Why The Antenna Has A Variety Of Different Shapes

- Dec 20 2017 - According to the nature of the work, it can be divided into the transmitting antenna and the receiving antenna. (2) it can be divided into communication antenna, broadcast antenna, TV antenna, radar antenna and so on. It can be divided into ultra long wave antenna, long wave antenna, medium wave antenna, short wave antenna, ultrashort wave antenna and microwave antenna according to the working wavelength. Microwave antenna
4. According to the structure form and working principle, it can be divided into line antenna and surface antenna. Describe the characteristic parameters of antenna direction chart, directivity, gain, input impedance, radiation efficiency, bandwidth and antenna polarization by dimension points can be divided into two types: one-dimensional and two-dimensional antenna antenna antenna consists of a number of wires, the wires or a line used on the mobile phone, or some neat shape. Is cable used on the TV before the old rabbit ears. The monopole and two-stage antenna are the two most basic one-dimensional antennas. Two dimensional antennas are varied, including flaky (a square metal), array (well organized two-dimensional pattern), and trumpet shaped, dish like. The antenna can be divided into three categories: the handset antenna, the vehicle antenna and the base antenna. The handheld antenna is an antenna for personal use of a handheld interphone. There are two common types of rubber antenna and pull rod antenna. The vehicle antenna is the original design and installation of the communication antenna on the vehicle, the most common application of the most common is to absorb the appearance of the image (20) disk antenna. The vehicle antenna structure also has a shorter wavelength, antenna type, 1/4 type, 5/8 loading central wavelength and dual wavelength form 1/2. The base station antenna plays a very important role in the whole communication system, especially the communication station as a communication hub. The common base station antenna has high gain antenna of FRP, four ring array antenna (eight ring antenna) and directional antenna.