Improved design for symmetrical six-port microstrip coupler (based on double-ring-with-star topology)

IEEE Transactions on Microwave Theory and Techniques

Volumn 48, Issue 6, 2000, Pages 1074-1077

  Yeo, S P ^a   Tan, B ^a   Kwek, E H ^a  

^a NATIONAL UNIVERSITY OF SINGAPORE   (Singapore)

Author keywords

[No Author keywords available]

Indexed keywords

MICROSTRIP COUPLER; RING TOPOLOGY; STAR TOPOLOGY;

BANDWIDTH; COMPUTER SIMULATION; MATHEMATICAL MODELS; MATRIX ALGEBRA; MICROSTRIP LINES; SCATTERING PARAMETERS;

WAVEGUIDE COUPLERS;

EID: 0034204791     PISSN: 00189480     EISSN: None     Source Type: Journal    
DOI: 10.1109/22.904749     Document Type: Article

References (10)

1. S. K. Judah, M. J. Page, and M. Judd, "Planar symmetrical six-port junction," Proc. Inst. Elect. Eng., pt. H, vol. 134, pp. 109-115, Apr. 1987.
2. A. L. Cullen, S. K. Judah, and F. Nikravesh, "Impedance measurement using a six-port directional coupler," Proc. Inst. Elect. Eng., pt. H, vol. 127, pp. 92-98, Apr. 1980.
3. A. L. Cullen, "The six-port in microwave measurements," in European Microwave Conf. Dig., 1979, pp. 74-82.
4. C. R. Boyd, "On a class of multiple-line directional couplers," IRE Trans. Microwave Theory Tech., vol. MTT-10, pp. 287-293, July 1962.
5. S. P. Yeo and C. L. Lau, "First-order model of symmetrical six-port microstrip ring coupler," IEEE Trans. Microwave Theory Tech., vol. 39, pp. 1666-1669, Sept. 1991.
6. D. I. Kim, K. Araki, and Y. Naito, "Properties of symmetrical five-port circuit and its broad-band design," IEEE Trans. Microwave Theory Tech., vol. MTT-32, pp. 51-57, Jan. 1984.
7. A. J. Belfort and A. L. Cullen, "First-order theory of five-port symmetrical star junction," Electron. Lett., vol. 18, pp. 841-842, Sept. 1982.
8. R. K. Hoffmann, Handbook of Microwave Integrated Circuits. Norwood, MA: Artech House, 1987.
9. M. Gen and R. Cheng, Genetic Algorithm and Engineering Design. New York: Wiley, 1996.
10. G. P. Riblet and E. R. B. Hansson, "Some properties of the matched symmetrical six-port junction," IEEE Trans. Microwave Theory Tech., vol. MTT-32, pp. 164-171, Feb. 1984.