Studies on Loss Evaluation of Bending in Post Wall Waveguide for Microwave Transmission
Post wall waveguide is important structure for microwave transmission of integrated circuits with multi-layered substrates. It has simple periodic array of metallic or dielectric cylinders between parallel conducting plates. In this study, loss of bending part with the angle of 120° in post wall waveguide was evaluated both numerically and experimentally for microwave. We proposed the best configuration for bending part of the post wall waveguide.
KeywordsPost wall waveguide Bend Loss Microwave Measurement CIP method
This work was financially supported by KAKENHI No. 24560430, Grant-in-Aid for Scientific Research (C) by Japan Society for the Promotion of Science (JSPS) in 2012. Also, authors express our thanks to D. Kunitake, K. Kosugi, K. Satoh, M. Maruyama, T. Izumi, and Y. Yano for their cooperation with measurement of post wall waveguide by scale model.
- 1.Yasumoto K (ed) (2006) Electromagnetic theory and applications for photonic crystals. CRC PRESS, Boca RatonGoogle Scholar
- 4.Zhang Y, Terashima H, Ogata D, Maeda H (2011) Some trials to suppress unnecessary resonance in photonic crystal cavity structure. In: Proceedings of BWCCA 2011: 6th international conference on broadband, wireless computing, communication and applications, Oct 2011, pp 482–486Google Scholar
- 5.Maeda H, Chen H, Tomiura K, Shinohara T (2012) Numerical and experimental study on confinement of microwave in dielectric and metallic post array waveguide. In: Proceedings of INWC 2012: The 2nd international workshop on information networking and wireless communications in conjunction with NBiS 2012: The 15th international conference on network-based information systems, Sep 2012, pp 562–566 Google Scholar
- 6.Maeda H, Zhang Y, Terashima H, Shinohara T (2011) Hexagonal resonator in two dimensional photonic crystal structure. In: Proceedings of IEEE INCoS 2011: 3rd IEEE international conference on intelligent networking and collaborative systems, Nov 2011, pp 537–540Google Scholar
- 7.Maeda H, Zhang Y, Terashima H, Maruyama T, Hironaka S (2011) Experimental study on four-branching waveguide in two dimensional photonic crystal structure with triangular lattice by scale model around 4 GHz. In: Proceedings of ISMOT-2011: 13th international symposium on microwave and optical technology, June 2011, pp 65–68 Google Scholar
- 9.Okubo K, Takeuchi N (2007) Analysis of an electromagnetic field created by line current using constrained interpolation profile method. IEEE Trans Antennas Propag 55(1):111–119Google Scholar
- 10.Maeda H, Terashima H, Maruyama T, Hironaka S (2010) Numerical analysis of scattered electromagnetic wave by a dielectric cylinder with high contrast by CIP method. In: Proceedings of MAPWC-2010: 1st international workshop on methods, analysis and protocols for wireless communication in conjunction with BWCCA-2010: 5th international conference on broadband and wireless computing, communication and applications, Nov 2010, pp 561–564 Google Scholar
- 11.Maeda H, Zhang Y, Terashima H (2011) Numerical analysis of electromagnetic wave scattered by high-contrast dielectric cylinder using CIP method. In; Proceedings of INWC 2011: The 1st international workshop on information networking and wireless communications in conjunction with NBiS 2011: The 14th international conference on network-based information systems, Sep 2011, pp 491–496 Google Scholar
- 12.Maeda H (2012) Numerical technique for electromagnetic field computation including high contrast composite material, chapter 3. In: Das N (ed) Optical communications. InTech (Open Access Publisher), Fijeka, pp 41–54. ISBN 978-953-51-0784-2Google Scholar