● In use, the sucker antenna is designed according to the environment of the car, ......

● In actual use, we often find that the coverage of wireless signals is not as goo......

● Explanation: an end-fire array consisting of an excited unit, a reflection unit ......

● With the extensive and in-depth application of enterprise information and the co......

● With the development of the communication industry, all kinds of communication d......

● The communication antenna has been used outdoors for a long time, and sometimes ......