A broadband inverted umbrella shaped cylindrical dielectric resonator antenna for "WLAN" and "C" band applications. Issue 6 (11th February 2017)

• Record Type: Journal Article
• Authors: Vinodha, E.; Raghavan, S.
• Is Part Of: International journal of RF and microwave computer-aided engineering. Volume 27:Issue 6(2017)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2017-02-11
• Subjects: cylindrical dielectric resonator antenna (CDRA) -- microstrip feed -- stub; Microwave devices -- Computer-aided design -- Periodicals; Computer-aided engineering -- Periodicals; 621.3813
• DOI: 10.1002/mmce.21100
• Languages: English
• ISSNs: 1096-4290

Abstract

Abstract: The main objective of the present article is to improve the bandwidth of a low profile Cylindrical Dielectric Resonator Antenna (CDRA) and operate it for WLAN and "C" band applications. An inverted umbrella shaped CDRA excited by a microstrip feedline with single stub is proposed here. Efficient coupling has been achieved by means of a single stub microstrip feed between DRA and the feed. The new shape of DRA and a single stub microstrip feed improves the bandwidth significantly as high as 28% from 5 to 6.67 GHz which is quite useful for both WLAN and "C" band applications. The proposed antenna is simple in construction, easy to fabricate, low profile and thickness of CDRA is only 5 mm. A parametric study is performed using Ansoft HFSS simulation software to optimize the antenna performance. The proposed CDRA is fabricated and the characteristics of the antenna are measured.