In this work, a cavity-backed antenna with increased bandwidth and minimum design complexity for operation at millimeter wave (mmW) frequencies is proposed. Namely, by leveraging our recently proposed frequency pulling technique (FPT) and aperture coupled feeding mechanisms we increase the bandwidth of our antenna 1.8 times compared to conventional cavity-backed designs found in the literature without compromising directivity, radiation efficiency and size. This design is a good candidate for practical applications in next-generation communication systems.