A Fully Reconfigurable Polarimetric Phased Array Antenna Testbed

Abstract

The configurable phased array demonstrator (CPAD) is a low-cost, reconfigurable, small-scale testbed for the dual-polarized array antenna and radar prototype. It is based on the concept that individual transmit and receive (TR) modules and radiating elements can be configured in different ways to study the impact of various array manifolds on radiation pattern performance. For example, CPAD is configured as (a) a 4 × 4 planar array, (b) a planar array with mirror configuration, and (c) a circular array to support the multifunctional phased array radar (MPAR) system risk reduction studies. System descriptions are given in detail, and measurements are made and results are analyzed.

Comparison of Theoretical Biases in Estimating Polarimetric Properties of Precipitation With Weather Radar Using Parabolic Reflector, or Planar and Cylindrical Arrays

“…) is at θ = 90 • . Mirror arrangement of the patches can eliminate asymmetry, which should result in a lower cross-polar field along the horizontal plane as seen in experiments[21].Fig. 3(b)-(e) presents the patch's radiation field.…”

Open-Source Software for Electromagnetic Scattering Simulation: The Case of Antenna Design

“…The method has been originally developed in the field of MRI (Magnetic Resonance Imaging) [77,78], but it is completely general. Examples of the use of the package in the field of antennas and arrays can be found in [79][80][81]. It is worth noting that openEMS has been also successfully employed in advanced biophysical research [82].…”

Electromagnetic Simulation and Alignment of Dual-Polarized Array Antennas in Multi-Mission Phased Array Radars

“…Then, we need to investigate the surface wave impacts on array performances changing from a small-sized array to a larger array. For the measurements, although we have developed a laboratory-scale testbed and measurement procedures [8][9][10][11] for different types of manifolds, the method to extend small-scale array measurements to a large array with thousands of elements still needs more investigations and verifications; (ii) The diversity of design options being evaluated and compared, especially for cylindrical arrays [12], due to multiple and different choices in the manifold implementations: Other examples include dipole vs. radiating patch elements, faceted geometries vs. fully-conformal geometries for array antenna implementations and hybrid configurations. Electromagnetic simulations are essential in the prediction, comparison and verification of larger EM structure applications.…”