Conductor Backed CPW-Fed Dual-Mode Excited High Gain Cylindrical Cavity DRA for Unmanned Aircraft Systems (UAS) or Drone Data-Link Applications at C Band. Issue 5 (3rd September 2019)

• Record Type: Journal Article
• Authors: Kumar, Pramod; Dwari, Santanu; Singh, Shailendra; Kumar, Jitendra; Kumar, Amitesh
• Is Part Of: IETE technical review. Volume 36:Issue 5(2019)
• Page Start: 463
• Page End: 474
• Publication Date: 2019-09-03
• Subjects: C band -- conductor backed CPW -- Cylindrical cavity DRA -- dual mode -- High gain -- Unmanned aircraft systems; Telecommunication -- Periodicals; Electronics -- Periodicals; Electronics; Telecommunication; Periodicals; 621.38
• DOI: 10.1080/02564602.2018.1503568
• Languages: English
• ISSNs: 0256-4602

Abstract

ABSTRACT: In this article, a dual-mode high gain cylindrical cavity dielectric resonator antenna (CCDRA) excited by conductor backed coplanar waveguide (CB-CPW) has been investigated for unmanned aircraft systems (UAS) or drone data-link applications at the C band. A CB-CPW has been used to excite the CCDRA to achieve bore-sight radiation pattern. A wide impedance bandwidth of 1100 MHz (4.3–5.4 GHz) has been achieved due to excitation of HE11δ and HE21δ modes in dielectric resonator antenna (DRA) by inserting a cylindrical shaped air cavity in DRA. The antenna is finally optimized using 3-D electromagnetic simulator to achieve high gain, good impedance bandwidth, and stable radiation pattern. The prototype antenna achieves 22% impedance bandwidth with more than 7.5 dB average peak gain and 95% estimated efficiency throughout the operating band. The experimental results validate the performance of CCDRA. Such antenna can be easily installed on the unmanned aerial vehicle/drone platform for data-link as well as other applications.