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Filter Systems
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The density of cellular network infrastructure is growing
dramatically. This is causing interference issues that require high
quality filtering and combining products to overcome these problems. The
use of highly tuned filters can offer a significant improvement in the
quality of a network. AlanDick is able to offer a range of transmit, receive and duplex filters to cover all the major cellular communication frequency bands and standards. These filters are characterised by low insertion losses, high selectivities and in the case of Duplexers and Triplexors, high isolations also. A range of technologies can be used to implement these filters depending on the specific filter requirements. Innovative manufacturing techniques have been developed and are used in order to achieve the extremely low levels of intermodulation products that are required in communications systems. These techniques allow low intermodulation levels to be guaranteed over production volumes. |
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In addition to the standard receive, transmit and duplex filters, a
comprehensive family of filters for use in multi-operator and
multi-system environments have been developed. These include notch
filters, duplexers/diplexors and triplexers.