UNIT-II

4. The ratio of power incident to the power transmitted in main arm.
5. These are fixed or adjustable projections from the walls of waveguide.
7. It is a ferrite device which transmits electromagnetic wave only in one direction
9. It is a measure of how much of incident power is being sampled
12. Matrix which shows a linear relationship between coefficients of the ports
14. It is a device used to control the amount of microwave power transferred from one point to another
15. It is four port microwave device has a peculiar property

1. Isolation measures the directive properties of directional coupler
2. These are used to couple sections of waveguide and other passive components
3. The sum of the products of each term of any row or column of multiplied by the complex conjugate of the corresponding terms of any other row is zero.
6. It is a measure of how well the directional coupler distinguishes between the forward and reverse travelling power
8. It is used to detect low frequency square wave modulating signal
10. It is a device that produces a variable change in phase of an electromagnetic wave transmitted through it
11. The sum of the products of each term of any row or column of S- matrix multiplied by its complex conjugate is unity.
13. It is a combination of the E plane tee and H plane tee.