Five-port junction: In the way of general public applications

this article the replacement of the six-port system by a simplified five-port version in applications where a constant power local oscillator is employed. We show that this change considerably diminishes the digital processing time. A mathematical approach is developed, measurement results and comparisons between the five and six-port performances are presente

Narrow band quasi-circulator module design used in a transmit / receive module

This paper presents the design and the measured performances of a narrow band MMIC quasi-circulator module. Its design implements active divider and combiner. The device demonstrates a noise figure of 5.5 dB and an output power of 18 dBm with associated gains of 4 dB and 7.6 dB for the receive and transmit path, respectively