Multi-channel folding receiving front-end assembly

Abstract

The utility model discloses a multichannel folding receiving front-end assembly, which comprises 12 input channels, 6 output channels and 6 single-pole double-throw switches, the 12 input channels are composed of 6 frequency band channels with the frequency range of 0.38 to 2 GHz and 6 frequency band channels with the frequency range of 2 to 18 GHz; the input end of each output channel is independently connected with the output end of the single-pole double-throw switch, and the input end of the single-pole double-throw switch is respectively connected with a 0.38-2GHz frequency band channel and a 2-18GHz frequency band channel; each 0.38-2GHz frequency band channel is formed by sequentially connecting an amplitude limiter, an amplifier, a temperature compensation attenuator, an amplifier, an equalizer, an attenuator and a sampling and holding amplifier in series; and each 2-18GHz frequency band channel is formed by sequentially connecting an amplitude limiter and an amplifier in series. According to the utility model, input ultra-wideband signals are segmented, sampling, holding and amplifying processing is carried out, and the signals can be output to a specific frequency range; moreover, the filter is small in size, and can be installed in an assembly.

Description

Technical Field

[0001] The utility model relates to the field of microwave communication, in particular to a multi-channel folding receiving front-end component. Background Art

[0002] With the development of modern communication technology, people have put forward higher requirements for the size, performance and bandwidth of communication equipment to meet the development needs of modern society for miniaturized, high-performance and low-cost communication equipment. As one of the core transceiver front ends of the communication system, the multi-channel folding receiving front-end component has a wide range of applications.

[0003] Traditional multi-channel folded receiving front-end components require both multi-channel ultra-wideband input and multi-channel output channels. The structural design requirements of the module are very high. The pre-selected filters are difficult to integrate into the components and require external filter groups, which are large in size. Utility Model Content

[0004] The utility model aims to provide a multi-channel folding receiving front-end component with small volume and stable output frequency.

[0005] The purpose of the utility model is achieved as follows: a multi-channel folding receiving front-end component, including 12 input channels and 6 output channels; the 12 input channels include six 0.38-2GHz frequency band channels and six 2-18GHz frequency band channels; the input end of each of the output channels is connected to the output end of a single-pole double-throw switch, and the input end of the single-pole double-throw switch is respectively connected to one 0.38-2GHz frequency band channel and one 2-18GHz frequency band channel;

[0006] The 0.38-2GHz frequency band channels are all composed of a limiter, a first amplifier, a temperature-compensated attenuator, a second amplifier, an equalizer, an attenuator, and a sample-and-hold amplifier connected in series in sequence;

[0007] The 2-18 GHz frequency band channels are all composed of a limiter and a third amplifier connected in series.

[0008] Preferably, each group of sampling and holding amplifiers in the 2-18 GHz frequency band is connected to a differential clock signal, and the differential clock signal is power-divided into six clock signal channels through a power division chip.

[0009] Preferably, the 0.38-2 GHz frequency band channel and the 2-18 GHz frequency band channel are located in the front and back routing layers respectively.

[0010] Preferably, the differential clock signal is vertically interconnected with the sample-and-hold amplifier via an SMP connector.

[0011] Preferably, the limiter model is CNW7P1180A, the temperature compensated attenuator model is WTCA4N006, the first amplifier, the second amplifier, and the third amplifier model are HMC462, the equalizer model is IEQ-02184, the attenuator model is 3590-06, and the sample-and-hold amplifier model is HMC661.

[0012] Compared with the prior art, the utility model is beneficial in that:

[0013] The structure is cleverly designed, with the two frequency bands routed through the front and back sides to increase isolation, and the signal is output through a single-pole double-throw switch through a vertical transition design; the clock signal is vertically interconnected through the SMP connector, effectively reducing the structural size of the component. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the process of the utility model. DETAILED DESCRIPTION

[0015] The following is a description of the implementation of the present invention by means of specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0016] It should be noted that in the description of the present utility model, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use, which are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third" and the like are only used to distinguish the description, and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0017] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, it can be a mechanical connection, it can be an electrical connection, it can be a direct connection, it can be indirectly connected through an intermediate medium, and it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] like Figure 1 As shown, a multi-channel folded receiving front-end component includes 12 input channels and 6 output channels; the 12 input channels include six 0.38-2GHz frequency band channels and six 2-18GHz frequency band channels; the input end of each output channel is connected to the output end of a single-pole double-throw switch, and the input end of the single-pole double-throw switch is respectively connected to one 0.38-2GHz frequency band channel and one 2-18GHz frequency band channel; a single-pole double-throw switch is used between channels to segment the input ultra-wideband signal, and a sample-hold amplification process is performed to output the signal within a specific frequency range;

[0019] The 0.38-2GHz frequency band channels are all composed of a limiter, a first amplifier, a temperature-compensated attenuator, a second amplifier, an equalizer, an attenuator, and a sample-and-hold amplifier connected in series in sequence;

[0020] The 2-18GHz frequency band channels are all composed of limiters and amplifiers connected in series in sequence; the first stage of the 12 input channels uses limiters to prevent high-power signals from entering the module and burning subsequent chips; a multi-stage amplification cascade method is used in the channel to amplify the received signal, and attenuation chips are cascaded between amplifiers to reduce standing waves between amplifiers.

[0021] Each group of sampling and holding amplifiers in the 2-18 GHz frequency band is connected to the differential clock signal, and the differential clock signal is divided into six clock signal channels through a power division chip.

[0022] The 0.38-2GHz frequency band channel and the 2-18GHz frequency band channel are located in the positive and negative routing layers respectively; the two frequency bands are routed through the positive and negative sides to increase isolation, and the signal is output through a single-pole double-throw switch through a vertical transition design.

[0023] The differential clock signal is vertically interconnected with the sample-and-hold amplifier through the SMP connector, effectively reducing the structural size of the component.

[0024] The limiter model is CNW7P1180A, the temperature compensated attenuator model is WTCA4N006, the first amplifier, the second amplifier, and the third amplifier model are HMC462, the equalizer model is IEQ-02184, the attenuator model is 3590-06, and the sample-and-hold amplifier model is HMC661.

[0025] The working principle of the utility model is as follows: the RF signal in the 0.38-2GHz frequency band is mainly amplified, and the receiver can directly sample it, and the principle is not repeated. The 2-18GHz frequency band divides the entire frequency band into different frequency bands according to the step of 1.28GHz. Through the sample-and-hold amplifier, the RF signal and the differential clock signal of each frequency band are sampled and amplified to obtain the intermediate frequency signal of 0.01-1.28GHz. The receiver performs direction finding by sampling the phase and amplitude of the intermediate frequency signal of 0.01-1.28GHz of 6 channels.

[0026] The above-described embodiments are merely descriptions of preferred implementations of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made by ordinary personnel in the field to the technical solution of the present invention should fall within the protection scope of the present invention, and the technical contents of the present invention for protection have been fully recorded in the claims.

Claims

1. A multi-channel folding receiving front-end component, characterized in that: It includes 12 input channels, 6 output channels, and 6 single-pole double-throw switches; the 12 input channels are composed of 6 0.38-2GHz frequency band channels and 6 2-18GHz frequency band channels; the input end of each output channel is individually connected to the output end of the single-pole double-throw switch, and the input end of the single-pole double-throw switch is respectively connected to 1 0.38-2GHz frequency band channel and 1 2-18GHz frequency band channel; The 0.38-2GHz frequency band channels are all composed of a limiter, a first amplifier, a temperature-compensated attenuator, a second amplifier, an equalizer, an attenuator, and a sample-and-hold amplifier connected in series in sequence; The 2-18 GHz frequency band channels are all composed of a limiter and a third amplifier connected in series.

2. A multi-channel folding receiving front-end assembly according to claim 1, characterized in that: Each group of sampling and holding amplifiers in the 2-18 GHz frequency band is connected to a differential clock signal, and the differential clock signal is divided into six clock signal channels through a power division chip.

3. A multi-channel folding receiving front-end assembly according to claim 1, characterized in that: The 0.38-2 GHz frequency band channel and the 2-18 GHz frequency band channel are located in the positive and negative routing layers respectively.

4. A multi-channel folding receiving front-end assembly according to claim 2, characterized in that: The differential clock signal is vertically interconnected with the sample-and-hold amplifier through the SMP connector.

5. The multi-channel folding receiving front-end assembly according to claim 1, characterized in that: The limiter model is CNW7P1180A, the temperature compensated attenuator model is WTCA4N006, the first amplifier, the second amplifier, and the third amplifier model are HMC462, the equalizer model is IEQ-02184, the attenuator model is 3590-06, and the sample-and-hold amplifier model is HMC661.

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