New Researches in Electronic Defense Systems

New Researches in Electronic Defense Systems

Design and Fabrication of an Antenna with Defected Ground Structure in the Frequency Range of 3.1 to 10.6 GHz for Ultra-Wideband Jammers"

Document Type : Original Article

Authors
Behnam dorostkar 1
ahmad dolatkhah 1
gohar varamini 2
1 assistant professor, department of information and Communication, Amin Police University, Tehran, Iran
2 Associate Prof departement of electical engineering,Beyza Branch, Islamic Azad University ,Beyza,Iran
10.22034/joeds.2025.499877.1079
Abstract
With the increasing development of wireless technologies and the increasing demand for wide bandwidth in communication and military systems, the design of compact, efficient, and versatile antennas for ultra-wideband (UWB) applications has gained significant importance. In this paper, an innovative antenna for the frequency band of 1.3 to 10.6 GHz is designed and fabricated. This antenna is designed using a defective ground structure (DGS) and coplanar waveguide (CPW) transmission lines on a small FR4 substrate with dimensions of 26.6 × 29.3 × 1.6 mm. The proposed antenna is unidirectional with high gain, has a peak gain of 4 dBi, and the simulation results show that its VSWR value is lower than the standard value at most points of the bandwidth, which indicates the impedance matching of the antenna. The results of the antenna fabrication and simulation indicate its optimal performance in fields such as high-speed wireless communications, surveillance radars, and reconnaissance systems. Among the prominent applications of this antenna is its use in ultra-wideband jamming systems in the field of electronic warfare. The compact design, high gain, and wide bandwidth make the proposed antenna an ideal solution for advanced military and communication technologies that can effectively meet the modern needs of these fields.
Keywords
Antenna
Ultra-Wideband (UWB)
Microstrip
Defected Ground Structure (DGS)
Jammer
New Researches in Electronic Defense Systems
Volume 3, Issue 9
Winter 2025
Pages 23-29