Vehicle-mounted short-wave communication antenna

Abstract

The invention provides a vehicle-mounted short-wave communication antenna. The vehicle-mounted short-wave communication antenna comprises a half-ring whip, a loading network, a terminal loading resistor, an antenna adjustment system, a cable and a baffle board. The half-ring whip is composed of a first whip arm and a second whip arm, the first end of the first whip arm and the first end of the second whip arm are connected to the two ends of the loading network respectively, and the loading network is located on the top of the half-ring whip and used for improving current distribution on the half-ring whip. The terminal loading resistor is connected between the second end of the second whip arm and the baffle board to further improve current distribution on the half-ring whip. The antenna adjustment system is installed on the baffle board and used for coordinating the relation between the output end of the feed cable and the input end of the half-ring whip, the input end of the antenna adjustment system is connected with the output end of the cable, and the output end of the antenna adjustment system is connected with the second end of the first whip arm. The vehicle-mounted short-wave communication antenna is small in size and convenient to carry, and solves the problem of a short-wave communication dead zone in a vertical incidence skywave propagation communication mode at the same time.

Description

technical field [0001] The invention relates to the technical field of antennas, in particular to a vehicle-mounted short-wave communication antenna. Background technique [0002] With the rapid development of science and technology, society has entered the information age, and the rapid and extensive transmission of information has formed the most important feature of the information society. Various wireless transmission methods represented by modern wireless communication, satellite communication, ship communication and radar information have put forward higher and higher requirements for the application of electronic technology. With the rise of voice services, narrowband and broadband data services, satellite broadcasting, and satellite positioning in wireless communications, the market demand for mobile communications products is increasing. Only those wireless communications products that are small in size, easy to carry, high in sensitivity and high in stability can ...

AI Technical Summary

Problems solved by technology

[0004] Based on the technical problems raised by the background technology, the present invention proposes a vehicle-mounted short-wave communication antenna, which is small in size and easy to carry. At the same time, the problem of blind spots in short-wave communication is solved by using the near vertical incidence sky wave communication method.

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