Planar Dual-Band Wide-Scan Phased Array in X-Band

Asymmetrical-fed RHCP Wide-Band Slot Element for X-Band applications

An outstanding square slot element, for x-band wireless applications with asymmetric coplanar waveguide fed (CPW) is proposed. Various shapes of metallic strips are utilized as grounded stubs for providing Right Hand Circular Polarization (RHCP) functionality and wide-band properties. By adjusting the proposed stubs and hook-shaped radiator, length and positions, wider impedance band width is o...

Dipole Array Scan Performance over a Wide-Band

A large square array of thin dipoles has a well-behaved scan resistance over a wide bandwidth. Such an array requires reactance matching with frequency, but not with scan angles. The scan element pattern (SEP) shows only small changes over a 5 : 1 bandwidth. However, a dipole/screen array is suitable for wide-band scan only in the H-plane.

Mobile X-band Dual Polarization Phased Array Radar: System Requirements and Development

This paper describes the X-band dual polarization phased array radar being developed at the University of Massachusetts. The high level system architecture is presented. The scanning strategy as well as pulse compressor design considerations are discussed.

Ka-band phased array system characterization

Dual-beam Wide-band Beamformer with Integrated Antenna Array

As part of the development of a new international radio-telescope SKA (Square Kilometre Array), three phased-array prototypes with increasing complexity have been developed. The final SKA telescope will consist of more than one million receiving antenna elements and will operate in the frequency range of 200 to 2000 MHz. One of the challenges of the next generation radio telescopes for astronom...