CN202009381U - Power detector - Google Patents
Power detector Download PDFInfo
- Publication number
- CN202009381U CN202009381U CN2011200045663U CN201120004566U CN202009381U CN 202009381 U CN202009381 U CN 202009381U CN 2011200045663 U CN2011200045663 U CN 2011200045663U CN 201120004566 U CN201120004566 U CN 201120004566U CN 202009381 U CN202009381 U CN 202009381U
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- CN
- China
- Prior art keywords
- frequency
- radio
- printed board
- power detector
- cavity
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- Expired - Fee Related
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Abstract
The utility model discloses a power detector which comprises a cavity, a printed board, a cover board, a radio-frequency connector and a radio-frequency insulator; the printed board is arranged in the cavity; the radio-frequency connector is electrically connected with a circuit on the printed board through the radio-frequency insulator; and the cover board covers the cavity. The power detector is characterized in that a radio-frequency input terminal, a radio-frequency output terminal and a DC output terminal are arranged on the printed board; a wideband coupler is arranged between the radio-frequency input terminal and the radio-frequency output terminal; and the wideband coupler sequentially passes an attenuation network, a frequency conversion detection network and a bypass network to be connected to a search DC output terminal. The power detector provided by the utility model can work in a very wide frequency band, is lower in cost and simple in installation, can be used independently or in an embedded manner, and is exempted from debugging.
Description
Technical field
The utility model relates to transmission of microwave communication signal and signal remote monitor supervision area, relates in particular to a kind of power detector.
Background technology
The wave detector that adopts in the microwave current communications all is to use the detector diode direct detection, mainly is in low-frequency range, and the high band detection is not come out, and general high band does not all have the power monitoring function.
The utility model content
In view of the problems referred to above of prior art, the purpose of this utility model provides a kind of simple in structure, and can be in a kind of special frequency channel the high wave detector of the good consistency of detecting circuit flatness.
To achieve these goals, the utility model provides a kind of power detector, comprise cavity, printed board, cover plate, radio-frequency joint and radio frequency insulator, described printed board is located in the described cavity, described radio-frequency joint is electrically connected with circuit in the described printed board by described radio frequency insulator, described cover plate covers on described cavity, comprise rf inputs in the described printed board, radio-frequency (RF) output end and dc output end, be provided with wide-band coupler between described rf inputs and the radio-frequency (RF) output end, described wide-band coupler passes through attenuation network successively, frequency conversion detection network, bypass network is connected to the search dc output end.
As preferably, described cover plate is fixed by trip bolt.
As preferably, described radio-frequency joint is a sub-miniature A connector.
As preferably, described wide-band coupler comprises lumped parameter filter capacitor and distributed constant matching capacitance.
The beneficial effects of the utility model are: can be operated in very wide frequency range, and cost is lower, installs simply, can use separately also and can embeddedly use, exempt from debugging.
Description of drawings
Fig. 1 is the Knock-Down Component schematic diagram of power detector of the present utility model.
Fig. 2 is the generalized section of power detector of the present utility model.
Fig. 3 is the circuit theory diagrams of power detector of the present utility model.
Embodiment
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing.
As shown in Figure 1 to Figure 3, the power detector of present embodiment comprises cavity 1, printed board 2, cover plate 5, radio-frequency joint 3 and radio frequency insulator 4, described printed board 2 is located in the described cavity 1, described radio-frequency joint 3 is electrically connected with circuit in the described printed board 2 by described radio frequency insulator 4, described cover plate 5 covers on described cavity 1, comprise rf inputs in the described printed board 2, radio-frequency (RF) output end and dc output end, be provided with wide-band coupler between described rf inputs (RFin) and the radio-frequency (RF) output end (RFout), described wide-band coupler passes through attenuation network successively, frequency conversion detection network, bypass network is connected to search dc output end (DCout).
As preferably, described cover plate 5 is fixing by trip bolt 6.
As preferably, described radio-frequency joint is a sub-miniature A connector.
As preferably, described wide-band coupler comprises lumped parameter filter capacitor and distributed constant matching capacitance.
The coupling and the attenuation network that add a relevant frequency range before the detection module, and the part of sampling carried out mixing become lower frequency and come detection to become direct voltage again, export the detecting circuit end simultaneously and add and eliminate voltage ripple with enhanced stability.
Before the assembling, by wide-band coupler of ADS software emulation, produce printed board according to simulation result again, to be attenuation network accordingly, in frequency conversion detection network and the welding of bypass network required device,, refill 4 insulators 4 through the wave detector cavity 1 of packing into after the check, and 4 SMA detachable connectors 3, it is fixing to load onto cover plate 5 usefulness trip bolts 6 at last.
Its operation principle is: the wide-band coupler by emulation takes out signal, through attenuation network, signal is reduced in the input signal magnitude range of frequency converter needs, draw low frequency signal by frequency conversion, carry out detection by wave detector again and become direct voltage, take out whole direct current filter sample AC signal by bypass network at last, satisfy user's demand.
The power detector of present embodiment can be operated in very wide frequency range, and cost is lower, installs simply, can use separately also and can embeddedly use, and exempts from debugging.At least have following advantage:
1, reduced the volume of product, realized integrated, miniaturization, it is convenient to change;
2, the acyclic homologically trioial examination be can realize, reliability of products and consistency increased;
3, single detection module is cheap, the cost performance height.
Above embodiment is an exemplary embodiment of the present utility model only, is not used in restriction the utility model, and protection range of the present utility model is defined by the claims.Those skilled in the art can make various modifications or be equal to replacement the utility model in essence of the present utility model and protection range, this modification or be equal to replacement and also should be considered as dropping in the protection range of the present utility model.
Claims (4)
1. power detector, comprise cavity, printed board, cover plate, radio-frequency joint and radio frequency insulator, described printed board is located in the described cavity, described radio-frequency joint is electrically connected with circuit in the described printed board by described radio frequency insulator, described cover plate covers on described cavity, it is characterized in that, comprise rf inputs in the described printed board, radio-frequency (RF) output end and dc output end, be provided with wide-band coupler between described rf inputs and the radio-frequency (RF) output end, described wide-band coupler passes through attenuation network successively, frequency conversion detection network, bypass network is connected to the search dc output end.
2. power detector according to claim 1 is characterized in that described cover plate is fixed by trip bolt.
3. power detector according to claim 1 is characterized in that, described radio-frequency joint is a sub-miniature A connector.
4. power detector according to claim 1 is characterized in that, described wide-band coupler comprises lumped parameter filter capacitor and distributed constant matching capacitance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200045663U CN202009381U (en) | 2011-01-07 | 2011-01-07 | Power detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200045663U CN202009381U (en) | 2011-01-07 | 2011-01-07 | Power detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202009381U true CN202009381U (en) | 2011-10-12 |
Family
ID=44751033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200045663U Expired - Fee Related CN202009381U (en) | 2011-01-07 | 2011-01-07 | Power detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202009381U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10476124B2 (en) | 2015-04-17 | 2019-11-12 | Bird Technologies Group Inc. | Radio frequency power sensor having a non-directional coupler |
-
2011
- 2011-01-07 CN CN2011200045663U patent/CN202009381U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10476124B2 (en) | 2015-04-17 | 2019-11-12 | Bird Technologies Group Inc. | Radio frequency power sensor having a non-directional coupler |
| US11211681B2 (en) | 2015-04-17 | 2021-12-28 | Bird Technologies Group Inc. | Radio frequency power sensor having a non-directional coupler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111012 Termination date: 20120107 |