Publication: The experimental demonstration of a low-cost 37-horn focal-plane array consisting of smooth-walled multiple flare-angle horns fabricated by direct drilling
Issued Date
2011-01-01
Resource Type
Other identifier(s)
2-s2.0-84896902239
Rights
Mahidol University
Rights Holder(s)
SCOPUS
Bibliographic Citation
22nd International Symposium on Space Terahertz Technology 2011, ISSTT 2011. (2011), 139-142
Suggested Citation
J. Leech, B. K. Tan, G. Yassin, P. Kittara, S. Wangsuya The experimental demonstration of a low-cost 37-horn focal-plane array consisting of smooth-walled multiple flare-angle horns fabricated by direct drilling. 22nd International Symposium on Space Terahertz Technology 2011, ISSTT 2011. (2011), 139-142. Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/11808
Research Projects
Organizational Units
Authors
Journal Issue
Thesis
Title
The experimental demonstration of a low-cost 37-horn focal-plane array consisting of smooth-walled multiple flare-angle horns fabricated by direct drilling
Author(s)
Other Contributor(s)
Abstract
In previous work, we have described novel smoothwalled multiple flare-angle horns designed using a genetic algorithm. A key feature of these horns is that they can be manufactured very rapidly and cheaply in large numbers, by repeated direct drilling into a single plate of aluminium using a shaped machine tool. The rapid manufacturing technique will enable the construction of very low cost focal-plane arrays, offering an alternative to conventional electroformed corrugated horn arrays. In order to experimentally demonstrate the new technology, we constructed a 230 GHz focal-plane array comprising 37 smooth-walled horns fabricated by direct drilling. We present the measured beam patterns for a large sample of these horns across the array, demonstrating the suitability of our manufacturing techniques for large format arrays. We have measured the cross coupling between adjacent feeds and have shown that it is negligible. We also present high quality beam patterns measured for a much smaller 700 GHz horn, showing the promise of extending this technology to THz frequencies.