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A four‐port 12‐beam phased array antenna system
Author(s) -
Chang ChingJen,
Yen Lei,
Datta Jayanta,
Lin HsinPiao,
Jeng ShiannShiun
Publication year - 2014
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.28356
Subject(s) - phased array , microwave , port (circuit theory) , antenna (radio) , mimo , antenna array , beam (structure) , engineering , electronic engineering , electrical engineering , computer science , telecommunications , beamforming , civil engineering
In this work, we propose a novel solution for a switched beamformer called the adjustable phased array system (APAS). By programming electronic switches, the implemented four‐antenna APAS circuit generates 12 phase‐shift angles that are multiples of ± π / 8 . Compared to the legacy N × N Butler matrix, the proposed APAS only needs one input port and four output ports and can provide more beam patterns with lower cost. Therefore, the APAS structure is a practical solution to satisfy the modern multiuser MIMO applications. © 2014 Wiley Periodicals, Inc. Microwave Opt Technol Lett 56:1375–1378, 2014