CN219554928U - Broadband pre-low noise amplifier capable of automatically matching and interconnecting - Google Patents

Abstract

The utility model relates to the technical field of amplifiers, in particular to a broadband pre-low noise amplifier capable of being automatically matched and interconnected, which comprises a broadband low noise amplification module, wherein the broadband low noise amplification module is connected with a power supply and a control module through signals, and the broadband low noise amplification module comprises a first capacitor, a first amplifier, a second capacitor, a second amplifier, a third capacitor, a third amplifier, a fourth capacitor, a fourth amplifier and a fifth capacitor which are sequentially connected; the power supply and control module comprises a single chip microcomputer U1, and a filtering module, a temperature detection unit, a power supply module, a USB module, an indicator light module and a data storage module which are electrically connected with the single chip microcomputer U1, wherein the USB module comprises a USB driving circuit, and the USB driving circuit comprises a USBJ1, an analog switch U8 and a common-mode inductor L1. The power supply circuit is used for solving the problem that the power supply stability of the broadband pre-low noise amplifier is poor.

Description

Broadband pre-low noise amplifier capable of automatically matching and interconnecting

Technical Field

The utility model relates to the technical field of amplifiers, in particular to a broadband pre-low noise amplifier capable of automatically matching and interconnecting.

Background

Along with the development of modern communication, the noise requirements on weaponry and electronic equipment are higher and higher, such as instruments and meters like phased array radars, satellite receivers, spectrum detection equipment and radar simulators, and the noise coefficients have great influence on the receiving performance of the products, so that higher requirements are put forward on the accuracy of the noise coefficient test; therefore, a front-end low-noise amplifier is extended to improve the accuracy and sensitivity of the noise coefficient of the test instrument;

at present, the matching interconnection of the front-end low noise amplifier and the signal analyzer is realized by adopting the USB protocol in the prior art, however, the broadband microwave technology of the existing broadband front-end low noise amplifier, the power supply embedded circuit and the data storage circuit are mutually independent, the stability of the power supply is poor after the USB protocol is used for matching interconnection with the signal analyzer, the stability of the power supply directly influences the radio frequency index of the signal analyzer, and in order to optimize the stability of the power supply, the broadband front-end low noise amplifier capable of automatically matching interconnection is provided.

Disclosure of Invention

The utility model aims to provide a broadband pre-low noise amplifier capable of automatically matching and interconnecting, which is used for solving the problem of poor power supply stability of the broadband pre-low noise amplifier in the background technology.

In order to achieve the above purpose, the utility model provides a broadband pre-low noise amplifier capable of automatically matching and interconnection, which comprises a broadband low noise amplification module, wherein the broadband low noise amplification module is connected with a power supply and a control module through signals, and the broadband low noise amplification module comprises a first capacitor, a first amplifier, a second capacitor, a second amplifier, a third capacitor, a third amplifier, a fourth capacitor, a fourth amplifier and a fifth capacitor which are sequentially connected; the power supply and control module comprises a single chip microcomputer U1, and a filtering module, a temperature detection unit, a power supply module, a USB module, an indicator light module and a data storage module which are electrically connected with the single chip microcomputer U1, wherein the USB module comprises a USB driving circuit, and the USB driving circuit comprises a USBJ1, an analog switch U8 and a common-mode inductor L1.

Further, the 1 pin of the analog switch U8 is grounded through a resistor R7, the 2 pin of the analog switch U8 is connected to the 1 pin of the common mode inductor L1, the 3 pin of the analog switch U8 is connected to a welding point TP1, the 4 pin of the analog switch U8 is connected to the 44 pin of the single chip microcomputer U1, the 5 pin of the analog switch U8 is grounded, the 6 pin of the analog switch U8 is connected to the 45 pin of the single chip microcomputer U1, the 7 pin of the analog switch U8 is connected to a welding point TP2, the 8 pin of the analog switch U8 is connected to the 2 pin of the common mode inductor L1, the 9 pin of the analog switch U8 is grounded through a resistor R6, one end of the 10 pin of the analog switch U8 is connected to a power supply VCC3V3, and the other end of the 10 pin of the analog switch U8 is grounded through a capacitor C28; the 2 pin of the analog switch U8 is also connected to the 2 pin of the common mode inductance L1 through a capacitor C4 and a capacitor C5; the 4 pins of the common mode inductor L1 are connected to the 2 pins of the USBJ1, the 4 pins of the common mode inductor L1 are grounded through the bidirectional transient suppression diode DR1, the 3 pins of the common mode inductor L1 are grounded through the bidirectional transient suppression diode DR2, the 4 pins of the USBJ1 are grounded, and the 1 pins of the USBJ1 are connected to the USB current limiting protection circuit.

Further, the USB current limiting protection circuit comprises a current limiting chip U4, one end of a 1 pin of the current limiting chip U4 is connected with 5V voltage, the other end of the 1 pin of the current limiting chip U4 is grounded through a capacitor C10, a 3 pin of the current limiting chip U4 is grounded through a resistor R14, a 2 pin of the current limiting chip U4 is grounded, one end of a 5 pin of the current limiting chip U4 is connected with USB5V voltage, the other end of the 5 pin of the current limiting chip U4 is grounded through a transient suppression diode D6, a 4 pin of the current limiting chip U4 is connected with USB5V voltage through a resistor R15, and a capacitor C13 and a capacitor C11 are connected in parallel on the resistor R15.

Furthermore, the input end and the output end of the broadband low-noise amplification module are both connected with 50 omega impedance transmission lines.

Further, the power supply module comprises a DC-DC boost chip U5, and the DC-DC boost chip U5 is used for converting 3.3V power supply voltage into 5V power supply voltage.

Further, the data storage module comprises a Flash chip U2, a 1 pin of the Flash chip U2 is connected with a 26 pin of the single chip microcomputer U1, a 2 pin of the Flash chip U2 is connected with a 22 pin of the single chip microcomputer U1 through a resistor R3, a 5 pin of the Flash chip U2 is connected with a 23 pin of the single chip microcomputer U1 through a resistor R4, a 6 pin of the Flash chip U2 is connected with a 21 pin of the single chip microcomputer U1, a 3 pin of the Flash chip U2 is connected with a power VCC3V3 through a resistor R28, a 4 pin of the Flash chip U2 is grounded, a 7 pin of the Flash chip U2 is connected with an 8 pin of the Flash chip U2 through a resistor R2, one end of the 8 pin of the Flash chip U2 is connected with a power VCC3V3, and the other end of the 8 pin of the Flash chip U2 is grounded through a capacitor C1.

Further, the temperature detection unit comprises a temperature sensor chip U7, 3 pins of the temperature sensor chip U7 are connected to a power supply VCC3V3 through a resistor R19, one end of 4 pins of the temperature sensor chip U7 is connected to 33 pins of the single chip microcomputer U1, the other end of 4 pins of the temperature sensor chip U7 is connected to the power supply VCC3V3 through a resistor R20, and 5 pins of the temperature sensor chip U7 are grounded.

Further, the indicator light module comprises a first indicator light unit, a second indicator light unit and a third indicator light unit which are respectively connected with the power supply VCC3V 3; the first indicator lamp unit comprises a diode D1, wherein the positive electrode of the diode D1 is connected with a power supply VCC3V3 through a resistor R30, the negative electrode of the diode D1 is connected with the collector electrode of a triode Q2, the base electrode of the triode Q2 is connected with a pin 53 of the singlechip U1 through a resistor R50, and the emitter electrode of the triode Q2 is grounded; the second indicator lamp unit comprises a diode D3, the positive electrode of the diode D3 is connected with a power supply VCC3V3 through a resistor R29, the negative electrode of the diode D3 is connected with the collector electrode of a triode Q1, the base electrode of the triode Q1 is connected with the pin 52 of the singlechip U1 through a resistor R49, and the emitter electrode of the triode Q1 is grounded; the third indicator lamp unit comprises a diode D4, the positive electrode of the diode D4 is connected with a power supply VCC3V3 through a resistor R31, the negative electrode of the diode D4 is connected with the collector electrode of a triode Q3, the base electrode of the triode Q3 is connected with the pin 54 of the singlechip U1 through a resistor R51, and the emitter electrode of the triode Q3 is grounded.

Further, the power supply and control module further comprises a first frequency oscillation circuit and a second frequency oscillation circuit, the first frequency oscillation circuit comprises a crystal oscillator Y1 and a resistor R10 connected with the crystal oscillator Y1 in parallel, two ends of the crystal oscillator Y1 are respectively connected with a capacitor C6 and a capacitor C8 to the ground in parallel, and two ends of the crystal oscillator Y1 are respectively connected with a 3 pin and a 4 pin of the singlechip U1; the second frequency oscillation circuit comprises a crystal oscillator Y2 and a resistor R11 connected with the crystal oscillator Y2 in parallel, wherein two ends of the crystal oscillator Y2 are respectively connected with a capacitor C7 and a capacitor C9 in parallel to the ground, and two ends of the crystal oscillator Y1 are respectively connected with a pin 5 and a pin 6 of the singlechip U1

The beneficial effects of the utility model include:

1. according to the utility model, through the power supply and control module, the singlechip U1, the filtering module, the power supply module, the USB driving circuit and the USB current limiting protection circuit in the USB module in the power supply and control module are utilized, so that the broadband preposed low-noise amplifier capable of being automatically matched and interconnected has the functions of power supply filtering, conversion and voltage stabilization, and meanwhile, the USB module can be directly matched with the whole signal analyzer, and noise from power supply is effectively inhibited through the analog switch U8, the common-mode inductor L1, the bidirectional transient suppression diode DR1 and the bidirectional transient suppression diode DR2 in the USB driving circuit, and the stability of the power supply is optimized.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments of the present utility model will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present utility model and should not be considered as limiting the scope, and other related drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of the overall structure of a wideband pre-low noise amplifier according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a wideband low noise amplifying module according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a power supply and control module according to an embodiment of the present utility model;

fig. 4 is a schematic circuit structure diagram of a single chip microcomputer U1 according to an embodiment of the present utility model;

FIG. 5 is a schematic diagram of a circuit structure of a USB driving circuit according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram of a circuit structure of a USB current limiting protection circuit according to an embodiment of the present utility model;

fig. 7 is a schematic circuit diagram of a power module according to an embodiment of the present utility model;

FIG. 8 is a schematic circuit diagram of a data storage module according to an embodiment of the present utility model;

fig. 9 is a schematic circuit diagram of a temperature detecting unit according to an embodiment of the present utility model;

fig. 10 is a schematic circuit diagram of an indicator light module according to an embodiment of the present utility model;

fig. 11 is a schematic circuit diagram of a first frequency oscillating circuit according to an embodiment of the present utility model;

fig. 12 is a schematic circuit diagram of a second frequency oscillating circuit according to an embodiment of the present utility model;

icon: 100-broadband low-noise amplification module, 110-first capacitor, 120-first amplifier, 130-second capacitor, 140-second amplifier, 150-third capacitor, 160-third amplifier, 170-fourth capacitor, 180-fourth amplifier, 190-fifth capacitor, 200-power and control module, 300-USB module, 400-50Ω impedance transmission line.

Detailed Description

The technical solutions in the embodiments of the present utility model will be described below with reference to the accompanying drawings in the embodiments of the present utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures. It should be noted that, the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like refer to the azimuth or positional relationship based on the azimuth or positional relationship shown in the drawings, or the azimuth or positional relationship in which the inventive product is conventionally put in use, only for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Referring to fig. 1 to 4, the wideband pre-low noise amplifier with automatic matching and interconnection provided in the present disclosure includes a wideband low noise amplifying module 100, where the wideband low noise amplifying module 100 is in signal connection with a power supply and control module 200, and the wideband low noise amplifying module 100 includes a first capacitor 110, a first amplifier 120, a second capacitor 130, a second amplifier 140, a third capacitor 150, a third amplifier 160, a fourth capacitor 170, a fourth amplifier 180, and a fifth capacitor 190, which are sequentially connected; the power supply and control module 200 comprises a singlechip U1, a filtering module electrically connected with the singlechip U1, a temperature detection unit, a power supply module, a USB module 300, an indicator light module and a data storage module; the first amplifier 120, the second amplifier 140, the third amplifier 160, and the fourth amplifier 180 in the wideband low noise amplification module 100 all adopt wideband internal matching chips mature in the prior art, no additional matching links are needed, only 50 Ω impedance transmission lines 400 are connected to the input end and the output end of the wideband low noise amplification module 100, and the characteristic of wideband transmission can be realized by performing blocking processing, and the automatic matching interconnection with a signal analyzer can be completed through the existing USB protocol;

for example, as shown in fig. 5, the USB module 300 includes a USB driving circuit, where the USB driving circuit includes a USB j1, an analog switch U8, and a common-mode inductor L1, the 1 pin of the analog switch U8 is grounded through a resistor R7, the 2 pin of the analog switch U8 is connected to the 1 pin of the common-mode inductor L1, the 3 pin of the analog switch U8 is connected to a welding point TP1, the 4 pin of the analog switch U8 is connected to the 44 pin of the single-chip microcomputer U1, the 5 pin of the analog switch U8 is grounded, the 6 pin of the analog switch U8 is connected to the 45 pin of the single-chip microcomputer U1, the 7 pin of the analog switch U8 is connected to a welding point TP2, the 8 pin of the analog switch U8 is connected to the 2 pin of the common-mode inductor L1, the 9 pin of the analog switch U8 is grounded through a resistor R6, one end of the 10 pin of the analog switch U8 is connected to a power VCC3V3, and the other end of the 10 pin of the analog switch U8 is grounded through a capacitor C28; the 2 pin of the analog switch U8 is also connected to the 2 pin of the common mode inductance L1 through a capacitor C4 and a capacitor C5; the pin 4 of the common mode inductor L1 is connected with the pin 2 of the USBJ1, the pin 4 of the common mode inductor L1 is grounded through a bidirectional transient suppression diode DR1, the pin 3 of the common mode inductor L1 is grounded through a bidirectional transient suppression diode DR2, the pin 4 of the USBJ1 is grounded, and the pin 1 of the USBJ1 is connected with a USB current limiting protection circuit; the broadband pre-low noise amplifier capable of being automatically matched and interconnected provided by the embodiment can be directly matched with a complete machine of a signal analyzer by utilizing the singlechip U1, the filtering module, the power module in the power and control module 200, the USB driving circuit and the USB current limiting protection circuit in the USB module 300 through the power and control module 200, so that the broadband pre-low noise amplifier capable of being automatically matched and interconnected has the functions of power filtering, conversion and voltage stabilization, and can effectively inhibit noise from power supply through the analog switch U8, the common mode inductor L1, the bidirectional transient suppression diode DR1 and the bidirectional transient suppression diode DR2 in the USB driving circuit, and the stability of the power supply is optimized.

For example, as shown in fig. 6, the USB current-limiting protection circuit includes a current-limiting chip U4, one end of the 1 pin of the current-limiting chip U4 is connected to a 5V voltage, the other end of the 1 pin of the current-limiting chip U4 is grounded through a capacitor C10, the 3 pin of the current-limiting chip U4 is grounded through a resistor R14, the 2 pin of the current-limiting chip U4 is grounded, one end of the 5 pin of the current-limiting chip U4 is connected to a USB5V voltage, the other end of the 5 pin of the current-limiting chip U4 is grounded through a transient suppression diode D6, the 4 pin of the current-limiting chip U4 is connected to a USB5V voltage through a resistor R15, and the resistor R15 is further connected in parallel with a capacitor C13 and a capacitor C11;

for example, as shown in fig. 7, the power module includes a DC-DC boost chip U5, the DC-DC boost chip U5 being configured to convert a 3.3V power supply voltage to a 5V power supply voltage;

for example, as shown in fig. 8, the data storage module includes a Flash chip U2, a 1 pin of the Flash chip U2 is connected to a 26 pin of the single chip microcomputer U1, a 2 pin of the Flash chip U2 is connected to a 22 pin of the single chip microcomputer U1 through a resistor R3, a 5 pin of the Flash chip U2 is connected to a 23 pin of the single chip microcomputer U1 through a resistor R4, a 6 pin of the Flash chip U2 is connected to a 21 pin of the single chip microcomputer U1, a 3 pin of the Flash chip U2 is connected to a power VCC3V3 through a resistor R28, a 4 pin of the Flash chip U2 is grounded, a 7 pin of the Flash chip U2 is connected to an 8 pin of the Flash chip U2 through a resistor R2, one end of the 8 pin of the Flash chip U2 is connected to a power VCC3V3, and the other end of the 8 pin of the Flash chip U2 is grounded through a capacitor C1; in the embodiment, by arranging the Flash chip U2, the temperature data from the temperature detection unit can be read and uploaded in real time;

for example, as shown in fig. 9, the temperature detection unit includes a temperature sensor chip U7, a 3 pin of the temperature sensor chip U7 is connected to a power supply VCC3V3 through a resistor R19, one end of a 4 pin of the temperature sensor chip U7 is connected to a 33 pin of the single chip microcomputer U1, the other end of the 4 pin of the temperature sensor chip U7 is connected to a power supply VCC3V3 through a resistor R20, and a 5 pin of the temperature sensor chip U7 is grounded; in this embodiment, the temperature sensor chip U7 is configured to collect temperature data of the broadband low noise amplification module 100 in real time;

for example, as shown in fig. 10, the indicator light module includes a first indicator light unit, a second indicator light unit, and a third indicator light unit that are respectively connected to the power VCC3V 3; the first indicator lamp unit comprises a diode D1, wherein the positive electrode of the diode D1 is connected with a power supply VCC3V3 through a resistor R30, the negative electrode of the diode D1 is connected with the collector electrode of a triode Q2, the base electrode of the triode Q2 is connected with a pin 53 of the singlechip U1 through a resistor R50, and the emitter electrode of the triode Q2 is grounded; the second indicator lamp unit comprises a diode D3, the positive electrode of the diode D3 is connected with a power supply VCC3V3 through a resistor R29, the negative electrode of the diode D3 is connected with the collector electrode of a triode Q1, the base electrode of the triode Q1 is connected with the pin 52 of the singlechip U1 through a resistor R49, and the emitter electrode of the triode Q1 is grounded; the third indicator lamp unit comprises a diode D4, the positive electrode of the diode D4 is connected with a power supply VCC3V3 through a resistor R31, the negative electrode of the diode D4 is connected with the collector electrode of a triode Q3, the base electrode of the triode Q3 is connected with the pin 54 of the singlechip U1 through a resistor R51, and the emitter electrode of the triode Q3 is grounded; in this embodiment, the working state of the wideband low noise amplification module 100 may be displayed in real time by setting an indicator light module, where the first indicator light unit is preferably configured as a yellow indicator light, the second indicator light unit is preferably configured as a green indicator light, and the third indicator light unit is preferably configured as a red indicator light, and the yellow indicator light, the green indicator light, and the red indicator light respectively represent three different working states of the wideband low noise amplification module 100;

for example, as shown in fig. 11 and 12, the system further includes a first frequency oscillation circuit and a second frequency oscillation circuit, where the first frequency oscillation circuit includes a crystal oscillator Y1 and a resistor R10 connected in parallel with the crystal oscillator Y1, two ends of the crystal oscillator Y1 are respectively connected in parallel with a capacitor C6 and a capacitor C8 to ground, and two ends of the crystal oscillator Y1 are respectively connected to 3 pins and 4 pins of the single chip microcomputer U1; the second frequency oscillation circuit comprises a crystal oscillator Y2 and a resistor R11 connected with the crystal oscillator Y2 in parallel, two ends of the crystal oscillator Y2 are respectively connected with a capacitor C7 and a capacitor C9 in parallel to the ground, and two ends of the crystal oscillator Y1 are respectively connected with a pin 5 and a pin 6 of the single chip microcomputer U1.

In addition to the above description, the following points are described:

(1) The drawings of the embodiments of the present disclosure relate only to the structures related to the embodiments of the present disclosure, and other structures may refer to general designs;

(2) The control programs such as the USB communication protocol, the test noise coefficient and the like in the disclosure are mature conventional technologies in the prior art, and a person skilled in the art can realize the application of the utility model according to the principle of the same function in the prior art, and the program part is not the innovation point of the utility model;

(3) The embodiments of the present disclosure and features in the embodiments may be combined with each other to arrive at a new embodiment without conflict.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims (9)

1. The broadband pre-low noise amplifier capable of being automatically matched and interconnected is characterized by comprising a broadband low noise amplification module, wherein the broadband low noise amplification module is in signal connection with a power supply and a control module, and the broadband low noise amplification module comprises a first capacitor, a first amplifier, a second capacitor, a second amplifier, a third capacitor, a third amplifier, a fourth capacitor, a fourth amplifier and a fifth capacitor which are sequentially connected; the power supply and control module comprises a single chip microcomputer U1, and a filtering module, a temperature detection unit, a power supply module, a USB module, an indicator light module and a data storage module which are electrically connected with the single chip microcomputer U1, wherein the USB module comprises a USB driving circuit, and the USB driving circuit comprises a USBJ1, an analog switch U8 and a common-mode inductor L1.

2. The broadband pre-low noise amplifier according to claim 1, wherein the 1 pin of the analog switch U8 is grounded through a resistor R7, the 2 pin of the analog switch U8 is connected to the 1 pin of the common mode inductor L1, the 3 pin of the analog switch U8 is connected to a welding point TP1, the 4 pin of the analog switch U8 is connected to the 44 pin of the single chip microcomputer U1, the 5 pin of the analog switch U8 is grounded, the 6 pin of the analog switch U8 is connected to the 45 pin of the single chip microcomputer U1, the 7 pin of the analog switch U8 is connected to a welding point TP2, the 8 pin of the analog switch U8 is connected to the 2 pin of the common mode inductor L1, the 9 pin of the analog switch U8 is grounded through a resistor R6, one end of the 10 pin of the analog switch U8 is connected to a power VCC3V3, and the other end of the 10 pin of the analog switch U8 is grounded through a capacitor C28; the 2 pin of the analog switch U8 is also connected to the 2 pin of the common mode inductance L1 through a capacitor C4 and a capacitor C5; the 4 pins of the common mode inductor L1 are connected to the 2 pins of the USBJ1, the 4 pins of the common mode inductor L1 are grounded through the bidirectional transient suppression diode DR1, the 3 pins of the common mode inductor L1 are grounded through the bidirectional transient suppression diode DR2, the 4 pins of the USBJ1 are grounded, and the 1 pins of the USBJ1 are connected to the USB current limiting protection circuit.

3. The broadband pre-low noise amplifier according to claim 2, wherein the USB current limiting protection circuit includes a current limiting chip U4, one end of a 1 pin of the current limiting chip U4 is connected to a 5V voltage, the other end of the 1 pin of the current limiting chip U4 is grounded through a capacitor C10, a 3 pin of the current limiting chip U4 is grounded through a resistor R14, a 2 pin of the current limiting chip U4 is grounded, one end of a 5 pin of the current limiting chip U4 is connected to a USB5V voltage, the other end of the 5 pin of the current limiting chip U4 is grounded through a transient suppression diode D6, a 4 pin of the current limiting chip U4 is connected to a USB5V voltage through a resistor R15, and a capacitor C13 and a capacitor C11 are further connected in parallel to the resistor R15.

4. The broadband pre-low noise amplifier according to claim 1, wherein the input end and the output end of the broadband low noise amplification module are connected with a 50Ω impedance transmission line.

5. The broadband pre-low noise amplifier according to claim 1, wherein the power supply module comprises a DC-DC boost chip U5, the DC-DC boost chip U5 being configured to convert a 3.3V supply voltage to a 5V supply voltage.

6. The broadband pre-low noise amplifier according to claim 1, wherein the data storage module comprises a Flash chip U2, a 1 pin of the Flash chip U2 is connected to a 26 pin of the single chip microcomputer U1, a 2 pin of the Flash chip U2 is connected to a 22 pin of the single chip microcomputer U1 through a resistor R3, a 5 pin of the Flash chip U2 is connected to a 23 pin of the single chip microcomputer U1 through a resistor R4, a 6 pin of the Flash chip U2 is connected to a 21 pin of the single chip microcomputer U1, a 3 pin of the Flash chip U2 is connected to a power VCC3V3 through a resistor R28, a 4 pin of the Flash chip U2 is grounded, a 7 pin of the Flash chip U2 is connected to an 8 pin of the Flash chip U2 through a resistor R2, one end of the 8 pin of the Flash chip U2 is connected to the power VCC3V3, and the other end of the 8 pin of the Flash chip U2 is grounded through a capacitor C1.

7. The broadband pre-low noise amplifier according to claim 1, wherein the temperature detection unit comprises a temperature sensor chip U7, 3 pins of the temperature sensor chip U7 are connected to a power supply VCC3V3 through a resistor R19, one end of 4 pins of the temperature sensor chip U7 is connected to 33 pins of the single chip microcomputer U1, the other end of 4 pins of the temperature sensor chip U7 is connected to the power supply VCC3V3 through a resistor R20, and 5 pins of the temperature sensor chip U7 are grounded.

8. The broadband pre-low noise amplifier according to claim 1, wherein the indicator light module comprises a first indicator light unit, a second indicator light unit and a third indicator light unit which are respectively connected with a power supply VCC3V 3; the first indicator lamp unit comprises a diode D1, wherein the positive electrode of the diode D1 is connected with a power supply VCC3V3 through a resistor R30, the negative electrode of the diode D1 is connected with the collector electrode of a triode Q2, the base electrode of the triode Q2 is connected with a pin 53 of the singlechip U1 through a resistor R50, and the emitter electrode of the triode Q2 is grounded; the second indicator lamp unit comprises a diode D3, the positive electrode of the diode D3 is connected with a power supply VCC3V3 through a resistor R29, the negative electrode of the diode D3 is connected with the collector electrode of a triode Q1, the base electrode of the triode Q1 is connected with the pin 52 of the singlechip U1 through a resistor R49, and the emitter electrode of the triode Q1 is grounded; the third indicator lamp unit comprises a diode D4, the positive electrode of the diode D4 is connected with a power supply VCC3V3 through a resistor R31, the negative electrode of the diode D4 is connected with the collector electrode of a triode Q3, the base electrode of the triode Q3 is connected with the pin 54 of the singlechip U1 through a resistor R51, and the emitter electrode of the triode Q3 is grounded.

9. The broadband pre-low noise amplifier according to any one of claims 1 to 8, wherein the power supply and control module further comprises a first frequency oscillation circuit and a second frequency oscillation circuit, the first frequency oscillation circuit comprises a crystal oscillator Y1 and a resistor R10 connected in parallel with the crystal oscillator Y1, two ends of the crystal oscillator Y1 are respectively connected with a capacitor C6 and a capacitor C8 to the ground in parallel, and two ends of the crystal oscillator Y1 are respectively connected with 3 pins and 4 pins of the single chip microcomputer U1; the second frequency oscillation circuit comprises a crystal oscillator Y2 and a resistor R11 connected with the crystal oscillator Y2 in parallel, two ends of the crystal oscillator Y2 are respectively connected with a capacitor C7 and a capacitor C9 in parallel to the ground, and two ends of the crystal oscillator Y1 are respectively connected with a pin 5 and a pin 6 of the single chip microcomputer U1.