I/Q mixer offers alternative to hybrid devices

17th May 2021
Mick Elliott

Distributor RFMW has announced design and sales support for a Commercial Off The Shelf (COTS) mixer from Qorvo.

The QPX0004D, 24 to 34 GHz I/Q Mixer can be configured as an image reject mixer, a single sideband upconverter, or a QPSK modulator/demodulator.

Provided as DIE, the device utilises two double balanced mixer cells and a 90⁰ hybrid on the LO port.

An external 90⁰ hybrid on the IF port is required to complete the image rejection or sideband suppression.

The QPX0004D is a much smaller alternative to higher cost hybrid I/Q mixers and single sideband upconverter assemblies. LO/RF isolation is > 30 dB with IF frequency range of DC to 7 GHz.


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