This paper presents a novel and simple quasi-Yagi antenna (QYA) based on a monopole-driven element with a coplanar waveguide (CPW) feed-line. The QYA is implemented on a single-sided FR4 substrate with a thickness of 0.8 mm. It consists of a monopole driven element, a parasitic reflector and director element, a 50Ω CPW feed-line, and a ground plane. By properly designing, a wide impedance bandwidth of 63.5% from 1.58-3.05 GHz for reflection coefficient less than -10 dB has been achieved. A maximum gain of the antenna reaches 5 dBi. Compared to the conventional QYAs, the proposed antenna has a much simpler feeding structure and also a compact size of 58 mm × 58 mm. In addition, it has stable end-fire radiation properties over the entire range of frequency. The measured results agree well with the simulated ones.