CN103943926A - Double-probe waveguide - Google Patents
Double-probe waveguide Download PDFInfo
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- CN103943926A CN103943926A CN201410192729.3A CN201410192729A CN103943926A CN 103943926 A CN103943926 A CN 103943926A CN 201410192729 A CN201410192729 A CN 201410192729A CN 103943926 A CN103943926 A CN 103943926A
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- waveguide
- probe
- rectangular waveguide
- upper cavity
- cavity
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Abstract
The invention discloses a double-probe waveguide. The double-probe waveguide comprises a hollow rectangular waveguide; the middle of the upper surface of the rectangular waveguide protrudes to form an upper cavity; the middle of the lower surface of the rectangular waveguide is concaved on the bilateral sides of the rectangular waveguide to form two symmetrical lower cavities respectively; the upper cavity and the lower cavities are communicated together to form a waveguide cavity; the edge portions of the upper surfaces of the two lower cavities protrude to form symmetrical projections respectively; the height of the projections is smaller than that of the upper cavity; a groove is formed between each projection and the upper cavity; the upper cavity comprises an input end; the two symmetrical lower cavities comprise an output end respectively; each output end is provided with a quartz probe. The double-probe waveguide is matched with an input port of a T/R module, meanwhile the waveguide microstrip transition and power allocation functions can be achieved, and accordingly the insertion loss is small in comparison with independent use of power division and probe transition, the size can be furthest saved, and the power division ratio and the standing wave performance are good.
Description
Technical field
The present invention relates to Connectors for Active Phased Array Radar antenna T/R module field, particularly a kind of pair of probe waveguide.
Background technology
Since the thirties in 20th century, radar came out, Radar Technology has obtained high speed development in World War II, and after the nineties, Connectors for Active Phased Array Radar has become the developing main flow of radar.In every Connectors for Active Phased Array Radar, the T/R assembly that comprises a plurality of quantity, it not only completes reception task but also completes launch mission, also antenna is carried out to phasescan.Each T/R assembly is just equivalent to the tuner of an ordinary radar, has both included emission power amplifier, has again the functional circuits such as low noise amplifier, phase shifter and wave beam control circuit.T/R assembly as one of Connectors for Active Phased Array Radar core component, along with modern science and technology is more and more higher to the requirement of Connectors for Active Phased Array Radar, therefore each performance of T/R assembly is also had higher requirement, T/R assembly requires that integrated level is high, high conformity, volume are little, lightweight, can adapt to different workbenches and environment.
As shown in accompanying drawing 1-2, the T/R module of inventor's design comprises the housing 1 for mounting circuit and functional module, housing 1 inside is welded with the heat pipe 2 that heat in module can be derived fast, housing 1 is comprised of the symmetrical metal structure plate 3 of tow sides, and the surface of structural slab 3 is furnished with the functional templates such as LTCC module 31, ripple control daughter board 32, high frequency substrate.The input port of each antenna of positive and negative in this T/R module, the feed design of input port 5 that is positioned at each LTCC module 31 of positive and negative symmetry adopts microstrip transmission line 4, and need to carry out constant amplitude feed to each input port 5.Because LTCC module 31 feed front ends adopt microstrip transmission line, rear end feeding network need to adopt two probe waveguide design, so need to complete the function of Waveguide-microbelt transition and power division at 34 places, T/R module input port, the T/R module whole maximum thickness of inventor's design is 10mm, in the 34 place's small spaces of input port, need to mate two probe waveguides to module housing both sides constant amplitude feed, in prior art, do not provide the two probe waveguide solutions that adapt to this design.
Summary of the invention
The object of the invention is to overcome existing above-mentioned deficiency in prior art, a kind of pair of probe waveguide is provided, it completes in module porch module housing both sides constant amplitude feed, this pair of probe waveguide completes Waveguide-microbelt transition and power dividing function simultaneously, Insertion Loss than independently make to divide hard and probe transitions little.
In order to realize foregoing invention object, the technical solution used in the present invention is:
A kind of pair of probe waveguide, comprise hollow rectangular waveguide, described rectangular waveguide upper surface middle part convexes to form upper cavity, described rectangular waveguide lower surface medial recess forms two symmetrical lower chambers in described rectangular waveguide both sides, described upper cavity and the lower chamber formation waveguide cavity that is connected together, the upper surface edge part of two described lower chambers convexes to form symmetrical protrusion, the height of described protrusion is less than the height of described upper cavity, and between protrusion and described upper cavity, form groove described in each, described upper cavity has an input, two symmetrical lower chambers respectively have an output, described in each, output is provided with quartz probe.
Preferably, the output of described lower chamber is provided with probe mounting groove, and described quartz probe is pasted and is installed in this probe mounting groove.
Preferably, the area of described rectangular waveguide lower surface medial recess part is greater than the area of described rectangular waveguide upper surface middle part bossing.
Preferably, the shape of described rectangular waveguide lower surface medial recess part and described rectangular waveguide upper surface middle part bossing is rectangle.
Preferably, the middle part of described rectangular waveguide lower surface medial recess part is recessed to form groove again, in this groove, diaphragm is installed.
Preferably, described quartz probe is connected and composed successively by paster, high resistant line, 50 ohm microstrip.
Preferably, described waveguide cavity has two waveguide short faces, and described two waveguide short faces i.e. the lateral surface of two described lower chambers.
compared with prior art, beneficial effect of the present invention:
The two probe waveguides of the present invention are adaptive with T/R module input port structure, complete Waveguide-microbelt transition and power dividing function simultaneously, Insertion Loss than independently make to divide hard and probe transitions little, can at utmost save size, merit is divided when standing wave better performances.
accompanying drawing explanation:
Fig. 1 is the T/R module diagram that inventor designs;
Fig. 2 is another schematic diagram of T/R module that inventor designs;
Fig. 3 is the two probe waveguide simulation model structural representations in the embodiment of the present invention;
Fig. 4 is the stereogram of Fig. 3;
Fig. 5 installs the T/R module diagram of two probe waveguides in the embodiment of the present invention;
Fig. 6 is the simulation result figure of the two probe waveguides in the embodiment of the present invention.
Embodiment
Below in conjunction with embodiment, the present invention is described in further detail.But this should be interpreted as to the scope of the above-mentioned theme of the present invention only limits to following embodiment, all technology realizing based on content of the present invention all belong to scope of the present invention.
Two probe waveguides as shown in Figure 3, comprise hollow rectangular waveguide, described rectangular waveguide upper surface middle part convexes to form upper cavity 10, described rectangular waveguide lower surface medial recess forms two symmetrical lower chambers 20 in described rectangular waveguide both sides, described upper cavity 10 and the lower chamber 20 formation waveguide cavity that is connected together, the upper surface edge part of two described lower chambers 20 convexes to form symmetrical protrusion 201, the height of described protrusion 201 is less than the height of described upper cavity 10, and between protrusion 201 and described upper cavity 10, form groove described in each, described upper cavity 10 has an input 101, two symmetrical lower chambers 20 respectively have an output 202, described in each, output 202 is provided with quartz probe 30.This pair of probe waveguide and T/R module input port shape are adaptive, complete Waveguide-microbelt transition and power dividing function simultaneously.
Concrete, the output 202 of described lower chamber 20 is provided with probe mounting groove (not shown), and described quartz probe 30 is pasted and is installed in this probe mounting groove.The area of described rectangular waveguide lower surface medial recess part is greater than the area of described rectangular waveguide upper surface middle part bossing.The shape of described rectangular waveguide lower surface medial recess part and described rectangular waveguide upper surface middle part bossing is rectangle.The middle part of described rectangular waveguide lower surface medial recess part is recessed to form groove again, and diaphragm 40 is installed in this groove.Described quartz probe 30 is connected and composed successively by paster, high resistant line, 50 ohm microstrip.Described waveguide cavity has two waveguide short faces 50, and described two waveguide short faces 50 i.e. the lateral surface of two described lower chambers 20.
Referring to Fig. 1, Fig. 5 and Fig. 6, this pair of probe waveguide is installed on 34 places, T/R module input port, 34 places, T/R module input port are provided with waveguide cover plate, two probe waveguiding structure cavitys of structure are offered and are formed waveguide cavity 11 on waveguide cover plate as shown in Figure 3, in Fig. 5, there are two symmetrically arranged waveguide cavity 11, be respectively a two probe waveguide, these waveguide cavity 11 shapes are identical with the two probe waveguiding structures shown in Fig. 3, the constant amplitude feed that two probe waveguides realize module both sides LTCC module by microstrip transmission line 4.
This pair of probe waveguide operation principle: pumping signal input, be divided into two, to tow sides, carry out feed, and then through the high frequency substrate in quartz probe, TR module, carry out merit and divide syntheticly simultaneously, be connected with LTCC module input gold thread.The same with general probe transitions, two probes need to be realized the transition to waveguide by microstrip line transmission.Paster radiation by probe, motivates TE10 pattern in waveguide cavity, and the reflection by waveguide short face is transmitted its direction to needs.Two probe merits divide with waveguide in T shape merit divide similar.Geometry symmetry by lower chamber guarantees that output amplitude is that constant amplitude is exported, by regulating the diaphragm 40 of T-section sudden change place (being the groove that rectangular waveguide lower surface medial recess middle part is partly recessed to form again) to carry out control inputs standing wave.
The of the present invention pair of probe waveguide simulation result and Electric Field Distribution as shown in Figure 6, two probe transitions structure S parameters, two be less than-32dB of probe transitions structure S11, according to test result in early stage, the about 0.5dB of Insertion Loss.The two probe waveguides of the present invention complete Waveguide-microbelt transition and power dividing function simultaneously, Insertion Loss than independently make to divide hard and probe transitions little, can at utmost save size, merit is divided when standing wave better performances.
By reference to the accompanying drawings the specific embodiment of the present invention is had been described in detail above, but the present invention is not restricted to above-mentioned execution mode, in the spirit and scope situation of claim that does not depart from the application, those skilled in the art can make various modifications or remodeling.
Claims (7)
1. a two probe waveguide, it is characterized in that, comprise hollow rectangular waveguide, described rectangular waveguide upper surface middle part convexes to form upper cavity, described rectangular waveguide lower surface medial recess forms two symmetrical lower chambers in described rectangular waveguide both sides, described upper cavity and the lower chamber formation waveguide cavity that is connected together, the upper surface edge part of two described lower chambers convexes to form symmetrical protrusion, the height of described protrusion is less than the height of described upper cavity, and between protrusion and described upper cavity, form groove described in each, described upper cavity has an input, two symmetrical lower chambers respectively have an output, described in each, output is provided with quartz probe.
2. according to claim 1 pair of probe waveguide, is characterized in that, the output of described lower chamber is provided with probe mounting groove, and described quartz probe is pasted and is installed in this probe mounting groove.
3. according to claim 1 pair of probe waveguide, is characterized in that, the area of described rectangular waveguide lower surface medial recess part is greater than the area of described rectangular waveguide upper surface middle part bossing.
4. according to claim 1 pair of probe waveguide, is characterized in that, the shape of described rectangular waveguide lower surface medial recess part and described rectangular waveguide upper surface middle part bossing is rectangle.
5. according to the two probe waveguides described in claim 3 or 4, it is characterized in that, the middle part of described rectangular waveguide lower surface medial recess part is recessed to form groove again, in this groove, diaphragm is installed.
6. according to the two probe waveguides described in claim 1-4 any one, it is characterized in that, described quartz probe is connected and composed successively by paster, high resistant line, 50 ohm microstrip.
7. according to claim 1 pair of probe waveguide, is characterized in that, described waveguide cavity has two waveguide short faces, and described two waveguide short faces i.e. the lateral surface of two described lower chambers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410192729.3A CN103943926A (en) | 2014-05-08 | 2014-05-08 | Double-probe waveguide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410192729.3A CN103943926A (en) | 2014-05-08 | 2014-05-08 | Double-probe waveguide |
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| Publication Number | Publication Date |
|---|---|
| CN103943926A true CN103943926A (en) | 2014-07-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410192729.3A Pending CN103943926A (en) | 2014-05-08 | 2014-05-08 | Double-probe waveguide |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107819441A (en) * | 2017-12-08 | 2018-03-20 | 成都聚利中宇科技有限公司 | high frequency power amplifier package module |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020180555A1 (en) * | 2001-06-01 | 2002-12-05 | Rf Technologies Corporation | Apparatus and method for in-process high power variable power division |
| CN102122747A (en) * | 2010-12-28 | 2011-07-13 | 四川龙瑞微电子有限公司 | Microwave power distributor |
| CN203813005U (en) * | 2014-05-08 | 2014-09-03 | 成都雷电微力科技有限公司 | Dual-probe waveguide |
-
2014
- 2014-05-08 CN CN201410192729.3A patent/CN103943926A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020180555A1 (en) * | 2001-06-01 | 2002-12-05 | Rf Technologies Corporation | Apparatus and method for in-process high power variable power division |
| CN102122747A (en) * | 2010-12-28 | 2011-07-13 | 四川龙瑞微电子有限公司 | Microwave power distributor |
| CN203813005U (en) * | 2014-05-08 | 2014-09-03 | 成都雷电微力科技有限公司 | Dual-probe waveguide |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107819441A (en) * | 2017-12-08 | 2018-03-20 | 成都聚利中宇科技有限公司 | high frequency power amplifier package module |
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Application publication date: 20140723 |