Marki Microwave Offers Low Loss, High Rejection, Passive MMIC Diplexers from DC to 60 GHz

Marki Microwave has introduced new passive MMIC diplexers that offer extremely broad, resonance-free passbands. A diplexer is a three-port device that combines or divides a common signal according to frequency into low pass and high pass ports. Unlike a duplexer, which combines two bandpass filters, diplexers can support wider frequency ranges.

Marki’s new diplexers can be used as low loss combiners or dividers for signals with different frequencies or as reflectionless filters (with one port terminated) at the output of mixers and other nonlinear devices with many harmonics. These GaAs MMIC filters have tight fabrication tolerances offered as bare die and provide low loss and extremely broad rejection bands.

These broadband passive MMIC diplexers are a combination of high pass and loss pass filters, capable of multiplexing low frequency (up to 6 GHz) and high frequency (up to 26.5 GHz) signals. They can also be used as a reflectionless high pass or low pass filter when terminated with an internal/external 50 Ohm load. Passive GaAs MMIC technology allows the production of smaller filter constructions that replace larger form factor circuit board constructions. Tight fabrication tolerances allow for less unit-to-unit variation than traditional filter technologies.

Marki’s new passive MMIC diplexers are available as a connectorized module or a wire bondable die. These diplexers show low variations from unit to unit which allows for accurate simulations using the provided S3P file taken from measured production units.

Features of Marki's passive MMIC Diplexers:

• High Isolation
• Reentrance and Resonance Free Passbands
• Reflectionless termination of unwanted harmonics
• Broad, high frequency passbands

Click here to learn more about Marki Microwave's passive MMIC diplexers on everything RF.