Planar 180° hybrid coupler with non-interspersed ports for millimeter-wave applications | International Journal of Microwave and Wireless Technologies | Cambridge Core
Hot Selling High Frequency 6-18GHz 180 Degree Hybrid Coupler with SMA-K Connector High Bandwidth RF Hybrid Coupler Widely Used for Base Station - China Microwave Components, Passive Components | Made-in-China.com
Figure 1 from Compact and power-efficient 5 GHz full-duplex design utilizing the 180° ring hybrid coupler | Semantic Scholar