Optimization and measurement of a smoothly profiled horn for a W-band gyro-TWA

Liang Zhang; Wenlong He; Craig R. Donaldson; Graham M. Smith; Duncan A. Robertson; Robert I. Hunter; Adrian W. Cross

doi:10.1109/TED.2017.2687949

Optimization and measurement of a smoothly profiled horn for a W-band gyro-TWA

Liang Zhang, Wenlong He, Craig R. Donaldson, Graham M. Smith, Duncan A. Robertson, Robert I. Hunter, Adrian W. Cross

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Abstract

In this paper, a smoothly profiled horn was designed and manufactured to replace a corrugated output horn for a W-band gyro-TWA with improved ultra-high vacuum compatibility. It was optimized for high vacuum integrity, low reflection, high fundamental Gaussian mode content, low side lobe levels and high directivity over the frequency bandwidth of 90 - 100 GHz. Over this operating frequency band the reflectivity was better than -37 dB and the coupling to a fundamental Gaussian mode was above 97%. The far field pattern showed a directivity of approximately 27 dB in the measurement with side lobes lower than -30 dB.

Original language	English
Pages (from-to)	1-6
Number of pages	6
Journal	IEEE Transactions on Electron Devices
Early online date	5 May 2017
DOIs	https://doi.org/10.1109/TED.2017.2687949
Publication status	E-pub ahead of print - 5 May 2017

Keywords

horn
smoothly profiled horn
gyro-TWA
Gaussian mode

Access to Document

10.1109/TED.2017.2687949

Zhang-etal-TED2017-Optimization-and-measurement-of-a-smoothly-profiled-hornAccepted author manuscript, 1.52 MB

Cite this

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title = "Optimization and measurement of a smoothly profiled horn for a W-band gyro-TWA",

abstract = "In this paper, a smoothly profiled horn was designed and manufactured to replace a corrugated output horn for a W-band gyro-TWA with improved ultra-high vacuum compatibility. It was optimized for high vacuum integrity, low reflection, high fundamental Gaussian mode content, low side lobe levels and high directivity over the frequency bandwidth of 90 - 100 GHz. Over this operating frequency band the reflectivity was better than -37 dB and the coupling to a fundamental Gaussian mode was above 97%. The far field pattern showed a directivity of approximately 27 dB in the measurement with side lobes lower than -30 dB. ",

keywords = "horn, smoothly profiled horn, gyro-TWA, Gaussian mode",

author = "Liang Zhang and Wenlong He and Donaldson, {Craig R.} and Smith, {Graham M.} and Robertson, {Duncan A.} and Hunter, {Robert I.} and Cross, {Adrian W.}",

note = "{\textcopyright} 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.",

year = "2017",

month = may,

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doi = "10.1109/TED.2017.2687949",

language = "English",

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AU - Donaldson, Craig R.

AU - Smith, Graham M.

AU - Robertson, Duncan A.

AU - Hunter, Robert I.

AU - Cross, Adrian W.

N1 - © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

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Y1 - 2017/5/5

N2 - In this paper, a smoothly profiled horn was designed and manufactured to replace a corrugated output horn for a W-band gyro-TWA with improved ultra-high vacuum compatibility. It was optimized for high vacuum integrity, low reflection, high fundamental Gaussian mode content, low side lobe levels and high directivity over the frequency bandwidth of 90 - 100 GHz. Over this operating frequency band the reflectivity was better than -37 dB and the coupling to a fundamental Gaussian mode was above 97%. The far field pattern showed a directivity of approximately 27 dB in the measurement with side lobes lower than -30 dB.

AB - In this paper, a smoothly profiled horn was designed and manufactured to replace a corrugated output horn for a W-band gyro-TWA with improved ultra-high vacuum compatibility. It was optimized for high vacuum integrity, low reflection, high fundamental Gaussian mode content, low side lobe levels and high directivity over the frequency bandwidth of 90 - 100 GHz. Over this operating frequency band the reflectivity was better than -37 dB and the coupling to a fundamental Gaussian mode was above 97%. The far field pattern showed a directivity of approximately 27 dB in the measurement with side lobes lower than -30 dB.

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KW - gyro-TWA

KW - Gaussian mode

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JF - IEEE Transactions on Electron Devices

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Optimization and measurement of a smoothly profiled horn for a W-band gyro-TWA

Abstract

Keywords

Access to Document

Other files and links

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CW operation of 94GHz Gyro-TWA for telecommunications applications (IPS Proposal%)

Development of a W-band gyro-amplifier for high power, wideband pulsed coherent applications

Cite this

Optimization and measurement of a smoothly profiled horn for a W-band gyro-TWA

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Projects

CW operation of 94GHz Gyro-TWA for telecommunications applications (IPS Proposal%)

Development of a W-band gyro-amplifier for high power, wideband pulsed coherent applications

Cite this