Improved design of an Ultra Wideband Universal Serial Bus device mounted antenna based on comparative radiation efficiency measurements

Author

Pires, N. ; Letizia, M. ; Boyes, S. ; Yang Lu ; Yi Huang ; Skrivervik, A.K. ; Moreira, A.A.

Author_Institution

Inst. de Telecomun., Inst. Super. Tecnico, Lisbon, Portugal

fYear

2011

fDate

11-15 April 2011

Firstpage

1430

Lastpage

1434

Abstract

The present paper reports a planar, microstrip-fed Ultra Wideband (UWB) monopole antenna designed to operate inside a Universal Serial Bus (USB) dongle. The antenna was dielectrically loaded with a sandwich fabricated in commercial substrate. This design improves on a coaxial fed monopole presented earlier by showing a better matching through the UWB [3.1 - 10.6] GHz band. Wideband efficiency measurements were conducted, using the reverberation chamber technique and a cavity-based approach, called the source-stirred method. The dielectric loading implementation described here has a small impact on antenna radiation efficiency, with the loaded prototype having a figure higher than 78% over the UWB band.

Keywords

antenna feeds; antenna radiation patterns; microstrip antennas; microwave antennas; microwave measurement; monopole antennas; planar antennas; reverberation chambers; ultra wideband antennas; antenna radiation efficiency; comparative radiation efficiency measurements; frequency 3.1 GHz to 10.6 GHz; microstrip-fed ultrawideband monopole antenna; planar antenna; reverberation chamber technique; source-stirred method; ultrawideband universal serial bus device mounted antenna; Antenna measurements; Dielectrics; Loading; Prototypes; Reverberation chamber; Ultra wideband antennas; Universal Serial Bus;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EUCAP), Proceedings of the 5th European Conference on

Conference_Location

Rome

Print_ISBN

978-1-4577-0250-1

Type

conf

Filename

5781779