Tunable ferroelectric impedance matching networks and their impact on digital modulation system performance

被引：3

作者：

Gonzalez-Rodriguez, Erick ^{[1
]}

Maune, Holger ^{[1
]}

Zheng, Yuliang ^{[1
]}

Sazegar, Mohsen ^{[1
]}

Shen, Lufei ^{[2
]}

Shah, Ibrahim Asghar ^{[3
]}

Dahlhaus, Dirk ^{[3
]}

Hofmann, Klaus ^{[2
]}

Jakoby, Rolf ^{[1
]}

机构：

[1] Tech Univ Darmstadt, Inst Microwave Engn & Photon, D-64283 Darmstadt, Germany

[2] Tech Univ Darmstadt, Integrated Elect Syst Lab, D-64283 Darmstadt, Germany

[3] Univ Kassel, Commun Lab, D-34121 Kassel, Germany

来源：

AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS | 2013年 / 67卷 / 12期

关键词：

Tunable impedance matching network; Barium-strontium-titanate; Reconfigurable architectures; Bit error rate; Error vector magnitude;

D O I：

10.1016/j.aeue.2013.08.012

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 the bit error rate performance and error vector magnitude of a tunable impedance matching network is analyzed assuming QPSK, 16-QAM and 64-QAM digital modulation schemes. The characterized tunable impedance matching network is based on barium-strontium-titanate ferroelectric thick-film varactors. Inherent dispersive behavior is subsumed into the forward transmission of the passive device. Due to this nonlinear phase response, in general to maximize the overall system performance, an agile tuning of the varactor values is demonstrated, taking into account the phase and group delay of s(21) parameter. Detailed signal simulation results based on measured data of a testbed are presented. The influence of varying matched impedances on the tuning behavior with different modulation bandwidths is discussed at a center frequency of 1.9 GHz. (C) 2013 Elsevier GmbH. All rights reserved.

引用

页码：1107 / 1117

页数：11

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