11. Insertion loss is a figure of merit for an electronic filter and this data is generally specified with a filter.12. The second challenge to keep the power transfer efficient, is to keep the insertion loss as low as possible. 13. In this case, the insertion loss is positive and measures how much smaller the signal is after adding the filter. 14. In case the two measurement ports use the same reference impedance, the insertion loss ( IL ) is defined as: 15. Isolation can be improved at the expense of insertion loss at both output ports by replacing the output resistors with T pads. 16. The isolator provides a low insertion loss from the SLED to the fiber and a high insertion loss in the back direction. 17. The isolator provides a low insertion loss from the SLED to the fiber and a high insertion loss in the back direction. 18. Certain devices can also allow a feedhorn to accept both linear and circular, though these cause a slight insertion loss to all incoming signals. 19. Waffle-iron filters are used where both a wide passband with low insertion loss , and a wide ( sometimes very wide ) stopband are needed. 20. In a real directional coupler, however, the insertion loss consists of a combination of coupling loss, dielectric loss, conductor loss, and VSWR loss.
