Development of a Super Broadband RF Splitter Using Bead Type Ferrite Core Transformers
We report on the broadening of the operating frequency of a RF splitter widely used in CATV systems. In order to realize this, the relationship between the splitter’s transmission characteristics and design parameters has been investigated using computer-aided engineering. Based on the calculations, a sample device has been fabricated to confirm the theoretical results. It has been found that by selecting the parameters appropriately, excessive loss can be suppressed to less than 1.6dB and 3dB in a frequency range of 20MHz to 2,600MHz in the cases of 2-way and 4-way splitters, respectively.
T. Kanie et al., "Development of a Super Broadband RF Splitter Using Bead Type Ferrite Core Transformers", Advances in Science and Technology, Vol. 45, pp. 2576-2581, 2006