JPS5553914A - Filter circuit - Google Patents
Filter circuitInfo
- Publication number
- JPS5553914A JPS5553914A JP12803478A JP12803478A JPS5553914A JP S5553914 A JPS5553914 A JP S5553914A JP 12803478 A JP12803478 A JP 12803478A JP 12803478 A JP12803478 A JP 12803478A JP S5553914 A JPS5553914 A JP S5553914A
- Authority
- JP
- Japan
- Prior art keywords
- featuring
- filter circuit
- signal
- resistance
- 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.)
- Pending
Links
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
- Filters And Equalizers (AREA)
Abstract
PURPOSE: To secure passing only for the basic wave by forming the filter circuit with the fixed curcuit constant, thus absorbing the higher harmonic into the filter circuit with no reflection toward the input side.
CONSTITUTION: Line 2 of characteristic impedance Z0 and featuring the length of λS/8, λS: basic wavelength at pass band, resistance 4 featuring resistance value R0 equal to impedance Z0 plus lines 5 and 6 featuring λS/4 length are provided between input/output ports 1 and 3. Thus the filter circuit is formed. Now with supply of the signal featuring basic wave frequency fS from port 1, signal fS has virtually no attenuation to pass through port 3. Then with supply of 2nd higher harmonic 2fS, line 6 is short-circuited to then feature the open state when viewed from port 1. On the other hand, line 5 is short-circuited to the earth end. Thus this circuit is terminated by resistance R0 to signal 2fS. In such way, the blocked signal is not reflected but absorbed by resistance 4.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12803478A JPS5553914A (en) | 1978-10-18 | 1978-10-18 | Filter circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12803478A JPS5553914A (en) | 1978-10-18 | 1978-10-18 | Filter circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5553914A true JPS5553914A (en) | 1980-04-19 |
Family
ID=14974872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12803478A Pending JPS5553914A (en) | 1978-10-18 | 1978-10-18 | Filter circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5553914A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014220751A (en) * | 2013-05-10 | 2014-11-20 | 三菱電機株式会社 | Harmonic processing circuit |
-
1978
- 1978-10-18 JP JP12803478A patent/JPS5553914A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2014220751A (en) * | 2013-05-10 | 2014-11-20 | 三菱電機株式会社 | Harmonic processing circuit |
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