JPS5488047A - Filter - Google Patents
FilterInfo
- Publication number
- JPS5488047A JPS5488047A JP15679777A JP15679777A JPS5488047A JP S5488047 A JPS5488047 A JP S5488047A JP 15679777 A JP15679777 A JP 15679777A JP 15679777 A JP15679777 A JP 15679777A JP S5488047 A JPS5488047 A JP S5488047A
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- impedance
- resistor
- inter
- amplifier
- 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.)
- Granted
Links
Classifications
-
- 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
- H01P1/201—Filters for transverse electromagnetic waves
- H01P1/203—Strip line filters
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Filters And Equalizers (AREA)
Abstract
PURPOSE:To obtain the excellent characteristics with a simple circuit constitution by using the characteristic impedance circuit formed by combining the specified strip line with the resistor for the inter-step filter of the amplifier which is used for the high frequency band the concentrated constant circuit cannot process. CONSTITUTION:Capacitor C2 of a serial arm functioning as the pi-type circuit is connected between input terminal 7 and output terminal 8, and resistor R2 and R3 equal to the characterisitc impedance are provided between terminal 7, 8 and the earth, along with strip line 3 and 5 featuring the lenght of (2n + 1) /4 (n:positive integer) times as long as the wavelength of the given central frequency, plus serial circuit 4 and 6. And the impedance at the central frequency to which the value of capacitor C2 functioning as the serial arm is applied is selected to such value that it can be ignored in comparison with the characteristic impedance of the input/output side. Thus, the inter-step filter can be formed for the amplifier which can be used for the high frequency band.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15679777A JPS5925485B2 (en) | 1977-12-26 | 1977-12-26 | filter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15679777A JPS5925485B2 (en) | 1977-12-26 | 1977-12-26 | filter |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5488047A true JPS5488047A (en) | 1979-07-12 |
JPS5925485B2 JPS5925485B2 (en) | 1984-06-18 |
Family
ID=15635516
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15679777A Expired JPS5925485B2 (en) | 1977-12-26 | 1977-12-26 | filter |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5925485B2 (en) |
-
1977
- 1977-12-26 JP JP15679777A patent/JPS5925485B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5925485B2 (en) | 1984-06-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
LAPS | Cancellation because of no payment of annual fees |