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5G NR LFEM out-of-band rejection zero reconfigurable structure

A technology of out-of-band suppression and zero transmission, applied in the field of communication, can solve problems such as changing substrate design and matching methods, and achieve the effect of saving simulation debugging time

Active Publication Date: 2022-04-15
CHENGDU PINNACLE MICROWAVE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above-mentioned deficiencies in the prior art, a reconfigurable structure of 5G NR LFEM out-of-band suppression zero point provided by the present invention solves the problem of changing the out-of-band suppression zero point in the traditional 5G NR LFEM receiving module and needs to change the substrate design and matching method question

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Embodiment

[0030] Such as figure 1 As shown, the present invention provides a reconfigurable structure of 5G NR LFEM out-of-band suppression zero point, including ANT antenna input port, single-pole four-throw switch SP4T, single-pole three-throw switch SP3T, filter module, low noise amplifier LNA, output module and a switch digital control interface MIPI; the ANT antenna input port is connected to the single-pole four-throw switch SP4T, the single-pole four-throw switch SP4T is connected to the filter module, and the filter module is connected to the low-noise amplifier LNA The low-noise amplifier LNA is connected to the output module, and the single-pole four-throw switch SP4T, single-pole three-throw switch SP3T and low-noise amplifier LNA are also respectively connected to the output module and the data control interface MIPI. The output module includes a radio frequency interface RF_OUT1, a radio frequency interface RF_OUT2, a radio frequency interface RF_OUT3, and a radio frequency...

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Abstract

The invention provides a 5G NR LFEM out-of-band rejection zero reconfigurable structure, and belongs to the technical field of communication. Comprising an ANT antenna input port, a single-pole four-throw switch SP4T, a single-pole three-throw switch SP3T, a filter module, a low noise amplifier LNA, an output module and a switch digital control interface MIPI. The suppression zero point provided by the invention is reconfigurable, the simulation debugging time of a designer is saved, different requirements of different terminals on out-of-band suppression are met, and the same scheme is compatible with multiple requirements, so that the same design can be compatible with different out-of-band suppression requirements of different terminal clients on different Bands, and the designer is more flexible and convenient. According to the invention, the problem that the substrate design and the matching mode need to be changed when the out-of-band rejection zero point in the traditional 5G NR LFEM receiving module is changed is solved.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a 5G NR LFEM out-of-band suppression zero-point reconfigurable structure. Background technique [0002] The RF front-end module is the core component of 5G communication. It is divided into the main set transmitting module and the diversity receiving module. The 5G NR (New Radio) part of the diversity receiving module is called 5G NR LFEM. It mainly uses Switch, LNA, N77 / N79 filter is the core. [0003] In the 5G NR LFEM receiving module, the mainstream commonly used 5G receiving frequency bands are Bnad N77 (3.3GHz-4.2GHz) and N79 (4.4GHz-5GHz). In terminal use, there are rigid requirements for out-of-band suppression of received signals. With the out-of-band suppression of different frequency bands, each terminal will vary according to different usage scenarios and regions. The traditional solution will determine the position and matching method of the out-o...

Claims

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Application Information

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IPC IPC(8): H04B1/10H04B1/16H04B1/401
Inventor 安苏生董元旦杨涛
Owner CHENGDU PINNACLE MICROWAVE CO LTD