Tower mounted amplifier

A technology of tower-mounted amplifiers and low-noise amplifiers, applied in radio relay systems, active electrical relay systems, electrical components, etc., can solve the inconvenience of tower-mounted amplifiers and achieve weight reduction, volume reduction, and low loss Effect

Inactive Publication Date: 2011-11-02
MOBILE ANTENNA TECH SHENZHEN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In summary, there are obviously inconveniences and defects in the actual use of existing tower mount amplifiers, so it is necessary to improve

Method used

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Embodiment Construction

[0015] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0016] Such as figure 2 As shown, a tower mount amplifier 100 of the present invention is applied to a communication system with simultaneous communication in at least two frequency bands, which includes a signal receiving unit 10 and a signal transmitting unit 20 connected in parallel. The signal receiving unit 10 includes a first band-pass filter 11 for gating a received signal, a low-noise amplifier (LNA, Low-Noise Amplifier) ​​12 and a second band-pass filter 13 . The first band-pass filter 11, the low-noise amplifier 12, and the second band-pass filter 13 are connected in this order. The lo...

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Abstract

The invention discloses a tower mounted amplifier which comprises a signal receiving unit and a signal transmission unit, wherein the signal receiving unit is in parallel with the signal transmission unit. The signal receiving unit comprises: a first band pass filter which is used for gating a received signal; a low noise amplifier which is used for amplifying the received signal; a second band pass filter which is used for protecting the low noise amplifier. The first band pass filter is successively connected with the low noise amplifier and the second band pass filter. The signal transmission unit is a band-stop filter which is used for gating a transmitted signal. In the invention, by using one band-stop filter and two band pass filters, the tower mounted amplifier with low loss, low noise and high inhibition can be realized. Simultaneously, a function of the two band pass filters arranged in the signal transmission unit of the traditional tower mounted amplifier can be realized by the one band-stop filter. Volume is minimized, weight is lightened and costs are reduced. Installation of the tower mounted amplifier is convenient.

Description

technical field [0001] The invention relates to the field of communication equipment, in particular to a tower top amplifier. Background technique [0002] With the rapid development of wireless communication technology, various radio frequency devices are used more and more widely, among which the tower mounted amplifier has received more and more attention as a key module. In particular, low-loss, low-noise, and high-suppression tower-mounted amplifiers have become the focus of research in the field of radio frequency. To realize a high-performance tower-mounted amplifier, it is necessary to increase the volume and increase the cost accordingly. [0003] The traditional tower-mounted amplifier is realized by a duplexer and a low-noise amplifier. The block diagram is as follows: figure 1 shown. Among them, the duplexer is mainly realized by two or more bandpass filters. Since each band-pass filter can only realize the gating and high rejection of a single frequency band...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/40H04W88/08H04B7/15
Inventor 刘宁顾国治韩奎赵国帅
Owner MOBILE ANTENNA TECH SHENZHEN
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