ÿþ<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" > <html> <head> <title>Institute for ElectroMagnetic Research / Our Products / Programmble Microwave Generator </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> > Programmble Microwave Generator for Combined Sequence of Stochastic and Radio Pulses</h3> <hr> <p>A programmable and high-stability  SG-2 generator used for production of CW- and pulse-modulated microwave signals has 16 channels. The operating frequency range is 0.8&#247;8.8 GHz. <p> <p>The operating frequencies of the generators and tuning ranges are given in the Table. <p> <h3 align="center"> Table 1.</h3> <table align="center" border="1"> <title>Table </title> <tr align="center"> <td>&nbsp;Channel number&nbsp;</td> <td>&nbsp;Medium frequency, GHz&nbsp;</td><td>&nbsp; Tuning range, GHz&nbsp; </td><td>&nbsp;Bandwidth, MHz&nbsp; </td> </tr> <tr align="center"><td>1</td><td> 0.9</td> <td>0.7&#247;1.1</td><td> 400</td></tr> <tr align="center"><td>2</td><td> 1.25</td><td> 1.05&#247;1.45</td><td>400</td></tr> <tr align="center"><td>3</td><td>1.65</td><td>1.4&#247;1.9</td><td>500</td></tr> <tr align="center"><td>4</td><td>2.2</td><td>1.85&#247;2.55</td><td> 700</td></tr> <tr align="center"><td>5</td><td> 2.9</td><td>2.5&#247;3.3</td><td>800</td></tr> <tr align="center"><td>6</td><td>3.525</td><td>3.25&#247;3.8</td><td>550</td></tr> <tr align="center"><td>7</td><td> 4.025</td><td>3.75&#247;4.3</td><td>550</td></tr> <tr align="center"><td>8</td><td>4.525</td><td>4.25&#247;4.8</td><td> 550</td></tr> <tr align="center"><td>9</td><td> 5.025</td><td>4.75&#247;5.4</td><td>650</td></tr> <tr align="center"><td>10</td><td> 5.525</td><td>5.25&#247;5.8</td><td>550</td></tr> <tr align="center"><td>11</td><td> 6.025</td><td>5.75&#247;6.3</td><td>550</td></tr> <tr align="center"><td>12</td><td> 6.525</td><td>6.25&#247;6.8</td><td>550</td></tr> <tr align="center"><td>13</td><td> 7.025</td><td>6.75&#247;7.3</td><td>550</td></tr> <tr align="center"><td>14</td><td>7.525</td><td>7.25&#247;7.8</td><td>550</td></tr> <tr align="center"><td>15</td><td> 8.025</td><td>7.75&#247;8.3 </td><td>550</td></tr> <tr align="center"><td>16</td><td> 8.5</td><td>8.2&#247;8.8</td><td>600</td></tr> </table> <p>Each of the 16 channels of the generator includes a microwave oscillator, tunable in the ranges as indicated in Table 1, and a stochastic generator, as well, which is operable in the same range. Frequency tuning in each of the channels of  SG-2 generator is done discretely with a pitch of 1 MHz. </p> <p>The continuous power output of CW- and stochastic microwave signals of  SG-2 generator for each of the 16 channels is 0.5 W. </p> <p>The power output is adjusted smoothly within the limits of 0&#247;20 dB.</p> <p> SG-2 generator operates both in static and dynamic modes. </p> <p>In the dynamic mode,  SG-2 generator forms non-periodic and periodic sequences of the stochastic and microwave radio-pulses, as commanded by CPU program. <p> <p>Leading edges of the microwave signals do not exceed 10 ns.<p> <p>The minimum pulse width is 50 ns.</p> <p>The number of pulses in one sequence does not exceed 1024. </p> <p> SG-2 generator is computer-controlled according to a dedicated program. Information about the frequency and power of microwave signal comes to the computer. </p> <p> SG-2 generator has a separate power supply unit which is operable from the mains 220 V, 50 Hz. </p> <p>The generator was manufactured on the component base of such companies as Fujitsu, Analog Devices, Toshiba, Philips.</p> <p> Fig. 1 shows a photographic image of  SG-2 generator and its power supply unit. </p> <table border="0" align="center" width="80%"> <tr align="center"> <td>&nbsp;</td> <td><a href="./Figures/sg-2.jpg"><img src="./Figures/ssg-2.jpg" width="300" height="258" border="0"/></a></td> <td>&nbsp;</td></tr> <tr align="center"><td>&nbsp;</td><td>Fig. 1.  SG-2 generator.</td><td>&nbsp;</td></tr> </table> <p> SG-2 generator can be used in scientific research on problems of electromagnetic compatibility. </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>