Compact pattern reconfigurable LTE antenna

Author

Kowalewski, Jerzy ; Mahler, Tobias ; Heine, Christoph ; Zwick, T.

Author_Institution

Inst. fur Hochfrequenztech. und Elektron., Karlsruhe Inst. of Technol., Karlsruhe, Germany

fYear

2014

fDate

4-6 March 2014

Firstpage

72

Lastpage

75

Abstract

This paper presents a compact pattern reconfigurable antenna for automotive mobile systems. The presented antenna operates in the 2.6 GHz LTE band in Europe and is capable of switching between four different directivity patterns. The generated main beams for these four states are shifted by 90° in azimuth in respect to one another. The antenna elements can be switched between active state or reflector state with the use of PIN diodes. With the chosen construction the PIN diodes can be easily fed with the help of a coaxial bias-T and a simple feeding structure. The measurement results prove good performance and the suitability for use in LTE applications.

Keywords

Long Term Evolution; UHF antennas; antenna feeds; antenna radiation patterns; p-i-n diodes; Europe; LTE band; PIN diodes; active state; antenna elements; automotive mobile systems; coaxial bias-T; compact pattern reconfigurable antenna; directivity patterns; feeding structure; frequency 2.6 GHz; reflector state; Antenna accessories; Antenna measurements; Antenna radiation patterns; Loss measurement; PIN photodiodes;

fLanguage

English

Publisher

ieee

Conference_Titel

Antenna Technology: "Small Antennas, Novel EM Structures and Materials, and Applications" (iWAT), 2014 International Workshop on

Conference_Location

Sydney, NSW

Print_ISBN

978-1-4799-2331-1

Type

conf

DOI

10.1109/IWAT.2014.6958599

Filename

6958599