Abstract
| Language | English |
|---|---|
| Pages | 094702 |
| Number of pages | 10 |
| Journal | Review of Scientific Instruments |
| Volume | 81 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 17 Sep 2010 |
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Keywords
- circular waveguides
- rectangular waveguides
- optical waveguides
- convertors
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A novel cylindrical TE2,1 mode converter. / Constable, D. A.; Fampris, X. S.; Ronald, K.; He, W.; Whyte, C. G.; Robertson, C. W.
In: Review of Scientific Instruments, Vol. 81, No. 9, 17.09.2010, p. 094702.Research output: Contribution to journal › Article
TY - JOUR
T1 - A novel cylindrical TE2,1 mode converter
AU - Constable, D. A.
AU - Fampris, X. S.
AU - Ronald, K.
AU - He, W.
AU - Whyte, C. G.
AU - Robertson, C. W.
PY - 2010/9/17
Y1 - 2010/9/17
N2 - A novel, compact arrangement for Ka-band mode couplers, which convert a rectangular waveguide TE1,0 to cylindrical waveguide TE2,1 mode, has been designed, constructed, and tested. The design features a set of longitudinal slots, positioned in regions of negligible current flow for the TE2,1 mode, allowing its propagation to be preferentially favored, by suppression of the fundamental TE1,1 mode. Numerical simulations and experimental measurements display good agreement, showing transmission of the intended TE2,1 mode at levels of better than -5 dB, from a frequency of similar to 37.5 to 41 GHz. Subsequent farfield measurements confirm the presence of the TE2,1 mode, demonstrating good agreement when compared with analytical expectations. Such a device would be an ideal candidate for an application where mode purity, bandwidth, and ease of construction are of primary importance and where the transmission efficiency is of limited concern. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3480994]
AB - A novel, compact arrangement for Ka-band mode couplers, which convert a rectangular waveguide TE1,0 to cylindrical waveguide TE2,1 mode, has been designed, constructed, and tested. The design features a set of longitudinal slots, positioned in regions of negligible current flow for the TE2,1 mode, allowing its propagation to be preferentially favored, by suppression of the fundamental TE1,1 mode. Numerical simulations and experimental measurements display good agreement, showing transmission of the intended TE2,1 mode at levels of better than -5 dB, from a frequency of similar to 37.5 to 41 GHz. Subsequent farfield measurements confirm the presence of the TE2,1 mode, demonstrating good agreement when compared with analytical expectations. Such a device would be an ideal candidate for an application where mode purity, bandwidth, and ease of construction are of primary importance and where the transmission efficiency is of limited concern. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3480994]
KW - circular waveguides
KW - rectangular waveguides
KW - optical waveguides
KW - convertors
UR - http://www.scopus.com/inward/record.url?scp=77957704944&partnerID=8YFLogxK
U2 - 10.1063/1.3480994
DO - 10.1063/1.3480994
M3 - Article
VL - 81
SP - 094702
JO - Review of Scientific Instruments
T2 - Review of Scientific Instruments
JF - Review of Scientific Instruments
SN - 0034-6748
IS - 9
ER -