Many types of GNSS antennas have been developed in recent years to make them suitable for different applications. Since their designs and performance requirements vary depending on their application, they have been grouped into six different categories in this book: 1. The design and performance of each type of antenna will be described here and throughout the rest of the book. This chapter dis...

Numerous efforts have been undertaken to develop rectifying antennas operating at high frequencies, especially dedicated light harvesting and photodetection applications. However, the development of efficient frequency has a major technological challenge both due lack comprehension underlying physics limitations in fabrication techniques. Various rectification strategies implemented, including ...

Conformal antenna arrays have long represented an attractive solution to challenges imposed by electromagnetic aperture on aerospace platform. This allows designers trade between array positioning and geometry, avoids the significant aerodynamic drag of a planar array. is hampered expense design computational modelling required ensure that conformal will meet its performance requirements. The p...

The design strategy to stabilise the phase centre (PC) of conventional horn antenna using a shaped dielectric rod is presented for aperture efficiency improvement space-fed antennas. In most practical antennas, PC location has significant variations with frequency leading error loss and reduction over bandwidth interest. To overcome this drawback, based on physical reasoning, rods appropriate e...

Modern day systems often require reconfigurability in the operating parameters of the transmit and receive antennas, such as the resonant frequency, radiation pattern, impedance, or polarization. In this work a novel approach to antenna reconfigurability is presented by integrating antennas with the ancient art of origami. The proposed antenna consists of an inkjet printed center-fed spiral ant...