认知无线电系统小型化可重构缝隙天线的变容二极管设计

2016 Fourth International Japan-Egypt Conference on Electronics, Communications and Computers (JEC-ECC) Pub Date : 2016-07-21 DOI:10.1109/JEC-ECC.2016.7518968

H. Atallah, A. Abdel-Rahman, K. Yoshitomi, R. Pokharel

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引用次数: 8

摘要

提出了一种用于交织认知无线电(CR)前端系统的小型可调谐微带线馈电槽天线。该天线采用4个变容二极管控制天线谐振频率。天线的谐振频率可以通过改变谐振槽的有效电长度来进行电子调谐，这是通过使用槽内的变容二极管来实现的。此外，变容二极管的简单偏置对天线性能的影响很小。仿真结果表明，该天线能够在1.83 ~ 2.76 GHz的0.93 GHz调谐范围内进行频率切换，频率调谐范围为40.5%。该天线的小型化尺寸为25 × 30 × 0.762 mm3。

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Design of miniaturized reconfigurable slot antenna using varactor diodes for cognitive radio systems

In this paper, a new compact tunable microstrip-line fed slot antenna is proposed for interweave cognitive radio (CR) front end systems. The proposed antenna utilized four varactor diodes to control the antenna resonant frequency. The resonant frequency of the antenna can be electronically tuned by changing the effective electrical length of the resonant slot, which is accomplished by employing the varactor diodes inside the slot. Moreover, the simple biasing of the varactor diodes has a small effect on the antenna performance. Simulation results show that the proposed antenna is capable of frequency switching over a tuning range of 0.93 GHz from 1.83 to 2.76 GHz with 40.5 % frequency tuning range. The proposed antenna has a miniaturized size of 25 × 30 × 0.762 mm3.

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来源期刊

2016 Fourth International Japan-Egypt Conference on Electronics, Communications and Computers (JEC-ECC)

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