Compact differential-fed dipole antenna with wide bandwidth, stable gain and low cross-polarization

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

12 Scopus Citations
View graph of relations

Related Research Unit(s)


Original languageEnglish
Pages (from-to)1019-1021
Journal / PublicationElectronics Letters
Issue number15
Online published12 Jul 2017
Publication statusPublished - 20 Jul 2017


A novel differential-fed dipole antenna with compact size is proposed and investigated. The size of the antenna is only 0.8λ0 × 0.8λ0 × 0.13λ0 (where λ0 is the free-space wavelength at the centre frequency). By utilising a pair of complementary sources, the antenna achieves good unidirectional radiation performances. The antenna has an impedance bandwidth of 38.5% for SWR , 2 from 1.63 to 2.4 GHz. The boresight gain ranges from 7.8 to 9.6 dBi. The cross-polarisation level is lower than -25 dB while the front-to-back ratio is above 12 dB across the operating frequency band. Moreover, the antenna is simple structured and easy to be fabricated.