Quadrature hybrid

摘要

A quadrature hybrid comprising first and second coupled open waveguides. Each open waveguide comprises first and second ports. One port in the first open waveguide is used as input port for an input signal which is used to generate I and Q output signals. The other port in the first open waveguide is used to output the Q signal, and one of the ports in the second waveguide is used to output the I signal. The other of the ports in the second open waveguide is an isolated port. The quadrature hybrid comprises a first differential amplifier with positive and negative ports, the positive port being connected to the first open waveguide and the negative port being connected to the second open waveguide.

主权项

1. A quadrature hybrid comprising a first open waveguide and a second open waveguide which are electrically coupled to each other, with each of said first and second open waveguides comprising a first and a second port, where one of the ports in the first open waveguide is arranged to be used as an input port for an input signal which the quadrature hybrid is arranged to be used to generate I and Q output signals, with the other port in the first open waveguide being arranged to be used to output said Q signal, and one of the ports in the second open waveguide is arranged to be used to output said I signal with the other of the ports in the second open waveguide being arranged to be an isolated port, the quadrature hybrid additionally comprising a first differential amplifier with a positive and a negative port, with the positive port being connected to the first open waveguide and the negative port being connected to the second open waveguide.