Magic Tee can produce

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ISRO Scientist Electronics 2024 Official Paper
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  1. Sum and difference of signals
  2. Oscillations
  3. Amplification
  4. Only difference of signals

Answer (Detailed Solution Below)

Option 1 : Sum and difference of signals
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Detailed Solution

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Explanation:

Magic Tee

Definition: A Magic Tee, also known as a hybrid tee, is a specialized microwave junction used in waveguide technology. It combines the functionalities of two types of tees: the E-plane tee and the H-plane tee. The Magic Tee is widely used in microwave systems for splitting, combining, and analyzing signals. It is so named because of its unique ability to produce the sum and difference of two input signals simultaneously, which is critical in applications such as radar systems, mixers, and power dividers.

Working Principle: A Magic Tee has four ports:

  • Port 1: The H-plane port, also known as the "sum port."
  • Port 2: The E-plane port, also called the "difference port."
  • Port 3 and Port 4: The collinear arms, where the input signals are usually applied.

The operation of a Magic Tee is based on the principle of constructive and destructive interference of electromagnetic waves. When signals are fed into the collinear arms (Port 3 and Port 4):

  • The sum of the two signals is produced at the H-plane port (Port 1).
  • The difference of the two signals is produced at the E-plane port (Port 2).

This unique property makes the Magic Tee an essential component in microwave circuits for signal processing tasks.

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