Broadband quasi-Yagi antenna with enhanced radiation pattern for MIMO applications

Author

Chih-Chuan Yen ; Nysen, Paul

Author_Institution

Sierra Wireless Inc., Carlsbad, CA, USA

fYear

2013

fDate

7-13 July 2013

Firstpage

880

Lastpage

881

Abstract

We present in this paper a planar broadband Yagi antenna design with modified director structure to enhance the radiation pattern in azimuthal plane. The antenna is simulated and measured to have characteristics of more than 50% impedance bandwidth and high antenna gain. With two identical antennas being placed back-to-back against each other, an omnidirectional radiation pattern is achievable. The field-based Envelope Correlation Coefficient (ECC) is also calculated to be <;0.1 across operating bandwidth due to very good pattern orthogonality and >20dB isolation between two antennas. This antenna system proves to be well suited for 3G/4G cellular MIMO applications.

Keywords

3G mobile communication; 4G mobile communication; MIMO communication; Yagi antenna arrays; antenna radiation patterns; broadband antennas; cellular radio; omnidirectional antennas; planar antenna arrays; 3G-4G cellular MIMO applications; MIMO applications; Yagi-Uda antenna; azimuthal plane; broadband quasi-Yagi antenna; enhanced radiation pattern; field-based envelope correlation coefficient; identical antennas; impedance bandwidth; modified director structure; omnidirectional radiation pattern; pattern orthogonality; planar broadband Yagi antenna design; radiation pattern; Antenna measurements; Antenna radiation patterns; Bandwidth; Broadband antennas; Broadband communication; MIMO;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation Society International Symposium (APSURSI), 2013 IEEE

Conference_Location

Orlando, FL

ISSN

1522-3965

Print_ISBN

978-1-4673-5315-1

Type

conf

DOI

10.1109/APS.2013.6711099

Filename

6711099