International Research Journal of Engineering and Technology (IRJET)
e-ISSN: 2395-0056
Volume: 11 Issue: 03 | Mar 2024
p-ISSN: 2395-0072
www.irjet.net
Circular microstrip patch antenna for wlan applications CH.V.S Murthy1, K.Sri Hari Rao2, S .kalyani3 , P .Samba Siva Rao4, P. Adithya5, S Siva Nagi Reddy6 1 Associate professor, Department of Electronics and Communication Engineering, Nri institute of technology,
Perechala, Andhra Pradesh ,India
2 Associate professor, Department of Electronics and Communication Engineering, Nri institute of technology,
Perechala, Andhra Pradesh, India Department of Electronics and Communication Engineering, Nri institute of technology, Perechala, Andhra Pradesh, India ---------------------------------------------------------------------***--------------------------------------------------------------------3 UG Students,
Abstract - The design of a small circular micro strip
Microstrip antennas have a variety of applications, especially in the areas of military, satellite, mobile, and medical communications. Their applications have grown as a result of their small size and low weight. Fast and lowcost fabrication is essential for antenna prototype for performance evaluation.
patch antenna covering the 5.7 to 6.15 GHz frequency is presented in this work for WLAN applications. The antenna is constructed using a micro strip line feed and a 1.4 mm thick FR-4 (lossy) substrate with a relative permittivity of 4.4. The circular patch is chosen radius is 8 mm. In order to optimize the size and performance of the suggested antenna, a slot measuring 19 mm x 19 mm is etched onto the ground plane. By Using CST Microsoft Studio Simulation Software, the antenna is designed. Many antenna properties are studied, including radiation efficiency, directivity, antenna gain, percentage bandwidth, return loss, and radiation pattern. We have designed a circular micro strip patch antenna that operates at a frequency of 5.8GHz in this paper. The patch antenna is designed on a FR4 (Flame Retardant 4) substrate, which has a height of 1.6mm and a dielectric constant of εr= 4.4 & Copper material is used in patch and ground design.
1.1 Types of Antennas 1.1.1 Dipole Antenna The end of a transmission line that radiates energy through a bent wire like this is called a dipole, or dipole antenna. The reactance of the input impedance is determined by the dipole's length and radius. The amplitude of the reactance rises as the radius decreases. It corresponds to the wavelength. Thus, the length and radius of the dipole also need to be considered. Usually, it has an impedance of 72Ω.
Key Words: Antenna, Rectangular shape, Hfss, Micro strip antenna, CST.
1.INTRODUCTION Electric power is converted into electromagnetic waves, often called radio waves, using an electrical device called an antenna, sometimes called an aerial. An antenna receives a signal from a coaxial cable or other transmission line or guiding device, which produces a guided wave. The signal is converted by the antenna into electromagnetic energy, which allows it to travel across open space. Microstrip antennas with radiating patches might be square, rectangular, circular, triangular, elliptical, and more in form. Because of their simplicity in design and performance analysis, patch antennas with rectangular, circular, and square forms are used more commonly among them. With only one changeable degree of freedom (radius), circular patch antennas are simpler to build and offer readily tunable radiation. Furthermore, the circular patch antenna is 16% smaller than the rectangular patch antennas at the same design frequency.
© 2024, IRJET
|
Impact Factor value: 8.226
Fig-1: Dipole Antenna
1.1.2 Horn Antennas The Horn Antenna, which affects the transition between transmission line and wave traveling in free space, is one of the most often used antennas. It functions as a waveguide's organic extension.
|
ISO 9001:2008 Certified Journal
|
Page 1144