A Novel High-Power Dual-Band Coupled-Line Gysel Power Divider with Impedance-Transforming Functions

Abstract EN

A novel coupled-line structure is proposed to design dual-band and high-power Gysel power dividers with inherent impedance-transforming functions.

Based on traditional even- and odd-mode technique, the analytical design methods in closed-form formula are obtained and the accurate electrical parameters analysis is presented.

Due to the usage of coupled-line sections, more design-parameter freedom and a wider frequency-ratio operation range for this kind of dual-band Gysel powder divider are obtained.

Several numerical examples are designed and calculated to demonstrate flexible dual-band applications with different impedance-transforming functions.

A practical microstrip power divider operating at 2 GHz and 3.2 GHz is designed, fabricated, and measured.

The good agreement between the calculated and measured results verifies our proposed circuit structure and analytical design approach.