The center of the transmitted lobe from a...

The center of the transmitted lobe from a...

Question 1 of 27070kch0M7sUvUTF9snl1EAC

The center of the transmitted lobe from a slotted waveguide array is:

Question 1 of 27070

Q

The center of the transmitted lobe from a slotted waveguide array is:

🔍 Key Concepts

• Slotted waveguide array radiation pattern and what the main (transmitted) lobe represents • The difference between an ideal broadside array and a real, practical antenna • How slot spacing and waveguide end effects can shift the direction of maximum radiation

💭 Think About

• If an array is designed for broadside radiation, where would you expect the main lobe to point relative to the antenna? • In practice, does the maximum radiation of a slotted waveguide array line up exactly with the perpendicular, or can it be shifted slightly? If shifted, is it described as a direction or a specific end? • Look at the wording of the options: which describe a general directional offset, and which suggest the maximum is concentrated at just one physical end of the antenna?

✅ Before You Answer

• Verify how ‘broadside’ is defined for an antenna array (relative to a line perpendicular to the array). • Check whether standard texts on marine radar slotted waveguide arrays mention the main beam being exactly perpendicular or slightly offset by a few degrees. • Confirm that the center of the transmitted lobe refers to the direction of maximum radiation in space, not to a physical point along the antenna length.