Post Your Answer
2 years ago in Material Science By Meera
For a mast-mounted LPDA covering 100–1000 MHz, how do I choose between aluminum and copper tubing, considering mechanical strength, weight, corrosion, and RF performance?
I'm constructing a large, high-power LPDA for field use. Copper has superior conductivity, but aluminum is lighter and cheaper. At HF/VHF/UHF frequencies, does the skin effect make the bulk conductivity difference negligible if I use tubing of the same outer diameter? Should I be more concerned about galvanic corrosion at joints, the strength-to-weight ratio for a long boom, or the RF loss difference over a decade bandwidth? What are the best practices for joints and connections with each material?
All Answers (1 Answers In All)
By Vipin Mittal Answered 1 year ago
Â
Reply to Vipin Mittal
Related Questions