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

fYear

2010

fDate

25-27 Aug. 2010

Firstpage

56

Lastpage

59

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium (MMS), 2010 Mediterranean

Conference_Location

Guzelyurt

Print_ISBN

978-1-4244-7241-3

Type

conf

DOI

10.1109/MMW.2010.5605132

Filename

5605132