Technique for broadband impedance matching

Any technique about broad band impedance matching. The circuits which I have all work for narrow band.

Look at www.ampsa.com.

Hi,

there are three thechniques to design a broadband matching network

analytical
real frequency
transformation Q

They are far complicated to explain them in the forum like this, please refer to the literature:

George L. Matthaei, Leo Young, E. M. T. Jones ?
Microwave Filters, Impedance Matching and Coupling Structures, Artech House, 1980

Herbert J. Carlin and Pier Paolo Civalleri?
Wideband Circuit Design, CRC, 1998

Pieter L.D. Abrie ?
The Design Of Impedance ? Matching Networks For Radio ? Frequency And Microwave
Amplifiers, Artech House, 1985

flyhigh