JPH0444739U - - Google Patents
Info
- Publication number
- JPH0444739U JPH0444739U JP12973790U JP12973790U JPH0444739U JP H0444739 U JPH0444739 U JP H0444739U JP 12973790 U JP12973790 U JP 12973790U JP 12973790 U JP12973790 U JP 12973790U JP H0444739 U JPH0444739 U JP H0444739U
- Authority
- JP
- Japan
- Prior art keywords
- section
- uhf
- tuning
- tuner
- input
- 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
- 230000010355 oscillation Effects 0.000 claims description 9
- 238000005192 partition Methods 0.000 claims 1
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Structure Of Receivers (AREA)
Description
第１図はこの考案の一実施例であるＵＨＦの入
力同調部、段間１次同調部、段間２次同調部の各
区画をベース長手方向に長くなるようにし、それ
ぞれの同調用インダクタンス素子にコ字形分布定
数線路を用いた小型で薄型なチユーナの平面図で
ある。第２図はＵＨＦ局部発振部にも同調用イン
ダクタンス素子にコ字形分布定数線路を用いた小
型で薄型なチユーナの平面図である。第３図はこ
の考案の他の実施例の平面図である。第４図はコ
字形分布定数線路の一例を示す図である。第５図
はコ字形分布定数線路の挿入された様子を示すチ
ユーナの厚み方向の断面図である。第６図はＵＨ
Ｆ−ＶＨＦコンビネーシヨンの一般的な回路ブロ
ツク図である。第７図はＵＨＦの同調用インダク
タンス素子に空芯コイルを用いた従来の小型で薄
型なチユーナの平面図である。
１ａ……ＵＨＦ入力同調部、５ａ……ＵＨＦ段
間１次同調部、５ｂ……ＵＨＦ段間２次同調部、
６ａ……ＶＨＦ段間１次・２次同調部、７ａ……
ＵＨＦ局部発振部、９ａ……ＵＨＦＭｉＸ部、１
０ａ……ＶＨＦＭｉＸ．ＩＦＡｍｐ部、１１ａ…
…ＩＦ同調部、１３……入力端子、１４……出力
端子、１５ａ〜１５ｆ……電源端子、１８ａ……
チユーナベース、２１ａ……ＵＨＦ入力結合ルー
プ、２２ａ……ＵＨＦ入力同調用コ字形分布定数
線路、２３ａ……ＵＨＦ段間１次同調用コ字形分
布定数線路、２４ａ……ＵＨＦ段間２次結合ルー
プ、２５ａ……ＵＨＦ段間２次同調用コ字形分布
定数線路、２６ａ……ＵＨＦ局部発振結合ループ
、２６ｂ……ＵＨＦ局部発振結合用空芯コイル、
２７ａ……ＵＨＦ局部発振用コ字形分布定数線路
、２７ｂ……ＵＨＦ局部発振用空芯コイル。
Figure 1 shows an example of this invention in which each section of the input tuning section, the interstage primary tuning section, and the interstage secondary tuning section of the UHF is made longer in the longitudinal direction of the base, and each tuning inductance element is FIG. 2 is a plan view of a small and thin tuner using a U-shaped distributed constant line. FIG. 2 is a plan view of a small and thin tuner that uses a U-shaped distributed constant line as a tuning inductance element also in the UHF local oscillation section. FIG. 3 is a plan view of another embodiment of this invention. FIG. 4 is a diagram showing an example of a U-shaped distributed constant line. FIG. 5 is a sectional view in the thickness direction of the tuner showing how the U-shaped distributed constant line is inserted. Figure 6 shows UH
1 is a general circuit block diagram of an F-VHF combination; FIG. FIG. 7 is a plan view of a conventional small and thin tuner using an air-core coil as a UHF tuning inductance element. 1a...UHF input tuning section, 5a...UHF interstage primary tuning section, 5b...UHF interstage secondary tuning section,
6a... VHF interstage primary/secondary tuning section, 7a...
UHF local oscillator, 9a...UHFMiX section, 1
0a...VHFMiX. IFAmp section, 11a...
...IF tuning section, 13... Input terminal, 14... Output terminal, 15a to 15f... Power supply terminal, 18a...
Tuner base, 21a...UHF input coupling loop, 22a...UHF input tuning U-shaped distributed constant line, 23a...UHF inter-stage primary tuning U-shaped distributed constant line, 24a...UHF inter-stage secondary coupling loop, 25a...UHF inter-stage secondary tuning U-shaped distributed constant line, 26a...UHF local oscillation coupling loop, 26b...UHF local oscillation coupling air-core coil,
27a...UHF local oscillation U-shaped distributed constant line, 27b...UHF local oscillation air core coil.
Claims (1)
において、大きさが長辺３〜５０mm、短辺２０〜
２７mm、厚み５〜１３mmのチユーナベースに組み
込まれ、長辺の片側にそつて入出力および電源端
子が配備され、その両端に入力端子と出力端子が
配置されていて、長手方向をシールド仕切板で略
２等分してそのうち入力側半区画に、前記各端子
が並設されている長辺端面からの他の長辺方向に
向かつて順に、ＶＨＦ入力同調部、以下それぞれ
分布定数線路を使用したＵＨＦ入力同調部、ＵＨ
Ｆ段間１次同調部、ＵＨＦ段間２次同調部を配置
し、かつ前記分布定数線路はチユーナベースの長
手方向に略平行になるように配置され、一方、出
力側半区画にはＵＨＦＭｉＸ部、ＵＨＦ局部発振
部、ＶＨＦ段間１次、２次同調部、ＶＨＦＭｉＸ
．ＩＦＡｍｐ部、ＶＨＦ局部発振部が配置されて
いることを特徴とする小型チユーナ装置。 (2) 前記ＵＨＦ局部発振部には同調用インダク
タンス素子として分布定数線路がチユーナベース
短手方向に略平行に配置されたことを特徴とする
請求項１に記載の小型チユーナ装置。 (3) 入力同調回路および段間複同調回路の同調
用インダクタンス素子に分布定数線路を用い、局
部発振回路の同調用インダクタンス素子に空芯コ
イルを用いたことを特徴とするＵＨＦ小型チユー
ナ装置。 (4) ＵＨＦ局部発振回路の同調用インダクタン
ス素子に空芯コイルを用いたことを特徴とする請
求項１に記載の小型チユーナ装置。[Scope of claims for utility model registration] (1) A UHF-VHF combination tuner whose long side is 3 to 50 mm and short side is 20 to 20 mm.
It is built into a tuner base of 27 mm and 5 to 13 mm thick, with input/output and power terminals arranged along one long side, input terminals and output terminals arranged at both ends, and a shield partition plate in the longitudinal direction. Divided into two, in the input side half section, from the long side end face where the above-mentioned terminals are arranged in parallel, in order from the long side end face to the other long side direction, there is a VHF input tuning section, hereinafter a UHF using a distributed constant line, respectively. Input tuning section, UH
An F-stage inter-stage primary tuning section and a UHF inter-stage secondary tuning section are arranged, and the distributed constant line is arranged so as to be approximately parallel to the longitudinal direction of the tuner base, while a UHF MiX section, UHF local oscillation section, VHF interstage primary and secondary tuning section, VHFMiX
．． A small tuner device characterized in that an IFAmp section and a VHF local oscillation section are arranged. (2) The small tuner device according to claim 1, wherein the UHF local oscillator section includes a distributed constant line as a tuning inductance element arranged substantially parallel to the lateral direction of the tuner base. (3) A small UHF tuner device characterized in that a distributed constant line is used as the tuning inductance element of the input tuning circuit and the interstage double tuning circuit, and an air core coil is used as the tuning inductance element of the local oscillation circuit. (4) The small tuner device according to claim 1, wherein an air core coil is used as a tuning inductance element of the UHF local oscillation circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12973790U JPH0444739U (en) | 1990-01-26 | 1990-11-30 |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP651990 | 1990-01-26 | ||
| JP5206890 | 1990-05-17 | ||
| JP12973790U JPH0444739U (en) | 1990-01-26 | 1990-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0444739U true JPH0444739U (en) | 1992-04-16 |
Family
ID=31950352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12973790U Pending JPH0444739U (en) | 1990-01-26 | 1990-11-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0444739U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61113438A (en) * | 1984-10-24 | 1986-05-31 | ザ ベス イスラエル ホスピタル アソシエイション | Method and apparatus for preventing re-closing and re-narrowing in subcateneous coronary artery enlarging technique |
| JPH01213031A (en) * | 1988-02-22 | 1989-08-25 | Hitachi Ltd | Tuner circuit device |
-
1990
- 1990-11-30 JP JP12973790U patent/JPH0444739U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61113438A (en) * | 1984-10-24 | 1986-05-31 | ザ ベス イスラエル ホスピタル アソシエイション | Method and apparatus for preventing re-closing and re-narrowing in subcateneous coronary artery enlarging technique |
| JPH01213031A (en) * | 1988-02-22 | 1989-08-25 | Hitachi Ltd | Tuner circuit device |
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