The use of modules connecting directly to printed circuit boards allow a high variety of configurations of RF head assemblies. Modules integrate the Tx amplifier chain with its observation path for DPD and the Rx amplifaction chain. They come in different sizes depending on the power requested. Examples are shown below.
A 40Wp Tx Rx module can be used with a ceramic duplexer at its output. On the Tx input side a linearizer can be intergrated together with preamps. In the Rx chain filtering and gain control can be integrated.
USING A MEDIUM POWER MODULE
5W Band 7 FDD subassembly
USING A HIGH POWER MODULE
A 150Wp Tx Rx module can be used with a Tx linearizer and Rx post amps in a TDD configuration. The output of the subassembly is then connected to a cavity bandpass filter.
20W Band 40 TDD subassembly