NDLI: High-directivity fractal-vee dipoles

Content Provider	IEEE Xplore Digital Library
Author	Jonsson, P. Siden, J. Olsson, T. Gang Wang
Copyright Year	2002
Description	Author affiliation: Mid Sweden Univ., Sundsvall, Sweden (Jonsson, P.; Siden, J.; Olsson, T.; Gang Wang)
Abstract	Shaping of linear dipoles is a technique to achieve higher directivity. If the arms of a dipole are tilted to make a vee dipole, higher directivity and lower side lobes can be achieved (see Thiele, G.A. and Ekelman, E.P., 1980). Another way of shaping dipoles for higher directivity is by using a piecewise parabolic approximation (see Cheng, D.K. and Liang, C.H., 1982). By also letting the two arms in a dipole antenna configuration be fractal elements based on the Minkowski motif, higher directivity can be achieved (see Cohen, N., 1996). A variation of the vee dipole, referred to as the double-vee dipole, has higher directivity, lower side lobes and less back radiation than the conventional vee dipole (see Patwari, N. and Safaai-Jazi, A., 2000). We present an optimization search of a vee antenna based upon the Koch fractal curve. This design optimization search is described and the numerical results are presented. It is shown that by replacing the arms of the ordinary vee dipole with the Koch fractal curve, higher directivity can be obtained. It is also shown that by increasing the number of fractal iterations, smaller antennas with significantly higher directivity compared to the conventional vee dipole can be achieved.
Starting Page	558
Ending Page	561
File Size	219152
Page Count	4
File Format	PDF
ISBN	0780373308
DOI	10.1109/APS.2002.1017046
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2002-06-16
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Fractals Arm Dipole antennas Design optimization Wire Feeds Numerical simulation Moment methods Impedance
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Combined Fractal Dipole Wire Antenna

Fractal multiband antennas using GA/MOM optimized log periodic dipole arrays

Numerical Simulation of Irregular-Fractal based Antennas

Study on fractal dipole using moment method

A novel HF fishbone antenna with vee-element

High gain fractal-based Yagi antenna

Predictions and measurements of double-vee dipoles

YAGI-UDA arrays of shaped dipoles for increased directivity

A T-network design for wideband impedance matching of a resistively loaded vee dipole

High-directivity fractal-vee dipoles

Similar Documents

Combined Fractal Dipole Wire Antenna

Fractal multiband antennas using GA/MOM optimized log periodic dipole arrays

Numerical Simulation of Irregular-Fractal based Antennas

Study on fractal dipole using moment method

A novel HF fishbone antenna with vee-element

High gain fractal-based Yagi antenna

Predictions and measurements of double-vee dipoles

YAGI-UDA arrays of shaped dipoles for increased directivity

A T-network design for wideband impedance matching of a resistively loaded vee dipole

High-directivity fractal-vee dipoles