Discussion
How is polarisation measured on an antenna range?
Answer: B
Rotating a linear source antenna about the line of sight traces out the polarisation pattern, whose maximum to minimum ratio is the axial ratio and whose orientation gives the tilt angle. A spinning dipole recorded against angle is the classical implementation. Frequency comparison, impedance measurement and pattern integration measure other things entirely. Measuring a vector property requires varying the orientation of the reference, which is what the rotation provides.
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