Active Integrated Antenna Technique

Accession number;04A0112503
Title;Active Integrated Antenna Technique
Author; SEKI T (Ntt Network Innovation Lab., Yokosuka-shi, Jpn) NUNO F (Ntt Network Innovation Lab., Yokosuka-shi, Jpn) NISHIKAWA K (Ntt Network Innovation Lab., Yokosuka-shi, Jpn) CHO K (Ntt Network Innovation Lab., Yokosuka-shi, Jpn)
Journal Title;NTT Tech Rev
Journal Code:F0282C
ISSN:1348-3447
VOL.2;NO.1;PAGE.36-43(2004)
Figure&Table&Reference;FIG.11, TBL.3, REF.9
Pub. Country;Japan
Language;English
Abstract;We clarified the mounting precision for the active integrated array antenna for 25-GHz-band wireless access communication systems and confirmed that wirebonding is useful in constructing such antennas for the quasi-millimeter-wave frequency band, resulting in low-cost antenna systems. We also present an active integrated antenna configuration designed for broadband mobile wireless access systems using the 25-GHz band. The antenna and RF circuits are integrated into each side of a thick copper backing plate and they are connected through microstrip line/slot transitions. The antenna exhibited output power of 14.6dBm and a noise figure of less than 5dB. A wireless system using this antenna showed a 6-dB improvement in packet error rate compared with one using a passive antenna with the same array design. Furthermore, we obtained the first license for an active integrated antenna for high-speed wireless communication systems in Japan. (author abst.)