Radar fuze device
By using a miniaturized radar fuze device and a triangular wave ranging and velocity measurement method, the problems of large radar fuze size, high power consumption, and low accuracy have been solved, achieving accurate target detection and maximum kill effect.
Patent Information
- Application Number
- CN202520010292.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-03
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2035-01-03
AI Technical Summary
Existing radar fuses are large in size, consume a lot of power, and have low accuracy, which prevents artillery shells from achieving their maximum destructive effect.
It adopts a miniaturized radar fuze device, integrating a power supply module, power processor, 50MHz reference module, Ka-band target detection transceiver module, receiving antenna, transmitting antenna and ARM processor. It uses triangular wave ranging and velocity measurement method to achieve accurate target detection, and integrates Ka-band target detection transceiver module on silicon-based CMOS process.
It achieves precise target distance and velocity measurement, is small in size and low in power consumption, and can detonate when set conditions are met to achieve maximum destructive effect.
Smart Images
Figure CN223580805U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of fuze technology, specifically relating to radar fuze devices. Background Technology
[0002] Modern fuze technology, especially fuzes integrating radar ranging and velocity measurement functions, plays a crucial role in many military applications. Its main applications include artillery shells, missiles, air defense weapons, landmines, and naval mines.
[0003] Currently, commonly used fuses include mechanical, electronic, radar, infrared, laser, magnetic field, acoustic, and composite fuses. Mechanical fuses mainly utilize impact and inertial characteristics to detonate; electronic fuses mainly utilize electronic timing devices; radar fuses utilize the precise ranging and velocity measurement characteristics of radar to detonate; infrared fuses utilize the thermal radiation characteristics of the target to detonate; laser fuses use laser ranging technology to detect the presence of targets within a certain range and detonate; magnetic field fuses detonate by detecting changes in the target's magnetic field; and acoustic fuses rely on the sound or acoustic wave characteristics generated by the target to activate and detonate.
[0004] Existing radar fuses suffer from drawbacks such as large size, high power consumption, and low accuracy, preventing projectiles from achieving maximum lethality. Utility Model Content
[0005] This invention addresses the problems of large size, high power consumption, and low accuracy of existing radar fuses by providing a novel radar fuse device. When used, a corresponding program is loaded, enabling the radar fuse to detonate when it detects a target at a set distance and speed, achieving airburst or proximity detonation for maximum lethality.
[0006] A radar fuze device includes a power supply module, a power processor, a 50MHz reference module, a Ka-band target detection and transceiver module, a receiving antenna, a transmitting antenna, and an ARM processor; the power supply module is connected to the power processor; the power processor is connected to the 50MHz reference module, the Ka-band target detection and transceiver module, and the ARM processor respectively; the 50MHz reference module is connected to the Ka-band target detection and transceiver module; the Ka-band target detection and transceiver module is connected to the receiving antenna, the transmitting antenna, and the ARM processor respectively.
[0007] In one embodiment, a test interface is also included, which is connected to the ARM processor.
[0008] In one embodiment, the Ka-band target detection transceiver module includes a receiving module, a transmitting module, a local oscillator module, and a phase-locked loop module; the local oscillator module is connected to the receiving module, the transmitting module, and the phase-locked loop module, respectively.
[0009] In one embodiment, the receiving module includes a low noise amplifier, a low noise transimpedance amplifier, a mixer driver, a mixer, a transimpedance amplifier, a high pass filter, a low pass filter, an intermediate frequency variable gain amplifier, a first pulse modulation switch, a second pulse modulation switch, a third pulse modulation switch, a fourth pulse modulation switch, a fifth pulse modulation switch, and a sixth pulse modulation switch.
[0010] The receiving antenna is connected to the input end of the low noise amplifier, the output end of the low noise amplifier is connected to the low noise transimpedance amplifier, the output end of the low noise transimpedance amplifier is connected to the mixer, the mixer is respectively connected to the output end of the mixer driver and the input end of the transimpedance amplifier, the input end of the mixer driver is connected to the local oscillator module, the output end of the transimpedance amplifier is respectively connected to one end of the fifth pulse modulation switch and one end of the sixth pulse modulation switch, the other end of the sixth pulse modulation switch is connected to the ARM processor, the other end of the fifth pulse modulation switch is connected to the high pass filter, the high pass filter is connected to the low pass filter, the fourth pulse modulation switch is connected in parallel with the high pass filter, the third pulse modulation switch is connected in parallel with the low pass filter and connected to one end of the second pulse modulation switch, the other end of the second pulse modulation switch is respectively connected to one end of the first pulse modulation switch and the input end of the intermediate frequency variable gain amplifier, the other end of the first pulse modulation switch is connected to the ARM processor, and the output end of the intermediate frequency variable gain amplifier is connected to the ARM processor.
[0011] In one embodiment, the local oscillator module includes a voltage controlled oscillator, a first local oscillator driver, a second local oscillator driver, a third local oscillator driver, a BPSK modulator, a seventh pulse modulation switch, and an eighth pulse modulation switch.
[0012] The phase-locked loop module is connected to the voltage controlled oscillator, the voltage controlled oscillator is respectively connected to the phase-locked loop module and the input end of the first local oscillator driver, the output end of the first local oscillator driver is respectively connected to the input end of the second local oscillator driver and the input end of the third local oscillator driver, the output end of the second local oscillator driver is connected to the input end of the mixer driver through the seventh pulse modulation switch; the output end of the third local oscillator driver is connected to the BPSK modulator, the BPSK modulator is respectively connected to the ARM processor and one end of the eighth pulse modulation switch, and the other end of the eighth pulse modulation switch is connected to the transmitting module.
[0013] In one embodiment, the transmitting module includes a power amplifier; the input end of the power amplifier is connected to the local oscillator module, and the output end of the power amplifier is connected to the transmitting antenna.
[0014] In one embodiment, the phase-locked loop module includes an integer frequency divider, a fractional frequency divider, a phase discriminator, a current amplifier, a reference signal amplifier, a reference clock input port, a reference frequency divider, a loop filter, a pulse signal generator, and a triangular wave signal generator.
[0015] The local oscillator module is connected with an integer frequency divider and a loop filter respectively, the integer frequency divider is connected with a phase discriminator in series through a fractional frequency divider, the phase discriminator is connected with a reference frequency divider, a triangular wave signal generator and a charge pump respectively, the reference frequency divider is connected with an output end of a reference signal amplifier, a reference clock input port is connected with an input end of the reference signal amplifier, the triangular wave signal generator is connected with a pulse signal generator, the charge pump is connected with an input end of a current amplifier, and an output end of the current amplifier is connected with the loop filter.
[0016] In one embodiment, the Ka-band target detection transceiver module is arranged on a chip of a silicon-based CMOS process.
[0017] The radar fuze device has the advantages that: when the corresponding program is loaded during use, the distance and speed of the target can be accurately measured by using the triangular wave distance and speed measurement method, the radar fuze device is detonated when the target reaches the set distance and speed, air explosion or near explosion is realized, and the maximum damage effect is achieved. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1 The radar fuze device circuit structure diagram in the embodiment 1 of the utility model.
[0019] Figure 2 The radar fuze device receiving module circuit diagram in the embodiment 1 of the utility model.
[0020] Figure 3 The local oscillator module circuit diagram in the embodiment 1 of the utility model.
[0021] Figure 4 The phase-locked loop module specific circuit diagram in the embodiment 1 of the utility model.
[0022] Figure 5 The Ka-band target detection transceiver chip circuit diagram in the embodiment 2 of the utility model. DETAILED DESCRIPTION
[0023] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below in combination with the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.
[0024] Embodiment 1
[0025] As Figure 1As shown, in this case, a radar fuze device is provided, including a power supply module, a power supply processor, a 50MHz reference module, a Ka-band target detection transceiver module, a receiving antenna, a transmitting antenna and an ARM processor; the power supply module is connected with the power supply processor; the power supply processor is connected with the 50MHz reference module, the Ka-band target detection transceiver module and the ARM processor respectively; the 50MHz reference module is connected with the Ka-band target detection transceiver module; the Ka-band target detection transceiver module is connected with the receiving antenna, the transmitting antenna and the ARM processor respectively. It also includes a test interface, which is connected with the ARM processor.
[0026] The ARM processor mainly samples the intermediate frequency signal of the Ka-band target detection transceiver module, and performs FFT operation and target distance and speed calculation. The 50MHz reference module mainly provides clock and phase-locked loop reference signal for the Ka-band target detection transceiver module. The power supply module mainly converts external 5.3V voltage signal into internal 3.3V and 1.1V voltage for internal use.
[0027] Among them, the Ka-band target detection transceiver module is the core component of the radar fuze device. The Ka-band target detection transceiver module includes a receiving module, a transmitting module, a local oscillator module and a phase-locked loop module; the local oscillator module is connected with the receiving module, the transmitting module and the phase-locked loop module respectively.
[0028] Among them, the receiving module is as shown in Figure 2 It includes a low-noise amplifier LNA, a low-noise transimpedance amplifier LNTA, a mixer driver MIXBUF, a mixer MIX, a transimpedance amplifier TIA, a high-pass filter HPF, a low-pass filter LPF, an intermediate frequency variable gain amplifier VGA, a first pulse modulation switch S1, a second pulse modulation switch S2, a third pulse modulation switch S3, a fourth pulse modulation switch S4, a fifth pulse modulation switch S5 and a sixth pulse modulation switch S6.
[0029] The receiving antenna is connected with the input end of the low noise amplifier LNA, the output end of the low noise amplifier LNA is connected with the low noise transconductance amplifier LNTA, the output end of the low noise transconductance amplifier TIALNTA is connected with the mixer MIX, the mixer MIX is connected with the output end of the mixer driver MIXBUF and the input end of the transimpedance amplifier TIA respectively, the input end of the mixer driver MIXBUF is connected with the local oscillator module, the output end of the transimpedance amplifier TIA is connected with one end of the fifth pulse modulation switch S5 and one end of the sixth pulse modulation switch S6 respectively, the other end of the sixth pulse modulation switch S6 is connected with the ARM processor (not shown in the figure), the other end of the fifth pulse modulation switch S5 is connected with the high-pass filter HPF, the high-pass filter HPF is connected with the low-pass filter LPF, the fourth pulse modulation switch S4 is connected with the high-pass filter HPF in parallel, the third pulse modulation switch S3 is connected with the low-pass filter LPF in parallel and then connected with one end of the second pulse modulation switch S2, the other end of the second pulse modulation switch S2 is connected with one end of the first pulse modulation switch S1 and the input end of the intermediate frequency variable gain amplifier VGA respectively, the other end of the first pulse modulation switch S1 is connected with the ARM processor (not shown in the figure), the output end of the intermediate frequency variable gain amplifier is connected with the ARM processor (not shown in the figure).
[0030] The local oscillator module, as shown in the figure, comprises a voltage-controlled oscillator VCO, a first local oscillator driver LOBUF1, a second local oscillator driver LOBUF2, a third local oscillator driver LOBUF3, a BPSK modulator BPSK, a seventh pulse modulation switch S7 and an eighth pulse modulation switch S8. Figure 3
[0031] The phase-locked loop module is connected with the voltage-controlled oscillator VCO, the voltage-controlled oscillator VCO is connected with the phase-locked loop module and the input end of the first local oscillator driver LOBUF1 respectively, the output end of the first local oscillator driver LOBUF1 is connected with the input end of the second local oscillator driver LOBUF2 and the input end of the third local oscillator driver LOBUF3 respectively, the output end of the second local oscillator driver LOBUF2 is connected with the input end of the mixer driver through the seventh pulse modulation switch S7, the output end of the third local oscillator driver LOBUF3 is connected with the BPSK modulator BPSK, the BPSK modulator BPSK is connected with the ARM processor (not shown in the figure) and one end of the eighth pulse modulation switch S8 respectively, the other end of the eighth pulse modulation switch S8 is connected with the transmitting module (not shown in the figure). The seventh pulse modulation switch S7 is a receiving pulse modulation switch RXSW. The eighth pulse modulation switch S8 is a transmitting pulse modulation switch TXSW.
[0032] The transmitting module comprises a power amplifier, the input end of the power amplifier is connected with the local oscillator module, and the output end of the power amplifier is connected with the transmitting antenna.
[0033] The phase-locked loop module, as shown in the figure, comprises a voltage-controlled oscillator VCO, a first local oscillator driver LOBUF1, a second local oscillator driver LOBUF2, a third local oscillator driver LOBUF3, a BPSK modulator BPSK, a seventh pulse modulation switch S7 and an eighth pulse modulation switch S8.Figure 4 integer frequency divider, fractional frequency divider, phase detector, current amplifier, reference signal amplifier, reference clock input port, reference frequency divider, loop filter, pulse signal generator, triangular wave signal generator;
[0034] The local oscillator module is connected with the integer frequency divider and the loop filter respectively, the integer frequency divider is connected with the fractional frequency divider and the phase detector in series, the phase detector is connected with the reference frequency divider, the triangular wave signal generator and the charge pump respectively, the reference frequency divider is connected with the output end of the reference signal amplifier, the reference clock input port is connected with the input end of the reference signal amplifier, the triangular wave signal generator is connected with the pulse signal generator, the charge pump is connected with the input end of the current amplifier, and the output end of the current amplifier is connected with the loop filter.
[0035] The phase detector is responsible for comparing the phase difference of the input signal and the VCO output signal, and converting the phase difference into a voltage signal (error signal). The loop filter is responsible for filtering out high frequency components in the error signal, smoothing the output, and forming a control voltage for the VCO. It is usually a simple RC filter or a more complex filter design. The voltage controlled oscillator VCO adjusts the frequency and phase of its output signal according to the control voltage output by the loop filter to eliminate the phase difference with the reference signal.
[0036] In this example, the triangular wave signal generator generates a triangular wave according to the pulse signal generated by the pulse signal generator. After loading the corresponding computer program, the radar fuze device of this example can realize target judgment by radar using the triangular wave ranging and velocity measurement method. When the radar fuze detects that the target reaches the set distance and speed, it explodes to realize air burst or near burst, achieving maximum killing effect. Instead of using sawtooth waves, triangular waves are used because the harmonic components of triangular waves are relatively small compared to sawtooth waves, which can reduce the sidelobe interference in the frequency spectrum and improve the detection resolution. Triangular waves have better continuity than sawtooth waves in terms of phase change, which can improve the target detection sensitivity in signal coherent demodulation. Triangular waves can also be used for pulse compression by their smooth frequency change, improving the signal-to-noise ratio of the received signal, thereby further improving the target detection resolution. In terms of hardware implementation, triangular waves have better compatibility with traditional frequency modulation technology and are easier to integrate into existing radar systems. However, more distortion and noise may be introduced in the hardware that generates sawtooth waves, increasing the complexity of signal processing.
[0037] The first pulse modulation switch, the second pulse modulation switch, the third pulse modulation switch, the fourth pulse modulation switch, the fifth pulse modulation switch, the sixth pulse modulation switch, the seventh pulse modulation switch, the eighth pulse modulation switch, the triangular wave generation circuit chirp gen, the low noise trans-impedance amplifier LNTA and the power amplifier PA are electrically connected with the pulse control module (not shown in the figure). Configurable pulse signals are transmitted to the first pulse modulation switch, the second pulse modulation switch, the third pulse modulation switch, the fourth pulse modulation switch, the fifth pulse modulation switch, the sixth pulse modulation switch, the seventh pulse modulation switch, the eighth pulse modulation switch, the low noise trans-impedance amplifier LNTA and the power amplifier PA according to the pulse control module. The low noise trans-impedance amplifier and the power amplifier PA can switch according to the received configurable pulse signals. When the pulse is high, the signal is allowed to pass through. When the pulse is low, the signal is blocked. The first pulse modulation switch, the second pulse modulation switch, the third pulse modulation switch, the fourth pulse modulation switch, the fifth pulse modulation switch, the sixth pulse modulation switch, the seventh pulse modulation switch, the eighth pulse modulation switch realize their own closing or opening according to the configuration pulse information.
[0038] All devices are given priority to localization when designing the product. The ARM processor can use the HC32F452FEUB processor of Xiaohua Semiconductor Co., Ltd. The power processor can use the SGM2048 of Shengbang Microelectronics. The 5.3V input voltage can be converted into 3.3V and 1.1V voltages for internal devices.
[0039] Embodiment 2
[0040] In order to reduce the volume of the radar fuze device and reduce the power consumption, the Ka-band target detection transceiver module circuit provided in Embodiment 1 is integrated on a chip based on a silicon CMOS process as a Ka-band target detection transceiver chip in this example.
[0041] Embodiment 3
[0042] On the basis of Embodiment 2, the loop filter, the current amplifier and the charge pump circuit in the Ka-band target detection transceiver module circuit are arranged on the peripheral circuit of the chip, and other circuits are integrated on the chip. The circuit principle structure is unchanged, and the chip structure and pin setting are as follows Figure 5The phase-locked loop (PLL) is shown in the figure (wherein the phase-locked loop PLL, the chirp generator and the pulse signal generator PULSE CTRL constitute a phase-locked loop module). The loop filter, the current amplifier and the charge pump are connected to the chip through the chip pins VT and the pin pins CP respectively. The chip can support three working modes of pulse modulation, FMCW modulation and BPSK modulation. The configuration interface SPI is also provided on the chip, and the configuration pins are SPI_ENB, SPI_CLK, SPI_DI and SPI_DO.
[0043] When the radar fuze device as described in Embodiment 1 is manufactured using the Ka-band target detection transceiver chip of the present example, the receiving antenna is connected to the low-noise amplifier input end through the signal input port RXI. The other end of the sixth pulse modulation switch is connected to the intermediate frequency VGA differential output port IF_N and IF_P. The output end of the intermediate frequency variable gain amplifier is connected to the ARM processor through the intermediate frequency variable gain amplifier differential input control port VGA_IP and VGA_IN. The transimpedance amplifier TIA is connected to the ARM processor through the transimpedance amplifier control port (TIA_ON, TIA_OP).
[0044] The power supply processor processes the voltage provided by the power supply module and then supplies power to the chip inside through the chip pins VDD12_TX, VDD12_RXLO, VDD12_RXIF, VDD12_RXIF1, VDD12_RXIF2, VDD12_VCO_BPSK, VDD33_PLL, VDD33_SPI, VDD12_PLL_SPI.
[0045] The pulse signal generator PULSE CTRL configures the pulse signal through the pin TX_PULSE, the pin RX_PULSE and the pin TRIG_SYNC, and transmits it to the first pulse modulation switch, the second pulse modulation switch, the third pulse modulation switch, the fourth pulse modulation switch, the fifth pulse modulation switch, the sixth pulse modulation switch, the seventh pulse modulation switch, the eighth pulse modulation switch, the low-noise transimpedance amplifier LNTA, the power amplifier PA and the chirp generator.
[0046] In use, the ARM processor mainly samples the intermediate frequency signal of the transceiver chip, and performs FFT operation and target distance and speed calculation. The internal clock of the processor runs at 200MHz, which can ensure that the time control of a frame of data from collection to calculation of output results is within 600us. The processor also communicates with the outside through a serial port, which can monitor and debug the radar signal processing process. The 50MHz reference signal mainly provides a clock and a phase-locked loop reference signal for the transceiver chip. The phase-locked loop reference signal is transmitted to the reference clock input port through the chip pin REF_CLK pin.
[0047] In actual use, according to the frequency characteristics and working mode of the Ka-band target detection transceiver chip, the sweep frequency is set to 34.2GHz-34.75GHz, the bandwidth is set to 550MHz, the center frequency is 34.475GHz, the sweep time rising edge and falling edge are both 150us, the sampling rate S is 2MHz, the sampling point number rising edge and falling edge are 256 points respectively, the ARM processor is used for data processing, and finally the position corresponding to the maximum power spectrum line can be found according to the FFT results of the rising edge and the falling edge to calculate the target distance and speed.
[0048] The above-described embodiments only express several implementation manners of the present application, the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be pointed out that for ordinary skilled persons in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.
Claims
1. A radar fuze device, characterized by It includes power supply module, power supply processor, 50MHz reference module, Ka band target detection transceiver module, receiving antenna, transmitting antenna and ARM processor; the power supply module is connected with the power supply processor; The power supply processor is connected with the 50MHz reference module, the Ka band target detection transceiver module and the ARM processor respectively; the 50MHz reference module is connected with the Ka band target detection transceiver module; the Ka band target detection transceiver module is connected with the receiving antenna, the transmitting antenna and the ARM processor respectively.
2. A radar fuze device according to claim 1, characterised in that It also includes test interface, which is connected with the ARM processor.
3. A radar fuze device according to claim 1 or 2, characterised in that The Ka band target detection transceiver module includes receiving module, transmitting module, local oscillator module and phase-locked loop module; the local oscillator module is connected with the receiving module, the transmitting module and the phase-locked loop module respectively.
4. A radar fuze apparatus according to claim 3, wherein The receiving module includes low noise amplifier, low noise transimpedance amplifier, mixer driver, mixer, transimpedance amplifier, high pass filter, low pass filter, intermediate frequency variable gain amplifier, first pulse modulation switch, second pulse modulation switch, third pulse modulation switch, fourth pulse modulation switch, fifth pulse modulation switch and sixth pulse modulation switch; The receiving antenna is connected with the input end of the low noise amplifier; the output end of the low noise amplifier is connected with the low noise transimpedance amplifier; the output end of the low noise transimpedance amplifier is connected with the mixer; the mixer is connected with the output end of the mixer driver and the input end of the transimpedance amplifier respectively; the input end of the mixer driver is connected with the local oscillator module; the output end of the transimpedance amplifier is connected with one end of the fifth pulse modulation switch and one end of the sixth pulse modulation switch respectively; the other end of the sixth pulse modulation switch is connected with the ARM processor; the other end of the fifth pulse modulation switch is connected with the high pass filter; the high pass filter is connected with the low pass filter; the fourth pulse modulation switch is connected with the high pass filter in parallel; the third pulse modulation switch is connected with the low pass filter in parallel and then connected with one end of the second pulse modulation switch; the other end of the second pulse modulation switch is connected with one end of the first pulse modulation switch and the input end of the intermediate frequency variable gain amplifier respectively; the other end of the first pulse modulation switch is connected with the ARM processor; the output end of the intermediate frequency variable gain amplifier is connected with the ARM processor.
5. A radar fuze apparatus according to claim 4, wherein The local oscillator module includes voltage controlled oscillator, first local oscillator driver, second local oscillator driver, third local oscillator driver, BPSK modulator, seventh pulse modulation switch and eighth pulse modulation switch; The phase-locked loop module is connected with the voltage controlled oscillator; the voltage controlled oscillator is connected with the phase-locked loop module and the input end of the first local oscillator driver respectively; the output end of the first local oscillator driver is connected with the input end of the second local oscillator driver and the input end of the third local oscillator driver respectively; the output end of the second local oscillator driver is connected with the input end of the mixer driver through the seventh pulse modulation switch; the output end of the third local oscillator driver is connected with the BPSK modulator; the BPSK modulator is connected with the ARM processor and one end of the eighth pulse modulation switch respectively; the other end of the eighth pulse modulation switch is connected with the transmitting module.
6. A radar fuze apparatus according to claim 5, wherein The transmitting module includes power amplifier; the input end of the power amplifier is connected with the local oscillator module; the output end of the power amplifier is connected with the transmitting antenna.
7. A radar fuze apparatus according to claim 6, wherein The phase-locked loop module comprises an integer frequency divider, a fractional frequency divider, a phase discriminator, a current amplifier, a reference signal amplifier, a reference clock input port, a reference frequency divider, a loop filter, a pulse signal generator and a triangular wave signal generator. The local oscillator module is connected with the integer frequency divider and the loop filter respectively, the integer frequency divider is connected with the fractional frequency divider and the phase discriminator in series, the phase discriminator is connected with the reference frequency divider, the triangular wave signal generator and the charge pump respectively, the reference frequency divider is connected with the output end of the reference signal amplifier, the reference clock input port is connected with the input end of the reference signal amplifier, the triangular wave signal generator is connected with the pulse signal generator, the charge pump is connected with the input end of the current amplifier, and the output end of the current amplifier is connected with the loop filter.
8. A radar fuze apparatus according to claim 7, wherein The Ka wave band target detection transceiver module is arranged on a chip of a silicon-based CMOS process.