The principle, internal structure and application scenario of the glue stick antenna are explained
Glue stick antenna principle
1. Overview of glue stick antenna
Glue stick antennas, also known as column antennas or omnidirectional antennas, are a common type of wireless communication antenna. It's made up of one A slender metal rod, usually placed vertically on the device. Glue stick antennas are commonly used in radio, television, and hand In a device, such as a computer, used to receive and transmit wireless signals.
The principle of the glue stick antenna is to realize the connection of a specific frequency signal by changing the length and diameter of the rod antenna Receive and transmit. The glue stick antenna is usually an omnidirectional antenna, which means that it can receive and send messages in a horizontal direction No., and has better coverage.2. Basic principle of glue stick antenna
The working principle of the glue stick antenna is closely related to the relationship between the length and frequency of the antenna. Glue is explained in detail below Basic principle of rod antenna.2.1 Influence of antenna length on frequency
There is a certain relationship between the length of the stick antenna and the frequency of receiving and transmitting. The length of the day line is equal to the signal At half the wavelength, it is best able to receive and transmit signals at that frequency. This is because of the length of the antenna At half the wavelength, the electric and magnetic fields of the signal are optimally distributed over the antenna, thus enabling the transfer of energy The most efficient delivery.2.2 Influence of antenna diameter on frequency
The diameter of the antenna also affects the frequency at which it is received and transmitted. Thicker antennas are usually suitable for lower frequencies Signals, while thinner antennas are suitable for higher frequency signals. This is because thicker antennas can capture better The electric and magnetic fields of lower frequency signals, while the thinner antenna is better able to capture the electric fields and magnetic fields of higher frequency signals The magnetic field.2.3 Influence of antenna length and diameter
The length and diameter of the antenna are related to each other to some extent. When the length of the antenna increases, phase is usually required The diameter of the antenna should be increased to maintain antenna efficiency. This is because longer antennas require a larger diameter Maintain antenna resistance and radiation efficiency.2.4 Selection of antenna materials
Glue stick antennas are usually made of metal materials, such as copper, aluminum, etc. This is because metals have good electrical conductivity, It can effectively receive and transmit electromagnetic wave signals. In addition, metal materials also have high mechanical strength and corrosion resistance Corrosion, can maintain good performance under various environmental conditions.
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