Browse over 10,000 Electronics Projects using the Page Numbering provided at the bottom of each Page.

Low Cost, Triple Balanced, LTCC Mixer

Low Cost, Triple Balanced, LTCC Mixer

Double Balanced Mixers are used widely in frequency translation applications. Some of the advantages of the double balanced mixer are good L-R and L-I isolation and moderate R-I isolation. Triple Balanced Mixers (also called Double Doubly-Balanced Mixers) have three separate baluns for LO, RF and IF ports. This structure helps provide wide bandwidth and good L-R, L-I and R-I isolations, return loss, compression and IP3, all at the expense of 3 dB higher LO power. The usual disadvantages of a triple balanced mixer are the number of components that results in large size, and the complexity that makes it an expensive design. Mini-Circuits has overcome these disadvantages by designing a new patented LTCC (Low temperature Co-fired Ceramic) based mixer, substantially reducing the size and complexity. It uses a combination of LTCC baluns, a single ferrite-core balun, and integrated Schottky diode quads to realize a small triple balanced mixer.

 

Top