CN103915664A - Separation filter and waveguide pipe - Google Patents
Separation filter and waveguide pipe Download PDFInfo
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- CN103915664A CN103915664A CN201310001523.3A CN201310001523A CN103915664A CN 103915664 A CN103915664 A CN 103915664A CN 201310001523 A CN201310001523 A CN 201310001523A CN 103915664 A CN103915664 A CN 103915664A
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- pass filter
- signal
- orthogonal polarization
- transmitting
- transmission signal
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Abstract
The invention provides a separation filter and a waveguide pipe. The separation filter is applied to the waveguide pipe and comprises a power distributor, a first low pass filter, a connection port and a high pass filter. The power distributor is used for transmitting transmission signals and first orthogonal polarization receiving signals. The first low pass filter is coupled with the power distributor and used for filtering the transmission signals and transmitting the first orthogonal polarization receiving signals. The connection port is coupled with the power distributor, provided with a first bend, and used for transmitting the transmission signals. The high pass filter is coupled with the connection port and used for filtering the first orthogonal polarization receiving signals and transmitting the transmission signals.
Description
Technical field
The present invention relates to a kind of separation filter, particularly relate to a kind of by bending the separation filter of a high pass filter with reduced volume.
Background technology
It is vast and be not subject to the advantages such as ground environment interference that satellite communication has coverage, is widely used in military affairs, detection and commercial Communications service as satellite navigation, satellite voice broadcast service or satellite television broadcasting etc.
In prior art, waveguide (Waveguide) is a kind of communication element that is widely used in satellite communication transceiver.For example, waveguide is used for transmitting satellite radio signal, and the wireless signal of horizontal polarization orthogonal polarised direction and perpendicular polarization can be separated, and it is exported by different output ports, processes in order to rear end transmitting-receiving processor the wireless signal that tendency to develop is sent or received.
But satellite communication transceiver is often set up in skin or the higher spaciousness place of physical features, in order to transmitting and the reception of satellite signals.Therefore, the volume of satellite communication transceiver should dwindle as far as possible and alleviate its weight, to promote engineering staff, the convenience of satellite communication transceiver is installed, and is maintained tolerance and the fail safe of satellite communication transceiver, in order to avoid satellite communication transceiver blowing and drop in high wind.Therefore, how to dwindle volume and the weight of waveguide and satellite communication transceiver entirety, become one of target that industry makes great efforts.
Summary of the invention
Therefore, main purpose of the present invention is to provide a kind of separation filter, by bending a high pass filter to dwindle its area and volume.
The present invention discloses a kind of separation filter, for a waveguide, includes a power divider, is used for transmitting a transmission signal and an orthogonal polarization and receives signal; One low pass filter, is coupled to this power divider, is used for filtering this transmission signal, and transmits this orthogonal polarization reception signal; One connectivity port, is coupled to this power divider, has one first bending, is used for transmitting this transmission signal; And a high pass filter, be coupled to this connectivity port, be used for filtering this orthogonal polarization and receive signal, and transmit this transmission signal.
The present invention also discloses a kind of waveguide, includes a separation filter; One power divider, is used for transmitting a transmission signal and one first orthogonal polarization and receives signal; One first low pass filter, is coupled to this power divider, is used for filtering this transmission signal, and transmits this first orthogonal polarization reception signal; One connectivity port, is coupled to this power divider, has one first bending, is used for transmitting this transmission signal; And a high pass filter, be coupled to this connectivity port, be used for filtering this first orthogonal polarization and receive signal, and transmit this transmission signal; One transmit port, is coupled to this high pass filter, is used for inputting this transmission signal; One first receiving port, is used for receiving this first orthogonal polarization and receives signal; One second receiving port, is used for receiving one second orthogonal polarization and receives signal; One universal port, is used for exporting this transmission signal and input one receives signal; One second low pass filter, is coupled to this receiving port, is used for filtering this transmission signal and this first orthogonal polarization and receives signal, and transmit this second orthogonal polarization reception signal to this second receiving port; An and orthomode transducer, be coupled to this universal port, this second low pass filter and this separation filter, be used for transmitting this transmission signal and coordinate this second low pass filter that this reception signal is separated into this first orthogonal polarization reception signal and this second orthogonal polarization reception signal.
Brief description of the drawings
Fig. 1 is the schematic diagram of the embodiment of the present invention one waveguide.
Fig. 2 is the detailed structure schematic diagram of the separation filter of embodiment of the present invention Fig. 1.
Fig. 3 is the analog quantity mapping of the isolation of insertion consume, return consume and transmit port and the receiving port of the transmit port of Fig. 1.
Fig. 4 is the analog quantity mapping of the isolation of insertion consume, return consume and receiving port and the transmit port of the receiving port of Fig. 1.
Reference numeral explanation
10 waveguides
11 hand over weighted-voltage D/A converter
13 separation filters
131 power dividers
132 connectivity ports
133 high pass filters
12,134 low pass filters
21 conducting parts
22,23,24 staged transducers
TX transmits signal
RX receives signal
RX2, RX1 hand over polarization to receive signal
RP2, RP1 receiving port
TP transmit port
CMP universal port
B1, B2 bending
D1, D2 spacing
θ 1, θ 2 angles
CO ends reflecting surface
Embodiment
Please refer to Fig. 1, Fig. 1 is the schematic diagram of the embodiment of the present invention one waveguide 10.Waveguide 10 can be used for a satellite communication transceiver, and it includes an orthomode transducer (Orthomode Transducer) 11, a low pass filter 12, a separation filter (Diplexer) 13, a universal port CMP, receiving port RP2 and RP1 and a transmit port TP.Specifically, universal port CMP is used for exporting a transmission signal TX and input one reception signal RX.Orthomode transducer 11 is coupled to universal port CMP, low pass filter 12 and separation filter 13, is used for transmitting transmitting signal TX and coordinating low pass filter 12 that reception signal RX is separated into orthogonal polarization receiving signal RX2 and RX1.For example, orthogonal polarization receives signal RX2 and can be a horizontal polarization signal, and orthogonal polarization reception signal RX1 can be a perpendicular polarization signal.Low pass filter 12 is coupled between orthomode transducer 11 and receiving port RP2, is used for filtering transmitting signal TX and orthogonal polarization reception signal RX1, and transmits orthogonal polarization reception signal RX2 to receiving port RP2.Separation filter 13 is coupled to orthomode transducer 11, be used for coordinating low pass filter 134 to separate and transmit signal TX and receive signal orthogonal polarization reception signal RX1, to transmit and to transmit signal TX by transmit port TP, and orthogonal polarization is received to signal RX1 be passed to receiving port RP1.
Separation filter 13 includes a power divider 131, a connectivity port 132, a high pass filter 133 and a low pass filter 134.Power divider 131 is coupled to orthomode transducer 11, is used for transmitting transmitting signal TX and coordinating low pass filter 134 to be separated into orthogonal polarization receiving signal RX1.Low pass filter 134 is coupled to power divider 131, is used for filtering transmitting signal TX, and transmits orthogonal polarization reception signal RX1 to receiving port RP1.Connectivity port 132 is coupled to power divider 131, is used for transmitting transmission signal TX.High pass filter 133 is coupled to connectivity port 132, is used for filtering orthogonal polarization and receives signal RX1, and transmitted and transmitted signal TX by transmit port TP.
Thus, waveguide 10 can, in a satellite communication transceiver, transmit wireless signal, transmits signal TX and receives signal RX, and can be separated into orthogonal polarization reception signal RX2 and RX1 by receiving signal RX, and it is exported by receiving port RP2 and RP1 respectively.
Specifically, please refer to Fig. 2, Fig. 2 is the detailed structure schematic diagram of embodiment of the present invention separation filter 13.Connectivity port 132 has a bending B1, can be equivalent to a signal reflecting surface, is used for the orthogonal polarization of reflecting part to receive signal RX1, therefore can improve the isolation (Isolation) between receiving port RP1 and transmit port TP.High pass filter 133 is preferably bilateral staged (Double Corrugated) filter, and it includes a conducting part 21 and staged transducer (Corrugated Transformer) 22 and 23.Conducting part 21 includes multiple bending B2, makes high pass filter 133 be a serpentine shape.Staged transducer 22 is formed between one end and bending B1 of conducting part 21, is used for transmitting and transmits signal TX, and be used as a cut-off reflecting surface CO of orthogonal polarization reception signal RX1, avoids orthogonal polarization to receive signal RX1 by high pass filter 133.Staged transducer 23 is formed at the other end of conducting part 21, transmits and transmits signal TX with cause transmit port TP.Low pass filter 134 includes a staged transducer 24, and staged transducer 24 is formed between low pass filter 134 and power divider 131, is used for transmitting orthogonal polarization and receives signal RX1.
Should be noted, staged transducer can be considered a matching element, be arranged on the intersection that element is connected with element, for example, by design different rank and stairstepping (gradually wide or narrow ladder bore gradually), can be used to the equiva lent impedance between matching element and reduce signal attenuation.For instance, staged transducer 22 is that second order, bore are from connectivity port 132 toward gradually narrow shape of conducting part 21; Staged transducer 23 is not plotted in Fig. 2 from conducting part 21 toward transmit port TP(for quadravalence, bore) wide shape gradually; Staged transducer 24 is second order, bore from power divider 131 toward gradually wide shape of low pass filter 134.The configuration mode of staged transducer is not limit, and designer can be according to actual demand, does not use staged transducer, selects single staged transducer 22,23 or 24 respectively, or select multiple staged transducers simultaneously.For instance, designer can select staged transducer 22 and 23 simultaneously, selects staged transducer 22 and 24 simultaneously, select staged transducer 23 and 24 etc. simultaneously.
Under this structure, bending B1 and B2 make high pass filter 133 be a serpentine shape, so can dwindle the shared area of high pass filter 133, are equivalent to reduce area and the volume of separation filter 13 and waveguide 10 entirety, therefore can reduce its weight and manufacturing cost.Moreover bending B1 collocation staged transducer 22 can make to end reflecting surface CO reflection orthogonal polarization, and to receive the effect of signal RX1 better, also can improve the isolation between receiving port RP1 and transmit port TP.
In brief, the present invention couples the connectivity port 132 with bending B1 between high pass filter 133 and power divider 131, except dwindling area and the volume of separation filter 13 entirety, under the design of collocation staged transducer 22, also can improve the isolation between receiving port RP1 and transmit port TP.Those skilled in the art is changes in modification according to this, and is not limited to the present embodiment.
For instance, an angle θ 1 of bending B1 can adjust arbitrarily.The quantity of multiple bending B2 is not limit, and as shown in Figure 2, high pass filter 133 at least has two bending B2.An angle θ 2 of bending B2 also can adjust arbitrarily.High pass filter 133 and low pass filter 134 space D 1 apart.Between two adjacent bending B2 at a distance of a space D 2.Space D 1, D2 also can suitably adjust area and the volume of separation filter 13, with realistic demand.
On the other hand, separation filter 13 can be T-shaped junction (T-junction-type) waveguide, for separating of the wireless signal of electric field plane (E-plane) or H plane (H-plane).In other words, the special bending B1 of the present invention design can reflecting part low-frequency signal (being that orthogonal polarization receives signal RX1), make separation filter 13 separate equipolarization but the wireless signal (being that orthogonal polarization receives signal RX1 and transmission signal TX) of different frequency has preferably effect.
Please refer to Fig. 3, Fig. 3 has illustrated the isolation of insertion consume (Insertion Loss), return consume (Return Loss) and transmit port TP and the receiving port RP1 of transmit port TP.Wherein insert consume and represent with solid line, return consume represents with long dotted line, and isolation represents with short dash line.The frequency of operation of transmit port TP is 13.75～14.5GHz.The measurement numerical value that form 1 is Fig. 3:
Form 1
From form 1, transmit port TP has good usefulness in frequency of operation, inserts consume and shows that at least 94.6% transmission signal TX can be passed to universal port CMP by transmit port TP.Return consume shows that being less than 1.16% transmission signal TX reflexes to transmit port TP.The isolation of transmit port TP and receiving port RP1 approaches 0%, between the two almost without signal transmission.
Please refer to Fig. 4, Fig. 4 has illustrated the isolation of the insertion consume of receiving port RP1, return consume and receiving port RP1 and transmit port TP.Wherein insert consume and represent with solid line, return consume represents with long dotted line, and isolation represents with short dash line.The frequency of operation of receiving port RP1 is 10.7～12.75GHz.The measurement numerical value that form 2 is Fig. 4:
Form 2
From form 2, receiving port RP1 has good usefulness in frequency of operation, inserts consume and shows that at least 92.5% orthogonal polarization reception signal RX1 can be passed to receiving port RP1 by universal port CMP.Return consume shows that being less than 0.85% orthogonal polarization receives signal RX1 and reflex to receiving port RP1.The isolation of receiving port RP1 and transmit port TP approaches 0%, between the two almost without signal transmission.
In sum, the present invention couples the connectivity port 132 with bending B1 between high pass filter 133 and power divider 131, except dwindling area and the volume of separation filter 13 entirety, under the design of collocation staged transducer 22, can making to end reflecting surface CO reflection orthogonal polarization, to receive the effect of signal RX1 better, also can improve the isolation between receiving port RP1 and transmit port TP.The design of multiple bending B1 and B2 can make high pass filter 133 in meandering shape, so the area of high pass filter 133 further can be dwindled, and is equivalent to reduce area and the volume of separation filter 13 and waveguide 10 entirety.Therefore, the present invention can reduce weight and the manufacturing cost of separation filter 13 and waveguide 10, and promotes engineering staff and install the convenience of satellite communication transceiver, also maintains tolerance and the fail safe of satellite communication transceiver.
The foregoing is only preferred embodiment of the present invention, all equalizations of doing according to claim of the present invention change and modify, and all should belong to covering scope of the present invention.
Claims (10)
1. a separation filter, for a waveguide, includes:
One power divider, is used for transmitting a transmission signal and one first orthogonal polarization and receives signal;
One first low pass filter, is coupled to this power divider, is used for filtering this transmission signal, and transmits this first orthogonal polarization reception signal;
One connectivity port, is coupled to this power divider, has one first bending, is used for transmitting this transmission signal; And
One high pass filter, is coupled to this connectivity port, is used for filtering this first orthogonal polarization and receives signal, and transmit this transmission signal.
2. separation filter as claimed in claim 1, wherein this high pass filter includes:
One conducting part, includes multiple the second bendings, makes this high pass filter be a serpentine shape;
One first staged transducer, is formed between one end and this first bending of this conducting part, is used for transmitting this transmission signal, and is used as a cut-off reflecting surface of this first orthogonal polarization reception signal; And
One second-order ladder type transducer, is formed at the other end of this conducting part, is used for transmitting this transmission signal.
3. separation filter as claimed in claim 2, wherein the plurality of the second bending is each other at a distance of a spacing.
4. separation filter as claimed in claim 1, wherein this first low pass filter includes the 3rd staged transducer, the 3rd staged transducer is formed between this first low pass filter and this power divider, is used for transmitting this first orthogonal polarization and receives signal.
5. separation filter as claimed in claim 1, wherein has a spacing between this high pass filter and this first low pass filter.
6. a waveguide, includes:
One separation filter;
One power divider, is used for transmitting a transmission signal and one first orthogonal polarization and receives signal;
One first low pass filter, is coupled to this power divider, is used for filtering this transmission signal, and transmits this first orthogonal polarization reception signal;
One connectivity port, is coupled to this power divider, has one first bending, is used for transmitting this transmission signal; And
One high pass filter, is coupled to this connectivity port, is used for filtering this first orthogonal polarization and receives signal, and transmit this transmission signal;
One transmit port, is coupled to this high pass filter, is used for inputting this transmission signal;
One first receiving port, is used for receiving this first orthogonal polarization and receives signal;
One second receiving port, is used for receiving one second orthogonal polarization and receives signal;
One universal port, is used for exporting this transmission signal and input one receives signal;
One second low pass filter, is coupled to this receiving port, is used for filtering this transmission signal and this first orthogonal polarization and receives signal, and transmit this second orthogonal polarization reception signal to this second receiving port; And
One orthomode transducer, be coupled to this universal port, this second low pass filter and this separation filter, be used for transmitting this transmission signal and coordinate this second low pass filter that this reception signal is separated into this first orthogonal polarization reception signal and this second orthogonal polarization reception signal.
7. waveguide as claimed in claim 6, wherein this high pass filter includes:
One conducting part, includes multiple the second bendings, makes this high pass filter be a serpentine shape;
One first staged transducer, is formed between one end and this first bending of this conducting part, is used for transmitting this transmission signal, and is used as a cut-off reflecting surface of this first orthogonal polarization reception signal; And
One second-order ladder type transducer, is formed at the other end of this conducting part, is used for transmitting this transmission signal.
8. waveguide as claimed in claim 7, wherein the plurality of the second bending is each other at a distance of a spacing.
9. waveguide as claimed in claim 6, wherein this first low pass filter includes the 3rd staged transducer, the 3rd staged transducer is formed between this first low pass filter and this power divider, is used for transmitting this first orthogonal polarization and receives signal.
10. waveguide as claimed in claim 6, wherein has a spacing between this high pass filter and this first low pass filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310001523.3A CN103915664B (en) | 2013-01-04 | 2013-01-04 | Separation filter and waveguide |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310001523.3A CN103915664B (en) | 2013-01-04 | 2013-01-04 | Separation filter and waveguide |
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| Publication Number | Publication Date |
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| CN103915664A true CN103915664A (en) | 2014-07-09 |
| CN103915664B CN103915664B (en) | 2016-08-03 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1605136A (en) * | 2001-10-22 | 2005-04-06 | 胜利微波股份有限公司 | Multiple-channel feed network |
| CN202841117U (en) * | 2012-10-15 | 2013-03-27 | 启碁科技股份有限公司 | Radio frequency transmitter-receiver set |
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2013
- 2013-01-04 CN CN201310001523.3A patent/CN103915664B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1605136A (en) * | 2001-10-22 | 2005-04-06 | 胜利微波股份有限公司 | Multiple-channel feed network |
| CN202841117U (en) * | 2012-10-15 | 2013-03-27 | 启碁科技股份有限公司 | Radio frequency transmitter-receiver set |
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| CN103915664B (en) | 2016-08-03 |
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