CN212572520U

CN212572520U - Millimeter wave frequency hopping phase-locked module

Info

Publication number: CN212572520U
Application number: CN202021635982.9U
Authority: CN
Inventors: 李亚波
Original assignee: Shaanxi Boya Microwave Co ltd
Current assignee: Shaanxi Boya Microwave Co ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-02-19
Anticipated expiration: 2030-08-10

Abstract

The utility model provides a millimeter wave frequency hopping phase-locked module, including the crystal oscillator that is used for providing reference clock signal, be used for carrying out the X wave band frequency synthesizer of phase-locked to outside reference signal and reference clock signal, be used for carrying out the amplifier that amplifies to the signal, be used for carrying out the frequency doubling frequency ware to the signal, be used for carrying out the band-pass filter of filtering to the signal and be used for providing the power module of electric energy; the input end of the crystal oscillator receives a reference signal, the output end of the crystal oscillator is sequentially connected with the X-band frequency synthesizer, the amplifier, the frequency doubler and the band-pass filter, and the output end of the band-pass filter outputs a millimeter wave frequency hopping phase-locked signal; and the power supply module is respectively connected with the crystal oscillator, the X-band frequency synthesizer, the amplifier and the frequency doubler. The utility model discloses small, light in weight, frequency resolution are high, the output frequency point is many.

Description

Millimeter wave frequency hopping phase-locked module

Technical Field

The utility model belongs to millimeter wave short distance wireless communication field relates to a millimeter wave frequency hopping phase-locked module.

Background

The phase-locked loop is a negative feedback control system which utilizes voltage generated by phase synchronization to tune a voltage-controlled oscillator to generate target frequency, and utilizes an externally input reference signal to control the frequency and the phase of an internal oscillation signal of the loop, so as to realize automatic tracking of the frequency of an output signal to the frequency of an input signal.

Phase locked loops were originally used to improve the synchronization and frame synchronization of television receivers to improve interference rejection. With the advance of technology, phase-locked loops are used in space technology for tracking, telemetry and remote control of space flight targets. The applications in the digital communication technology are more and more extensive, such as extracting carrier signals, establishing bit synchronization and the like, and the applications also play an important role in instruments and meters such as frequency synthesizers, phasers and the like.

The existing phase-locked source module has the advantages of large volume, heavy mass, high cost, low frequency resolution and few output frequency points. The millimeter wave frequency hopping phase module is small in size, light in weight, high in frequency resolution and multiple in output frequency points, and the problem of an existing phase-locked source is solved.

It is noted that this section is intended to provide a background or context to the embodiments of the invention that are recited in the claims. The description herein is not admitted to be prior art by inclusion in this section.

SUMMERY OF THE UTILITY MODEL

Not enough to above-mentioned prior art, the utility model aims to provide a millimeter wave frequency hopping phase-locked module has realized that frequency resolution is high and the output frequency point is many.

In order to realize the purpose, the utility model adopts the following technical scheme:

the millimeter wave frequency hopping phase-locked module comprises a crystal oscillator for providing a reference clock signal, an X-band frequency synthesizer for performing phase locking on an external reference signal and the reference clock signal, an amplifier for amplifying the signal, a frequency doubler for doubling the frequency of the signal, a band-pass filter for filtering the signal and a power supply module for providing electric energy;

the input end of the crystal oscillator receives a reference signal, the output end of the crystal oscillator is sequentially connected with the X-band frequency synthesizer, the amplifier, the frequency doubler and the band-pass filter, and the output end of the band-pass filter outputs a millimeter wave frequency hopping phase-locked signal;

and the power supply module is respectively connected with the crystal oscillator, the X-band frequency synthesizer, the amplifier and the frequency doubler.

Furthermore, the crystal oscillator adopts a phase-locked crystal oscillator SM 100-LPN.

Further, the X-band frequency synthesizer adopts a TFS14-15 frequency synthesizer.

Further, the output frequency of the TFS14-15 frequency synthesizer is 200MHz-15GHz, and the volume is 38mm 10 mm.

Further, the amplifier adopts a power amplifier.

Further, the working frequency of the power amplifier is 5-20 GHz.

Further, the frequency doubler adopts an X2 active broadband frequency doubler.

The utility model has the advantages that:

1. the utility model discloses a millimeter wave frequency hopping phase-locked module, small, light in weight, frequency resolution are high, the output frequency point is many.

2. The utility model discloses a millimeter wave frequency hopping phase-locked module, through the phase-locked function of software control frequency synthesizer, can track a plurality of frequency points simultaneously.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic diagram of the amplifier of the present invention;

fig. 3 is a working schematic diagram of the frequency doubler of the present invention;

fig. 4 is a working schematic diagram of the power module of the present invention.

In the figure: 1-crystal oscillator; 2-X band frequency synthesizer; 3-an amplifier; 4-a frequency doubler; 5-a band-pass filter; 6-power supply module.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Furthermore, the drawings are merely schematic illustrations of embodiments of the invention, which are not necessarily drawn to scale. The same reference numerals in the drawings denote the same or similar parts, and thus their repetitive description will be omitted. Some of the block diagrams shown in the figures are functional entities and do not necessarily correspond to physically or logically separate entities.

The millimeter wave frequency hopping phase-locked module shown in fig. 1 includes a crystal oscillator 1 for providing a reference clock signal, an X-band frequency synthesizer 2 for phase-locking an external reference signal with the reference clock signal, an amplifier 3 for amplifying the signal, a frequency doubler 4 for frequency doubling the signal, a band-pass filter 5 for filtering the signal, and a power module 6 for providing power.

The input end of the crystal oscillator 1 receives a reference signal, the output end of the crystal oscillator 1 is sequentially connected with an X-band frequency synthesizer 2, an amplifier 3, a frequency doubler 4 and a band-pass filter 5, and the output end of the band-pass filter 5 outputs a millimeter wave frequency hopping phase-locked signal; the power module 6 is respectively connected with the crystal oscillator 1, the X-band frequency synthesizer 2, the amplifier 3 and the frequency doubler 4.

The working principle of the millimeter wave frequency hopping phase-locked module is as follows:

1. the millimeter wave frequency hopping phase-locked module inputs +12V voltage from the outside, the power module 6 supplies 12 power to the crystal oscillator 1, and two LT3022 respectively reduce the voltage to 5.5V and 3.3V, wherein the 3.3V voltage supplies power to the frequency synthesizer, and the 5.5V voltage supplies power to the voltage stabilizing circuit to generate two paths of 5.1V which respectively supply power to the amplifier and the X2 frequency multiplier.

2. The external reference signal and the reference clock signal of the crystal oscillator 1 are transmitted to the X-band frequency synthesizer 2 for phase locking.

3. The phase-locked reference signal with the clock is supplied to the amplifier 3 for signal amplification.

4. The amplified signal is input to an X2 frequency multiplier for frequency multiplication to generate a millimeter wave frequency hopping phase-locked signal with a clock.

5. The millimeter wave frequency hopping phase-locked signal is filtered by the band-pass filter 5, and the millimeter wave frequency hopping phase-locked signal is output after resolution is improved.

The millimeter wave frequency hopping phase-locked module has the following specific implementation modes of the components:

(1) an X-band frequency synthesizer 2; the X-band frequency synthesizer 2 is used as a phase-locked source to perform phase locking on an input reference clock and a reference signal and automatically track. The scheme adopts a frequency synthesizer with the model of TFS14-15, the output frequency is 200MHz-15GHz, and the volume is only 38mm 10 mm.

(2) A crystal oscillator 1; the reference clock is sent to an X wave band frequency synthesizer 2 after passing through a crystal oscillator 1, and a phase-locked crystal oscillator SM100-LPN is selected as the scheme.

(3) An amplifier 3; the millimeter wave phase-locked signal is amplified by the amplifier 3 and then transmitted. The amplifier 3 is a medium power amplifier with a working frequency of 5-20GHz and a gain of 22dB, and the working principle is shown in figure 2.

(4) A frequency doubler 4; the amplified millimeter wave phase-locked signal is multiplied by the frequency doubler 4 and then transmitted. The frequency multiplier is an X2 active broadband frequency multiplier, and can provide +17dBm of typical output power in the range of 18 to 29 GHz. The operation principle of HMC576LC3B is shown in fig. 3.

(5) A band-pass filter 5; and the frequency-doubled millimeter wave phase-locked signal is filtered by the band-pass filter 5 and then is sent out. According to the technical requirements, the band-pass filter 5 can pass signals with the center frequency of 23.5GHz and the bandwidth of 3 GHz.

(6) A power supply module 6; the voltage reduction circuit in the power module 6 is implemented by a low dropout linear regulator LT 3022. The device can provide output current as high as 1A and typical differential voltage of 145mV by adopting a single-input working power supply with the voltage as low as 0.9V, and can provide electric efficiency equivalent to that of a switching regulator, and the working principle of the device is shown in figure 4.

(7) The scheme selects the linear voltage stabilizer REG113-5 to generate 5V voltage to supply power to the amplifier, has low noise and low voltage drop, can provide 400mA current, and meets the power supply use of the selected amplifier.

(8) The linear voltage regulator LP2985-5 is selected to provide power for the frequency multiplier, the device can provide 150mA current, and the LDO is a LDO with micro power consumption, low noise and low voltage drop, and completely meets the requirements of the technical scheme.

(9) The modules of the millimeter wave frequency hopping phase-locked module are connected through a 50-ohm microstrip line, wherein transmission materials used between the amplifier 3 and the frequency multiplier, transmission materials used between the frequency multiplier and the filter, transmission materials used between the filter and the output interface are RT5880 and the thickness of 0.254mm, the line width is calculated to be 0.76mm according to a characteristic impedance calculation formula, transmission materials used between the reference signal and the crystal oscillator 1, transmission materials used between the crystal oscillator 1 and the frequency synthesizer are FR4 and the thickness of 1mm, and the line width is calculated to be 1.2mm according to a characteristic impedance calculation formula. The characteristic impedance calculation formula is as follows:

z ═ 87/[ sqrt (Er +1.41) ] } ln [5.98H/(0.8W + T) ], where W is the line width, T is the copper skin thickness of the trace, H is the distance from the trace to the reference plane, and Er is the dielectric constant of the board of the PCB.

Other embodiments of the invention will be apparent to those skilled in the art from consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the invention being indicated by the following claims.

Claims

1. A millimeter wave frequency hopping phase-locked module is characterized in that: the frequency synthesizer comprises a crystal oscillator (1) for providing a reference clock signal, an X-band frequency synthesizer (2) for performing phase locking on an external reference signal and the reference clock signal, an amplifier (3) for amplifying the signal, a frequency doubler (4) for doubling the frequency of the signal, a band-pass filter (5) for filtering the signal and a power supply module (6) for providing electric energy;

the input end of the crystal oscillator (1) receives a reference signal, the output end of the crystal oscillator (1) is sequentially connected with the X-band frequency synthesizer (2), the amplifier (3), the frequency doubler (4) and the band-pass filter (5), and the output end of the band-pass filter (5) outputs a millimeter wave frequency hopping phase-locked signal;

the power module (6) is respectively connected with the crystal oscillator (1), the X-band frequency synthesizer (2), the amplifier (3) and the frequency doubler (4).

2. The millimeter wave frequency hopping phase-locked module according to claim 1, wherein: the crystal oscillator (1) adopts a phase-locked crystal oscillator SM 100-LPN.

3. The millimeter wave frequency hopping phase-locked module of claim 2, wherein: the X-band frequency synthesizer (2) adopts a TFS14-15 frequency synthesizer.

4. The millimeter wave frequency hopping phase-locked module of claim 3, wherein: the output frequency of the TFS14-15 frequency synthesizer is 200MHz-15GHz, and the volume is 38mm 10 mm.

5. The millimeter wave frequency hopping phase-locked module of claim 4, wherein: the amplifier (3) adopts a power amplifier.

6. The millimeter wave frequency hopping phase-locked module of claim 5, wherein: the working frequency of the power amplifier is 5-20 GHz.

7. The millimeter wave frequency hopping phase-locked module of claim 6, wherein: the frequency doubler (4) adopts an X2 active broadband frequency doubler.