![]() The polarization is linear, and the basic antenna structure is shown in Figure 1: Figure 1. The first formulas was formulated in 1986, in which simple TSA without a substrate was inspected and later on more productive methods were gradually introduced. There is provided a directional, wideband, planar antenna arrangement. It has been used in various research and technological fields. Printed circuit technology makes this type antenna cost effective at microwave frequencies exceeding 1 GHz.Īdvantages of Vivaldi antennas are their broadband characteristics (suitable for ultra-wideband signals ), their easy manufacturing process using common methods for PCB production, and their easy impedance matching to the feeding line using microstrip line modeling methods. Vivaldi antennas are simple planar antennas that are very broadband. Vivaldi antenna is light weight, small size planar antenna. Here, an exponential function is used for the taper profile. Vivaldi antennas are useful for any frequency, as all antennas are scalable in size for use at any frequency. A tapered slot antenna, also known as a Vivaldi antenna, is useful for wide band applications. If fed with 90-degree phase-shifted signals, orthogonal devices can transmit/receive circular-oriented electromagnetic waves. Vivaldi antennas can be made for linear polarized waves or – using two devices arranged in orthogonal direction – for transmitting / receiving both polarization orientations. From the circular resonant area the energy reaches an exponential pattern via a symmetrical slot line. The feeding line excites a circular space via a microstrip line, terminated with a sector-shaped area. This paper will discuss the design of a vivaldi microstrip antenna which has a wide bandwidth with directional radiation pattern works on 3.1 to 10.7 GHz and.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |