Wideband circularly polarized dielectric resonator antenna coupled with meandered‐line inductor for ISM/WLAN applications. Issue 7 (16th March 2017)

• Record Type: Journal Article
• Authors: Kumar, Rajkishor; Kumar Chaudhary, Raghvendra
• Is Part Of: International journal of RF and microwave computer-aided engineering. Volume 27:Issue 7(2017)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2017-03-16
• Subjects: circular polarization -- dielectric resonator antenna -- microstrip feed; Microwave devices -- Computer-aided design -- Periodicals; Computer-aided engineering -- Periodicals; 621.3813
• DOI: 10.1002/mmce.21108
• Languages: English
• ISSNs: 1096-4290

Abstract

Abstract: A new meandered‐line inductor fed wideband circularly polarized rectangular dielectric resonator antenna (DRA) with partial ground plane has been developed in this work. Meandered‐line inductor feed and partial ground plane are used for generation of orthogonal modes, hence circular polarization (CP) in DRA. By controlling the length of meandered‐line inductor, three different CP DRA have been designed for different wireless applications such as Wi‐MAX and WLAN/ISM 2400 band. Distribution of electric field inside rectangular DRA shows that all three antenna having TE11δ mode. Finally, a lower frequency band application at 2.4 GHz (ISM) called here as Proposed Antenna, has been considered for fabrication. This designed antenna shows measured −10 dB input impedance bandwidth of 20.67% and 3‐dB axial ratio bandwidth of 27.95% in broadside direction. All these three CP antennas (Antenna‐1 to Proposed Antenna) are showing stable gain and right hand circular polarization in broadside direction.