THz smooth-walled spline horn antennas: Design, manufacturing and measurements
Paper in proceeding, 2016
We describe a versatile and cost-efficient method for producing smooth-walled spline horn antennas for applications in THz radiometry. Specifically, the development of four different horns for radiometer receiver applications at frequencies 120, 183, 340 and 874 GHz is presented. General methods for efficient optimization of the spline profiles have been developed which enable the horn designs to be tailored to each application. All four designs display high Gaussicity (typically ∼98%). Manufacturing methods based on numerical milling in splitblocks, lathing and drilling have been tested and compared. Milled splitblock horns with integrated receiver circuits (Shottky mixers in this case) allow for lower losses in the receiver system at the expense of higher cross-polarization levels. The radiation pattern of three designs at 183, 340 and 874 GHz have been measured using planar and rotational scanners.
Receivers
Splines (mathematics)
Antenna measurements
Horn antennas
Instruments
Mixers
Author
Arvid Hammar
Omnisys Instruments
Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory
Daniel Nyberg
Omnisys Instruments
Yogesh Karandikar
Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics
Peter Sobis
Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory
GigaHertz Centre
Oscar Tropp
Omnisys Instruments
Per Forsberg
Omnisys Instruments
Steven McCallion
Omnisys Instruments
Anders Emrich
Omnisys Instruments
Jan Stake
Chalmers, Microtechnology and Nanoscience (MC2), Terahertz and Millimetre Wave Laboratory
GigaHertz Centre
2016 IEEE Antennas and Propagation Society International Symposium, APSURSI 2016, Fajardo, Puerto Rico, 26 June - 1 July 2016
1947-1491 (eISSN)
1341-1342978-1-5090-2886-3 (ISBN)
Areas of Advance
Information and Communication Technology
Infrastructure
Kollberg Laboratory
Subject Categories
Other Electrical Engineering, Electronic Engineering, Information Engineering
DOI
10.1109/APS.2016.7696378
ISBN
978-1-5090-2886-3