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http://dx.doi.org/10.5515/KJKIEES.2009.20.6.516

Design of VHF-Band Wideband 4-Way 90° Power Divider  

Lee, Kyu-Song (Agency for Defense Development)
Oh, Seung-Hyeub (Dept. of Electronics Engineering, Chungnam National University)
Publication Information
Abstract
This paper described the design and fabrication of broadband 4-way $90^{\circ}$ power divider which has a $90^{\circ}$ phase difference between output ports in 20${\sim}$100 MHz VHF-band. A 4-way $90^{\circ}$ power divider was designed using 4-way in-phase power divider which consisted of three 2-way in-phase power dividers and two second-order all pass filters which gives $90^{\circ}$ phase difference between output ports. The measured insertion loss was less then 6.6 dB, return loss and isolation were better than 19 dB, and phase error between $90^{\circ}$ phase difference outputs was less than ${\pm}$1$^{\circ}$.
Keywords
4-Way $90^{\circ}$ Power Divider; $90^{\circ}$ Phase Difference Networks;
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