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Three-frequency-point amplifier

An amplifier and three-frequency point technology, which is applied in the field of three-frequency point amplifiers, can solve the problems of low equipment utilization and high equipment cost, and achieve the effect of split-wave restoration processing

Pending Publication Date: 2022-02-18
CHANGZHOU INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, satellite navigation systems in the prior art often use three frequency bands to transmit and receive signals. For example, existing satellite navigation systems can transmit signals in three frequency bands: UHF (150MHz), VHF (400MHz) and L-band (1066.66MHz). Due to the use of many frequency bands and the reception and processing of different signals, the current existing signal processing technology needs to use different processing equipment, the equipment utilization rate is low, and the equipment cost is high

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0019] The block diagram of the three-point frequency amplifier is shown in figure 1 , it consists of two parts, an outdoor unit and an indoor unit, and the two units are connected by a cable about 50 meters long. Its input frequency: 150MHz, 400MHz, 1066.67MHz; noise figure (NF): 0.7 (150MHz), 0.7dB (400MHz) and 0.8dB (1066.67MHz); Point suppression is better than 25dB, in-band; gain fluctuation is less than 1dB. Input impedance of outdoor unit: 50 ohms; input VSWR: 1.5; input socket: SMA-K; input power: >-120dBm; each channel gain >45dB, each channel is designed with a band-pass filter, the filter bandwidth is about 5 %; output socket: N-K

[0020] Gain of indoor unit: about 15dB; input so...

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Abstract

The invention relates to an amplifier, in particular to a three-frequency-point amplifier. The three-frequency-point amplifier comprises an amplifier outdoor unit and an amplifier indoor unit which are connected through a cable. The amplifier outdoor unit comprises an LNA module and a combiner module, the LNA module comprises three inputs and three outputs, the total gain of the amplifier outdoor unit is 50-55dB, the amplifier indoor unit comprises three paths of signals, and the isolation degree between the paths of signals is greater than 20dB; the invention can effectively amplify and filter three-frequency-point signals outdoors and then carry out wave combination processing, and can effectively realize partial wave recovery processing indoors.

Description

technical field [0001] The invention relates to an amplifier, in particular to a three-frequency point amplifier. Background technique [0002] At present, satellite navigation systems in the prior art often use three frequency bands to transmit and receive signals. For example, existing satellite navigation systems can transmit signals in three frequency bands: UHF (150MHz), VHF (400MHz) and L-band (1066.66MHz). Due to the use of many frequency bands and the reception and processing of different signals, the current existing signal processing technology needs to use different processing equipment, the equipment utilization rate is low, and the equipment cost is high. Contents of the invention [0003] In order to solve this problem, the present invention proposes a three-frequency point amplifier to solve the technical problems raised by the background art. [0004] In order to solve the above technical problems, the technical solution adopted in the present invention is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03F1/26H03F3/195
CPCH03F1/26H03F3/195H03F2200/451H03F2200/294H03F2200/111
Inventor 王伟华何中胜时翔
Owner CHANGZHOU INST OF TECH