A WLCSP 79-GHz band harmonic mixer with high LO-leakage suppression

Autor: Takeshi Kawasaki, M. Kubota, Osamu Anegawa, T. Tokumitsu, S. Ogita, K. Tsukashima
Rok vydání: 2016
Předmět:
Zdroj: 2016 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT).
DOI: 10.1109/rfit.2016.7578209
Popis: A 79-GHz band miniature mixer fabricated by using our 3-D WLCSP technology and PHEMT is demonstrated. The mixer consists of a balanced harmonic mixer pair to enhance LO-to-RF leakage suppression. The balun for out-of-phase power splitting is a half-sized Marchand balun, effectively miniaturizing the mixer unit. The 40-GHz and 80-GHz band baluns were designed in the same fashion. Though their bandwidth becomes much narrower than the popular full-size one, the realized bandwidth and 180-degree phase difference were good enough for the radar application. The achieved balanced harmonic mixer is being successfully applied to RX and TX for intelligent automotive radar system.
Databáze: OpenAIRE