Discussion
Why are alternate slots in a resonant slotted waveguide array offset to opposite sides?
Answer: D
The wall current reverses every half guide wavelength, so placing successive slots on opposite sides of the centre line restores them all to the same radiating phase and produces a broadside beam. It is a geometric solution to a phase problem. Mechanical stress, independent tuning and bandwidth staggering are not the reason, though the last is a technique used in some non-resonant designs. Recognising that geometry can supply phase as effectively as a cable length is the general lesson.
No comment is present. Be the first to comment.
Loading…
Post your comment
Please log in or register to post a comment.
Examination Categories
- SSC Exams
- Banking Exams
- Teaching Exams
- Civil Services Exams
- Railways Exams
- Engineering Recruitment Exams
- Defence Exams
- State Government Exams
- Police Exams
- Insurance Exams
- Nursing Exams
- Other Government Exams
- NRA CET
- PG Entrance Exams
- Campus Placement
- MBA Entrance Exams
- CUET and UG Entrance
- Judiciary Exams
- Regulatory Body Exams
- Software Development