Title :
Multiple arbitrary shape via-hole and air-bridge transitions in multilayered structures
Author :
Tsai, Ming-Ju ; Chen, Ckinglung ; Alexopoulos, Nicolaos G. ; Horng, Tzyy-Sheng
Author_Institution :
Lucent Technol., AT&T Bell Labs., Murray Hill, NJ, USA
fDate :
12/1/1996 12:00:00 AM
Abstract :
A methodology for the design of multiple via-hole and air-bridge transitions of arbitrary shape in multilayered multiport microstrip circuits is presented in this paper. Application of multiple via holes to the design of microstrip filters and other devices is discussed. To properly describe the current along the vertical past, the simple pulse function with a triangular cross section is used in the moment method analysis. Circularly and rectangularly shaped vertical transitions are analyzed for several practical applications. Comparisons of numerical results with experimental and available analytical data show good agreement
Keywords :
circuit CAD; integrated circuit design; integrated circuit interconnections; method of moments; microstrip circuits; microstrip filters; microwave integrated circuits; multiport networks; air-bridge transitions; circularly shaped vertical transitions; microstrip filters; moment method analysis; multilayered structures; multiple arbitrary shape via-hole; multiport microstrip circuits; pulse function; rectangularly shaped vertical transitions; triangular cross section; Circuits; Current distribution; Frequency; Geometry; Integral equations; Microstrip; Moment methods; Shape; Solid modeling; Transmission line matrix methods;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
