1 The issue or topic may be set forth as a topical question, a hypothetical incident, a student experience, an actual case, etc. 2  Select panelists who are well informed about and have specific points of view regarding the issue or topic. 3  A panel discussion that includes three to five panelists is usually most workable.
A: Typically, they are constructed with PIN diodes. A PIN diode is simply a p-n junction diode that is designed to. have a very small junction capacitance (0.01 to 0.1 pf). A Sort of the opposite of the varactor diode! To see why this is important, recall diode small signal analysis. from your first electronics course.
The PIN diode differs from the basic PN junction diode in that the PIN diode includes a layer of intrinsic material between the P and N layers. As a result of the intrinsic layer, PIN diodes have a high breakdown voltage and they also exhibit a low level of junction capacitance.