A NOVEL 2.4 GHz AND 6.8 GHz DUAL-BAND TRANSMITTER USING DEFECTED GROUND STRUCTURE

被引：2
|
作者：
Chen, Xiaoqun [1 ]
Shi, Xiaowei [1 ]
Guo, Yuchun [1 ]
Xiao, Changmin [1 ]
机构：
[1] Xidian Univ, Natl Lab Antennas & Microwave Technol, Xian 710071, Shaanxi, Peoples R China
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2008年 / 50卷 / 12期
关键词：
dual band transmitter; frequency doubler; power amplifier; DGS;
D O I：
10.1002/mop.23935
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A novel dual-band module transmitter is presented in this article. It works as a power amplifier at 2.4 GHz that satisfies the 802.11b/g wireless LAN standard and performs as an active frequency; doubler at 6.8 GHz with the stop band characteristics of defected ground structure (DGS). The equivalent circuit unit and the stop band characteristics of the microstrip DGS are analyzed and simulated. For the proposed transmitter, second harmonic suppression is below -52.6 dBc in the amplifier mode, and fundamental suppression is below -41 dBc in the frequency doubler mode. It achieves 13.7 dBm of PI dB and its gain is 16.5 dB at amplifier mode, and its maximum output is 7.8 dBm at 6.8 GHz in frequency double mode. (c) 2008 Wiley Periodicals. Inc. Microwave Opt Technol Lett 50: 3225-3228, 2008: Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23935
引用
收藏
页码：3225 / 3228
页数：4
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