Development Of Off-Set Crossover Couplers

Abstract

Offset crossover couplers are an important class of microwave stripline circuits. The 3-dB quadrature coupler simplifies layout for balanced components like amplifiers, mixers, absorbtive modulators etc. Published design curves for these couplers do not cover all values of couplings and dielectric constants. This paper describes development of offset couplers with the help of simple computer programmes. Several limitations of published design curves are overcome and realisation is simplified.

Indexing Terms:

• Offset Crossover Couplers
• 3-dB Stripline Couplers
• Multi-section Couplers