Schiffman Phase Shifter

Hi to all,
I want to design a broadband Schiffman phase shifter in the 2-6GHz frequency range with fixed 45 (or 90) degree phase shift. I read some papers (most from MTT). but I can't implement them in simulatiom. Any implemented circuits or design thechniques can be very usefull for me.

Thanks in Advance
KMPA

one of papers that I studied, is " Synthesis and Design of Wide-Band Equal-Ripple TEM Directional Couplers and Fixed Phase Shifters" By J. P. SHELTON and J. A. MOSKO. If anybody has "phase shifter design tables" that generated by authors, my problem will be solved with it. (paper not include design tables)

Regards
KMPA