CN208063172U

CN208063172U - Ka band sources

Info

Publication number: CN208063172U
Application number: CN201821222157.9U
Authority: CN
Inventors: 赵小松; 梁国林
Original assignee: Sichuan Zhongwei E-Trend Technology Co Ltd
Current assignee: Sichuan Zhongwei E-Trend Technology Co Ltd
Priority date: 2018-07-31
Filing date: 2018-07-31
Publication date: 2018-11-06
Anticipated expiration: 2028-07-31

Abstract

The utility model discloses Ka band sources, including：Low-pass filter, phase discriminator, the microcontroller for being controlled phase-lock section in phase discriminator, the first RF switch, filter, fundamental frequency amplifiers, the second RF switch, Ka wave bands frequency multiplier, microstrip coupler, millimeter wave filter, 100MHz reference frequencies enter phase discriminator after low-pass filter, the control signal output of microcontroller and the control signal input of phase discriminator connect, and phase discriminator, the first RF switch, filter, fundamental frequency amplifiers, the second RF switch, Ka wave bands frequency multiplier, microstrip coupler, millimeter wave filter are sequentially connected in series.The utility model obtains output signal using locking phase and frequency doubling technology, have the characteristics that integrated level is high, stability is high, it is small, mutually make an uproar it is low, spuious low, light-weight.

Description

Ka band sources

Technical field

The utility model belongs to RF communication system technical field, and in particular to Ka band sources.

Background technology

High performance frequency source is the core for modernizing radio frequency, the electronic equipments such as communication, be all microwave systems (such as radar, Communication, navigation etc.) element.With the development of the electronic technology such as radio communication, the problem of miniaturization increasingly To concern, and the miniaturization of frequency source is the key point of entire RF communication system miniaturization.

Currently, the realization of Ka band sources mainly uses frequency multiplication method and harmonic mixing method to realize that the former is difficult to take into account low phase Noise and clutter recognition；Then though phase noise is good by the latter, the clutter that when harmonic mixing generates be difficult inhibit, and volume compared with Greatly, it is difficult to meet the demand for development of miniaturization.

We has developed a kind of novel Ka band sources in order to solve problem above.

Invention content

The purpose of this utility model is that solve the above-mentioned problems and provides a kind of Ka band sources.

The utility model is achieved through the following technical solutions above-mentioned purpose：

Ka band sources, including：Low-pass filter, phase discriminator, the monolithic for being controlled phase-lock section in phase discriminator Machine, the first RF switch, filter, fundamental frequency amplifiers, the second RF switch, Ka wave bands frequency multiplier, microstrip coupler, millimeter wave Filter, 100MHz reference frequencies enter phase discriminator, the control signal output and phase demodulation of microcontroller after low-pass filter The control signal input of device connects, phase discriminator, the first RF switch, filter, fundamental frequency amplifiers, the second RF switch, Ka Wave band frequency multiplier, microstrip coupler, millimeter wave filter are sequentially connected in series.

Output signal is obtained using locking phase and frequency doubling technology, have integrated level is high, stability is high, it is small, mutually make an uproar it is low, Spuious low, light-weight feature.

Specifically, Ka band sources further include connecting and being used to pick out two pole of detection of low frequency signal with microstrip coupler Pipe.

The beneficial effects of the utility model are：

The Ka band sources of the utility model：A millimeter signal output is realized using locking phase+frequency multiplication mode, there is output signal phase The advantages such as position noise is good, clutter recognition is high.

Description of the drawings

Fig. 1 is the structure principle chart of the utility model；

Fig. 2 is the schematic diagram of application structure of the utility model.

In figure：1,100MHz reference frequencies；2, low-pass filter；3, phase discriminator；4, microcontroller；5, the first RF switch； 6, filter；7, fundamental frequency amplifiers；8, the second RF switch；9, Ka wave bands frequency multiplier；10, microstrip coupler；11, two pole of detection Pipe；12, millimeter wave filter.

Specific implementation mode

The utility model is described in further detail below in conjunction with the accompanying drawings：

As shown in Figure 1, Ka band sources, including：Low-pass filter 2, phase discriminator 3, for phase-lock section in phase discriminator 3 into Microcontroller 4, the first RF switch 5, filter 6, fundamental frequency amplifiers 7, the second RF switch 8, the Ka wave band frequency multipliers of row control 9, microstrip coupler 10, millimeter wave filter 12,100MHz reference frequencies 1 enter phase discriminator 3 after low-pass filter 2, single The control signal output of piece machine 4 is connect with the control signal input of phase discriminator 3, phase discriminator 3, the first RF switch 5, filtering Device 6, fundamental frequency amplifiers 7, the second RF switch 8, Ka wave bands frequency multiplier 9, microstrip coupler 10, millimeter wave filter 12 are gone here and there successively It connects.Ka band sources further include connecting with microstrip coupler 10 and being used to pick out the detector diode 11 of low frequency signal.

What is used in the present embodiment is：The low-pass filter 2 of model LFCN-80+；The phase demodulation of model LMX2595 Device 3；The microcontroller 4 of model C8051F300；The first RF switch 5 and the second RF switch 8 of model BW110；Filter 6 be 17.6GHz microstrip filters；The fundamental frequency amplifiers 7 of model BW576；The Ka wave bands frequency multiplier 9 of model HMC331；Type Number be CDF7621-000 detector diode 11；Millimeter wave filter 12 is 35.2GHz microstrip filters.

Operation principle：The Ka band sources of the utility model, 100MHz reference frequencies 1 enter mirror after low-pass filter 2 Phase device 3, microcontroller 4 complete the control to phase-lock section, realize high performance fundamental frequency signal output, the fundamental frequency signal that locking phase obtains Sequentially concatenate the first RF switch 5, filter 6, fundamental frequency amplifiers 7, the second RF switch 8, Ka wave bands frequency multiplier 9, micro-strip coupling After clutch 10, millimeter wave filter 12, the final millimeter-wave signal output realized high-performance and stablized.

As shown in Fig. 2, for the application of the utility model, the intermediate-freuqncy signal of input after being mixed with Ka band sources, send To the filter and amplification unit of rear class, then launch again through antenna.

The technical indicator that the utility model is mainly realized：

Input reference frequency：100MHz, input power >=0dBm；Phase noise≤- 150dBc/Hz@1KHz；

Ka band source output frequencies：35.2GHz, output power：0dBm±1dBm；Phase noise≤- 92dBc/Hz@ 10KHz；It is indicated with power, Transistor-Transistor Logic level, high level is to have power.

Clutter recognition：≥+60dBc；

Harmonics restraint：≥+45dBc；

Shutdown ratio：≥+60dBc；

Switching speed：≤100ns；

Power supply：+ 12V/≤500mA switchs control mode：Transistor-Transistor Logic level is connected when high, is turned off when low；

Volume (length × width × height)：68mm*68mm*15mm.

The basic principles and main features and advantage of the utility model have been shown and described above.The technical staff of the industry It should be appreciated that the present utility model is not limited to the above embodiments, the above embodiments and description only describe this The principle of utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model also has various change And improvement, these various changes and improvements fall within the scope of the claimed invention.The utility model requires protection scope It is defined by appending claims and equivalents.

Claims

1.Ka band sources, which is characterized in that including：Low-pass filter, phase discriminator, for being controlled to phase-lock section in phase discriminator It is the microcontroller of system, the first RF switch, filter, fundamental frequency amplifiers, the second RF switch, Ka wave bands frequency multiplier, microstrip coupled Device, millimeter wave filter, 100MHz reference frequencies enter phase discriminator after low-pass filter, and the control signal of microcontroller exports End is connect with the control signal input of phase discriminator, phase discriminator, the first RF switch, filter, fundamental frequency amplifiers, the second radio frequency Switch, Ka wave bands frequency multiplier, microstrip coupler, millimeter wave filter are sequentially connected in series.

2. Ka band sources according to claim 1, it is characterised in that：Ka band sources further include being connect simultaneously with microstrip coupler Detector diode for picking out low frequency signal.