*Question E9B05:
What type of antenna pattern is shown in Figure E9-2?*  

*Correct Answer is  A: Elevation*  

### AI Response: (may contain errors)  

To determine the type of antenna pattern shown in Figure E9-2, we need to understand the different types of antenna patterns:

1. **Elevation Pattern**:
   - An elevation pattern shows how the antenna radiates energy vertically. It is a vertical slice through the radiation pattern, typically showing how the signal strength varies with elevation angle above the horizon.
   - This pattern is useful for understanding how an antenna radiates energy at different heights, which is crucial for applications like satellite communication or long-distance terrestrial communication.

2. **Azimuth Pattern**:
   - An azimuth pattern shows how the antenna radiates energy horizontally. It is a horizontal slice through the radiation pattern, typically showing how the signal strength varies with azimuth angle around the antenna.
   - This pattern is useful for understanding how an antenna radiates energy in different compass directions.

3. **Near Field**:
   - The near field is the region close to the antenna where the electromagnetic field does not behave like a simple radiating wave. Patterns in this region are complex and not typically represented by simple 2D plots like elevation or azimuth patterns.

4. **Polarization**:
   - Polarization refers to the orientation of the electric field of the radiated waves. It is not represented by a radiation pattern plot but rather by a description (e.g., vertical, horizontal, circular).

**Correct Answer: Elevation**

- The correct answer is **Elevation** because the pattern in Figure E9-2 likely shows how the antenna radiates energy at different angles above the horizon, which is characteristic of an elevation pattern.

**Why Other Choices Are Incorrect**:

- **Azimuth**: This would show a horizontal radiation pattern, not a vertical one.
- **Near Field**: This is not typically represented by a simple 2D pattern like those in the exam figures.
- **Polarization**: This is not depicted by a radiation pattern plot but rather described in terms of wave orientation.

In summary, the elevation pattern is the correct choice because it represents the vertical distribution of radiated energy, which is what Figure E9-2 is likely illustrating.