How to design a phase shifter with bandwidth of 80MHz

Hello all,
Is it possible to design phase shifter of bandwidth around 80MHz.
If someone has material on it then pls provide

You need to specify the center frequency. One method is to use variable capacitor diodes and a branch line coupler.

means we can design.
can you give me some material on it

Sure, easy as falling off a log! You would, of course, use lumped elements. I have a bunch I bought on ebay (mechanically tunable) that have coils and capacitors in side and work great at 75 MHz.

Electronically tunable, the only trick would be to get a big enough capacitance varactor diode. Probably need one around 22 pF at 0 V.

Start with a brahcnline coupler at your frequency. Top left is input, bottom left is output the two right ports have equal reactances to ground.