Getting started with microwave office英文电子书.pdf

Getting started with microwave office The following instructions allow the user to use some of the facilities of microwave office. The following microstrip lowpass filter is studied. Width W2 Width W4 l1 l3 l3 l1 1 2 Width l2 l4 l2 Width W3 Figure 1 Low pass filter The initial values of the length and widths have been calculated for a filter with cut of frequency of 1GHz and are given below. l1= 15000 W1=1115 l2=4550 W2=3722 l3=11780 W3=144 l4=13650 W4=3722 Table 1 Values of parameters The filter is designed on Duroid with thickness 1.27mm, permitivity 10.8 and copper thickness 35µm Circuit simulation The first part is to simulate the frequency response of this filter using circuit techniques. • Start Microwave Office under windows 95 by going to the Start menu and looking under the Programs submenu The initial screen shows an explorer bar to the left and a blank window on the right. There is an array of buttons and a menu at the top. The explorer window has