Access to SPIE eBooks is limited to subscribing institutions. Access is not available as part of an individual subscription. However, books can be purchased on SPIE.Org
Chapter 8:
Millimeter Wave MMIC Hologram Beam Former
Editor(s): Tomasz P. Jannson
Author(s): Sadovnik, Lev, Sierra Nevada Corp.; Manasson, Vladimir A., Waveband Corp.
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