V23839-R3x-L55

Application Notes

Preliminary Product Information

21

2004-06-25

The return path of RF current must also be considered. Thus a split ground plane

between Tx and Rx paths may result in severe EMI problems irrespective of which

module ground concept has been applied.

The bezel opening for a transceiver should be sized so that all contact springs of the

transceiver make good electrical contact with the face plate. Please consider that the

PCB may behave like a dielectric waveguide. With a dielectric constant of 4, the

wavelength of the harmonics inside the PCB will be half of that in free space. Thus even

the smallest PCBs may have unexpected resonances.