Pulse-Shaping Strategy for Time Modulated Arrays-Analysis and Design

被引：89

作者：

Bekele, Ephrem T. ^{[1
]}

Poli, Lorenzo ^{[1
]}

Rocca, Paolo ^{[1
]}

D'Urso, Michele ^{[2
]}

Massa, Andrea ^{[1
]}

机构：

[1] Univ Trento, Dept Informat Engn & Comp Sci, I-38123 Trento, Italy

[2] SELEX Sistemi Integrati, Zona ASI, I-38100 Naples, Italy

来源：

IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION | 2013年 / 61卷 / 07期

关键词：

Beam-forming; pulse-shaping; sideband radiation; time modulated array (TMA); LINEAR ARRAYS; RADIATION; SUPPRESSION; PLANAR;

D O I：

10.1109/TAP.2013.2256096

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：

Time-modulated arrays (TMAs) are antenna systems where the transmitted or received signal is modulated by periodic time pulses. Several strategies have been proposed for defining the characteristics of the pulse sequence to control the antenna radiation pattern starting from the hypothesis of ideal radio-frequency (RF) switches with instantaneous rise and fall time. In this paper, the use of switches having a non-null transition between the on and off state is taken into account and the impact on the radiation features is studied and verified through a set of numerical results also in comparative fashion with ordinary rectangular pulses.

引用

页码：3525 / 3537

页数：13

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