System integration and radiation pattern measurements of a phased array antenna employing an integrated photonic beamformer for radio astronomy applications

被引：37

作者：

Burla, Maurizio ^{[1
]}

Roeloffzen, Chris G. H. ^{[1
]}

Zhuang, Leimeng ^{[1
]}

Marpaung, David ^{[1
]}

Khan, Muhammad Rezaul ^{[1
]}

Maat, Peter ^{[2
]}

Dijkstra, Klaas ^{[2
]}

Leinse, Arne ^{[3
]}

Hoekman, Marcel ^{[3
]}

Heideman, Rene ^{[3
]}

机构：

[1] Univ Twente, CTIT Res Inst, Telecommun Engn Grp, NL-7500 AE Enschede, Netherlands

[2] ASTRON, NL-7991 PD Dwingeloo, Netherlands

[3] LioniX BV, NL-7500 AE Enschede, Netherlands

来源：

APPLIED OPTICS | 2012年 / 51卷 / 07期

关键词：

TRUE-TIME-DELAY; NULLING SYSTEM; FIBER; LINES; NETWORK; DISPERSION;

D O I：

10.1364/AO.51.000789

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper we describe the system integration and the experimental demonstration of a photonically beamformed four-element receiving array antenna for radio astronomy applications. To our knowledge, the work described here is the first demonstration of the squint-free, continuously tunable beamsteering capability offered by an integrated photonic beamformer based on optical ring resonator true-time-delay units, with measured radiation patterns. The integrated beamformer is realized in a low loss, complementary metal-oxide-semiconductor (CMOS) compatible optical waveguide technology. The measurements show a wideband, continuous beamsteering operation over a steering angle of 23.5 degrees and an instantaneous bandwidth of 500 MHz limited only by the measurement setup. c 2012 Optical Society of America

引用

页码：789 / 802

页数：14

共 52 条

[11] DIRECT MEASUREMENT OF WAVELENGTH DISPERSION IN OPTICAL FIBRES-DIFFERENCE METHOD [J].