Bandwidth enhancement of compact monopole antenna with triple band rejections. Issue 1 (1st January 2016)

• Record Type: Journal Article
• Authors: Li, Tong; Zhu, Cheng; Cao, Xiangyu; Gao, Jun
• Is Part Of: Electronics letters. Volume 52:Issue 1(2016)
• Page Start: 8
• Page End: 10
• Publication Date: 2016-01-01
• Subjects: monopole antennas -- microstrip antennas -- coplanar waveguides; bandwidth enhancement -- compact monopole antenna -- triple band rejections -- ultrawideband applications -- semicircular patch -- coplanar waveguide line -- trident shaped feed line -- C‐shaped stub; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2015.2301
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A compact monopole antenna with enhanced bandwidth and triple band rejections for ultra‐wideband applications is presented. The base of the proposed antenna is a semicircular patch which is fed by a modified tapered coplanar waveguide line. By using the trident‐shaped feed line, much wider impedance bandwidth is obtained. To avoid potential interferences, two trapezoid stubs and a C‐shaped stub are printed on the back surface of the substrate and are connected to the antenna through three vias. The proposed antenna is practically fabricated with a compact size of 20 × 24 mm 2 . Good agreement is achieved between the simulation and measurement, which shows that the proposed antenna offers a very wide bandwidth from 3.02 to 20.8 GHz (149%) with triple band rejections covering the 3.5 GHz WiMAX and 5.2/5.8 GHz WLAN bands.