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.
Diode is an unipolar device, i.e. it has a p-type side and a n-type side, and their connection matters. Forward Bias: When the p-type side of the diode is connected to a higher potential than the n-type side, the diode is said to be forward biased, because it enhances the capability of the diode to conduct forward current.