220374 ⎘
Networks using elements or techniques not provided for in groups - comprising optical fibre network elements
Photonics based tunable multiband microwave filter
#2Continuously tunable and highly reconfigurable multiband RF filter
#3Tunable RF filter device using optical waveguide paths with splitter and combiner pairs and related methods
#4Tunable RF filter device using optical waveguides with dispersion slopes of opposite signs and related methods