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Abstract
In this study, a printed quasi-Yagi antenna with a coupled slotline feed is proposed and designed. In this design, a driven dipole is excited by a slotline mode with 1 × 2 CPW-slotline divider output instead of the coplanar strip mode used in conventional quasi-Yagi antennas. A prototype antenna with dimensions of 17 mm × 34.5 mm was fabricated to demonstrate the performance of the proposed feeding scheme. Measurements show that the proposed antenna has a wide −10 dB reflection bandwidth of 41.5% (7.32–11.15 GHz) and a gain ranging from 2.0 to 8.6 dBi. The measured radiation patterns of the antenna are also presented.
Additional information
Funding
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korean government (MSIP) [grant number 2014R1A5A1011478].