Power Dividers Extend From 380 To 2700 MHz

May 12, 2007

By leveraging a unique airline coaxial structure, a line of unequal power dividers manages to maintain a fixed split ratio over a 380-to-2700-MHz bandwidth. Ripple and insertion loss are kept to a minimum. Insertion loss, for example, is 1.36 dB for ports J1-J3 and 6 dB for ports J1-J2 for the UN-06N. For the UN-30N, it is 0.01 dB for J1-J3 and 30 dB for J1-J2. The UN-10N falls in the middle of this nine-member series with nominal insertion loss of 0.46 dB for J1-J3 and 10 dB for J1-J2. Direct current (DC) is continuous through the main line. The coupled port is DC-isolated from the main line. It only passes RF power. Split ratios range from 1:3 to 1:1000 (6 to 30 dB). The dividers' mechanical design has no solder joints. To achieve an IP65 rating, it uses flange-mount connectors with O rings.

R&D Microwaves LLC, 11 Melanie Ln., Suite 12, East Hanover, NJ 07936; (908) 212-1696, FAX: (908) 212-7880, Internet: www.rdmicrowaves.com

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About the Author

Nancy Friedrich

RF Product Marketing Manager for Aerospace Defense, Keysight Technologies

Nancy Friedrich is RF Product Marketing Manager for Aerospace Defense at Keysight Technologies. Nancy Friedrich started a career in engineering media about two decades ago with a stint editing copy and writing news for Electronic Design. A few years later, she began writing full time as technology editor at Wireless Systems Design. In 2005, Nancy was named editor-in-chief of Microwaves & RF, a position she held (along with other positions as group content head) until 2018. Nancy then moved to a position at UBM, where she was editor-in-chief of Design News and content director for tradeshows including DesignCon, ESC, and the Smart Manufacturing shows.