The 1 kW DAB band III six-cavity filter from Delta Meccanica is available in folded geometry and features cross-coupling and an elliptical response.
After examining the thermal behavior of the filter at full power, the company says it optimized the temperature compensation to improve the filter’s stability and performance.
This model, to be shown at NAB, is part of the firm’s range of DAB filters available from 250 W to 5 kW. It complies with critical and noncritical mask requirements. The unit is adjustable and permits the construction of various types of combiners, including star- and bridge-shaped. It is also possible to combine adjacent block channels to the later type, the company adds.
The mechanical construction technique, says the Italian company, allows for the construction of large structures at a reasonable price without sacrificing RF performance and quality.
NAB Show Booth: C548