Prediction of Far-Field Pattern Characteristics of Phased Array Fed Reflector Antennas by Modeling Only a Small Part of the Array - Case Study of Spaceborne Radiometer Antennas
Paper i proceeding, 2017

In this work we present an approach for the prediction of far-field pattern characteristics of phased array fed reflector antennas by modeling only a small part of the array. In this approach, the simulated EEPs of the FPA are modeled as the phase-shifted versions of the simulated embedded element pattern (EEP) of the central element, and thereafter combined with the optimum weighting coefficients in order to find the total pattern of the feed. Although, the EEPs of dense array antennas are generally not identical (due to the array antenna mutual coupling and edge truncation effects), for typical FPA excitation scenarios, where the array edge elements have relatively low weights to produce the desired illumination of the reflector, this simplified approach has been found sufficiently accurate.

array antennas

reflector antenna feeds

microwave radiometers

Författare

Oleg Iupikov

Chalmers, Signaler och system, Kommunikationssystem, informationsteori och antenner, Antennsystem

Artem Roev

Chalmers, Signaler och system, Kommunikationssystem, informationsteori och antenner, Antennsystem

Marianna Ivashina

Chalmers, Signaler och system, Kommunikationssystem, informationsteori och antenner, Antennsystem

Proceedings of the 11th European Conference on Antennas and Propagation, EUCAP 2017, Paris, France, April 2017

2164-3342 (ISSN)

2636-2639.

Ämneskategorier

Övrig annan teknik

Reglerteknik

DOI

10.23919/EuCAP.2017.7928842

ISBN

978-8-8907-0187-0