Publishing house Radiotekhnika

"Publishing house Radiotekhnika":
scientific and technical literature.
Books and journals of publishing houses: IPRZHR, RS-PRESS, SCIENCE-PRESS

Тел.: +7 (495) 625-9241


Electromagnetic models of quasi-planar E-plane metal insert waveguide filters and diplexers


M.B. Manuilov – Dr. Sc. (Phys.-Math.), Professor, Southern Federal University (Rostov-on-Don) K.V. Kobrin – Ph. D. (Phys.-Math.), Associate Professor, Southern Federal University (Rostov-on-Don)

The efficient full-wave methods for analysis of quasi-planar E-plane metal insert waveguide filters and diplexers are proposed. The ri-gorous numerical-analytical technique of analysis of E-plane metal insert waveguide filters is based on Galerkin technique with taking into account the edge condition. The weighted Gegebauer polynomials are used as the basis functions which ensure the fast convergence of solution. The important step of the suggested theory is the analytical transformation of the matrix operator of the final linear algebraic equations system (SLAE). The static (singular) part of the matrix operator is separated and analytically evaluated. In fact, the separation of the matrix operator static part plays the role of the analytical regularization of SLAE of the first kind. The proposed accurate numerical-analytical solution may be considered as the test solution for various numerical methods for this range of problems. The full-wave analysis of diplexer is based on Galerkin method and generalized scattering matrix method. The key scattering problems for basic discontinuities are solved by Galerkin method with weighted Gegebauer polynomials as the basis functions, which ensures as well as the efficient combining S-matrices algorithm the high numerical efficiency of the total solution. The five-resonator waveguide filter for operation over K-band is successfully designed, fabricated and tested. The band-width of the filter is 1%, insertion loss is less than 1 dB. The comparison of the proposed theory and experimental data shows a good agreement. The frequency characteristics of the optimized Ka-band waveguide diplexer for operation over the standard communication applications bands are presented.


  1. Arndt F. Status of the rigorous design of millimeter wave low insertion loss fin-line and metallic E-plane filters // Journ. Inst. Electron. andTelecommun. Eng. 1988. V. 34. № 2. P. 107−119.
  2. Vahldieck R. Quasi-planar filters for millimeter-wave applications // IEEE Trans. 1989. V. MTT-37. № 2. P. 324−334.
  3. Dittloff J., Arndt F.Rigorous Field Theory Design of Millimeter-Wave E-lane Integrated Circuit Multiplexers // IEEE Trans. MicrowaveTheoryandTech. 1989. V. MTT-37. № 2. P. 340−350.
  4. Morini A., Rozzi T., Angelis D. A Novel Matched Diplexer Configuration in E-plane Technology // IEEE MTT-S Intern. MicrowaveSymposiumDigest. 1993. P. 1077−1080.
  5. Ofli E., Vahldieck R., Amari S. Novel E-Plane Filters and Diplexers With Elliptic Response for Millimeter-Wave Applications // IEEE Trans. MicrowaveTheoryandTechn. March 2005.V. 53. № 3. P. 843−851.
  6. Manuilov M.B., Sinjavskijj G.P. Rassejanie voln mnogoehlementnymi neodnorodnostjami v sostave volnovodnykh filtrov i multiplekserov // Radiotekhnika i ehlektronika. 2001. T. 46. № 2. S. 141−147.
  7. Lyapin V.P., Manuilov M.B., Sinyavsky G.P.Quasi-analytical method for analysis of multisection waveguide structures with step discontinuities // Radio Science. Nov.−Dec. 1996. V. 31. № 6. P. 1761−1772.
  8. Sinjavskijj G.P., Manuilov M.B., Kobrin K.V.Volnovodnye filtry kvaziplanarnogo tipa s uluchshennymi kharakteristikami // Uspekhi sovremennojj radioehlektroniki. 2006.№ 4. S. 5−26.
  9. Manuilov M.B., Kobrin K.V., Sinyavsky G.P., Labunko O.S. Full Wave Hybrid Technique for CAD of Passive Waveguide Components with Complex Cross Section // Proc. ProgressofElectromagneticsResearchSymposium (PIERS 2009). August 18−21. 2009. Moscow. P. 1393−1397.
  10. Vahldieck R., Bornemann J., Arndt F., Grauerholz D. Optimized waveguide E-plane metal-insert filters for millimeter-wave applications // IEEE Trans. 1983. V. MTT-31. № 1. P. 65−69.
  11. Gupta K., Gardzh R., CHadkha R. Mashinnoe proektirovanie SVCH ustrojjstv. M.: Radio i svjaz. 1987. 432 s.


© Издательство «РАДИОТЕХНИКА», 2004-2017            Тел.: (495) 625-9241                   Designed by [SWAP]Studio