Open AccessA Simple Four-Beam Reconfigurable Antenna Based on Monopole
Author(s) -
Guiping Jin,
Miaolan Li,
Dan Liu,
Guangjie Zeng
Publication year - 2018
Publication title -
ieee access
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.587
H-Index - 127
ISSN - 2169-3536
DOI - 10.1109/access.2018.2845552
Subject(s) - aerospace , bioengineering , communication, networking and broadcast technologies , components, circuits, devices and systems , computing and processing , engineered materials, dielectrics and plasmas , engineering profession , fields, waves and electromagnetics , general topics for engineers , geoscience , nuclear engineering , photonics and electrooptics , power, energy and industry applications , robotics and control systems , signal processing and analysis , transportation
A simple pattern reconfigurable antenna based on monopole is presented in this paper. The antenna consists of four folded monopoles and a windmill-shape ground plane. The central patch is fed by a coaxial probe to decide which monopole is excited. Four reconfigurable modes can be achieved by changing the states of four PIN diodes mounted on the feeding lines. And the maximum radiation directions of the proposed antenna are deflected from φ = 30°, φ = 120°, φ = 210°, and φ = 300° at azimuth plane in four operating modes. The proposed antenna is simulated, fabricated, and measured. The experimental results indicate that the antenna can achieve a measured 10-dB bandwidth of 25.7% (3.32-4.3 GHz), a 10-dB front-to-back ratio of 17.7% (3.6-4.3 GHz), and a stable average gain of 3.3 dBi within the operating band. These characteristics make the designed antenna fit for C-band satellite communication system.
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