Wideband Directional Microstrip Antennas fed by CPW-loop Combination

Author

Nasimuddin ; Chen, Zhi Ning

Author_Institution

A*STAR, Singapore

fYear

2007

fDate

24-26 Sept. 2007

Firstpage

700

Lastpage

702

Abstract

A new coplanar waveguide (CPW)-loop combination feed wideband directional and compact multilayer microstrip antenna is presented for UWB applications. The antenna consists of two dielectric layers; CPW-loop on the ground plane, main patch on the middle layer and four asymmetric parasitic patches on the upper layer. The feed consists of a CPW structure and a loop on a ground plane. The antenna has a measured 10dB return loss bandwidth of 36% (3.12GHz to 4.51GHz) and maximum gain more than 5dBi over the 48% (3.0GHz to 4.90GHz). The total thickness of antennas is 4.65 mm. The proposed technique is very useful for designing wide bandwidth antennas on multilayer printed circuit board.

Keywords

antenna feeds; coplanar waveguide components; microstrip antennas; ultra wideband communication; coplanar waveguide-loop combination feed; ground plane; multilayer dielectric layers; parasitic patches; wideband directional microstrip antennas; Antenna feeds; Antenna measurements; Bandwidth; Broadband antennas; Coplanar waveguides; Dielectric loss measurement; Directive antennas; Microstrip antennas; Nonhomogeneous media; Ultra wideband antennas; CPW feed; UWB; loop coupled; microstrip antennas; multilayer dielectric layers; wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Ultra-Wideband, 2007. ICUWB 2007. IEEE International Conference on

Conference_Location

Singapore

Print_ISBN

978-1-4244-0521-3

Electronic_ISBN

978-1-4244-0521-3

Type

conf

DOI

10.1109/ICUWB.2007.4381035

Filename

4381035