Title :
Conformal log.-periodic antenna with integrated feeding network for UWB-MIMO applications
Author :
Orlob, C. ; Dao, Q.H. ; Geck, B.
Author_Institution :
Inst. fur Hochfrequenztech. und Funksysteme, Leibniz Univ. Hannover, Hannover, Germany
Abstract :
This paper presents a compact design of a conformal log periodic four arm antenna with feeding network integrated on a single conical MID. The antenna structure incorporates two decoupled, predominantly linearly polarized radiators. Both radiators provide an input matching of better than -8 dB over a frequency range from 4.5GHz to 11GHz. The antenna radiation patterns are characterized by a front-to-back ratio between 4 dB - 7.5 dB and a maximum gain of 5 dBi between 5GHz and 7GHz in main beam direction. The pattern correlation coefficients below 0.3 confirm broadband diversity properties sufficient for MIMO applications. The overall antenna diameter and height are 50mm and 24mm respectively. It could therefore be used as a surface mounted or ceiling antenna in buildings, vehicles or aircrafts for communication systems.
Keywords :
MIMO communication; antenna radiation patterns; conformal antennas; diversity reception; log periodic antennas; polarisation; surface mount technology; ultra wideband antennas; MID; MIMO; UWB; aircrafts; antenna radiation pattern; antenna structure; broadband diversity; buildings; ceiling antenna; conformal log periodic antenna; frequency 4.5 GHz to 11 GHz; frequency 5 GHz to 7 GHz; front to back ratio; gain 4 dB to 7.5 dB; integrated feeding network; linear polarized radiator; molded interconnect device; pattern correlation coefficient; size 24 mm; size 50 mm; surface mounted antenna; vehicles; Gain; Log.-periodic antenna; MIMO; conformal antenna; molded interconnect devices; ultra wideband antenna;
Conference_Titel :
Microwave Conference (GeMiC), 2012 The 7th German
Conference_Location :
Ilmenau
Print_ISBN :
978-1-4577-2096-3
Electronic_ISBN :
978-3-9812668-4-9
