Sorry for the missing parameters, but it's a new field for me. Some data:
Uplink 890-915 MHz, Downlink 935-960MHz
I'm thinking about a class B or hybrid broadband repeater. The service antenna should be capable of a near field coverage of about 20m*20m. This should be a BDA for home or office use in GSM band only.
I have problems finding suitable SAW filters, so i'm not able to obtain high TX-RX isolation...
For the PA stage i'm trying to use RF2104, for the LNA the AVAGO'S ATF33143. Interstage amps use broadband MMIC or BJT transistors.
Admitting I receive -90dBm at the donor antenna, and I want a near field coverage of about 20m+20m, are -10dBm at the service antenna enough ?