Models are available with N or SMA connectors. They are used to provide impedance matching, DC isolation, voltage or current ratios, connection of balanced to unbalanced circuits, power splitting and phase inversion. TRM offers a wide variety of package options including Flatpack, Surface Mount, Connectorized versions, and Hex style. Custom designs are available to satisfy your application requirements, contact factory for more information. MIR Series Image rejection mixers provide an IF output to either the lower sideband output or the higher sideband output, depending on whether the RF signal is below or above the local oscillator.
Image rejection is accomplished through vector cancellation within the network.
This network is formed of an in-phase power divider, two double balanced mixers and two 90 degree hybrids. An image condition occurs during mixing when both the sum and difference output signals appears in the frequency band. The image is separated from the real signal by vector subtraction, with the level of cancellation obtained usually expressed as a rejection ration in dB. PC Series Phase Comparators produce two outputs of equal amplitude and phase when fed by a reference and unknown signal. One output is proportional to the sine and the other to the cosine of the phase angle difference between the reference and the unknown signal. Each phase comparator is an assembly consisting of a power divider, two balanced mixers, a 90 degree hybrid and phase-matching network.