By Hiroaki Kogure
Richly illustrated and written in an easy-to-comprehend kind, this hugely obtainable source presents amateur engineers and engineering scholars with a pretty good creation to using electromagnetics (EM) simulation in RF layout. Engineers methods to use EM software program to layout microwave circuits and to behavior sign integrity research of high-speed electronic circuits. This authoritative ebook describes precisely how microwave and high-speed electronic circuits function, providing practitioners transparent troubleshooting assistance for his or her paintings with those circuits. execs and scholars additionally take advantage of an intensive evaluation of the big variety of high-frequency circuits and comparable EM instruments being used in the sphere this day. DVD is incorporated! This name comprises Sonnet RF circuit research software program, that includes instance documents which are defined and illustrated within the publication.
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Extra resources for Introduction to RF Design Using EM Simulators (Artech House Microwave Library)
We need to quantitatively evaluate how much of the input signal gets reflected. This is where we use the reflection coefficient. 8 is a model of an MSL that has a right-angle bend. The dimension of the substrate is 30 mm × 30 mm, which is larger than the MSL in the previous section. 9 shows the results of reflection coefficient, S11, and transmission coefficient, S21, of this MSL. 0 is total reflection. When the magnitude is close to 0, then almost no power is reflected from the input port. For this case, we see that S11 goes up and down repeatedly.
At this frequency, we can see that the radiating pattern is complicated. 24 displays the radiation pattern at 500 MHz. In this case, the transmission line is shorter than the wavelength, and because of this the radiation pattern must be smooth and simple. 25, has a section removed so we can see more detail in several planes. At this high frequency, the radiation is complicated. The distance between the ground and Vcc plane is large enough that they start acting like an aperture antenna (satellite dishes and horn antennas are other examples of aperture antennas).
24 appears. Select Copper and click OK. 25. You are now allowed to specify copper in your circuits. 26 is displayed. Change the Metal from Lossless to Copper. 27. The dielectric of our substrate is defined here. Here, we see the substrate stackup. In this case, there are only two dielectric layers in the stackup. 27 Define the substrate dielectric stackup. 28 Define the characteristics of the dielectric substrate. Electricity with Good Manners 21 layers are referred to as levels. With two layers, we have only one level, level 0.