Measurement of an Invariant in Directional Couplers

IEEE Microwave and Guided Wave Letters

Volumn 3, Issue 4, 1993, Pages 101-103

  Awai, I ^a   Takaugi, A ^b   Kitoh, R ^b  

^a YAMAGUCHI UNIVERSITY   (Japan)

^b UBE INDUSTRIES LTD   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

MATRIX ALGEBRA;

COUPLING PORT; DIRECTIONAL COUPLER INVARIANT; INVARIANT K; ISOLATION PORT; LOSSLESS FOUR-PORT CIRCUITS; TRANSFER MATRICES;

WAVEGUIDE COUPLERS;

EID: 0027578390     PISSN: 10518207     EISSN: None     Source Type: Journal    
DOI: 10.1109/75.208563     Document Type: Article

References (4)

1. K. Araki and Y. Naito, “On the properties of lossless reciprocal 4-port circuits with reflection symmetry,” IEEE Trans. Circuits and Systems I vol. 39, pp. 155–161, Feb. 1992.
2. J.E. Dailey, “A strip-line directional coupler utilizing a nonhomogeneous dielectric medium,” IEEE Trans. Microwave Theory Tech., vol. MTT-17, pp. 706–712, Sept. 1969.
3. Y. Konishi, I. Awai, Y. Fukuoka, and M. Nakajima, “A directional coupler of a vertically installed planar circuit structure,” IEEE Trans. Microwave Theory Tech., vol. 36, pp. 1057–1063, June 1988.
4. I. Awai, A. Takasugi, M. Hano, S. Furuya, and R. Kitoh, “Surfacemountable ceramic directional coupler for lower microwave frequency band,” Asia-Pacific Microwave Conf. Proc., Aug. 1992, pp. 677–680.