Please use this identifier to cite or link to this item:
Title: Study of Circular Ring Microstrip Antennas for Wideband Applications Using Defected Ground Structures
Researcher: Sharma, Rakesh
Guide(s): Khah, Sunil Kumar
Keywords: Bandwidth
Cross-Polar radiations
Side Lobe Level
Upload Date: 28-Apr-2014
University: Jaypee University of Information Technology, Solan
Completed Date: 03/10/2013
Abstract: Microstrip antennas have been in limelight ever since their lineage in early sixties. These antennas are in great demand because of their many advantages over the conventional antennas which makes them suitable for a wide variety of applications. The microstrip antennas have features like small size, low cost, conformability and high performance over a wide spectrum of frequencies. These features make them suitable for mobile communication, satellite communication, phased arrays, Global Positioning System and radar applications. However, a major drawback of these antennas is low bandwidth. Various techniques have been proposed by researchers to enhance the bandwidth of these antennas. newlineThe research presented in this thesis principally investigates the influence of defected ground structure (DGS) on the bandwidth of microstrip antennas. The effect of DGS on the antenna gain, directivity, side lobe level and cross polar radiations is also investigated. Defected ground structure is one of the effective methods to enhance the bandwidth of microstrip antennas. Various types of DGS are introduced to enhance the bandwidth of circular patch antenna, circular ring antenna and stacked antenna respectively.
Appears in Departments:Department of Physics and Material Science

Files in This Item:
File Description SizeFormat 
01_title.pdfAttached File83.39 kBAdobe PDFView/Open
02_certificate.pdf155.83 kBAdobe PDFView/Open
03_acknowledgement.pdf182.91 kBAdobe PDFView/Open
04_contents.pdf493.83 kBAdobe PDFView/Open
05_list of tables figures.pdf795.76 kBAdobe PDFView/Open
06_chapter 1.pdf7.03 MBAdobe PDFView/Open
07_chapter 2.pdf3.3 MBAdobe PDFView/Open
08_chapter 3.pdf2.79 MBAdobe PDFView/Open
09_chapter 4.pdf2.29 MBAdobe PDFView/Open
10_chapter 5.pdf2.86 MBAdobe PDFView/Open
11_chapter 6.pdf637.07 kBAdobe PDFView/Open
12_references.pdf4.35 MBAdobe PDFView/Open
13_list of publications.pdf191.3 kBAdobe PDFView/Open
14_appendix.pdf446.51 kBAdobe PDFView/Open

Items in Shodhganga are protected by copyright, with all rights reserved, unless otherwise indicated.