THz smooth-walled spline horn antennas: Design, manufacturing and measurements
Paper i 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.

Antenna measurements

Splines (mathematics)

Instruments

Mixers

Horn antennas

Receivers

Författare

Arvid Hammar

Chalmers, Mikroteknologi och nanovetenskap (MC2), Terahertz- och millimetervågsteknik

Daniel Nyberg

Omnisys Instruments AB

Yogesh Karandikar

Chalmers University of Technology

Peter Sobis

GigaHertz Centrum

Chalmers, Mikroteknologi och nanovetenskap (MC2), Terahertz- och millimetervågsteknik

Oscar Tropp

Omnisys Instruments AB

Per Forsberg

Omnisys Instruments AB

Steven McCallion

Omnisys Instruments AB

Anders Emrich

Omnisys Instruments AB

Jan Stake

Chalmers, Mikroteknologi och nanovetenskap (MC2), Terahertz- och millimetervågsteknik

GigaHertz Centrum

2016 IEEE Antennas and Propagation Society International Symposium, APSURSI 2016, Fajardo, Puerto Rico, 26 June - 1 July 2016

1947-1491 (eISSN)

1341-1342

Styrkeområden

Informations- och kommunikationsteknik

Infrastruktur

Kollberglaboratoriet

Ämneskategorier

Annan elektroteknik och elektronik

DOI

10.1109/APS.2016.7696378

ISBN

978-1-5090-2886-3