ÿþ<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" > <html> <head> <title>Institute for ElectroMagnetic Research / Our Products / Chaffs of Complicated Form </title> <meta http-equiv="Content-Type" content="text/html; charset=Windows-1252"> <meta name= "Description" content="Powerful microwave oscillators"> <meta name="Keywords" content="IEMR - Microwave Oscillators, MILO, MCG"> <link rel="stylesheet" href="style/institute.css" type="text/css"> </head> <body> <table width="90%"> <tr><td> <h3><a href="home_page.htm" >Home Page</a> > <a href="our_prod.htm" >Our Products</a> > Chaffs of Complicated Form </h3> <hr> <p>Our proprietary dedicated shape radiolocation reflectors are intended for use both in upper and lower atmosphere.</p> <p>Owing to their displaced center-of-gravity and dedicated shape these reflectors form clouds in which each separate reflector follows a very intricate trajectory, while the reflectors ensure the effective Doppler spectrum of signal scattered and reflected. </p> <p>The dedicated shape of the reflectors ensures an effective operation across a wide frequency range of incident radar radiation and a weak dependence of the propagation trajectory on atmospheric flow characteristics when the reflectors are being dispersed in low atmosphere.</p> <table border="0" align="center" width="80%"> <tr align="center"> <td>&nbsp;</td> <td><a href="./Figures/chaffs.jpg"><img src="./Figures/schaffs.jpg" width="300" height="220" border="0"/></a></td> <td>&nbsp;</td> <tr align="center"><td>&nbsp;</td><td align="center">Fig. 1. Photographic image of one of the types of dedicated shape radiolocation reflectors.</td><td>&nbsp;</td></tr> </table> <p>Certain characteristics of a given reflector assume the following values: </p> <table align=align="center" border="0"> <tr><td>Maximum length </td><td>&nbsp;</td> <td> 18.1 mm </td></tr> <tr><td>Maximum breadth </td><td>&nbsp;</td> <td> 5.8 mm </td></tr> <tr><td>Maximum thickness </td><td>&nbsp;</td> <td> 0.9 mm </td></tr> <tr><td>Maximum ESR value of one reflector </td><td>&nbsp;</td> <td> 0.0015 m<SUP>2</SUP> </td></tr> <tr><td>Frequency range of the most effective work of the reflector </td><td>&nbsp;</td> <td> 8.3...9.1 GHz </td></tr> </table> <p>The reflectors are made of various metals, plastics and smart materials enabling to displace the center-of-gravity and sophisticate the trajectory, as the reflector moves, after dispersal.</p> <p>Due to their low weight and dedicated shape, the reflectors of this type can stay in atmosphere for quite a long time. </p> </td></tr></table> <table border="0" align="left" width="90%"> <tr><td> <hr> </td></tr> <tr><td align="center"> <a href="information.htm" target="mainFrame" >Information about IEMR</a> &nbsp; <a href="departments.htm" target="mainFrame" >Departments</a> &nbsp; <a href="our_prod.htm" target="mainFrame" > Products</a> &nbsp; <a href="our_res.htm" target="mainFrame" > Research Projects </a> </td></tr> <tr><td align="center"> <a href="http://www.emph.com.ua" target="_blank" >Electromagnetic Phenomena Journal</a> &nbsp; <a href="Address.htm" target="mainFrame" >Contact us </a> </td></tr> </table> </body> </html>