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Simple Broadband Planar CPW-Fed Quasi-Yagi Antenna

2007; IEEE Antennas & Propagation Society; Volume: 6; Linguagem: Inglês

10.1109/lawp.2006.890751

1548-5757

H.K. Kan, R.B. Waterhouse, Amin Abbosh, M.E. Bialkowski,

Bluetooth and Wireless Communication Technologies

In this letter, we present a novel coplanar waveguide fed quasi-Yagi antenna with broad bandwidth. The uniqueness of this design is due to its simple feed selection and despite this, its achievable bandwidth. The 10 dB return loss bandwidth of the antenna is 44% covering X-band. The antenna is realized on a high dielectric constant substrate and is compatible with microstrip circuitry and active devices. The gain of the antenna is 7.4 dBi, the front-to-back ratio is 15 dB and the nominal efficiency of the radiator is 95%.