Abstract
Two designs of fundamental mode rectangular to circular waveguide TE10 to TE11 mode converter are presented. The waveguide transitions are optimized for operation as an input coupler on a 372 GHz gyro-TWA for Dynamic Nuclear Polarization (DNP) enhancement of NMR imaging. A T-junction input coupler and a multiple hole directional coupler were optimized for operation between 360-384 GHz. The T-junction coupler and the multiple hole coupler exhibited bandwidths of 10% and 35% respectively with a high coupling factor of > -1 dB.
| Language | English |
|---|---|
| Title of host publication | 41st International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2016 |
| Place of Publication | Piscataway |
| Number of pages | 2 |
| ISBN (Electronic) | 9781467384858 |
| DOIs | |
| Publication status | Published - 1 Dec 2016 |
| Event | 41st International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2016 - Bella Center, Copenhagen, Denmark Duration: 25 Sep 2016 → 30 Sep 2016 http://terahertz.dk/irmmwthz2016/ http://www.irmmw-thz2016.org/ |
Publication series
| Name | Proceedings International Conference on Infrared, Millimeter, and Terahertz Waves |
|---|---|
| Publisher | IEEE |
| ISSN (Print) | 2162-2035 |
Conference
| Conference | 41st International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2016 |
|---|---|
| Abbreviated title | IRMMW-THz 2016 |
| Country | Denmark |
| City | Copenhagen |
| Period | 25/09/16 → 30/09/16 |
| Internet address |
Fingerprint
Keywords
- couplers
- couplings
- bandwidth
- rectangular waveguides
- waveguide transitions
- resonant frequency
- multiple hole coupler
- multiple hole directional coupler
- T-junction input coupler
- NMR imaging
- dynamic nuclear polarization
- gyro-TWA
- gyrotron-travelling wave amplifier
Cite this
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Simulation of rectangular TE10 to circular TE11 terahertz mode converters. / Garner, J. R.; Zhang, L.; Donaldson, C. R.; Cross, A. W.; Phelps, A. D. R.; He, W.
41st International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2016. Piscataway, 2016. 7758520 (Proceedings International Conference on Infrared, Millimeter, and Terahertz Waves).Research output: Chapter in Book/Report/Conference proceeding › Conference contribution book
TY - GEN
T1 - Simulation of rectangular TE10 to circular TE11 terahertz mode converters
AU - Garner, J. R.
AU - Zhang, L.
AU - Donaldson, C. R.
AU - Cross, A. W.
AU - Phelps, A. D. R.
AU - He, W.
N1 - © 2016 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.
PY - 2016/12/1
Y1 - 2016/12/1
N2 - Two designs of fundamental mode rectangular to circular waveguide TE10 to TE11 mode converter are presented. The waveguide transitions are optimized for operation as an input coupler on a 372 GHz gyro-TWA for Dynamic Nuclear Polarization (DNP) enhancement of NMR imaging. A T-junction input coupler and a multiple hole directional coupler were optimized for operation between 360-384 GHz. The T-junction coupler and the multiple hole coupler exhibited bandwidths of 10% and 35% respectively with a high coupling factor of > -1 dB.
AB - Two designs of fundamental mode rectangular to circular waveguide TE10 to TE11 mode converter are presented. The waveguide transitions are optimized for operation as an input coupler on a 372 GHz gyro-TWA for Dynamic Nuclear Polarization (DNP) enhancement of NMR imaging. A T-junction input coupler and a multiple hole directional coupler were optimized for operation between 360-384 GHz. The T-junction coupler and the multiple hole coupler exhibited bandwidths of 10% and 35% respectively with a high coupling factor of > -1 dB.
KW - couplers
KW - couplings
KW - bandwidth
KW - rectangular waveguides
KW - waveguide transitions
KW - resonant frequency
KW - multiple hole coupler
KW - multiple hole directional coupler
KW - T-junction input coupler
KW - NMR imaging
KW - dynamic nuclear polarization
KW - gyro-TWA
KW - gyrotron-travelling wave amplifier
UR - http://www.scopus.com/inward/record.url?scp=85006100849&partnerID=8YFLogxK
UR - http://www.irmmw-thz2016.org/
U2 - 10.1109/IRMMW-THz.2016.7758520
DO - 10.1109/IRMMW-THz.2016.7758520
M3 - Conference contribution book
T3 - Proceedings International Conference on Infrared, Millimeter, and Terahertz Waves
BT - 41st International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2016
CY - Piscataway
ER -