JPS5573124A - Comb-line type filter - Google Patents
Comb-line type filterInfo
- Publication number
- JPS5573124A JPS5573124A JP14534278A JP14534278A JPS5573124A JP S5573124 A JPS5573124 A JP S5573124A JP 14534278 A JP14534278 A JP 14534278A JP 14534278 A JP14534278 A JP 14534278A JP S5573124 A JPS5573124 A JP S5573124A
- Authority
- JP
- Japan
- Prior art keywords
- comb
- line
- featuring
- filter
- ctd5
- 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
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H15/00—Transversal filters
Landscapes
- Filters That Use Time-Delay Elements (AREA)
Abstract
PURPOSE:To obtain a small-size comb-line BPF featuring the steady frequency spectrum cycle by constituting the digital filter featuring transmission function H(Z) with the delay element comprising the N steps of charge transfer element CTD. CONSTITUTION:The comb-line filter consists of delay circuits 5 and 6 comprising CTD as well as adders 3 and 4 composed of the operational amplifier plus multiplier circuits 7-10 which give the multipliers of the denominator and the molecule of transmission function H(ZN) each. In such comb-line filter, the driving is given by the driving pulse featuring frequency Nf(f=1/T), where the delay time of CTD5 and 6 is T and the number of steps of the unit elements forming CTD5 and 6 is N respectively. Then the filter characteristics shown in the figure is given to the signal applied to input terminal 1. The circuit of such constitution features the steady cycle of the frequency spectrum, which can give the desired comb-line band pass characteristics and the comb-line notch characteristics suited for the small-size integration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14534278A JPS5573124A (en) | 1978-11-27 | 1978-11-27 | Comb-line type filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14534278A JPS5573124A (en) | 1978-11-27 | 1978-11-27 | Comb-line type filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5573124A true JPS5573124A (en) | 1980-06-02 |
Family
ID=15382953
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14534278A Pending JPS5573124A (en) | 1978-11-27 | 1978-11-27 | Comb-line type filter |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5573124A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5176055A (en) * | 1974-12-26 | 1976-07-01 | Anritsu Electric Co Ltd | KOSOKUDEIJITARU FUIRUTA |
-
1978
- 1978-11-27 JP JP14534278A patent/JPS5573124A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5176055A (en) * | 1974-12-26 | 1976-07-01 | Anritsu Electric Co Ltd | KOSOKUDEIJITARU FUIRUTA |
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