Luận Văn Design Array of Microstrip Patch Antenna

INTRODUCTION A patch antenna (also known as a rectangular microstrip antenna) is a type of radio antenna with a low profile, which can be mounted on a flat surface. It consists of a flat rectangular sheet or "patch" of metal, mounted over a larger sheet of metal called a ground plane.
Inthis orientation, the thesis is divided into threechaptersas follows:
Chapter 1: Microstrip antenna
Chapter 2: Microstrip antenna array
Chapter 3: Design and Simulation microstrip antenna





CHAPTER 1MICROSTRIP ANTENNA
1.1 MICROSTRIP ANTENNA The concept of band radiation was first initiated by Deschamps in 1953. But it was not until 20 years later, an antenna engineering applications of the new range is made. Micro-strip antenna experiments were first developed by Howell and Munson and continue research and development in many different areas.
Micro-strip antenna simplest including a very thin metal patch (thickness t <<λ[SUB]0[/SUB], λ[SUB]0[/SUB] is the wavelength in free space) ground plane placed some very small range (h <<λ[SUB]0[/SUB],in usually 0.003 λ[SUB]0[/SUB]<h <0:05 λ[SUB]0[/SUB]). Micro-strip patch antenna is designed to have the maximum radiation pattern. This is done by selecting the correct mode of the radiation field in the space beneath the patch. End-fire radiation can also be done by selecting the correct operating mode. For a rectangular patch, the length L is commonly used in approximately λ[SUB]0[/SUB] / 3 <L < λ[SUB]0[/SUB] / 2. Patch and ground plane separated by a dielectric layer as shown in Figure 1.1