V-Band balun on the Metallic Nanowire Membrane (MnM) Interposer Technology

In this paper we present a balun on the MnM interposer technology platform based on a microstrip to CPS transition that was designed to feed a quasi-Yagi antenna at 60 GHz. Two microstrip lines with lengths differing in half a wavelength create a phase shift of 180° from a single-ended input. The balun structure occupies an area of 0.2 mm
²
and operates in the frequency range between 67 GHz and 76 GHz. The output amplitude and phase imbalance of the balun are lower than 1 dB and 10 degrees, respectively.