Title :
A compact, symmetric branched chain monopole for dual wide band operation
Author :
Awadalla, H.H. ; Shams, Shoukry I. ; Allam, A.M.M.A.
Author_Institution :
Inf. Eng. & Technol. (IET), German Univ. in Cairo (GUC), Cairo, Egypt
Abstract :
A novel design of a dual wide band branched chain monopole is presented and discussed. The antenna has a unique design consisting of a U shape with a center strip fed by a 50Ω microstrip line with the integration of branched chains in the appropriate places to achieve dual band operation. The antenna is low profile and has overall dimensions 42mm × 40mm, which is compact in size for portable applications. The simulated results show that the antenna operates at (1.2GHz-2.9GHz) and (5.1GHz-6.1GHz) which includes the following applications: DCS(1.71-1.88GHz)/PCS(1.85-1.99GHz)/UMTS(1.92-2.17GHz) cellular bands, the 2.4/5.2/5.8GHz WLAN bands and finally the 2.5/5.5GHz WiMAX bands. The symmetrical geometric structure of the antenna provides omnidirectional radiation patterns. The design criteria of this antenna as well as the outcome of the experimental results are presented in this paper. The antenna is fabricated and the return loss measured using a vector network analyzer. The measured and simulated results are in good agreement.
Keywords :
antenna radiation patterns; broadband antennas; microstrip lines; monopole antennas; multifrequency antennas; UMTS; branched chain monopole antenna; dual wideband antenna; frequency 1.2 GHz to 2.9 GHz; frequency 5.16 GHz to 6.16 GHz; microstrip line; omnidirectional radiation patterns; size 40 mm; size 42 mm; Antenna measurements; Antenna radiation patterns; Loss measurement; Microstrip antennas; WiMAX; Wireless LAN; 2.4GHz WLAN; 2.5 GHz WiMAX; 5.2GHz WLAN; 5.5GHz WiMAX; 5.8GHz WLAN; Digital Cellular System(DCS); Dual wide band frequency operation; Personal communication system(PCS); Universal mobile telecommunication system(UMTS); compact microstrip fed; monopole antenna;
Conference_Titel :
Microwave Symposium (MMS), 2010 Mediterranean
Conference_Location :
Guzelyurt
Print_ISBN :
978-1-4244-7241-3
DOI :
10.1109/MMW.2010.5605132
