A new compact wideband balun

A wideband balun developed for MMIC (monolithic microwave integrated circuit) applications is discussed. The approach utilizes simple RF reflection and coupling principles to achieve a wideband performance in a simple microstrip configuration. A balun with better than 2 dB of insertion loss, 1 dB and 5 degrees of amplitude and phase balance over 7 to 19 GHz has been realized.<
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