CN2526988Y - S wave band five-position electrocontrolled attenuator module - Google Patents
S wave band five-position electrocontrolled attenuator module Download PDFInfo
- Publication number
- CN2526988Y CN2526988Y CN 02221571 CN02221571U CN2526988Y CN 2526988 Y CN2526988 Y CN 2526988Y CN 02221571 CN02221571 CN 02221571 CN 02221571 U CN02221571 U CN 02221571U CN 2526988 Y CN2526988 Y CN 2526988Y
- Authority
- CN
- China
- Prior art keywords
- attenuator
- port
- diode
- voltage
- output port
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model provides an S band fifth position electronic control attenuator module. The module is a circuit substrate, welded in a shell. The module comprises a PIN diode four bits stepping attenuator (1) and a double-end absorbed electronic control attenuator (2) which are connected with each other. The stepping attenuator (1) with a radio frequency input port (J1) is connected with a direct current control port (E1, E2, E3, E4) through an attenuation network (Li, Ri, Ci); the electronic control attenuator (2) is provided with a radio frequency output port (J2) and the direct current control port (E5); a diode series branch (D5, D6, D7, D8) is connected parallel between an output port (J2) and an input port (J1).
Description
Technical field:
The utility model is relevant with the S-band step attenuator.
Technical background:
More existing S-band step attenuator adopts switching line to add the resistance attenuation network and realizes that step-length preferably can be accomplished 0.5dB; The insertion loss is big, and five voltage-controlled attenuator Insertion Loss of a S-band are generally 3～4dB; Standing-wave ratio is bigger, is generally VSWR≤1.5; Phase change is bigger during decay, is generally in 10 °; Drive current is very big, the decline electric current of needs ± 150mA of common five steps.
The utility model content:
The purpose of this utility model provides that a kind of volume is little, power consumption is little, attenuation accuracy is high, Insertion Loss is little, standing-wave ratio is little and do not have five voltage-controlled attenuator modules of the integrated S-band of phase type.
The utility model is achieved in that
Five voltage-controlled attenuator modules of the utility model S-band are connected to form by four step attenuators of PIN diode (1) and the voltage-controlled attenuator (2) that a both-end absorbs, and step attenuator (1) has rf inputs mouth (J
1) respectively by attenuation network (Li, Ri, Ci) and DC control port (E
1, E
2, E
3, E
4) connect, voltage-controlled attenuator (2) has radio-frequency (RF) output end mouth (J
2) and DC control port (E
5), output port (J
2) and input port (J
1) between the diode connected in parallel series arm is arranged.
The utility model rf inputs mouth (J
1) the one tunnel diode (D through the positive polyphone
7, D
8) and output port (J
2) connect, other end road is through the diode (D of series opposite
5, D
6) be connected diode (D with output port
7, D
8) between attenuation network (R is arranged
5, R
6, R
7), input port (J
1) and control port (E
1, E
2, E
3, E
4) between be attenuation network (L in parallel
1, R
1, C
1, L
2, R
2, C
2, L
3, R
3, C
3, L
4, R
4, C
4).
The utility model input (J
1) and capacitance (C
5) connect output port and capacitance (C
6) connect.
The loaded line principle that adopts the utility model designs a kind of novel high accuracy and hangs down the step attenuator of step-length.Step attenuator step-length with this principle design can be accomplished 0.1dB, and has advantages such as the loss of insertion is little, standing-wave ratio is little, do not have phase change when decaying, drive current is little.The premium properties that has other method for designing to be difficult to arrive.
Description of drawings:
The block diagram of Fig. 1 utility model.
The circuit theory diagrams of Fig. 2 utility model.
The front view of Fig. 3 utility model.
The vertical view of Fig. 4 utility model.
The left view of Fig. 5 utility model.
Embodiment:
The utility model is made up of the voltage-controlled attenuator (2) of four step attenuators of a high accuracy PIN diode (1) and a both-end absorption.Wherein step attenuator adopts four groups of loaded line principles to realize, absorption voltage-controlled attenuator adopts the switching line principle to realize.Radiofrequency signal is from J
1Input, if when not needing to decay, (E
1, E
2, E
3, E
4) four DC control ports all add+signal of 4.8v, (D
1, D
2, D
3, D
4) four switches are in off state, attenuation network is inoperative to radiofrequency signal, and radiofrequency signal is directly from the main transmission line to the attenuator on (2).The decay of a certain if desired position, DC control end Ei (i=1～4) adds-the 4.8v signal, and Di (i=1～4) switch is got through, and the attenuation network that LiRiCi (i=1～4) forms works, radiofrequency signal produces the decay of i position attenuation, wherein attenuation Δ A during i=1
1=0.2dB, during i=2, attenuation Δ A
2=0.4dB; During i=3, attenuation Δ A
3=0.8dB; Attenuation Δ A during i=4
4=1.6dB.Four step attenuators have 15 kinds of attenuation states through combination, and step-length is 0.2dB, and the maximum attenuation amount is 3dB.Absorption voltage-controlled attenuator is realized by the switching line principle, as DC control end E
5Add+during the 4.8v signal, D
5, D
6Branch road is got through, and radiofrequency signal branch road is thus worked as E by not decaying
5Add-during the 4.8v signal, D
7, D
8Branch road is got through, and radiofrequency signal is along D
7, D
8The branch road transmission is by R
5, R
6, R
7The attenuation network of forming is produced the decay of 15dB.No matter walk that branch road radiofrequency signal all from J
2Port output, wherein C
5, C
6Be capacitance, stop the leakage of direct current signal.
The utility model is selected RT/dusoid 5880 circuit materials for use, make circuit substrate by technologies such as photoetching, burn into plating, treated circuit substrate uses the solder sintering in module housing, the heart such as PIN diode, mos capacitance sheet carries out secondary by technologies such as bonding die, bondings on circuit substrate integrated, reaches our desired index through debugging and screening.
The main electric parameters of module is as follows in the utility model:
(I) operating frequency: 3.1～3.4G11z
(II) each port standing-wave ratio:＜1.35
(III) insert loss:＜1.60
(IV) basic attenuation: 0.2dB, 0.4dB, 0.8dB, 1.6dB, 15dB
(V) attenuation accuracy :≤0.0dB (Δ A≤1dB)≤0.15dB (Δ A≤3dB)
(VI) 15 amplitude scintillations :≤± 0.7dB
(VII) insert phase deviation (＜3dB:＜4 °)
Claims (3)
1, five voltage-controlled attenuator modules of S-band is characterized in that being connected to form by four step attenuators of PIN diode (1) and the voltage-controlled attenuator (2) that a both-end absorbs, and step attenuator (1) has rf inputs mouth (J
1) respectively by attenuation network (Li, Ri, Ci) and DC control port (E
1, E
2, E
3, E
4) connect, voltage-controlled attenuator (2) has radio-frequency (RF) output end mouth (J
2) and DC control port (E
5), output port (J
2) and input port (J
1) between the diode connected in parallel series arm is arranged.
2, attenuator module according to claim 1 is characterized in that rf inputs mouth (J
1) the one tunnel diode (D through the positive polyphone
7, D
8) and output port (J
2) connect, other end road is through the diode (D of series opposite
5, D
6) be connected diode (D with output port
7, D
8) between attenuation network (R is arranged
5, R
6, R
7), input port (J
1) and control port (E
1, E
2, E
3, E
4) between be attenuation network (L in parallel
1, R
1, C
1, L
2, R
2, C
2, L
3, R
3, C
3, L
4, R
4, C
4).
3, attenuator module according to claim 1 is characterized in that input port (J
1) and capacitance (C
5) connect output port and capacitance (C
6) connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02221571 CN2526988Y (en) | 2002-02-08 | 2002-02-08 | S wave band five-position electrocontrolled attenuator module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02221571 CN2526988Y (en) | 2002-02-08 | 2002-02-08 | S wave band five-position electrocontrolled attenuator module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2526988Y true CN2526988Y (en) | 2002-12-18 |
Family
ID=33699650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02221571 Expired - Lifetime CN2526988Y (en) | 2002-02-08 | 2002-02-08 | S wave band five-position electrocontrolled attenuator module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2526988Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109474256A (en) * | 2018-10-15 | 2019-03-15 | 成都信息工程大学 | A kind of radiofrequency signal precision stepping damped system and attenuator circuit |
| CN112653422A (en) * | 2020-11-30 | 2021-04-13 | 北京无线电测量研究所 | Numerical control attenuator chip |
-
2002
- 2002-02-08 CN CN 02221571 patent/CN2526988Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109474256A (en) * | 2018-10-15 | 2019-03-15 | 成都信息工程大学 | A kind of radiofrequency signal precision stepping damped system and attenuator circuit |
| CN112653422A (en) * | 2020-11-30 | 2021-04-13 | 北京无线电测量研究所 | Numerical control attenuator chip |
| CN112653422B (en) * | 2020-11-30 | 2022-11-25 | 北京无线电测量研究所 | Numerical control attenuator chip |
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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 | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120208 Granted publication date: 20021218 |