THz smooth-walled spline horn antennas: Design, manufacturing and measurements
Paper in proceedings, 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)

1341-1342

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

More information

Latest update

9/6/2018 1