**8. References**


FCC (2002). Federal Communications Commission, FCC 02-48, ET-Docket 98-153, "*First Report and Order"*, Apr. 2002.

182 Ultra Wideband – Current Status and Future Trends

*International Research Centre for Telecommunication and Radar(IRCTR), Netherlands* 

The research reported in this work was effectuated with in the frame of the "Wise Band Sparse Element Array Antennas" WiSE-project, a scientific undergone financed by the Dutch Technology Foundation (Stichting Technische Wetenschapen – STW). This support is hereby gratefully acknowledged. This technological-transfer is made possible to the "Sensor Technology Applied in Reconfigurable Systems for Sustainable Security" STARS-project thanks to the successful collaboration between two national institutions IRCTR (Netherlands), and METRA (Romania), with Thales, TNO, ASTRON and ESA as

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Balanis, C.A.(1997). Antenna theory analysis and design, Wiley Inc, 2nd ed. New York, 1997. Bataller, M.F. et al.(2006), An overview of planar monopole antennas for UWB application,

Biscontini, B. et al.(2006), A Novel Multilayered Planar Antenna for Ultra Wide Band (UWB) Intelligent Antenna Systems, Proc. of the 22nd Ann. Rev. of Prog. in Appl. Comp.

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Chiou, J.Y. et al.(2003), A Broad-Band CPW-Fed Strip-Loaded Square Slot Antenna, IEEE Transactions on Antennas and Propagation, Vol. 51, No. 4, April 2003, pp.719-721. Cho, Y.J. et al.(2006), A Miniature UWB Planar Monopole Antenna With 5-GHz Band-Rejection Filter and the Time-Domain Characteristics, IEEE Trans. AP. Vol.54, No. 5,

Choi, S.H. et al.(2004), A new ultra-wideband antenna for UWB applications, MOTL, V.40,

Choi, S.T. et al.(2009), Small printed CPW-fed triangular monopole antenna for ultrawideband applications, IEEE Micro & Opt. Tech. Letters, Vol.51, No.5, May

Electromagnetics ACES, March 12-16, 2006, Miami, FL; pp. 198 - 204.

20, Proc. (A82-2645, 11-32), Georgia Inst. of Technology, p.7-12.

*Military Equipment and Technologies Research Agency, Romania* 

A. Szilagyi

**Acknowledgement** 

technological supervisory bodies.

Honolulu, USA, pp.241-244.

2006, Sevastopol, Ukraine.

May 2006.pp-1453-1460.

No.5, Mar. 2004

2009,pp.180-182.

Proc Eucap 2006, Nov. Nice , France

**8. References** 


Shastry, P.N. et al.(2009), Planar UWB Conical Skirt Tapered Monopole Antenna; Proceed. of the 9th IEEE Wireless and Micr. Tech. Conf., WAMICON'09. 20-21 April 2009.

**Chapter 9** 

© 2012 Malayeri, licensee InTech. This is an open access chapter distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use,

distribution, and reproduction in any medium, provided the original work is properly cited.

© 2012 Malayeri, licensee InTech. This is a paper distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

UWB technology is advancing rapidly because of its potential to have high data rates and very low radiation power. In recent years UWB technology has been used in the areas of, sensing, radar and military communications [1]. In February 2002, the Federal Communications Commission (FCC) of the United States issued a report that UWB could be used for wireless data Communications [2]. Since then, a huge surge of research interests have occurred and this technology has been considered as one of the most reliable wireless technologies for various applications that leads to new innovations and greater quality of

Reliable wireless connection between computers, portable devices and consumer electronics in short distances and data storage and transfer between these devices are new subjects of scientific and industrial competitions which require data rates much more than now a day

In this chapter, at the second part, some advantages of ultra-wideband technology and its progress trend will be reviewed. In the third part, antennas structures and parameters, especially wideband antennas will be studied for use in the UWB systems. To describe the performance of an antenna, various parameters must be defined. There are several important and practical parameters such as frequency bandwidth, radiation pattern, directivity, gain and input impedance which will be explained briefly. The performance of a UWB antenna is required to be stable and uniform over the ultra wide operational bandwidth. In the other word, antenna radiation pattern, gain and input impedance should be stable across the entire band. Also antenna needs to be small enough to be compatible with the other UWB system elements, especially in portable devices. In addition, basic antenna parameters, such as gain and return loss, must have little variations across the

**Active Integrated Antenna** 

Additional information is available at the end of the chapter

wireless personal area network services industry.

Danial Nezhad Malayeri

http://dx.doi.org/10.5772/50185

**1. Introduction** 

accessible ones.

**Design for UWB Applications** 


European conference on wireless technology, pp.40-43, Munich, Germany, Oct.8-10, 2007.


**Chapter 9** 
