Access to eBooks is limited to institutions that have purchased or currently subscribe to the SPIE eBooks program. eBooks are not available via an individual subscription. SPIE books (print and digital) may be purchased individually on SPIE.Org.

Contact your librarian to recommend SPIE eBooks for your organization.
Abstract
A physical optics approach has been found to be very fruitful in designing antennas that make use of the diffraction phenomenon. Flexibility in forming a desired wavefront is achieved by creating a complex diffraction grating, also known as holographic beam forming. Based on this notion, a new type of electronically controlled beam former has been demonstrated. The device operation is based on a real-time reconfigurable hologram formed by electron-hole plasma injected into a planar semiconductor waveguide. The device operates at millimeter-wave frequencies and is capable of forming a wavefront with an arbitrary profile. Digital control is achieved through the use of a millimeter wave/microwave integrated circuit (MMIC) design that holds the promise of unparalleled cost effectiveness. Potential applications include smart antennas, imaging radar, and communications.
Online access to SPIE eBooks is limited to subscribing institutions.
CHAPTER 8
10 PAGES


SHARE
Back to Top