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RF SOI image reject mixer covers 10 to 19 GHz

RF SOI image reject mixer covers 10 to 19 GHz

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By Jean-Pierre Joosting



The PE41901 is a passive, double-balanced Ku-band image reject mixer with high dynamic range performance and high local oscillator (LO) isolation capable of operation up to 19 GHz. It can be used as an upconverter or a downconverter. The image reject mixer operates with single-ended signals on the radio frequency (RF) and LO ports. The intermediate frequency (IF) port accepts broadband quadrature signals from DC to 4 GHz.

The device includes two mixers, an LO path 90° coupler and RF port baluns on a single die. Integrating this functionality on a single die reduces LO leakage and improves LO–RF isolation, while minimizing board space and design effort. In addition, no external blocking capacitors are required if 0 VDC is present on the LO or RF pins.

The PE41901 image reject mixer is ideal for Ku-band earth terminals such as very small aperture terminal (VSAT) block upconverters, point-to-point microwave links and test and measurement applications.

The PE41901 is manufactured on Peregrine’s UltraCMOS® process, a patented variation of silicon-on-insulator (SOI) technology on a sapphire substrate, offering the performance of GaAs with the economy and integration of conventional CMOS.

According to Peregrine, additional key features of the PE41901 includes:

  • Complete MMIC mixer;
  • Double-balanced high LO–RF isolation: 38 dB;
  • Conversion loss: 10 dB;
  • Image rejection: 25 dB;
  • Package: 24-lead 4- x 4- x 0.85-mm QFN. 

 www.richardsonrfpd.com

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