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A novel LTCC differentially Fed UWB antenna for the 60 GHz band

Published online by Cambridge University Press:  15 March 2011

Bill Yang ,
Alexander G. Yarovoy ,
A. Shenario Ezil Valavan ,
Koen Buisman  and
Oleksiy Shoykhetbrod
Bill Yang*
Affiliation:
IRCTR, Delft University of Technology, Mekelweg 4, 2628CD Delft, The Netherlands. Phone: +31 15 2781046.
Alexander G. Yarovoy
Affiliation:
IRCTR, Delft University of Technology, Mekelweg 4, 2628CD Delft, The Netherlands. Phone: +31 15 2781046.
A. Shenario Ezil Valavan
Affiliation:
IRCTR, Delft University of Technology, Mekelweg 4, 2628CD Delft, The Netherlands. Phone: +31 15 2781046.
Koen Buisman
Affiliation:
DIMES, Delft University of Technology, Mekelweg 4, 2628CD Delft, The Netherlands.
Oleksiy Shoykhetbrod
Affiliation:
Fraunhofer-Institut für Hochfrequenzphysik und Radartechnik FHR, Neuenahrer Strasse 20, 53343 Wachtberg, Germany.
*
Corresponding author: B. Yang Email: y.c.yang@tudelft.nl
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Abstract

In this paper a novel differentially fed Ultra-Wide Band (UWB) antenna in low-temperature co-fired ceramics (LTCC) technology to be used in the 60 GHz band for integrated RF front-ends is presented. The antenna is based on the aperture stacked patch fed via H-shaped aperture to achieve more than 10 GHz operational bandwidth. The antenna is fed by a parallel-wire transmission line which enables the antenna to be directly integrated with differential Monolithic Microwave Integrated Circuits (MMICs). To alleviate influence of the surface waves (efficiently excited in LTCC material due to its high dielectric constant) on the antenna radiation and realize uni-directional radiation patterns, a dedicated shield is added to the antenna. The measured results of the shielded antenna showed that the antenna has an operational bandwidth from 51 GHz to over 65 GHz, the gain is about 3.5–8 dBi, and −5 dB beamwidth is about ±30°. The measurement results also demonstrated that the shield indeed improves the antenna impedance bandwidth, gain, and radiation patterns substantially.

Keywords

UWB antennaAperture stacked patchLTCC technology
Type
Research Article
Information
International Journal of Microwave and Wireless Technologies , Volume 3 , Special Issue 2: 60 GHz Wireless Communication Circuits and Systems , April 2011 , pp. 171 - 177
Copyright
Copyright © Cambridge University Press and the European Microwave Association 2011

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