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Broadband low-noise amplifier circuit with double-inverter structure

A broadband low-noise, amplifier circuit technology, applied in the field of wireless communication, to achieve the effect of ensuring reliability, improving real-time utilization efficiency, and ensuring service quality requirements

Pending Publication Date: 2019-10-18
NANJING UNIV OF POSTS & TELECOMM +1
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For wireless mesh networks, in order to further pay attention to the quality of service requirements of data transmission, the traditional routing protocols used in wireless multi-hop networks can no longer meet the requirements, and new routing algorithms need to be designed to meet the quality of service requirements of data transmission

Method used

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  • Broadband low-noise amplifier circuit with double-inverter structure
  • Broadband low-noise amplifier circuit with double-inverter structure
  • Broadband low-noise amplifier circuit with double-inverter structure

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Embodiment 1

[0058] see figure 1 , the present embodiment provides a wireless mesh network opportunistic routing algorithm based on quality of service guarantee, comprising the following steps:

[0059] S1. Each node in the wireless mesh network periodically exchanges information, maintains and updates the neighbor table, and obtains the status information of the next-hop neighbor node;

[0060] S2. The node that needs to forward data broadcasts a routing request, and the neighbor node that receives the routing request calculates the distance to the destination node, and replies a routing response to the node that needs to forward data;

[0061] S3. According to the received routing response, the node that needs to forward the data forms the neighbor nodes that reply the routing response into an available neighbor node set. The neighbor nodes of the jump node form the set of available next-hop nodes;

[0062] S4. The node that needs to forward the data sets the ratio of the channel capac...

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Abstract

The invention discloses a broadband low-noise amplifier circuit with a double-inverter structure. The circuit comprises a first-stage amplifier, a second-stage amplifier, an input matching module, anoutput matching module and a bias module. The first-stage amplifier and the second-stage amplifier are both of an inverter structure. The output node of the first-stage amplifier is connected with theinput node of the second-stage amplifier through the coupling capacitor C2, the input matching module is connected with the input node of the first-stage amplifier, the output matching module is connected with the output node of the second-stage amplifier, and the bias module is arranged between the first-stage amplifier and the second-stage amplifier. The two stages of amplification modules of the circuit are of inverter structures, so that current multiplexing is formed, and the same bandwidth is realized by giving similar MOS transistor parameters. Due to the fact that the first-stage amplification module and the second-stage amplification module are in cascade connection, superposition of voltage gains can be achieved. Meanwhile, the bandwidth of the whole amplifier circuit can be kept consistent with the bandwidth of each stage of amplification circuit, and therefore broadband low-noise amplification of signals is completed.

Description

technical field [0001] The invention belongs to the technical field of wireless communication, and in particular relates to a wireless mesh network opportunistic routing algorithm based on quality of service guarantee. Background technique [0002] In a traditional wireless local area network (Wireless LAN), each user can access the network by connecting to a fixed access point (AP: Access Point) through a wireless link, which belongs to a single-hop network structure. Although this method brings more convenience to the user than the wired connection method. However, due to the limited range of wireless communication between fixed APs and users, and obstacles have a greater impact on communication between two points, it is difficult for traditional WLANs to achieve ideal coverage and scalability. [0003] Wireless mesh network (WMN: Wireless Mesh Networks) is a typical wireless multi-hop network. It is considered to be the most self-organizing wireless network due to its ad...

Claims

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Application Information

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IPC IPC(8): H04W28/02H04W40/04H04W40/12H04W40/24H04W84/12H04B17/309
CPCH04W40/248H04W40/04H04W40/12H04W84/12H04W28/0236H04W28/0263H04B17/309
Inventor 胡善文于澍宋海瑞胡云清王子轩
Owner NANJING UNIV OF POSTS & TELECOMM
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