The BAL-0067 from Marki Microwave is an Isolation Balun that operates from 300 kHz to 67 GHz. It is a 1:2 transformer with a 50-ohm unbalanced, 100-ohm differential, and 50-ohm balanced port. This balun has an insertion loss of less than 8.5 dB and provides 25 dB of isolation. It is an integrated power divider-inverter balun with a Wilkinson power divider on the common port, an inverter before the negative port, and a matched delay line on the positive port. This provides isolation between the differential ports, making these baluns very versatile tools for laboratory use. It has an amplitude balance of 0.7 dB and a phase balance of 4°. The BAL-0067
This balun is available in a package that measures 91.44 x 31.75 x 17.74 mm with 1.85 mm connectors. It is ideal for use in analog to digital converters, balanced receivers, baseband digital modulation, and signal integrity applications in differential signaling, integrated circuit testing, and general lab and experimental use.