H-Plane Symmetrical Tee Having a Reflector

Tsunehiro OBATA; Jiro CHIBA

H-Plane Symmetrical Tee Having a Reflector

Tsunehiro OBATA, Jiro CHIBA

Full Text Views

0

Share
Cite this

Summary :

The transmission and reflection characteristics of a H-plane symmetrical T-junction having a reflector near the junction plane are theoretically studied. The reflector is an equilateral triangle post, and it is installed in contact with the wall of the through-guide facing the junction plane to improve the wave propagation from the truncated-guide to the through-guide. In case of equal cross section, we find an optimum reflector, the top angle of which triangle reflector is 0 degree and its height is about half of the guide width. Roughly speaking, the fin, that is, the reflector of 0 degree has the characteristic value of (transmission coefficient |S₁₂| between the truncated-guide and the through-guide) 0.705 over a wide frequency range. This value is nearly equal to the upper limit value of |S₁₂| 1/20.7071. Thus 99.4 percent (0.705²2) of the energy fed from the truncated-guide transmits evenly into the other two arms, and 0.6 percent reflects. The problem is treated by a method of combining the boundary-element method and a hybrid-representation circuit equation.

Publication: IEICE TRANSACTIONS on transactions Vol.E72-E No.10 pp.1127-1134

Publication Date: 1989/10/25

Publicized

Online ISSN

DOI

Type of Manuscript: PAPER

Category: Microwave and Millimeter Wave Technology

Authors

Tsunehiro OBATA
Jiro CHIBA

Keyword

Cite this

Copy

Tsunehiro OBATA, Jiro CHIBA, "H-Plane Symmetrical Tee Having a Reflector" in IEICE TRANSACTIONS on transactions, vol. E72-E, no. 10, pp. 1127-1134, October 1989, doi: .
Abstract: The transmission and reflection characteristics of a H-plane symmetrical T-junction having a reflector near the junction plane are theoretically studied. The reflector is an equilateral triangle post, and it is installed in contact with the wall of the through-guide facing the junction plane to improve the wave propagation from the truncated-guide to the through-guide. In case of equal cross section, we find an optimum reflector, the top angle of which triangle reflector is 0 degree and its height is about half of the guide width. Roughly speaking, the fin, that is, the reflector of 0 degree has the characteristic value of (transmission coefficient |S₁₂| between the truncated-guide and the through-guide) 0.705 over a wide frequency range. This value is nearly equal to the upper limit value of |S₁₂| 1/20.7071. Thus 99.4 percent (0.705²2) of the energy fed from the truncated-guide transmits evenly into the other two arms, and 0.6 percent reflects. The problem is treated by a method of combining the boundary-element method and a hybrid-representation circuit equation.
URL: https://globals.ieice.org/en_transactions/transactions/10.1587/e72-e_10_1127/_p

Copy

@ARTICLE{e72-e_10_1127,
author={Tsunehiro OBATA, Jiro CHIBA, },
journal={IEICE TRANSACTIONS on transactions},
title={H-Plane Symmetrical Tee Having a Reflector},
year={1989},
volume={E72-E},
number={10},
pages={1127-1134},
abstract={The transmission and reflection characteristics of a H-plane symmetrical T-junction having a reflector near the junction plane are theoretically studied. The reflector is an equilateral triangle post, and it is installed in contact with the wall of the through-guide facing the junction plane to improve the wave propagation from the truncated-guide to the through-guide. In case of equal cross section, we find an optimum reflector, the top angle of which triangle reflector is 0 degree and its height is about half of the guide width. Roughly speaking, the fin, that is, the reflector of 0 degree has the characteristic value of (transmission coefficient |S₁₂| between the truncated-guide and the through-guide) 0.705 over a wide frequency range. This value is nearly equal to the upper limit value of |S₁₂| 1/20.7071. Thus 99.4 percent (0.705²2) of the energy fed from the truncated-guide transmits evenly into the other two arms, and 0.6 percent reflects. The problem is treated by a method of combining the boundary-element method and a hybrid-representation circuit equation.},
keywords={},
doi={},
ISSN={},
month={October},}

Copy

TY - JOUR
TI - H-Plane Symmetrical Tee Having a Reflector
T2 - IEICE TRANSACTIONS on transactions
SP - 1127
EP - 1134
AU - Tsunehiro OBATA
AU - Jiro CHIBA
PY - 1989
DO -
JO - IEICE TRANSACTIONS on transactions
SN -
VL - E72-E
IS - 10
JA - IEICE TRANSACTIONS on transactions
Y1 - October 1989
AB - The transmission and reflection characteristics of a H-plane symmetrical T-junction having a reflector near the junction plane are theoretically studied. The reflector is an equilateral triangle post, and it is installed in contact with the wall of the through-guide facing the junction plane to improve the wave propagation from the truncated-guide to the through-guide. In case of equal cross section, we find an optimum reflector, the top angle of which triangle reflector is 0 degree and its height is about half of the guide width. Roughly speaking, the fin, that is, the reflector of 0 degree has the characteristic value of (transmission coefficient |S₁₂| between the truncated-guide and the through-guide) 0.705 over a wide frequency range. This value is nearly equal to the upper limit value of |S₁₂| 1/20.7071. Thus 99.4 percent (0.705²2) of the energy fed from the truncated-guide transmits evenly into the other two arms, and 0.6 percent reflects. The problem is treated by a method of combining the boundary-element method and a hybrid-representation circuit equation.
ER -