Method of Moments Analysis of Slotted Substrate Integrated Waveguide Arrays

A method of moments analysis is described for substrate integrated waveguide slot arrays. The array structure is modeled as a parallel plate waveguide on which via holes and slots are created. The field into the waveguide is expressed by the sum of the parallel plate's contribution and the field scattered by the metallic through holes, with both contributions expressed by means of an expansion in terms of vectorial cylindrical eigenfunctions. The slots are modeled as unknown equivalent magnetic current distributions which are found by solving an integral equation derived from the continuity of the field on the slot surface. Antenna arrays already presented in the literature will be analyzed, and the results compared with HFSS simulations. It will be shown that the proposed method is efficient and gives results in excellent agreement with the most common simulation tools.

[1]  Zhiyuan Yu,et al.  Ka-Band Substrate IntegratedWaveguide Gunn Oscillator , 2008, IEEE Microwave and Wireless Components Letters.

[2]  J. Hirokawa,et al.  A slotted post-wall waveguide array with interdigital structure for 45/spl deg/ linear and dual polarization , 2005, IEEE Transactions on Antennas and Propagation.

[3]  Jian-Ming Jin,et al.  Scattering From a Large Planar Slotted Waveguide Array Antenna , 1999 .

[4]  L. Boccia,et al.  Full wave analysis of substrate integrated circuits , 2006, 2006 First European Conference on Antennas and Propagation.

[5]  THE APPLICATION OF MOM AND EECS ON EM SCATTERING FROM SLOT ANTENNAS , 1999 .

[6]  G. Amendola,et al.  Analysis of Substrate Integrated Waveguide Structures Based on the Parallel-Plate Waveguide Green's Function , 2008, IEEE Transactions on Microwave Theory and Techniques.

[7]  K. Wu,et al.  Integrated microstrip and rectangular waveguide in planar form , 2001, IEEE Microwave and Wireless Components Letters.

[8]  Qin Li,et al.  Analysis of a large number of vias and differential signaling in multilayered structures , 2003 .

[9]  Yilong Lu,et al.  45° linearly polarized substrate integrated waveguide-fed slot array antennas , 2008, 2008 International Conference on Microwave and Millimeter Wave Technology.

[10]  Luigi Boccia,et al.  Analysis of integrated waveguide slot array antennas , 2009, 2009 European Microwave Conference (EuMC).

[11]  Ke Wu,et al.  Planar $Ku$ -Band 4 $\,\times\,$ 4 Nolen Matrix in SIW Technology , 2010 .

[12]  M. Ando,et al.  Single-layer feed waveguide consisting of posts for plane TEM wave excitation in parallel plates , 1998 .

[13]  J. Kong,et al.  Scattering of Electromagnetic Waves, Numerical Simulations , 2001 .

[14]  Li Yan,et al.  Simulation and experiment on SIW slot array antennas , 2004 .

[15]  Wei Hong,et al.  A Multibeam Antenna Based on Substrate Integrated Waveguide Technology for MIMO Wireless Communications , 2009, IEEE Transactions on Antennas and Propagation.

[16]  Ke Wu,et al.  Current and Future Research Trends in Substrate Integrated Waveguide Technology , 2009 .