Phase2 Microwave Ltd

Microwave Filters, Diplexers and Subsystems

Satcoms Components and Networks

Interdigital Filters

A favourite for high performance linear phase designs these have a slightly lower Q per unit volume than the combline but offer a very symetrical performance.

Linear Phase designs can provide very flat group delay over the passband, while elliptic designs can provide sharper rejection than the standard chebycheff prototype.

They can be suppplied from 200MHz to about 30 GHz in bandwidths from about 1% to over 50%.

The design process is well tested and prototypes are not required.

A 10 Ghz example is shown below.