Type of antenna vibrator

  • Source: eahison
  • Date:05/10/2019

The vibrator is a component on the antenna. The full name is the antenna vibrator. It has the function of guiding and amplifying the electromagnetic wave so that the electromagnetic signal received by the antenna is stronger.

The vibrator is made of a metal that is more conductive. The vibrator has a rod shape, and some of the structures are more complicated. Generally, a plurality of vibrators is arranged in parallel on the antenna.

The radio frequency signal power output by the radio transmitter is sent to the antenna vibrator via the feeder (cable), and the antenna vibrator radiates electromagnetic waves. After the electromagnetic wave arrives at the receiving place, it is sent by the antenna vibrator to the antenna vibrator receiving the device. It can be seen that the antenna vibrator is an important radio device for transmitting and receiving electromagnetic waves, and there is no radio communication without an antenna.

There are many kinds of antenna vibrators for different frequencies, different uses, different places, different requests, and other different conditions. With regard to many types of antenna elements, it is necessary to stop proper classification:

1. Die-casting radiating oscillator

die-casting-radiating-oscillator

Integrated forming, high modularity, good dimensional stability; surface plating, good anti-aging performance; three-dimensional structure, a high degree of design freedom, easy to obtain superior electrical performance indicators; sample processing is difficult, large investment; long design cycle, high mold cost.

2. PCB printed radiation vibrator

pcb-printed-radiation-vibrator

PCB board and structural parts are assembled; PCB needs to be coated to enhance oxidation resistance; 2D semi-structure, limited overall design freedom, high PCB line processing precision; convenient sample processing, small input; short design cycle, low mold cost High-quality sheet costs are high.

The relative positional accuracy of PCB board and structural support assembly; substrate quality, dielectric constant stability; overall structural stability of the radiating element.

The relative positional accuracy of PCB board and structural support assembly; substrate quality, dielectric constant stability; overall structural stability of the radiating element.

3. Sheet metal radiation vibrator

sheet-metal-radiation-vibrator

The assembly of multiple parts, the overall dimensional accuracy of the vibrator is difficult to control; the surface treatment method is selected according to the material; Two-dimensional semi-structure, limited overall design freedom, high processing precision; small sample processing investment; longer design cycle, higher mold cost, more continuous sheet metal mold

Dimensional accuracy and relative positional accuracy of each component of the radiating element; quality and strength of the sheet; surface treatment quality.

4. Patch radiation vibrator

patch-radiation-vibrator

Multiple parts are assembled, mainly maintaining the overall dimensional accuracy and structural stability of the vibrator through plastic parts; aluminum is used, surface pickling, conductive oxidation, and passivation treatment; two-dimensional structure, low design freedom, limited bandwidth; sample Convenient processing, small investment; short design cycle, low mold cost.

Dimensional accuracy, structural strength and anti-aging properties of plastic parts; feeding mode and relative positional accuracy of feeder and vibrator.

According to the classification of use, it can be divided into communication antenna, TV antenna, radar antenna, etc.

According to the working frequency band, it can be divided into a multi-wave antenna, ultra-short wave antenna, microwave antenna, etc.

According to directionality, can be divided into omni directional antennas, directional antennas, etc.

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