JPS57206108A - Bi-directional amplifier - Google Patents
Bi-directional amplifierInfo
- Publication number
- JPS57206108A JPS57206108A JP56091836A JP9183681A JPS57206108A JP S57206108 A JPS57206108 A JP S57206108A JP 56091836 A JP56091836 A JP 56091836A JP 9183681 A JP9183681 A JP 9183681A JP S57206108 A JPS57206108 A JP S57206108A
- Authority
- JP
- Japan
- Prior art keywords
- uhf
- filter
- vhf
- signal
- hpf
- 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
Landscapes
- Amplifiers (AREA)
Abstract
PURPOSE: To reduce the pass loss of a UHF band, by avoiding the passing of two times through a bi-directional branching filter for the UHF signal.
CONSTITUTION: The UHF and VHF signals pass through the HPF and LPF sides of a UHF-VHF branching filter. The UHF signal is amplified by a UHF amplifier 12 and then delivered to an output terminal 14 through an HPF within a U-V branching filter 13 of the output side. While the VHF signal delivered from a U-V branching filter 11 is applied to a bi-directional branching filter 15 and amplified by a VHF amplifier 16 after passing through an HPF. The amplified VHF signal passes through an HPF of a bi-directional branching filter 17 and then through an LPF of the filter 13 to be delivered to the terminal 14. On the other hand, the ascending signal is fed to the terminal 14 and branched through the LPF of the filter 13 and the LPF of the filter 17 and passes the LPFs of the filters 15 and 11 to be delivered to an input terminal 10.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56091836A JPS57206108A (en) | 1981-06-15 | 1981-06-15 | Bi-directional amplifier |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56091836A JPS57206108A (en) | 1981-06-15 | 1981-06-15 | Bi-directional amplifier |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57206108A true JPS57206108A (en) | 1982-12-17 |
JPS6141165B2 JPS6141165B2 (en) | 1986-09-12 |
Family
ID=14037672
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56091836A Granted JPS57206108A (en) | 1981-06-15 | 1981-06-15 | Bi-directional amplifier |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57206108A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6066531A (en) * | 1983-09-21 | 1985-04-16 | Nec Corp | Information receptacle |
JPS6066530A (en) * | 1983-09-21 | 1985-04-16 | Nec Corp | Bi-directional information transmission system |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0246773U (en) * | 1988-09-21 | 1990-03-30 |
-
1981
- 1981-06-15 JP JP56091836A patent/JPS57206108A/en active Granted
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6066531A (en) * | 1983-09-21 | 1985-04-16 | Nec Corp | Information receptacle |
JPS6066530A (en) * | 1983-09-21 | 1985-04-16 | Nec Corp | Bi-directional information transmission system |
Also Published As
Publication number | Publication date |
---|---|
JPS6141165B2 (en) | 1986-09-12 |
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