The MRA-42 from Mini-Circuits is a High Gain Active mixer with an RF/LO frequency from 1000 to 4200 MHz and IF frequency from 10 to 800 MHz. It combines a double balance mixer with a highly linear, low noise IF amplifier to provide efficient operation. The mixer has a conversion loss of 11.5 dB, a typical noise figure of 8 dB and an input IP3 of 18 dBm. It provides excellent LO to RF isolation of 35 dB, and LO to IF isolation of 20 dB. The Schottky diode and MMIC amplifier are bonded to a multilayer integrated LTCC substrate, and then sealed under a controlled nitrogen atmosphere with gold plated covers and eutectic Au-Sn solder.
This mixer, due to its ultra-compact size, offers the additional flexibility to enable the user to install design specific components (i.e., filters, attenuators, switches, etc.) based upon the design needs. It has been tested to MIL requirements for gross leak, fine leak, thermal shock, vibration, acceleration, mechanical shock and HTOL. This RoHS-compliant mixer is available in a ceramic, hermetically-sealed surface mount package that measures 0.30 x 0.25 x 0.06 Inches. It is ideal for cellular, PCN, fixed satellite, WCDMA, defense radar, and defense communication applications.
