Design a duplexer for transmitting and receiving at the same time and connected with exist antenna(AIA)

Job ID: 31935101

Budget: $10 – $30 USD

.
i need from you :
1- design duplexer with respect a frequency rang(2-4GHz) and center frequency (2.45GHz)

2- results of max.gain , S11,S22,S12,and S21. include :

- ( layout & Schematic of duplexer with all components )
- ( layout & Schematic for complete design after connected duplexer )
- ( introduction for duplexer & How does a duplexer work in 2 pages maximum )