CN108521020B - Novel hand-held type monitoring direction finding antenna - Google Patents
Novel hand-held type monitoring direction finding antenna Download PDFInfo
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- CN108521020B CN108521020B CN201810513166.1A CN201810513166A CN108521020B CN 108521020 B CN108521020 B CN 108521020B CN 201810513166 A CN201810513166 A CN 201810513166A CN 108521020 B CN108521020 B CN 108521020B
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- main body
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- recognition control
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- 238000012544 monitoring process Methods 0.000 title abstract description 14
- 230000010287 polarization Effects 0.000 claims description 46
- 238000001514 detection method Methods 0.000 claims 2
- 238000000034 method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 5
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
- G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/225—Supports; Mounting means by structural association with other equipment or articles used in level-measurement devices, e.g. for level gauge measurement
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/24—Polarising devices; Polarisation filters
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
- H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
- Radio Transmission System (AREA)
Abstract
A novel hand-held monitoring direction-finding antenna comprises an antenna main body and a handle; the intelligent recognition control module is also included; the tail end of the antenna main body is provided with a circular socket, and at least two contacts are arranged on the circular socket; the intelligent recognition control module is an annular circuit board structure, and four clamping grooves are uniformly distributed on the outer circumference of the annular circuit board; an embedded chip is arranged on the front surface of the intelligent identification control module; six contact switches are distributed on the back of the intelligent identification control module corresponding to the contacts on the antenna main body; the six contact switches are symmetrically arranged on the central line of the intelligent recognition control module, the intelligent recognition control module is clamped and fixed on the tail end of the inner side of the handle through four clamping grooves, and the back surface of the intelligent recognition control module is outwards placed; the antenna main body is connected with the handle through a circular socket at the tail end. The invention greatly improves the convenience and the use efficiency of operation.
Description
Technical Field
The invention belongs to the technical field of electronic information, and relates to a novel handheld monitoring direction-finding antenna.
Background
With the rapid development of radio services, more and more 9KHz-8GHz related devices are used, the great existence of illegal radio devices is in serious attack on the rights of legal users, the requirements on radio monitoring law enforcement are also higher and higher, and related radio locating units need high-performance and high-mobility directional antennas to closely search for harmful information sources, and finally shut down the harmful information sources. Meanwhile, the monitoring direction-finding antenna is also an important component of the monitoring equipment, and can meet the daily requirements of radio monitoring service.
The hand-held monitoring direction-finding antenna generally comprises an antenna and an antenna handle, wherein the antenna handle is used for conveniently fixing the antenna, and different antennas can be replaced by pulling and inserting the antenna. A GPS and an electronic compass module are arranged in a handle of the traditional handheld antenna to assist in direction finding and positioning; sometimes the amplifier is mounted inside the antenna handle as desired. In consideration of factors such as antenna efficiency and size, the antenna is generally divided into several different frequency bands when the antenna of 9KHz-8GHz is designed, for example, the antenna is commonly designed in four frequency bands of 9KHz-20MHz, 20MHz-200MHz, 200MHz-500MHz and 500MHz-8GHz, and the polarization mode of the antenna is divided into vertical polarization and horizontal polarization, so that a problem is brought, and when the antenna handle is connected with equipment such as an instrument, the corresponding signal can be measured only by manually selecting the frequency band and the polarization mode of the antenna, which is very inconvenient to use. Hand-held direction finding antennas are commonly used in security departments, armies, local radio authorities, and the like, and are used in conjunction with hand-held meters. For example, when looking for a black broadcast, the local radio management department generally performs outdoor operation, and when operated by a single person, the local radio management department requires an operator to hold a handheld instrument, hold a handheld direction-finding antenna, and detect illegal radio signals. In order to avoid risks, the duration time of illegal broadcasting is often short when illegal signals are transmitted, and if an antenna frequency band and a polarization mode are required to be manually set on an instrument, great inconvenience is definitely brought to operators, time is left for illegal molecules, the success rate of capturing the illegal radio signals is greatly reduced, and the illegal molecules are free from the law.
Therefore, how to solve the above problems is the content of important researches by those skilled in the art.
Disclosure of Invention
In order to overcome the defects in the prior art, the invention aims to provide a novel handheld monitoring direction-finding antenna, which adopts an antenna polarization mode and a frequency band intelligent identification control module so as to intelligently identify the frequency bands and polarization modes of different antennas; the control panel module transmits the identification result to the instrument equipment in a serial port and other communication modes, so that the instrument equipment can automatically judge and set the frequency band and the polarization mode of the antenna.
To achieve the above and other related objects, the present invention provides a novel handheld monitoring direction-finding antenna, including an antenna main body and a handle; the intelligent recognition control module is also included; the tail end of the antenna main body is provided with a circular socket, and at least two contacts are arranged on the circular socket; the at least two contacts are arranged in a diagonally symmetrical manner with respect to the center line of the circular socket; the intelligent recognition control module is of an annular circuit board structure, and four clamping grooves are uniformly distributed on the outer side of the annular circuit board in the circumferential direction; an embedded chip is arranged on the front surface of the intelligent identification control module; six contact switches are distributed on the back of the intelligent identification control module corresponding to the contacts on the antenna main body; the six contact switches are symmetrically arranged on the central line of the intelligent recognition control module, wherein an included angle of 40 degrees is formed between two contact switches close to the central line; an included angle of 25 degrees is formed between every two other adjacent contact switches; the intelligent recognition control module is clamped and fixed on the tail end of the inner side of the handle through the four clamping grooves, and the back surface of the intelligent recognition control module is outwards placed; the antenna main body is connected with the handle through a circular socket at the tail end, and contacts on the circular socket of the antenna main body are ensured to be in touch contact with contact switches on the intelligent recognition control module; thereby identifying the frequency band and polarization of the antenna.
In the above scheme, the content is explained as follows:
1. in the above scheme, the frequency bands of the antenna main body are four types of 9KHz-20MHz, 20MHz-200MHz, 200MHz-500MHz and 500MHz-8GHz, the polarization mode of the antenna main body is horizontal polarization and vertical polarization, and three contact switches among the six contact switches respectively correspond to the antenna main body in the four frequency bands of 9KHz-20MHz, 20MHz-200MHz, 200MHz-500MHz and 500MHz-8 GHz; the other three contact switches respectively polarize the antenna main body horizontally or vertically; the antenna main body rotates by 90 degrees when the two polarization modes are switched; the contact switch is arranged on the intelligent recognition control module corresponding to six contacts.
2. In the above scheme, the six contact switches are named S1, S2, S3, S4, S5, S6 in sequence according to the arrangement sequence on the intelligent recognition control module; when the antenna main body with the frequency range of 9KHz-20MHz is inserted into the handle in a horizontal polarization mode, the contact point on the antenna main body contacts with the S2 switch on the intelligent recognition control module, and when the antenna main body with the frequency range of 9KHz-20MHz is inserted into the handle in a vertical mode, the contact point on the antenna main body contacts with the S5 switch on the intelligent recognition control module; when the 20MHz-200MHz antenna main body is inserted into the handle in a horizontal polarization mode, the contacts on the antenna main body touch the S1 and S2 switches on the intelligent recognition control module, and when the 20MHz-200MHz antenna main body is inserted into the handle in a vertical mode, the contacts on the antenna main body touch the S4 and S5 switches on the intelligent recognition control module; when the 200MHz-500MHz antenna main body is inserted into the handle in a horizontal polarization mode, the contact point contact on the antenna main body contacts with an S1 switch on the intelligent recognition control module, and when the 200MHz-500MHz antenna main body is inserted into the handle in a vertical mode, the contact point contact on the antenna main body contacts with an S4 switch on the intelligent recognition control module; when the 500MHz-8GHz antenna main body is inserted into the handle in a horizontal polarization mode, the contact point on the antenna main body touches the S6 switch on the intelligent recognition control module, and when the 500MHz-8GHz antenna main body is inserted into the handle in a vertical mode, the contact point on the antenna main body touches the S3 switch on the intelligent recognition control module.
3. In the scheme, the embedded chip is a singlechip STM32 chip.
4. In the above scheme, in the program of the embedded chip, one ends of the six contact switches are grounded together, the other ends are respectively connected to the IO pins of the chip, and the IO ports are configured to be in an input pull-up mode, so that the embedded chip obtains bit data of the six contact switches; the states of the six contact switches are read, the state data of the contact switches are put into one frame of data of a serial port, and the data are output to an upper computer, so that an antenna frequency band and a polarization mode are obtained.
5. In the above scheme, the intelligent recognition control module is designed into an annular circuit board structure, and clamping grooves are uniformly distributed on the periphery side, so that the intelligent recognition control module can be installed at the position where the antenna main body and the antenna handle are in contact.
6. In the scheme, the contact switch is arranged on the intelligent identification control module, so that when the antenna main body is inserted into the antenna handle, the antenna main body can contact with the contact switch on the intelligent identification control module, and different antenna main bodies can be distinguished through the contact switch.
7. In the scheme, the six contacts are arranged at an angle, so that the contact switch contacted with the intelligent identification control board can be ensured when the antenna main body is inserted in the forward and backward directions of the horizontal polarization direction and the vertical polarization direction, and the antenna frequency band and the polarization mode can be identified stably and reliably.
Due to the application of the technical scheme, compared with the prior art, the invention has the following beneficial effects:
according to the handheld monitoring direction-finding antenna, the antenna main body is in plug-in fit with the handle, and the contacts on the circular socket of the antenna main body are contacted with the contact switch on the intelligent identification control module arranged on the inner side of the handle, so that the frequency band and the polarization mode of the antenna are automatically, stably and reliably identified, and the convenience and the use efficiency of operation are greatly improved.
Drawings
FIG. 1 is a schematic front view of an intelligent recognition control module according to the present invention;
FIG. 2 is a schematic diagram of a smart identification control module according to the present invention;
FIG. 3 is a schematic cross-sectional view of a handle according to the present invention;
FIG. 4 is a schematic diagram of a partial structure of a 9KHz-20MHz band antenna body according to the present invention;
FIG. 5 is a schematic diagram of a partial structure of a 20MHz-200MHz band antenna body of the present invention;
fig. 6 is a schematic diagram of a partial structure of a 200MHz-500MHz band antenna body according to the present invention;
fig. 7 is a schematic diagram of a partial structure of a 500MHz-8GHz band antenna body according to the present invention.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which is to be read in light of the accompanying drawings.
Examples:
as shown in fig. 1-7, a novel handheld monitoring direction-finding antenna comprises an antenna main body 1 and a handle 2; the intelligent recognition control module 3 is also included; the tail end of the antenna main body 1 is provided with a circular jack 4, and at least two contacts 5 are arranged on the circular jack 4; the at least two contacts 5 are arranged in a diagonally symmetrical manner with respect to the center line of the circular socket 4; the intelligent recognition control module 3 is of an annular circuit board structure, and four clamping grooves 6 are uniformly distributed in the circumferential direction of the outer side of the annular circuit board; an embedded chip 7 is arranged on the front surface of the intelligent recognition control module 3; six contact switches 8 are arranged on the back of the intelligent recognition control module 3 corresponding to the contacts 5 on the antenna main body 1; the six contact switches 8 are symmetrically arranged on the central line of the intelligent recognition control module 3, wherein an included angle of 40 degrees is formed between the two contact switches 8 close to the central line; every two other adjacent contact switches 8 form an included angle of 25 degrees; the intelligent recognition control module 3 is clamped and fixed on the tail end of the inner side of the handle 2 through the four clamping grooves 6, and the back surface of the intelligent recognition control module 3 is outwards placed; the antenna main body 1 is connected with the handle 2 through a circular socket 4 at the tail end, and contacts 5 on the circular socket 4 of the antenna main body 1 are ensured to be in touch contact with a contact switch 8 on the intelligent recognition control module 3; thereby identifying the frequency band and polarization of the antenna.
The frequency band of the antenna main body 1 is four types of frequency bands of 9KHz-20MHz, 20MHz-200MHz, 200MHz-500MHz and 500MHz-8GHz, the polarization mode of the antenna main body 1 is horizontal polarization and vertical polarization, and three contact switches 8 respectively correspond to the antenna main body 1 in the four frequency bands of 9KHz-20MHz, 20MHz-200MHz, 200MHz-500MHz and 500MHz-8 GHz; the other three contact switches 8 respectively polarize the antenna body 1 horizontally or vertically; when the two polarization modes are switched, the antenna main body 1 rotates by 90 degrees; the contact switch 8 is arranged on the intelligent recognition control module 3 corresponding to six contacts.
The six contact switches 8 are sequentially named as S1, S2, S3, S4, S5 and S6 according to the arrangement sequence on the intelligent recognition control module 3; when the antenna main body with the frequency range of 9KHz-20MHz is inserted into the handle in a horizontal polarization mode, the contact point on the antenna main body contacts with the S2 switch on the intelligent recognition control module, and when the antenna main body with the frequency range of 9KHz-20MHz is inserted into the handle in a vertical mode, the contact point on the antenna main body contacts with the S5 switch on the intelligent recognition control module; when the 20MHz-200MHz antenna main body is inserted into the handle in a horizontal polarization mode, the contacts on the antenna main body touch the S1 and S2 switches on the intelligent recognition control module, and when the 20MHz-200MHz antenna main body is inserted into the handle in a vertical mode, the contacts on the antenna main body touch the S4 and S5 switches on the intelligent recognition control module; when the 200MHz-500MHz antenna main body is inserted into the handle in a horizontal polarization mode, the contact point contact on the antenna main body contacts with an S1 switch on the intelligent recognition control module, and when the 200MHz-500MHz antenna main body is inserted into the handle in a vertical mode, the contact point contact on the antenna main body contacts with an S4 switch on the intelligent recognition control module; when the 500MHz-8GHz antenna main body is inserted into the handle in a horizontal polarization mode, the contact point on the antenna main body touches the S6 switch on the intelligent recognition control module, and when the 500MHz-8GHz antenna main body is inserted into the handle in a vertical mode, the contact point on the antenna main body touches the S3 switch on the intelligent recognition control module.
The embedded chip 7 is a singlechip STM32 chip.
In the program of the embedded chip 7, one ends of the six contact switches 8 are grounded together, the other ends are respectively connected to IO pins of the chip, an IO port is configured as an input pull-up mode, and the embedded chip obtains bit data of the six contact switches; the states of the six contact switches are read, the state data of the contact switches are put into one frame of data of a serial port, and the data are output to an upper computer, so that an antenna frequency band and a polarization mode are obtained.
The intelligent recognition control module 3 is designed into an annular circuit board structure, and clamping grooves 6 are uniformly distributed on the periphery side upwards, so that the intelligent recognition control module 3 can be installed at the position where the antenna main body 1 and the handle 2 are in contact.
The contact switch is arranged on the intelligent identification control module, so that when the antenna main body is inserted into the antenna handle, the antenna main body can contact with the contact switch on the intelligent identification control module, and different antenna main bodies can be distinguished through the contact switch.
The six contacts are arranged in an angle, so that when the antenna main body is inserted in the forward and reverse directions of the horizontal polarization direction and the vertical polarization direction, the contact switch contacted with the intelligent identification control board can be ensured, and the antenna frequency band and the polarization mode can be identified stably and reliably.
According to the handheld monitoring direction-finding antenna, the antenna main body is in plug-in fit with the handle, and the contacts on the circular socket of the antenna main body are contacted with the contact switch on the intelligent identification control module arranged on the inner side of the handle, so that the frequency band and the polarization mode of the antenna are automatically, stably and reliably identified, and the convenience and the use efficiency of operation are greatly improved.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (2)
1. A novel handheld detection direction-finding antenna comprises an antenna main body and a handle; the method is characterized in that: the intelligent recognition control module is also included; the tail end of the antenna main body is provided with a circular socket, and at least two contacts are arranged on the circular socket; the at least two contacts are arranged in a diagonally symmetrical manner with respect to the center line of the circular socket; the intelligent recognition control module is of an annular circuit board structure, and four clamping grooves are uniformly distributed on the outer side of the annular circuit board in the circumferential direction; an embedded chip is arranged on the front surface of the intelligent identification control module; six contact switches are distributed on the back of the intelligent identification control module corresponding to the contacts on the antenna main body; the six contact switches are symmetrically arranged on the central line of the intelligent recognition control module, wherein an included angle of 40 degrees is formed between two contact switches close to the central line; an included angle of 25 degrees is formed between every two other adjacent contact switches; the intelligent recognition control module is clamped and fixed on the tail end of the inner side of the handle through the four clamping grooves, and the back surface of the intelligent recognition control module is outwards placed; the frequency band of the antenna main body is four types of frequency bands of 9KHz-20MHz, 20MHz-200MHz, 200MHz-500MHz and 500MHz-8GHz, the polarization mode of the antenna main body is horizontal polarization and vertical polarization, and three contact switches in the six contact switches respectively correspond to the antenna main body in the four frequency bands of 9KHz-20MHz, 20MHz-200MHz, 200MHz-500MHz and 500MHz-8 GHz; the other three contact switches respectively polarize the antenna main body horizontally or vertically; the antenna main body rotates by 90 degrees when the two polarization modes are switched; the contact switch is arranged on the intelligent recognition control module corresponding to six contacts; the six contact switches are sequentially named as S1, S2, S3, S4, S5 and S6 according to the arrangement sequence on the intelligent recognition control module; when the antenna main body with the frequency range of 9KHz-20MHz is inserted into the handle in a horizontal polarization mode, the contact point on the antenna main body contacts with the S2 switch on the intelligent recognition control module, and when the antenna main body with the frequency range of 9KHz-20MHz is inserted into the handle in a vertical mode, the contact point on the antenna main body contacts with the S5 switch on the intelligent recognition control module; when the 20MHz-200MHz antenna main body is inserted into the handle in a horizontal polarization mode, the contacts on the antenna main body touch the S1 and S2 switches on the intelligent recognition control module, and when the 20MHz-200MHz antenna main body is inserted into the handle in a vertical mode, the contacts on the antenna main body touch the S4 and S5 switches on the intelligent recognition control module; when the 200MHz-500MHz antenna main body is inserted into the handle in a horizontal polarization mode, the contact point contact on the antenna main body contacts with an S1 switch on the intelligent recognition control module, and when the 200MHz-500MHz antenna main body is inserted into the handle in a vertical mode, the contact point contact on the antenna main body contacts with an S4 switch on the intelligent recognition control module; when the 500MHz-8GHz antenna main body is inserted into the handle in a horizontal polarization mode, the contact point on the antenna main body touches the S6 switch on the intelligent recognition control module, and when the 500MHz-8GHz antenna main body is inserted into the handle in a vertical mode, the contact point on the antenna main body touches the S3 switch on the intelligent recognition control module; in the program of the embedded chip, one ends of the six contact switches are grounded together, the other ends of the six contact switches are respectively connected to IO pins of the chip, an IO port is configured to be in a pull-up input mode, and the embedded chip obtains bit data of the six contact switches; the states of the six contact switches are read, the state data of the contact switches are put into one frame of data of a serial port, and the data are output to an upper computer, so that an antenna frequency band and a polarization mode are obtained; the antenna main body is connected with the handle through a circular socket at the tail end, and contacts on the circular socket of the antenna main body are ensured to be in touch contact with contact switches on the intelligent recognition control module; thereby identifying the frequency band and polarization of the antenna.
2. The hand-held detection direction finding antenna of claim 1, wherein: the embedded chip is a singlechip STM32 chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810513166.1A CN108521020B (en) | 2018-05-25 | 2018-05-25 | Novel hand-held type monitoring direction finding antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810513166.1A CN108521020B (en) | 2018-05-25 | 2018-05-25 | Novel hand-held type monitoring direction finding antenna |
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| Publication Number | Publication Date |
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| CN108521020A CN108521020A (en) | 2018-09-11 |
| CN108521020B true CN108521020B (en) | 2023-12-15 |
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| CN201810513166.1A Active CN108521020B (en) | 2018-05-25 | 2018-05-25 | Novel hand-held type monitoring direction finding antenna |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110007158B (en) * | 2019-05-07 | 2020-07-31 | 中国人民解放军32039部队 | Antenna testing device and antenna dynamic testing platform |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2220246A1 (en) * | 1995-05-26 | 1996-11-28 | The Secretary Of State For Defence Of The United Kingdom Of Great Britain And Northern Ireland | Composite materials |
| CA2618932A1 (en) * | 2007-02-05 | 2008-08-05 | Research In Motion Limited | Multi-mode receiver with adaptive mode selection |
| CN203312441U (en) * | 2013-05-31 | 2013-11-27 | 成都点阵科技有限公司 | Antenna suitable for portable radio monitoring integrated machine |
| CN104167587A (en) * | 2014-07-22 | 2014-11-26 | 苏州边桐传感科技有限公司 | Antenna mounting base with real-time monitoring function |
| CN208189773U (en) * | 2018-05-25 | 2018-12-04 | 南京中原得生电子实业有限公司 | Novel hand-held monitoring and direction-finding antenna |
-
2018
- 2018-05-25 CN CN201810513166.1A patent/CN108521020B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2220246A1 (en) * | 1995-05-26 | 1996-11-28 | The Secretary Of State For Defence Of The United Kingdom Of Great Britain And Northern Ireland | Composite materials |
| CA2618932A1 (en) * | 2007-02-05 | 2008-08-05 | Research In Motion Limited | Multi-mode receiver with adaptive mode selection |
| CN203312441U (en) * | 2013-05-31 | 2013-11-27 | 成都点阵科技有限公司 | Antenna suitable for portable radio monitoring integrated machine |
| CN104167587A (en) * | 2014-07-22 | 2014-11-26 | 苏州边桐传感科技有限公司 | Antenna mounting base with real-time monitoring function |
| CN208189773U (en) * | 2018-05-25 | 2018-12-04 | 南京中原得生电子实业有限公司 | Novel hand-held monitoring and direction-finding antenna |
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| CN108521020A (en) | 2018-09-11 |
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