偏振可重构悬挂天线使用射频开关和P-I-N二极管

The 4th Joint International Conference on Information and Communication Technology, Electronic and Electrical Engineering (JICTEE) Pub Date : 2014-03-05 DOI:10.1109/JICTEE.2014.6804118

K. Boonying, C. Phongcharoenpanich, S. Kosulvit

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引用次数: 27

摘要

提出了一种使用射频开关和P-I-N二极管的偏振可重构方形平面天线，用于工作在2.45 GHz中心频率的WLAN。提出的天线由方形平面结构、三个开关(六个P-I-N二极管)、0度和90度的传输在线移相器组成。通过控制P-I-N二极管的直流偏置为5 V，电流为16 mA，天线可以在垂直、水平和倾斜极化的线性极化(LP)、左旋圆极化(LHCP)和右旋圆极化(RHCP)之间切换。仿真和实测结果表明，该天线可以覆盖2.400 GHz ~ 2.484 GHz的阻抗带宽，具有良好的圆极化轴比。

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Polarization reconfigurable suspended antenna using RF switches and P-I-N diodes

Polarization reconfigurable square flat antenna using RF switches and P-I-N diodes is presented for WLAN application operated at the center frequency of 2.45 GHz. The proposed antenna consists of the square flat structure, three switches (six P-I-N diodes), transmission-line phase shifters of 0 and 90 degrees. The antenna can be switched between 5 different states: vertical, horizontal and slant polarizations for linear polarization (LP), left-handed circular polarization (LHCP) and right-handed circular polarization (RHCP) by controlling the DC bias of 5 V and the current of 16 mA for the P-I-N diodes. The simulated and measured results show that the proposed antenna can cover the impedance bandwidth from 2.400 GHz to 2.484 GHz and good axial ratio for the circular polarization.

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来源期刊

The 4th Joint International Conference on Information and Communication Technology, Electronic and Electrical Engineering (JICTEE)

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