A Compact Filter-Bank Waveguide Spectrometer for Millimeter Wavelengths

Sean Bryan; George Che; Christopher Groppi; Philip Mauskopf; Matthew Underhill

doi:10.1109/TTHZ.2015.2433919

A Compact Filter-Bank Waveguide Spectrometer for Millimeter Wavelengths

Sean Bryan, George Che, Christopher Groppi, Philip Mauskopf, Matthew Underhill

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

In this paper, we present the design and measurements of a 90 GHz prototype of a millimeter-wave channelizing spectrometer realized in rectangular waveguide for astronomical instrumentation. The device was fabricated using conventional high-precision metal machining, and the spectrometer can be tiled into a 2D array to fill the focal plane of a telescope. Measurements of the fabricated five-channel device matched well with electromagnetic simulations using HFSS and a cascaded S-matrix approach. This motivated the design of a 54-channel R=200 spectrometer that fills the single-moded passband of rectangular waveguide in the 130-175 GHz and 190-250 GHz atmospheric windows for millimeter-wave spectroscopic mapping and multi-object spectroscopy.

Original language	English (US)
Article number	7120193
Pages (from-to)	598-604
Number of pages	7
Journal	IEEE Transactions on Terahertz Science and Technology
Volume	5
Issue number	4
DOIs	https://doi.org/10.1109/TTHZ.2015.2433919
State	Published - Jul 1 2015

Keywords

Millimeter-wave devices
Spectroscopy
channel bank filters
microwave filters
spectroradiometers

ASJC Scopus subject areas

Radiation
Electrical and Electronic Engineering

Access to Document

10.1109/TTHZ.2015.2433919

Cite this

@article{d3101a59aff04240a66e2a4bd8856489,

title = "A Compact Filter-Bank Waveguide Spectrometer for Millimeter Wavelengths",

abstract = "In this paper, we present the design and measurements of a 90 GHz prototype of a millimeter-wave channelizing spectrometer realized in rectangular waveguide for astronomical instrumentation. The device was fabricated using conventional high-precision metal machining, and the spectrometer can be tiled into a 2D array to fill the focal plane of a telescope. Measurements of the fabricated five-channel device matched well with electromagnetic simulations using HFSS and a cascaded S-matrix approach. This motivated the design of a 54-channel R=200 spectrometer that fills the single-moded passband of rectangular waveguide in the 130-175 GHz and 190-250 GHz atmospheric windows for millimeter-wave spectroscopic mapping and multi-object spectroscopy.",

keywords = "Millimeter-wave devices, Spectroscopy, channel bank filters, microwave filters, spectroradiometers",

author = "Sean Bryan and George Che and Christopher Groppi and Philip Mauskopf and Matthew Underhill",

note = "Publisher Copyright: {\textcopyright} 2011-2012 IEEE.",

year = "2015",

month = jul,

day = "1",

doi = "10.1109/TTHZ.2015.2433919",

language = "English (US)",

volume = "5",

pages = "598--604",

journal = "IEEE Transactions on Terahertz Science and Technology",

issn = "2156-342X",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "4",

}

TY - JOUR

T1 - A Compact Filter-Bank Waveguide Spectrometer for Millimeter Wavelengths

AU - Bryan, Sean

AU - Che, George

AU - Groppi, Christopher

AU - Mauskopf, Philip

AU - Underhill, Matthew

PY - 2015/7/1

Y1 - 2015/7/1

N2 - In this paper, we present the design and measurements of a 90 GHz prototype of a millimeter-wave channelizing spectrometer realized in rectangular waveguide for astronomical instrumentation. The device was fabricated using conventional high-precision metal machining, and the spectrometer can be tiled into a 2D array to fill the focal plane of a telescope. Measurements of the fabricated five-channel device matched well with electromagnetic simulations using HFSS and a cascaded S-matrix approach. This motivated the design of a 54-channel R=200 spectrometer that fills the single-moded passband of rectangular waveguide in the 130-175 GHz and 190-250 GHz atmospheric windows for millimeter-wave spectroscopic mapping and multi-object spectroscopy.

AB - In this paper, we present the design and measurements of a 90 GHz prototype of a millimeter-wave channelizing spectrometer realized in rectangular waveguide for astronomical instrumentation. The device was fabricated using conventional high-precision metal machining, and the spectrometer can be tiled into a 2D array to fill the focal plane of a telescope. Measurements of the fabricated five-channel device matched well with electromagnetic simulations using HFSS and a cascaded S-matrix approach. This motivated the design of a 54-channel R=200 spectrometer that fills the single-moded passband of rectangular waveguide in the 130-175 GHz and 190-250 GHz atmospheric windows for millimeter-wave spectroscopic mapping and multi-object spectroscopy.

KW - Millimeter-wave devices

KW - Spectroscopy

KW - channel bank filters

KW - microwave filters

KW - spectroradiometers

UR - http://www.scopus.com/inward/record.url?scp=85027940208&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85027940208&partnerID=8YFLogxK

U2 - 10.1109/TTHZ.2015.2433919

DO - 10.1109/TTHZ.2015.2433919

M3 - Article

AN - SCOPUS:85027940208

SN - 2156-342X

VL - 5

SP - 598

EP - 604

JO - IEEE Transactions on Terahertz Science and Technology

JF - IEEE Transactions on Terahertz Science and Technology

IS - 4

M1 - 7120193

ER -

A Compact Filter-Bank Waveguide Spectrometer for Millimeter Wavelengths

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this