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Wideband MMIC Balun Transformer Targets 2- to 18-GHz Apps

July 19, 2023
Mini-Circuits' MTX2-183+ wideband MMIC balun transformer has an impedance ratio of 1:2, applicable for applications from 5G MIMO to EW systems ranging up to 18 GHz.

Addressing 5G MIMO and backhaul radio systems, test and measurement equipment, radar, electronic-warfare (EW) and electronic-countermeasures (ECM) defense systems, as well as signal distribution networks, Mini-Circuits' MTX2-183+ wideband MMIC balun transformer exhibits an impedance ratio of 1:2, useful for applications from 2 to 18 GHz. The MMIC, leveraging gallium-arsenide (GaAs) process technology, offers excellent repeatability along with low insertion loss, low amplitude unbalance, and low phase unbalance, as well as a high level of common-mode rejection.

In addition, the 50-Ω, GaAs MMIC surface-mount balun has a secondary:primary impedance ratio of 2:1, well-suited for single-ended to differential conversion, with the typical full-band insertion loss ranging from 1.5 to 3.7 dB. Amplitude unbalance is typically 0.4 dB or better, and the phase unbalance is typically 2 deg. or better. The low insertion loss enables high-quality signal power transmission from input to output, and its common-mode rejection of 33 dB typ. enables rejection of undesired signals.

Provided in a 12-lead QFN-style plastic package measuring 0.157 × 0.118 in. (4 × 3 mm), the device saves space in dense layouts while providing low inductance, repeatable transitions, and excellent thermal contact to the PCB.

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About the Author

Alix Paultre | Editor-at-Large, Microwaves & RF

Alix is Editor-at-Large for Microwaves & RF

An Army veteran, Alix Paultre was a signals intelligence soldier on the East/West German border in the early ‘80s, and eventually wound up helping launch and run a publication on consumer electronics for the U.S. military stationed in Europe. Alix first began in this industry in 1998 at Electronic Products magazine, and since then has worked for a variety of publications, most recently as Editor-in-Chief of Power Systems Design.

Alix currently lives in Wiesbaden, Germany.

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