Full range of Antennas manufacturer in China
FBELE is specialized in the design, production and sales of UHF modules and UHF handheld antennas, including customized design of UHF handheld antennas. It provides handheld UHF antennas, UHF modules, UHF ceramic antennas, UHF PCB antennas and UHF directional antennas
- TOP 10 brand of Industrial Router (FBELE)
- High stability
- Very good electroplating
- Customization acceptable
What is Antenna
Antenna is a kind of converter, which transforms the guided wave propagating on the transmission line into the electromagnetic wave propagating in the unbounded medium (usually free space), or vice versa. In radio equipment, a component used to transmit or receive electromagnetic waves. Engineering systems such as radio communication, broadcasting, television, radar, navigation, electronic countermeasures, remote sensing, radio astronomy, etc., which use electromagnetic waves to transmit information, rely on antennas for work. In addition, in terms of transmitting energy with electromagnetic waves, non signal energy radiation also requires antennas. General antennas are reversible, that is, the same pair of antennas can be used as both transmitting and receiving antennas. The basic characteristic parameters of the same antenna as transmitting or receiving are the same. This is the reciprocity theorem of antennas.
Why Purchase Antenna
The workmanship of high-quality antennas is very fine. Most of them are made of copper or aluminum alloy
It is very convenient to assemble and disassemble, and it is also very convenient to connect with the feeder
The length of each unit is very accurate, and the channel is wide, which is suitable for receiving multiple TV channels
The electroplating of indoor wires is bright and solid, and the base is stable and reliable.
Function of Antenna
As we know, communication, radar, navigation, radio, television and other radio equipment all transmit information through radio waves. They all need radio wave radiation and reception. In radio equipment, devices used to radiate and receive radio waves are called antennas. An antenna provides the required coupling between a transmitter or receiver and a medium that transmits radio waves. Antenna, like transmitter and receiver, is also an important part of radio equipment.
What the antenna radiates is radio wave, and what it receives is also radio wave. However, what the transmitter sends to the antenna through the feeder line is not radio wave, and the receiving antenna cannot send the radio wave directly to the receiver through the feeder line, which must go through the process of energy conversion. Let’s take the radio communication equipment as an example to analyze the signal transmission process, and then explain the energy conversion function of the antenna.
At the transmitting end, the modulated high-frequency oscillation current (energy) generated by the transmitter is input into the transmitting antenna through the feeding equipment (the feeding equipment can directly transmit current wave or electromagnetic wave depending on the frequency and form), and the transmitting antenna converts the high-frequency current or guided wave (energy) into radio wave – free electromagnetic wave (energy) radiates to the surrounding space (see Figure 1); At the receiving end, the radio wave (energy) is converted into high-frequency current or guided wave (energy) through the receiving antenna and transmitted to the receiver through the feeding equipment. From the above process, it can be seen that the antenna is not only a device for radiating and receiving radio waves, but also an energy converter and an interface device between circuit and space.
Classification of Antennas
- According to the nature of work, it can be divided into transmitting antenna and receiving antenna.
- It can be divided into communication antenna, radio antenna, television antenna, radar antenna, etc. according to its purpose.
- According to directivity, it can be divided into omnidirectional antenna and directional antenna.
- According to the working wavelength, it can be divided into ultra long wave antenna, long wave antenna, medium wave antenna, short wave antenna, ultra short wave antenna, microwave antenna, etc.
- According to the structure and working principle, it can be divided into line antenna and area antenna. The characteristic parameters describing the antenna include pattern, directivity coefficient, gain, input impedance, radiation efficiency, polarization and bandwidth.
- According to the dimension, it can be divided into two types: one-dimensional antenna and two-dimensional antenna
One dimensional antenna: it is composed of many wires. These wires are either like straight lines used in mobile phones or smart shapes, like the old rabbit ears used on TV before the emergence of cables. Monopole and bipolar antennas are two basic one-dimensional antennas.
Two dimensional antenna: varied, including sheet (a square piece of metal), array (a bundle of organized two-dimensional patterns), horn and dish.
- Antennas can be divided into three categories according to different applications: Handheld station antenna, vehicle antenna and base antenna.
Handheld antenna: it refers to the antenna for personal use of handheld walkie talkie. There are two common types: rubber antenna and rod antenna.
On board antenna: refers to the communication antenna originally designed and installed on the vehicle. The most common application is the sucker antenna. On the structure of the vehicle antenna, there are also shortened type, quarter wavelength, central plus type, five eighth wavelength, double half wavelength and other forms of antenna.
Base station antenna: it plays a key role in the whole communication system, especially the communication station as the communication hub. Common base station antennas include FRP high gain antenna, four loop array antenna (eight loop array antenna) and directional antenna.
China Leading Antennas Supplier
FBELE is a professional satellite communication and data transmission manufacturer, focusing on the research and development of high-precision GPS satellite positioning and data transmission radio. It is a leader in the field of high-precision antenna, RTK antenna, GNSS antenna, GPS antenna, Beidou antenna and data transmission radio
FBELE products: engineering indoor and outdoor antenna / full band antenna /5g antenna /lte/4g antenna /gsm/cdma/3g antenna /wifi 2.4G antenna / digital TV antenna /433/315mhz antenna /gps antenna / built-in antenna / RF cable, etc
FBELE is antenna manufacturers specialize in the production of various built-in and external antennas for WiFi, satellite, automobile, television, charging pile and other fields. The wholesale prices of ISO certified supplier manufacturers. FBELE has 25 years of production experience, 1 year of quality assurance, free samples and customized products.
What does customer say about FBELE Company
In 2019, I contacted FBELE through my friend’s introduction. My friend has cooperated with FBELE for 10 years, and the cooperation is very happy, and then recommended it to me We bought fbele products. At present, we are very satisfied with the quality and delivery date. I will also recommend them to my friends.
Our company has just started to import Chinese products from this year and is not very familiar with customs declaration and transportation. FBELE has taken the trouble to help us handle the import, which has solved our worries at home. Very very very good service.