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Method for simplifying radio-frequency front-head and apparatus

A radio frequency front-end, radio frequency technology, applied in the field of communication, can solve the problem of bulky and other problems, achieve the effect of simplifying the volume, improving reliability and competitiveness

Active Publication Date: 2007-06-13
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the volume and weight of this cavity filter occupy a considerable proportion in the internal modules of the device, especially in the lower communication frequency bands (such as GSM900, CDMA850), the volume is even larger

Method used

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  • Method for simplifying radio-frequency front-head and apparatus
  • Method for simplifying radio-frequency front-head and apparatus
  • Method for simplifying radio-frequency front-head and apparatus

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Experimental program
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Embodiment Construction

[0031] As can be seen from the background technology, the following technical defects generally exist in the radio frequency front end of the mobile communication outdoor equipment in the prior art:

[0032] 1. Huge volume;

[0033] 2. Heavy weight;

[0034] 3. Poor reliability;

[0035] 4. High production cost;

[0036] 5. Low competitiveness.

[0037] The fundamental reason for the existence of these technical defects is that the radio frequency front ends of these outdoor devices all contain radio frequency cavity filters. This kind of filter can meet the overall power capacity and transceiver isolation requirements of outdoor equipment, but the volume and weight of this kind of filter occupy a considerable proportion in the internal modules of the entire outdoor equipment, especially in the lower communication frequency band. more massive.

[0038] Aiming at the shortcomings of the prior art, the present invention provides a design method of the radio frequency front-...

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Abstract

The invention reduces number of resonant cavity on structure of receiving filter and transmitting filter at front end of radio frequency in current mobile communication outdoor equipment in order to reach purposes of reducing volume and weight of entire front end of radio frequency. Adding technique type filters and amplifiers in low noise solves issue of reduced filtering effects of filters after modification. Comparing with prior art, the invention solves issues of large volume of outdoor equipment, and high manufacturing cost, but reaches filtering effect close to effect of equipment before modification.

Description

technical field [0001] The invention relates to the communication field, in particular to a simplified method and device for a radio frequency front end. Background technique [0002] In the field of mobile communication, in order to avoid the construction of equipment rooms, operators have adopted a large number of outdoor base stations, radio frequency remote modules, repeaters and other equipment. On the one hand, for the convenience of installation and maintenance, there are strict requirements on the volume and weight of these outdoor equipment; on the other hand, in the case of fixed volume, in order to ensure reliability, there must be enough space inside the equipment for equipment Reliability design, such as heat dissipation, etc. As shown in Figure 1, it is a system structure diagram of the radio frequency cavity filter in the prior art to realize filtering. It can be seen in this figure that the signal needs to pass through the radio frequency cavity filter befor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B1/38H04Q7/30
CPCH04B1/38
Inventor 陈小红蒲涛
Owner HUAWEI TECH CO LTD