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AGC and ALC high-gain active circuit components with uplink and downlink synchronous control functions

A technology of active circuit and control function, which is applied in the direction of electrical components, gain control, amplification control, etc., and can solve problems such as intermodulation difference, low gain of AGC and ALC circuits, and large noise

Active Publication Date: 2017-07-14
庄昆杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the process of realizing the present invention, the inventors found that there are at least the following problems in the prior art: the existing AGC and ALC circuits have low gain, large volume, poor intermodulation, large noise, large time delay, and small attenuation of uplink and downlink synchronization control. complex circuit

Method used

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  • AGC and ALC high-gain active circuit components with uplink and downlink synchronous control functions
  • AGC and ALC high-gain active circuit components with uplink and downlink synchronous control functions
  • AGC and ALC high-gain active circuit components with uplink and downlink synchronous control functions

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Embodiment 1

[0056] In Embodiment 1 of the present invention, the AGC and ALC high-gain active circuit components with uplink and downlink synchronous control functions are manufactured on a substrate with a high dielectric constant. The dielectric constant of the substrate is 10, the thickness of the board is 0.64mm, and the C1 copper skin Thickness 1oz (35 microns). In addition, due to the high system gain, in order to realize the uplink and downlink synchronous digital control function, it is necessary to increase the analog attenuation and increase the slope of the attenuation curve. Therefore, the matching PIN ESC attenuator used in Embodiment 1 is a 5-pipe PIN ESC attenuator, structured as Figure 5 shown.

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PUM

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Abstract

The invention discloses an AGC (automatic gain control) and ALC (adaptive logic circuit) high-gain active circuit module with an uplink and downlink synchronous control function. The AGC and ALC high-gain active circuit module comprises an AGC receiving module and an ALC transmitting module, wherein the AGC receiving module comprises a first balancing amplifier, a first electrically controlled attenuator, a first balancing amplifier module, a first coupler and a first direct-current processing circuit; and the ALC transmitting module comprises a second electrically controlled attenuator, a second balancing amplifier module, a power combiner, a second coupler and a second direct-current processing circuit. On the basis that the cost is not increased, a user can control uplink and downlink synchronous time by using external uplink and downlink time slot synchronous signals through the AGC and ALC high-gain active circuit module.

Description

technical field [0001] The invention relates to the technical field of mobile communication, in particular to an AGC and ALC high-gain active circuit assembly with uplink and downlink synchronous control functions. Background technique [0002] When the receiver receives a signal, the signal level at its input may vary in a wide range, and the output power of the receiver varies with the size of the external signal, so the output of the receiver will have a very different strength. signal power. If it is necessary to maintain the linear amplification of the receiving equipment in such a wide range without saturation and distortion of the signal, it is necessary to control the gain of the receiver to keep the output signal at an appropriate level to ensure the normal operation of the receiver. An AGC (Automatic Gain Control, automatic gain control) circuit can make the gain of the amplifying circuit automatically adjusted according to the signal strength. The AGC circuit ad...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03G3/30
Inventor 庄昆杰
Owner 庄昆杰
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