (or transition), which provides wider bandwidth than conventional planar balun, the design of microstrip-fed Fermi antenna is greatly simplified. The proposed Fermi antenna demonstrates ultra-wideband performance for the f...

The present paper describes the phase only pattern synthesis for the active phased array antenna using genetic algorithm. The phase only synthesis is required to broaden and shape the beam in transmit mode of operation where all elements are fed through the saturated power of transmit/receive modules (TRM). This technique is very useful in multifunctional radar application where broadened beam ...

A novel fractal called Fractal Clover Leaf (FCL) is introduced and shown to have well miniaturization capabilities. The proposed patches are fed by L-shape probe to achieve wide bandwidth operation in PCS band. A numerical parametric study on the proposed antenna is presented. It is found that the antenna can attain more than 72% size reduction as well as 17% impedance bandwidth (VSWR<2), in co...

Wireless power transfer promises to revolutionize the way in which we use and mobile devices. However, low efficiencies prevent this technology from seeing wide scale real-world adoption. The aim of work is quasioptics develop a system composed dielectric lens fed by phased array reduce spillover losses, increasing beam efficiency, while working on antenna system’s Fresnel zone. DC-RF electroni...