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

Table 2

Physical dimensions of the couplers with different power division ratios.

𝑘	𝑤𝑎	𝑙𝑎	𝑤𝑏	𝑙𝑏	𝑤	𝑠	𝑑
1	3.4 mm	24.9 mm	3.4 mm	24.9 mm	5.3 mm	0.2 mm	1.1 mm
2	2.5 mm	25.1 mm	4.1 mm	24.7 mm	5.3 mm	0.2 mm	1.1 mm
4	1.7 mm	25.5 mm	4.6 mm	24.9 mm	5.3 mm	0.2 mm	1.1 mm
8	1.1 mm	25.9 mm	4.9 mm	24.5 mm	5.3 mm	0.2 mm	1.1 mm