Header menu link for other important links
Compact asymmetric cross-shaped rectangular dielectric resonator antenna for wideband circular polarization
, R.K. Chaudhary
Published in John Wiley and Sons Inc.
Volume: 61
Issue: 7
Pages: 1863 - 1873
A compact asymmetric cross-shaped dielectric resonator (DR) antenna with broadside wideband circularly polarized has been investigated by using the coaxial probe feeding technique. The presented antenna consists of the asymmetric cross-shaped DR, a metal strip, and a coaxial feed. Here, the metal strip is used at the corner of the cross-shaped DR to reduce the excessive tangential electric field and acts as a mirror for the normal filed components. Therefore, the orthogonal modes TExδ11 and TEy1δ1 are excited at resonance frequencies of 4.55 GHz and 5.55 GHz in this antenna structure, and because of these modes, the proposed antenna is able to produce CP fields. The antenna with −10 dB impedance bandwidth provides the measured results of 43.84%, whereas the measured 3-dB axial ratio bandwidth is found to be 11.23%. Moreover, the proposed antenna shows low profile geometry, that is, 0.175λ0, where λ0 is the wavelength at the central frequency. © 2019 Wiley Periodicals, Inc.
About the journal
JournalData powered by TypesetMicrowave and Optical Technology Letters
PublisherData powered by TypesetJohn Wiley and Sons Inc.