Multilayer Antenna with Metamaterial and Arbitrary Substrate

Abstract

This paper presents a study and development of equations consisting metamate- rials of negative refraction index. The equations developed for this structure are based in full wave Transverse Transmission Line (TTL) method. This method possibility a signiflcant alge- braic simpliflcation of the equations involved in the process. In order to analyze this structure the complex resonant frequency were determined. The results obtained for this application are presented. Microstrip antennas are widely used due to its various advantages such as reducing size, weight, and cost and in addition because it interfaces easily with other microwave circuits, compatibility with integrated hybrid circuits and the possibility of acting with dual frequency (1). They can be used in several systems, such as: radars, wireless, mobile telephony and communication by satellites. This paper presents an application of multilayer antenna with metamaterial. The analysis is made using the concise full wave TTL method. However, most of the designs are still in the stage of theory and there is a big challenge to integrate antennas with dielectric multilayer has advantages, such as, the ∞exibility in the operation frequency band and a smaller physical size. The TTL | Transverse Transmission Line method is used in the determination of the electro- magnetic fleld components in the Fourier transform domain (FTD), for the three regions of the structures shown in the Fig. 1. The moment method is applied and adequate basis functions are used to expand the current densities in the metallic strip.