A Hybrid coupler

• Main Authors: Mark Christopher Nguyen, Gareth Michael Lewis
• Format: Patent
• Language: English
• Published: 27.07.2022
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE; WAVEGUIDES

A hybrid coupler (20) for dividing an input electrical signal to produce first and second output electrical signals which are substantially out of phase, including: an input port (12); an input line (14) for coupling an input signal to a slotline (18); an output line (24) coupling the first and second output electrical signals to a first output port (26) and a second output port (28), the output line (24) having a junction with the slotline (18); the slotline (18) couples the input electrical signal to the junction, and the junction acts as a divider to produce the first and second electrical signals; the slotline (18) is terminated by an output open circuit termination (22); a pair of ground planes, between which said input and output lines (14, 24) are located; and wherein: on one of the ground planes, the slotline (18) transitions into a first end of a Co-Planar Waveguide CPW (40), said CPW being electrically connected to said output line (24) and defining at a second, opposing end thereof, a sum port (46) configured to divert common mode signals received at said first and second output ports (26) to said sum port (46).