CN112397858B - Ultrashort wave quadruplex ware - Google Patents
Ultrashort wave quadruplex ware Download PDFInfo
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- CN112397858B CN112397858B CN202011209753.5A CN202011209753A CN112397858B CN 112397858 B CN112397858 B CN 112397858B CN 202011209753 A CN202011209753 A CN 202011209753A CN 112397858 B CN112397858 B CN 112397858B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P1/00—Auxiliary devices
- H01P1/20—Frequency-selective devices, e.g. filters
- H01P1/213—Frequency-selective devices, e.g. filters combining or separating two or more different frequencies
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Abstract
The invention discloses an ultrashort wave quadruplex device, which comprises two paths of power dividers and four paths of filters, wherein the two paths of power dividers are respectively connected with a first band-pass filter and a second band-pass filter, one end of the first band-pass filter is connected with a first output channel, and one end of the second band-pass filter is connected with a second output channel; the first band-pass filter is connected with a first band-stop filter in parallel, the first band-stop filter is connected with a third band-pass filter and a second band-stop filter which are arranged in parallel, and one end of the third band-pass filter is connected with a third output channel; the second band-pass filter is connected with a third band-stop filter in parallel, the third band-stop filter is connected with a fourth band-pass filter and a fourth band-stop filter which are arranged in parallel, and one end of the fourth band-pass filter is connected with a fourth output channel; the adjacent frequency bands are overlapped by 5MHz, so that the full-band spectrum information is not lost; ensuring the real-time coverage of the 105 MHz-570 MHz full frequency band, and carrying out reconnaissance and interception on the ultrashort wave signals.
Description
Technical Field
The invention relates to the technical field of communication equipment, in particular to an ultrashort wave quadruplex device.
Background
When the ultra-short wave signal is detected, the electromagnetic environment of the receiver is very complex, and various out-of-band interference signals must be suppressed, if a traditional fixed sub-octave preselection filter is adopted, the instantaneous working bandwidth of the receiver is limited by the bandwidth of the preselection filter at the front end, and the working instantaneous bandwidth of receiving equipment cannot be covered in full frequency band in real time; the multiplexer is adopted to realize real-time receiving of full frequency bands, but certain intervals exist among frequency bands of the traditional multiplexer, so that the frequency spectrum information received by receiving equipment is incomplete, and back-end processing equipment has no way of fully analyzing and fully collecting interested frequency spectrum signals, namely useful information of original taste and flavor can not be obtained.
Disclosure of Invention
In view of the above technical problems in the related art, the present invention provides an ultrashort wave quadplexer, which can overcome the above disadvantages in the prior art.
In order to achieve the technical purpose, the technical scheme of the invention is realized as follows: an ultrashort wave quadruplex device comprises two power dividers and four filters, wherein the two power dividers are respectively connected with a first band-pass filter and a second band-pass filter, one end of the first band-pass filter is connected with a first output channel, and one end of the second band-pass filter is connected with a second output channel;
the first band-pass filter is connected with a first band-stop filter in parallel, the first band-stop filter is connected with a third band-pass filter and a second band-stop filter which are arranged in parallel, and one end of the third band-pass filter is connected with a third output channel;
the second band-pass filter is connected with a third band-stop filter in parallel, the third band-stop filter is connected with a fourth band-pass filter and a fourth band-stop filter which are arranged in parallel, and one end of the fourth band-pass filter is connected with a fourth output channel;
the output frequencies of the first output channel, the second output channel, the third output channel and the fourth output channel are 105 MHz-225 MHz, 220 MHz-340 MHz, 335 MHz-455 MHz and 450 MHz-570 MHz in sequence.
Further, one end of the second band-stop filter and one end of the fourth band-stop filter are both connected with a first resistor of 50 Ω.
Further, the end of the second band-stop filter and the end of the fourth band-stop filter are both grounded.
Further, first band pass filter from left to right internal series cross connect has four first electric capacity and first inductance, first inductance with parallel connection has second electric capacity and second inductance between the first electric capacity at first inductance rear, the second electric capacity with the other end of second inductance links to each other ground, first electric capacity parallel connection first band stop filter, first band stop filter is equipped with two third electric capacity, the parallel connection of third electric capacity has the third inductance, and is adjacent be connected with series connection's fourth inductance and fourth electric capacity between the third electric capacity, the end ground connection of fourth electric capacity, first band pass filter with second band pass filter, third band pass filter and fourth band pass filter structure is the same.
Further, there is a 5MHz band overlap between two adjacent output channels.
The invention has the beneficial effects that: the number of output channels is 4, and the adjacent frequency bands are overlapped by a frequency band of 5MHz, so that full-band frequency spectrum information can be ensured not to be lost; the real-time coverage of the 105 MHz-570 MHz full frequency band is ensured, and the requirement of reconnaissance, direction finding and receiving application scenes of ultrashort wave signals can be met.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic block diagram of an ultrashort wave quadplexer according to an embodiment of the present invention;
FIG. 2 is a circuit schematic of a first output channel and a third output channel according to an embodiment of the invention;
figure 3 is a performance curve of a four-way bandpass filter according to an embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.
As shown in fig. 1-2, an ultrashort wave quadruplex according to an embodiment of the present invention includes two power dividers and four filters, where the two power dividers are respectively connected to a first band-pass filter and a second band-pass filter, one end of the first band-pass filter is connected to a first output channel, and one end of the second band-pass filter is connected to a second output channel;
the first band-pass filter is connected with a first band-stop filter in parallel, the first band-stop filter is connected with a third band-pass filter and a second band-stop filter which are arranged in parallel, and one end of the third band-pass filter is connected with a third output channel;
the second band-pass filter is connected with a third band-stop filter in parallel, the third band-stop filter is connected with a fourth band-pass filter and a fourth band-stop filter which are arranged in parallel, and one end of the fourth band-pass filter is connected with a fourth output channel;
the output frequencies of the first output channel, the second output channel, the third output channel and the fourth output channel are 105 MHz-225 MHz, 220 MHz-340 MHz, 335 MHz-455 MHz and 450 MHz-570 MHz in sequence.
In a specific embodiment of the present invention, a first resistor of 50 Ω is connected to both one end of the second band-stop filter and one end of the fourth band-stop filter.
In a specific embodiment of the invention, the end of the second band-stop filter and the end of the fourth band-stop filter are both grounded.
In a specific embodiment of the present invention, the first band-pass filter is connected in series and in an interleaved manner with four first capacitors and four first inductors from left to right, a second capacitor and a second inductor are connected in parallel between the first inductor and the first capacitor behind the first inductor, the other ends of the second capacitor and the second inductor are connected to ground, the first capacitor is connected in parallel with a first band-pass filter, the first band-pass filter is provided with two third capacitors, the third capacitors are connected in parallel with a third inductor, a fourth inductor and a fourth capacitor are connected in series between the adjacent third capacitors, the end of the fourth capacitor is grounded, and the first band-pass filter has the same structure as the second band-pass filter, the third band-pass filter and the fourth band-pass filter.
In one embodiment of the invention, there is a 5MHz band overlap between two adjacent output channels.
In order to facilitate understanding of the above-described technical aspects of the present invention, the above-described technical aspects of the present invention will be described in detail below in terms of specific usage.
In specific use, according to the ultrashort wave quadrupler disclosed by the invention, as shown in fig. 3, S11 is a reflection function, reflects the voltage standing wave ratio of the input port 1, and shows that the matching is good in the full-frequency band range.
S21, S31, S41, S51 are transfer functions:
s21 represents a port 1 to port 2 transfer function, S31 represents a port 1 to port 3 transfer function, S41 represents a port 1 to port 4 transfer function, and S51 represents a port 1 to port 5 transfer function.
Thus, S21 shows the transmission response of the first output channel, S31 shows the transmission response of the second output channel, S41 shows the transmission response of the third output channel, and S51 shows the transmission response of the fourth output channel.
As can be seen from the transmission response curve, the ultrashort wave frequency band four-channel power divider has the advantages that each subchannel out-of-band rejection degree is higher, meanwhile, certain frequency band overlapping exists between adjacent subchannel frequency bands, full-band frequency spectrum information can be guaranteed not to be lost, the insertion loss of each subchannel passband is small and is about 3.5dB, and the requirement of reconnaissance, direction-finding and receiving application scenes of ultrashort wave signals can be met.
In summary, with the above technical solution of the present invention, the number of output channels is 4, and adjacent frequency bands are overlapped by a frequency band of 5MHz, so that it can be ensured that full-band spectrum information is not lost; the real-time coverage of the 105 MHz-570 MHz full frequency band is ensured, and the requirement of reconnaissance, direction finding and receiving application scenes of ultrashort wave signals can be met.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (3)
1. An ultrashort wave quadruplex device comprises two paths of power dividers and four paths of filters, and is characterized in that the two paths of power dividers are respectively connected with a first band-pass filter and a second band-pass filter, one end of the first band-pass filter is connected with a first output channel, and one end of the second band-pass filter is connected with a second output channel;
the first band-pass filter is connected with a first band-stop filter in parallel, the first band-stop filter is connected with a third band-pass filter and a second band-stop filter which are arranged in parallel, and one end of the third band-pass filter is connected with a third output channel;
the second band-pass filter is connected with a third band-stop filter in parallel, the third band-stop filter is connected with a fourth band-pass filter and a fourth band-stop filter which are arranged in parallel, and one end of the fourth band-pass filter is connected with a fourth output channel;
the output frequencies of the first output channel, the second output channel, the third output channel and the fourth output channel are 105 MHz-225 MHz, 220 MHz-340 MHz, 335 MHz-455 MHz and 450 MHz-570 MHz in sequence; the end of the second band-stop filter and the end of the fourth band-stop filter are both grounded.
2. The ultrashort wave quadplexer of claim 1 wherein a first resistor of 50 Ω is connected to both one end of the second band stop filter and one end of the fourth band stop filter.
3. The ultrashort wave quadrupler according to claim 1, wherein the first band-pass filter is serially and crossly connected with four first capacitors and four first inductors from left to right, a second capacitor and a second inductor are parallelly connected between the first inductor and the first capacitor behind the first inductor, the second capacitor and the other end of the second inductor are connected to the ground, the first capacitor is connected to the first band-pass filter in parallel, the first band-pass filter is provided with two third capacitors, the third capacitors are connected to the third inductors in parallel, the adjacent third capacitors are connected to the fourth inductors and the fourth capacitors in series, the tail end of the fourth capacitor is connected to the ground, and the first band-pass filter is identical to the second band-pass filter, the third band-pass filter and the fourth band-pass filter in structure.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011209753.5A CN112397858B (en) | 2020-11-03 | 2020-11-03 | Ultrashort wave quadruplex ware |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011209753.5A CN112397858B (en) | 2020-11-03 | 2020-11-03 | Ultrashort wave quadruplex ware |
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| CN112397858A CN112397858A (en) | 2021-02-23 |
| CN112397858B true CN112397858B (en) | 2022-04-05 |
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Citations (3)
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| US4504805A (en) * | 1982-06-04 | 1985-03-12 | Andrew Corporation | Multi-port combiner for multi-frequency microwave signals |
| US4644526A (en) * | 1984-11-13 | 1987-02-17 | Chialin Wu | Full duplex frequency division multiplex communication system |
| CN202196843U (en) * | 2011-08-19 | 2012-04-18 | 宋通 | Multiplexer multi-system module |
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| US7313367B2 (en) * | 2005-03-14 | 2007-12-25 | Northrop Grumman Corporation | Switched multiplexer method to combine multiple broadband RF sources |
| CN201252148Y (en) * | 2008-08-01 | 2009-06-03 | 苏州艾福电子通讯有限公司 | Multiplexer module |
| CN105991105B (en) * | 2015-02-14 | 2018-07-10 | 成都宏明电子股份有限公司 | A kind of LC electrically adjusted band-pass filters and LC electricity tune bandstop filters |
| CN205282616U (en) * | 2015-12-10 | 2016-06-01 | 西安市索飞微波技术有限公司 | Multichannel borders on high -power spiral multiplexer of type |
| CN106876832B (en) * | 2017-03-31 | 2021-05-04 | 安徽四创电子股份有限公司 | Waveguide magic T-based broadband millimeter wave band waveguide multiplexer |
| CN108055047A (en) * | 2017-12-07 | 2018-05-18 | 中国电子科技集团公司第四十研究所 | A kind of 145GHz switch filterings mixer assembly and method |
| CN210093186U (en) * | 2019-06-13 | 2020-02-18 | 同方电子科技有限公司 | Dual complementary duplex filter |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4504805A (en) * | 1982-06-04 | 1985-03-12 | Andrew Corporation | Multi-port combiner for multi-frequency microwave signals |
| US4644526A (en) * | 1984-11-13 | 1987-02-17 | Chialin Wu | Full duplex frequency division multiplex communication system |
| CN202196843U (en) * | 2011-08-19 | 2012-04-18 | 宋通 | Multiplexer multi-system module |
Non-Patent Citations (1)
| Title |
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| 平面集成信道相邻输出多工器的研究;郝张成等;《2015年全国微波毫米波会议论文集》;20150530;第692-695页 * |
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