Tunable Delay Compensation Circuit in Polar Loop Transmitter for WiMAX Applications

被引：0

作者：

Chang, Yao-Wei ^{[1
]}

Kuo, Chien-Nan ^{[1
]}

机构：

[1] Natl Chiao Tung Univ, Dept Elect Engn, Hsinchu, Taiwan

来源：

2010 ASIA-PACIFIC MICROWAVE CONFERENCE | 2010年

关键词：

Polar loop transmitter; Group delay; Pade approximant; All pass filter (APF); Delay bandwidth product (DBW); ANALOG DELAY;

D O I：

暂无

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：

In this paper, a time delay circuit is designed for path mismatch compensation in the polar loop transmitter for the WiMAX standard. The delay circuit contains two stages, each realized in the second-order form of the Pade approximant, to account for a tuning range from 1 ns to 10 ns in 1 ns steps. The proposed circuit is fabricated using 0.35-mu m SiGe technology in order to be incorporated into a fully integrated transmitter in the future. The measurement result in network analyzer shows the delay dispersion in worst case within 30 MHz signal bandwidth has 7% variation and has gain dispersion 1.4 dB.

引用

页码：426 / 429

页数：4

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