Analysis of interference-type measurer of directional coupler directivity

Authors

  • G. A. Lukyanchuk Sevastopol National Technical University, Ukraine

DOI:

https://doi.org/10.3103/S073527270508008X

Abstract

A new method is suggested for construction of a measurer of directivity factor in directional couplers. The method is based on analysis of interference of the forward and backward wave in the secondary channel made as a closed ring. An equation relating the coupler directivity to the standing-wave ratio in the secondary channel is derived. An example of determination of couper’s directivity is included. The advantages of the proposed method are outlined.

References

  1. AL’TMAN, D.G. Microwave Devices [Russian translation]. Moscow: Mir, 1968.
  2. KOZHEVNIKOV, B.V. A waveguide directional coupler, SU Patent No. 1672538, A1 H01 P5/18, Application 4737544/09. Bull. Izobr., n.31, 23 Aug 1991.
  3. LASHCHENKO, I.V. Radioelectron. Commun. Syst., v.42, n.1, p.33, 1999.
  4. FEL’DSHTEIN, A.L.; YAVITCH, V.P.; SMIRNOV, V.P. Handbook of Waveguide Elements [in Russian, ed. by A. L. Fel’dshtein]. Moscow: Sov. Radio, 1967.
  5. SILAYEV, M.A.; BRYANTSEV, S.S. Application of Matrices and Graphs to Analysis of Microwave Devices [in Russian, ed. by M. A. Silayev]. Moscow: Sov. Radio, 1970.

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Published

2005-08-08

Issue

Vol. 48 No. 8 (2005)

Section

Research Articles