Designer and manufacturer of robust high performance GPS, DGPS and Iridium antennae with Combline and Interdigital Filters
The following graphs provide a quick reference for the frequency responses of the low-loss filters used in AML antennae. The antenna models associated with a given filter are identified in the figure captions.
Interdigital and combline filters enable low passband insertion loses to be obtained over a wide range of bandwidths from a few MHz to over 100 MHz with a rapid out of band roll-off. Unlike ceramic or SAW filters, the centre frequency is not irrevocably fixed to a predetermined value, but can be factory (re)tuned. In-house design and manufacture also enable bespoke frequency responses to be offered for limited numbers.