Compact and Wideband Parallel-Strip 180° Hybrid Coupler with Arbitrary Power Division Ratios

Table 1

Required values of 𝑍_𝐴 and 𝑍_𝐵 for different power division ratios.

𝑘	𝑍𝐴	𝑍𝐵
1	70.71Ω	70.71Ω
2	86.60Ω	61.24Ω
4	111.8Ω	55.90Ω
8	141.4Ω	53.03Ω