JPH033824U - - Google Patents
Info
- Publication number
- JPH033824U JPH033824U JP6437689U JP6437689U JPH033824U JP H033824 U JPH033824 U JP H033824U JP 6437689 U JP6437689 U JP 6437689U JP 6437689 U JP6437689 U JP 6437689U JP H033824 U JPH033824 U JP H033824U
- Authority
- JP
- Japan
- Prior art keywords
- inner conductor
- coiled inner
- conductor
- whip antenna
- vehicle
- 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
- 239000004020 conductor Substances 0.000 claims description 11
- 238000010586 diagram Methods 0.000 description 3
- 230000010363 phase shift Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Landscapes
- Details Of Aerials (AREA)
Description
第１図は本考案の一実施例のホイツプアンテナ
４１の断面図、第２図は自動車電話送受信時の原
理を説明するための図、第３図はラジオ放送受信
時の原理を説明するための図、第４図は従来技術
のホイツプアンテナ１１の断面図、第５図は自動
車電話送受信時のホイツプアンテナ１１の等価回
路図である。
４１…ホイツプアンテナ、４２…アンテナエレ
メント、４３…車体、４４…収納筒、４５…伸縮
駆動機構、５１，５３，５４，５６，５７…導体
、５２…移相コイル、５５…帯域分離用コイル、
６１，７８…内導体、６２，７９…外導体、６３
…筒体、６４…第１導体、６５…第２導体、７６
…接続孔、７７，８２，８３…同軸ケーブル、８
１…分波器、８４…索条。
FIG. 1 is a cross-sectional view of a whip antenna 41 according to an embodiment of the present invention, FIG. 2 is a diagram for explaining the principle of transmitting and receiving car phone calls, and FIG. 3 is a diagram for explaining the principle of receiving radio broadcasts. , FIG. 4 is a sectional view of the whip antenna 11 of the prior art, and FIG. 5 is an equivalent circuit diagram of the whip antenna 11 when transmitting and receiving a car telephone. 41... Whip antenna, 42... Antenna element, 43... Vehicle body, 44... Storage tube, 45... Telescopic drive mechanism, 51, 53, 54, 56, 57... Conductor, 52... Phase shift coil, 55... Band separation coil,
61, 78... Inner conductor, 62, 79... Outer conductor, 63
...Cylinder, 64...First conductor, 65...Second conductor, 76
... Connection hole, 77, 82, 83 ... Coaxial cable, 8
1... Duplexer, 84... Cable.
Claims (1)
の基端部が自動車の車体に固定される車載用ホイ
ツプアンテナにおいて、 車体に筒状外導体を固定し、この外導体内にコ
イル状内導体を配置し、該コイル状内導体の端部
を前記アンテナ基端部に接続し、該コイル状内導
体の展開長を、使用される高い周波数の信号の波
長をλとするとき、λ／２に選ぶことを特徴とす
る車載用ホイツプアンテナ。[Claim for Utility Model Registration] In an on-vehicle whip antenna that is commonly used across multiple frequency bands and whose base end is fixed to the vehicle body, a cylindrical outer conductor is fixed to the vehicle body, and this outer conductor A coiled inner conductor is placed inside the coiled inner conductor, the end of the coiled inner conductor is connected to the base end of the antenna, and the developed length of the coiled inner conductor is set to λ, the wavelength of the high frequency signal used. An in-vehicle whip antenna characterized by selecting λ/2 when
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989064376U JPH0749846Y2 (en) | 1989-05-31 | 1989-05-31 | Automotive whip antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989064376U JPH0749846Y2 (en) | 1989-05-31 | 1989-05-31 | Automotive whip antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH033824U true JPH033824U (en) | 1991-01-16 |
| JPH0749846Y2 JPH0749846Y2 (en) | 1995-11-13 |
Family
ID=31595266
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989064376U Expired - Lifetime JPH0749846Y2 (en) | 1989-05-31 | 1989-05-31 | Automotive whip antenna |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0749846Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011514075A (en) * | 2008-03-04 | 2011-04-28 | カーディアック ペースメイカーズ， インコーポレイテッド | Radio frequency loaded antenna for implantable devices |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6342506A (en) * | 1986-08-09 | 1988-02-23 | Fujitsu Ten Ltd | Antenna system for automobile |
| JPS63119304A (en) * | 1986-11-06 | 1988-05-24 | Fujitsu Ten Ltd | Antenna system for automobile |
-
1989
- 1989-05-31 JP JP1989064376U patent/JPH0749846Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6342506A (en) * | 1986-08-09 | 1988-02-23 | Fujitsu Ten Ltd | Antenna system for automobile |
| JPS63119304A (en) * | 1986-11-06 | 1988-05-24 | Fujitsu Ten Ltd | Antenna system for automobile |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011514075A (en) * | 2008-03-04 | 2011-04-28 | カーディアック ペースメイカーズ， インコーポレイテッド | Radio frequency loaded antenna for implantable devices |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0749846Y2 (en) | 1995-11-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |