What are the wireless communication systems and what are the basic components of the wireless commun

Satellite mobile communication system, unlimited broadband access, cordless ** communication system, unlimited paging system.

The wireless communication system is generally composed of a transmitter, a receiver and its connected antennas (inclusive).FeedersGrinding and burning mold composition.

1.Transmitter

The main function of the transmitter is to modulate the carrier signal blindly and slowly to form the modulated carrier wave; The modulated carrier wave is converted into an RF carrier signal through frequency conversion (some transmitters do not go through this step) and sent to the power amplifier.

After being amplified by the power amplifier, it is sent to the sky (feed) line.

2.Antennas

Antennas are an important part of wireless communication systems. Its main function is to turn the RF carrier signal into electromagnetic waves.

Or turn electromagnetic waves into RF carrier signals. The main function of the feeder is to efficiently send the RF carrier signal output from the transmitter to the antenna. On the one hand, the loss of the feeder is required to be small; on the other hand its impedance.

It should match the output impedance of the transmitter and the output impedance of the antenna as much as possible.

3.Receiver

The main function of the radio transmitter is that the RF carrier signal received by the antenna is first amplified with low noise, and then restored to the original signal after frequency conversion (primary, secondary or even tertiary frequency conversion), intermediate frequency amplification and demodulation, and finally output after amplification by low-frequency amplifier.

It should be noted that at present, the practical wireless communication system, most of which adopt duplex mode, so the communication two sides each have a transmitter, a receiver and its connected day (feed) line, and the transceiver segment is made together (and with a duplexer.

Summary. Wireless communication is a communication method that uses space instead of wires, cables, optical fibers and other wired media to transmit electromagnetic signals. At present, the applications of wireless communication mainly include:

Radio stations, microwave communications, mobile communications, satellite communications, wireless broadband, telemetry, remote control, and communication between spacecraft and the Earth, etc. Wireless communication technology is also suitable for cordless**. Broadly speaking, television, air conditioning remote control, and radio and television also fall under the category of radio communications.

Wireless communication is a communication method that uses space instead of wires, cables, optical fibers and other wired media to transmit electromagnetic signals. At present, the applications of wireless communication mainly include: radio stations, microwave communications, mobile communications, satellite communications, wireless broadband, telemetry, remote control, and communication between spacecraft and the earth.

Wireless communication technology is also suitable for keyless ascending ropes**. Broadly speaking, television, air conditioning remote control, and radio and television also fall under the category of radio communications.

Hope it helps!

The most common wireless communication technologies are: 4G, 5G, WiFi and Bluetooth.

G and 5G technologies are currently the most commonly used mobile communication technologies. Both technologies use digital signal processing technology and OFDM technology to enable high-speed, high-quality data transmission and communication. 4G technology is mainly used in mobile**, mobile Internet, **call and other fields, while 5G technology places more emphasis on supporting emerging applications such as the Internet of Things and virtual reality.

2. WiFi technology is a wireless communication technology based on wireless LAN technology, which is mainly used to provide the function of wireless Internet access. WiFi technology uses IEEE standards to provide high-speed, stable wireless Internet access. WiFi technology has been widely used in various fields such as homes, schools, enterprises, and public places.

3. Bluetooth technology is a short-range wireless communication technology, which is usually used to connect data transmission and communication between various devices. Bluetooth technology has the characteristics of low power consumption, low cost, and low complex nuclear residue, so it has been widely used in smart homes, smart wearables, smart vehicles and other fields.

The development trend of wireless communication technology in the future:

1. The development trend of wireless communication technology in the future will be mainly reflected in higher speed data transmission. At present, 5G mobile communication technology has become the mainstream, but its speed is still not enough to meet the needs of fast data transmission in the future. Therefore, wireless communication technology will be further upgraded and improved in the future.

2. The development trend of wireless communication technology in the future will be mainly reflected in lower latency. Latency refers to the time required for information to be transmitted, which is an important indicator to consider the efficiency of a communication system. At present, 5G technology has been able to achieve millisecond-level low-latency transmission, but in the future wireless communication technology, low latency is still an important development goal.

3. The development trend of wireless communication technology in the future will be mainly reflected in more connections. In the future, wireless communication technology will support more connected devices, including people, things, and scenarios. For example, in the future, smart homes will have more smart devices that need to be networked, and at the same time, the industrial IoT beam bypass network will also need to support more device connections.