𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Design of the tree-shaped UWB antenna using fractal concept

✍ Scribed by Jong K. Park; Hee S. An; Jung N. Lee

Publisher
John Wiley and Sons
Year
2007
Tongue
English
Weight
1014 KB
Volume
50
Category
Article
ISSN
0895-2477

No coin nor oath required. For personal study only.

✦ Synopsis

Abstract

In this article, we have proposed a novel tree‐shaped ultra‐wideband antenna for UWB applications. We have used the partial ground plane technique and the fractal concept to achieve an ultra‐wideband impedance matching. It is found that as the number of iteration increases, the lower‐edge of the impedance bandwidth is moved to the low frequency and the level of the impedance matching over the operating frequency band (3.1–4.8 GHz) is improved. Prototypes of the proposed antennas have been successfully implemented and good radiation characteristics in the operating frequency bands have been achieved. The effect of the angle between upper and lower trapezoids on the return loss was also studied. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 144–150, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23010

📜 SIMILAR VOLUMES

Design of modified ground square-shaped
Design of modified ground square-shaped fractal antenna for UWB applications
✍ Raj Kumar; Shahadev Hake 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 682 KB

## Abstract This article presents the design of modified ground square‐shaped fractal antenna. The prototype antenna is designed and fabricated on FR4 substrate of dielectric constant ε~r~ = 4.3 and thickness h = 1.53 mm. The proposed antenna is excited using coplanar waveguide feed. The experiment

On the design of wheel-shaped fractal an
On the design of wheel-shaped fractal antenna
✍ Raj Kumar; P. Malathi; K. Sawant 📂 Article 📅 2010 🏛 John Wiley and Sons 🌐 English ⚖ 675 KB

## Abstract This article presents the design of a wheel‐shaped wide band fractal antenna. This fractal antenna has been designed on substrate ε~r~ = 4.3 and thickness __h__ = 1.53 mm. The new antenna has been fed with coplanar waveguide‐fed. The antenna exhibits the excellent ultrawide bandwidth fr

Design of the band-rejected UWB antenna
Design of the band-rejected UWB antenna with the ring-shaped parasitic patch
✍ Ki-Hak Kim; Seong-Ook Park 📂 Article 📅 2006 🏛 John Wiley and Sons 🌐 English ⚖ 217 KB 👁 1 views

## Abstract A novel UWB antenna with band‐elimination characteristic is presented. The proposed antenna is fed by microstrip line and consists of an inversed bell‐shape radiation patch, rounded ground, and a ring‐shaped parasitic patch. The proposed antenna utilizes a ring‐shape parasitic patch to

Design of single-shaped reflector antenn
Design of single-shaped reflector antennas for the synthesis of shaped contour beams using genetic algorithms
✍ Mercè Vall-llossera; Juan M. Rius; Nuria Duffo; Angel Cardama 📂 Article 📅 2000 🏛 John Wiley and Sons 🌐 English ⚖ 173 KB 👁 2 views

A genetic algorithm GA has been de¨eloped for designing single-shaped reflector antennas for the synthesis of shaped contour beams. The graphical processing technique is used in order to obtain the antenna radiation patterns ¨ery efficiently. Results comparing with the classical conjugate gradient a