Smooth‐walled spline‐profile Ka‐band horn covering both the full commercial and military bands

Abstract

As an alternative to the corrugated horn, a low‐cost smooth‐walled spline‐profile horn has been designed to cover the complete Ka‐band satellite bands. This new horn is used as a feed in a typical dual‐reflector antenna to demonstrate the overall antenna system meets the usual performance requirements. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 2119–2121, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23551

Profiled Horn Antenna with Wideband Capability Targeting Sub-THz Applications

“…As compared to the spline profile [9,15], the profile using polynomial interpolation has more degrees of freedom with less intermediate node points and this aspect is very important to reduce computation time. To develop a similar kind of curved/wavy profile as the one we are presenting in the following paragraphs, having a comparable performance with spline interpolation, at least 9 node points (7 intermediate and 2 end node points) are required, which increases the optimization time and resources if spline profile design method is to be used.…”

“…However, due to a complex mode-converter structure, the radial corrugated horn design becomes challenging especially at millimeter and submillimeter waves [9] and terahertz frequencies [10]. Some of the alternative solutions are axial corrugated horn [11,12], hybrid corrugated horn [13,14], spline profiled horn [9,15], and horn antennas designed using interpolation [16]. All such configurations have their merits and drawbacks in terms of performance, fabrication complexity, cost, computational effort, etc.…”