CN211554071U - Active millimeter wave detector - Google Patents
Active millimeter wave detector Download PDFInfo
- Publication number
- CN211554071U CN211554071U CN201922234633.XU CN201922234633U CN211554071U CN 211554071 U CN211554071 U CN 211554071U CN 201922234633 U CN201922234633 U CN 201922234633U CN 211554071 U CN211554071 U CN 211554071U
- Authority
- CN
- China
- Prior art keywords
- wave detector
- millimeter wave
- microstrip
- waveguide
- amplifier
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000004888 barrier function Effects 0.000 claims abstract description 18
- 239000000523 sample Substances 0.000 claims description 13
- 239000003381 stabilizer Substances 0.000 claims description 11
- 230000005540 biological transmission Effects 0.000 claims description 9
- 239000003990 capacitor Substances 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 6
- 230000000087 stabilizing effect Effects 0.000 claims description 6
- 239000000758 substrate Substances 0.000 claims description 5
- 238000001514 detection method Methods 0.000 abstract description 6
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract description 6
- 230000035945 sensitivity Effects 0.000 abstract description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Abstract
The utility model discloses an active millimeter wave detector, including the tube-shape cavity, the one end of cavity is the input, and the other end is the output, is provided with waveguide-microstrip line converter on the input, is provided with SMA on the output and connects and supply contact, has connected gradually beam type lead wire schottky barrier diode and amplifier between waveguide-microstrip line converter and the SMA connect. The utility model discloses adopt beam type lead wire schottky barrier diode in the wave detector, utilize its nonlinear volt-ampere characteristic to convert and distinguish the voltage of ultrahigh frequency power envelope during the detection, improved the frequency response speed of wave detector greatly, improved its sensitivity simultaneously.
Description
Technical Field
The utility model belongs to the technical field of millimeter wave wireless communication, a active millimeter wave detector is related to.
Background
The wave detector is a device for generating direct current or low-frequency current and voltage by utilizing the nonlinear characteristics of certain solid-state devices to detect signal power, and the millimeter wave detector is a millimeter wave device for detecting amplitude-modulated microwave and millimeter wave signals.
The detector is one of conventional components in microwave and millimeter wave technologies, is a key component in microwave and millimeter wave signal detection, automatic gain control, power detection and amplitude stabilization application, is widely applied to millimeter wave systems such as testing instruments, power detection equipment and direct detection receivers, and is an essential device for ensuring the normal work of the millimeter wave systems.
In recent years, with the rapid development of modern wireless communication technology, higher requirements are also put forward on the sensitivity of the millimeter wave detector, but the existing millimeter wave detector has slower frequency response and reduced sensitivity, and the existing detector has a complex structure and larger size and is not beneficial to the development of the technology in the communication field.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an active millimeter wave detector has solved the problem that current millimeter wave detector sensitivity is low.
The utility model discloses the technical scheme who adopts is, an active millimeter wave detector, including the tube-shape cavity, the one end of cavity is the input, and the other end is the output, is provided with waveguide-microstrip line converter on the input, is provided with SMA on the output and connects and supply contact, has connected gradually beam lead schottky barrier diode and amplifier between waveguide-microstrip line converter and the SMA connects.
The utility model is also characterized in that,
the input end of the amplifier is connected with an isolation capacitor C1, and the output end of the amplifier is connected with an isolation capacitor C2.
And a load limiting resistor, a voltage stabilizer and a voltage stabilizing diode are sequentially connected between the beam lead Schottky barrier diode and the power supply contact, and the voltage stabilizer is connected with the amplifier through a wire.
The power supply contact is a 12V power supply contact.
The waveguide-microstrip line converter consists of a waveguide and a microstrip line, wherein the microstrip line comprises a dielectric substrate, a microstrip probe and a microstrip main transmission line, the microstrip probe and the microstrip main transmission line are connected through a high-impedance line, a hole is formed in the center of the wide edge of the waveguide, and the microstrip probe is embedded in the hole.
And grounding ends are arranged on the beam lead Schottky barrier diode, the amplifier and the voltage stabilizer.
The utility model has the advantages that the wave detector is formed by the beam lead Schottky barrier diode, the voltage of the ultrahigh frequency power envelope is converted and distinguished by utilizing the nonlinear volt-ampere characteristic during the wave detection, the frequency response speed of the wave detector is greatly improved, and the sensitivity of the wave detector is improved; the amplifier is adopted to expand the dynamic range of the detector and widen the frequency band; moreover, the millimeter wave detector of the utility model has simple structure, good mechanical property and small volume.
Drawings
Fig. 1 is a schematic structural diagram of an active millimeter wave detector according to the present invention;
fig. 2 is a schematic structural diagram of an input end of an active millimeter wave detector according to the present invention;
fig. 3 is a schematic structural diagram of an output end of the active millimeter wave detector of the present invention;
fig. 4 is a schematic circuit diagram of an active millimeter wave detector according to the present invention;
fig. 5 is a schematic structural diagram of a waveguide-microstrip line converter in the active millimeter wave detector of the present invention.
In the figure, 1, a beam lead Schottky barrier diode, 2, an amplifier, 3, an SMA connector, 4, a power supply contact, 5, a voltage stabilizing diode, 6, a voltage stabilizer, 8, a load limiting resistor, 9, a waveguide, 10, a microstrip probe, 11, a high-impedance line, 12, a microstrip main transmission line, 13, a dielectric substrate, 14, a cavity and 15, a waveguide-microstrip line converter.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
The utility model relates to an active millimeter wave detector, refer to fig. 1 and fig. 2, including tube-shape cavity 14, cavity 14 is the metal package cavity, and overall dimension is 19mm 48mm, and the one end of cavity 14 is the input, and the other end is the output, is provided with waveguide-microstrip line converter 15 on the input, is provided with SMA on the output and connects 3 and power supply contact 4, and power supply contact 4 is 12V power supply contact (see fig. 3), and waveguide-microstrip line converter 15 connects between 3 with SMA and has connected gradually beam type lead wire schottky barrier diode 1 and amplifier 2.
Referring to fig. 4, a load limiting resistor 8, a voltage stabilizer 6 and a voltage stabilizing diode 5 are sequentially connected between a beam lead schottky barrier diode 1 and a power supply contact 4, the voltage stabilizer 6 is connected with an amplifier 2 through a wire, the voltage stabilizing diode 5 is a common diode, and the model of the voltage stabilizer 6 is LM 7805. And grounding ends are arranged on the beam lead Schottky barrier diode 1, the amplifier 2 and the voltage stabilizer 6.
The power supply contact 4 provides electric energy for the beam lead Schottky barrier diode 1 and the amplifier 2, an electric signal provided by the power supply contact 4 is subjected to voltage stabilization treatment by the voltage stabilizing diode 5 and the voltage stabilizer 6 and then supplies power to the amplifier 2, a bias current is applied to the beam lead Schottky barrier diode through the load limiting resistor 8, the input end of the amplifier 2 is connected with the isolation capacitor C1, the output end of the amplifier is connected with the isolation capacitor C2, and the whole circuit is integrated on a radio frequency circuit board and packaged in the cavity 14.
Referring to fig. 5, the waveguide-microstrip line converter 15 is composed of a waveguide 9 and a microstrip line, the waveguide 9 is a rectangular waveguide, the microstrip line includes a dielectric substrate 13, a microstrip probe 10 and a microstrip main transmission line 12, the microstrip probe 10 and the microstrip main transmission line 12 fixed on the dielectric substrate 13 are connected through a high impedance line 11, the high impedance line is inductive, and can offset the capacitance effect of the microstrip probe to a certain extent, thereby realizing impedance matching between the microstrip main transmission line and the microstrip probe; the waveguide 9 has a hole in the center of its wide side, and the microstrip probe 10 is embedded in the hole, and has a probe transition structure, simple structure, low transmission loss, small standing wave, low return loss, wide frequency band, low cost, etc.
The utility model discloses active millimeter wave detector sends hyperfrequency pulse signal to beam lead wire schottky barrier diode 1 through waveguide-microstrip line converter, through beam lead wire schottky barrier diode 1 with signal conversion and distinguish the voltage of hyperfrequency power envelope, this voltage passes through beam lead wire schottky barrier diode 2 amplifier that the other end is connected and gets into the SMA of wave detector after enlargiing and connect 3, connects the output from SMA.
Through the experiment, when input wave frequency was 215GHz ~ 235GHz, the utility model discloses the sensitivity of active millimeter wave detector is more than or equal to 500V/W, and the maximum level of input power is 5mW, and dynamic range is more than or equal to 40dB, and the fast reaction speed when load is 50 omega is 1 ns.
Claims (6)
1. The active millimeter wave detector is characterized by comprising a cylindrical cavity (14), wherein one end of the cavity (14) is an input end, the other end of the cavity is an output end, a waveguide-microstrip line converter (15) is arranged on the input end, an SMA connector (3) and a power supply contact (4) are arranged on the output end, and a beam lead Schottky barrier diode (1) and an amplifier (2) are sequentially connected between the waveguide-microstrip line converter (15) and the SMA connector (3).
2. The active millimeter wave detector according to claim 1, wherein the input end of the amplifier (2) is connected with an isolation capacitor c 1, and the output end is connected with an isolation capacitor c 2.
3. An active millimeter wave detector according to claim 1, characterized in that a load limiting resistor (8), a voltage stabilizer (6) and a voltage stabilizing diode (5) are connected in sequence between the beam lead Schottky barrier diode (1) and the power supply contact (4), and the voltage stabilizer (6) is connected with the amplifier (2) through a wire.
4. An active millimeter wave detector according to claim 3, characterized in that said power supply contacts (4) are 12V power supply contacts.
5. The active millimeter wave detector according to claim 1, wherein the waveguide-microstrip line converter (15) is composed of a waveguide (9) and a microstrip line, the microstrip line comprises a dielectric substrate (13), a microstrip probe (10) and a microstrip main transmission line (12), the microstrip probe (10) and the microstrip main transmission line (12) are connected through a high impedance line (11), a hole is formed in the center of a wide side of the waveguide (9), and the microstrip probe (10) is embedded in the hole.
6. An active millimeter wave detector according to claim 1, characterized in that the beam lead schottky barrier diode (1), the amplifier (2) and the potentiostat (6) are provided with ground terminals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922234633.XU CN211554071U (en) | 2019-12-13 | 2019-12-13 | Active millimeter wave detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922234633.XU CN211554071U (en) | 2019-12-13 | 2019-12-13 | Active millimeter wave detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211554071U true CN211554071U (en) | 2020-09-22 |
Family
ID=72506238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922234633.XU Active CN211554071U (en) | 2019-12-13 | 2019-12-13 | Active millimeter wave detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211554071U (en) |
-
2019
- 2019-12-13 CN CN201922234633.XU patent/CN211554071U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR20240017068A (en) | High-bandwidth load-modulated power amplifier and corresponding front-end module | |
| CN111565482B (en) | Radio frequency front end integrated electromagnetic protection circuit | |
| CN211554071U (en) | Active millimeter wave detector | |
| CN105305972A (en) | Radio-frequency front-end electromagnetic pulse protection module | |
| CN109521491A (en) | A kind of modulation type direct detection formula imaging front radiometer | |
| Li et al. | Simulation and design of RF front-end electromagnetic protection module based on VHF communication | |
| CN109698676A (en) | Ultra wide band Miniature power amplifier based on PTT technology | |
| CN210168019U (en) | L-frequency-band miniature chip type high-power amplitude limiter | |
| Yang et al. | An 8-12 GHz GaAs limiter based on PIN diodes and Schottky diodes | |
| Cantu et al. | Microwave reflection amplifier for detection and tagging applications | |
| CN111601493B (en) | Method and device for protecting strong electromagnetic pulse of radio frequency link | |
| CN205610589U (en) | C wave band amplitude limiting low -noise amplifier | |
| CN209821288U (en) | Full-period detector based on mixing Schottky diode | |
| CN107196609B (en) | Graphene radio frequency amplifier | |
| CN204836091U (en) | Switch amplitude limiting low -noise amplifier | |
| CN213879759U (en) | High-power amplifier tube output blocking circuit | |
| KR102300989B1 (en) | Output power measurement method of high power amplifier module | |
| CN216529283U (en) | Ku-waveband single-pole single-throw microwave switch | |
| CN212343741U (en) | Absorption type amplitude limiter | |
| US4053841A (en) | Microwave frequency discriminator comprising an FET amplifier | |
| CN110333379B (en) | Graphene detector based on direct current bias and design method | |
| CN116318202A (en) | Interference device for radio frequency front-end circuit with limiter | |
| CN103475864A (en) | Video image sending circuit | |
| CN219608234U (en) | Anti-radio-frequency interference digital pyroelectric infrared sensor | |
| Abuasaker et al. | A high sensitive receiver for baseband pulse microwave radar sensor using hybrid technology |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 710000, Room L104, 1st Floor, R&D Building, China Putian Xi'an Industrial Park, Aerospace South Road, National Civil Aerospace Industry Base, Xi'an City, Shaanxi Province Patentee after: Xi'an Bit Lianchuang Technology Co.,Ltd. Address before: 710100 room 210, 2nd floor, hangchuang International Plaza, Shenzhou 4th Road, Xi'an space base, Shaanxi Province Patentee before: XI'AN BITELIANCHUANG MICROWAVE TECHNOLOGY CO.,LTD. |