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Four-frequency-range antenna device of high-speed train of motor train unit

A high-speed EMU, four-band technology, applied to devices that enable antennas to work in different bands at the same time, antennas, antennas suitable for movable objects, etc., can solve the problems of affecting the appearance of the car body and increasing the wind resistance of the train, and achieve Improve aesthetics, reduce the number of antennas installed, and reduce costs

Active Publication Date: 2013-09-18
CRSC COMM & INFORMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the antennas used in the train wireless communication system (GSM-R, etc.) are independent from the GPS antenna. In order to be installed on the top of the train, each antenna is installed separately, which increases the wind resistance when the train is moving and affects the appearance of the car body.

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  • Four-frequency-range antenna device of high-speed train of motor train unit
  • Four-frequency-range antenna device of high-speed train of motor train unit
  • Four-frequency-range antenna device of high-speed train of motor train unit

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Embodiment

[0019] Such as figure 1 As shown, the present invention enables each system on the train to share one antenna, reducing the number of antennas installed on the roof of the train. The four-band antenna device for high-speed EMU trains includes an antenna 1, a four-band combiner 2, and a feeder 8. The four-band combiner is provided with an input port and four output ports. The antenna passes through the feeder 8 is connected with the input port of the four-band divider combiner 2.

[0020] Such as figure 2 As shown, the antenna 1 includes a radome 11, an 802.11n frequency band sub-antenna 12, a GPS frequency band sub-antenna 13, a GSM-R frequency band sub-antenna 14, an HRC frequency band sub-antenna 15, and an antenna signal connecting hard cable 16. 802.11n frequency band sub-antenna 12, GPS frequency band sub-antenna 13, GSM-R frequency band sub-antenna 14, HRC frequency band sub-antenna 15, antenna signal connection hard cable 16 are arranged in the radome 11, described, ...

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Abstract

The invention relates to a four-frequency-range antenna device of a high-speed train of a motor train unit. The four-frequency-range antenna device comprises an antenna, a four-frequency-range shunt / combiner and a feeder line, wherein the four-frequency-range shunt / combiner comprises an input port and four output ports, and the antenna is connected with the input port of the four-frequency-range shunt / combiner through the feeder line. Compared with the prior art, the four-frequency-range antenna device has the advantages of reducing the cost, improving the aesthetic degree of the train and the like.

Description

technical field [0001] The invention relates to an antenna device, in particular to a four-band antenna device for a high-speed train. Background technique [0002] An antenna (antenna) is a transformer that converts a guided wave propagating on a transmission line into an electromagnetic wave propagating in an unbounded medium (usually free space), or vice versa. A component used in radio equipment to transmit or receive electromagnetic waves. Engineering systems such as radio communication, broadcasting, television, radar, navigation, electronic countermeasures, remote sensing, and radio astronomy, which use electromagnetic waves to transmit information, rely on antennas to work. In addition, in terms of transmitting energy with electromagnetic waves, non-signal energy radiation also requires antennas. Generally, antennas are reversible, that is, the same antenna can be used as both a transmitting antenna and a receiving antenna. The basic characteristic parameters of t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/32H01Q5/00
Inventor 郝俊
Owner CRSC COMM & INFORMATION