JPS5850830A - Antenna device - Google Patents
Antenna deviceInfo
- Publication number
- JPS5850830A JPS5850830A JP14794681A JP14794681A JPS5850830A JP S5850830 A JPS5850830 A JP S5850830A JP 14794681 A JP14794681 A JP 14794681A JP 14794681 A JP14794681 A JP 14794681A JP S5850830 A JPS5850830 A JP S5850830A
- Authority
- JP
- Japan
- Prior art keywords
- conductor
- antenna
- electric field
- switch
- booster amplifier
- 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
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Support Of Aerials (AREA)
- Structure Of Receivers (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は小型のブースターアンプを備えたＦ Ｍ受信用
のアンテナ装置において、受信信号の強度に応じてブー
スターアンプを介在あるいは非介在に切換える選択回路
をもアンテナ導体と同一の絶縁基板上に形成したアンテ
ナ装置にｍｙる。DETAILED DESCRIPTION OF THE INVENTION The present invention provides an antenna device for FM reception equipped with a small booster amplifier, in which the selection circuit for switching between intervening and non-intervening of the booster amplifier according to the strength of the received signal is also the same as the antenna conductor. The antenna device is formed on an insulating substrate.
近年、ＦＭ放送は急速に普及されつつあり、これに伴な
ってＦＭチューナを含む再生機器も向上し高忠実度再生
化のための改良が垂ねられている。In recent years, FM broadcasting has been rapidly becoming popular, and along with this, playback equipment including FM tuners has improved, and improvements have been made to achieve high-fidelity playback.
しかしこのような高忠大度再ｉを阻む要因の一つとして
アンテナの問題がある。この問題とは一般に高性能のＦ
Ｍアンテナは、人形であるためにイの設置が住宅事情等
によって困難であることに起因している。、つまり、国
内のＦＭ放送の割当周波数帯域が７６〜９０ Ｍ ＨＺ
であり、半波長ダイポールアンテナの全長は約１６６〜
１９７ｃｍ（中心周波数では、１８１．５ｃｍ＞にも及
んでしまう。However, one of the factors that prevents such high fidelity and high degree re-i is the problem with the antenna. This problem is generally addressed by high-performance F
This is due to the fact that since the M antenna is a doll, it is difficult to install it due to housing conditions. In other words, the allocated frequency band for domestic FM broadcasting is 76 to 90 MHz.
The total length of the half-wavelength dipole antenna is approximately 166~
197 cm (at the center frequency, it reaches 181.5 cm).
このようなアンテナはいくら高性能であっても室内には
設置し得す敢えてフィーダアンテナ等の設置により、本
来の性能を犠牲にすることを余儀なくしているのが実情
である。No matter how high-performance such an antenna is, the reality is that it cannot be installed indoors, and the original performance is forced to be sacrificed by installing a feeder antenna or the like.
このため第１図（ａ）及至（Ｃ）に示すように直径が約
士数Ｃ―の円形状印刷配線板（１）の裏面（ａ図）には
その外周部に幅広で一部に開放端を有したループ状のア
ンテナ導体（２）と、このアンテナ導体（２）の開放端
から内側に延設された一対の同調回路接続用の導体（３
）（４）と同じく前記アンテナ導体（２）における開放
端と略々対向する反対側の給電点から内側に延設された
増幅回路の接続用導体（５）と接続用導体（６）を備え
これら接続用導体（５）（６）の近傍で後）ホするブー
スターアンプ部品搭載用の回路パターン（８）とが同時
に一体形成されている。このように形成された印刷配線
板（１）の表面〈ｂ図）には第２図に示すような回路部
品群が搭載される。For this reason, as shown in Figure 1 (a) to (C), the back side (Figure a) of the circular printed wiring board (1) with a diameter of approximately C- is wide at its outer periphery and partially open. A loop-shaped antenna conductor (2) having an end, and a pair of tuning circuit connection conductors (3) extending inward from the open end of the antenna conductor (2).
) As in (4), the antenna conductor (2) includes a connecting conductor (5) and a connecting conductor (6) extending inward from the feed point on the opposite side, which is substantially opposite to the open end of the antenna conductor (2). A circuit pattern (8) for mounting booster amplifier components is simultaneously formed in the vicinity of these connection conductors (5) and (6). A circuit component group as shown in FIG. 2 is mounted on the surface of the printed wiring board (1) thus formed (FIG. b).
この場合、先ず接続用導体（３）（４）部には同調用の
可変コンデンサ（ＶＣ）が接続されるもので、これによ
って上記アンテナ導体（２）に９接同調回路が接続され
る如（したアンテナ本体部（ＡＮＴ＞が構成される。次
にこのようなアンテナ本体部（ＡＮＴ’）に直接的に接
続すべきブースターアンプ（八ＭＰ＞を構成する各部品
が搭載される。前記接続用導体（５）（６）を入力端と
１−るブースターアンプ（ＡＭＰ＞は一方の導体（５）
側がコンデンサ（Ｃ１）を介してトランジスタ（ＴＲＩ
＞のベースに接続され、忙ｈ゛の導体（６）がトラン
ジスタ（ＴＲＩ ＞のエミッタに接続される。前記トラ
ンジスタ（ＴＲ１＞のベース、コレクタ間にはコンデン
サ（Ｃ２）と抵抗（Ｒ１）の“め列回路が介゛挿接続さ
れる。またトランジスタ（ＴＲ１）のベース、エミッタ
間には抵抗（Ｒ２）とコンデンサ（Ｃ３）の直列回路が
介挿接続される。更に前記トランジスタ（Ｔ’Ｒ１）の
コレクタはコンデンサ（Ｃ４）及びインダクタンス（Ｌ
ｌ）（Ｌ２）を介して一方の出力端（９）に接続される
とともにトランス（Ｔ１）を介して前記抵抗（Ｒ２）と
コンデンサ（Ｃ３）との接続点に接続される。一方前記
インダクタンス（［１）と（１−２）の接続点にコンデ
ンサ（Ｃ５）の一方が接続され、このコンデンサ（Ｃ５
〉の他方は前記トランジスタ（ＴＲ１）のエミッタに接
続されるとともに、接地側となる他方の出力端（１０）
に接続されている。また更に前記抵抗（Ｒ２）とコンデ
ンサ（Ｃ３）との接続点には抵抗（Ｒ３）、チコークコ
イル（ＲＦＣ）並びに電源（Ｅ）を介して前記出力′端
（１０）に接続されている。In this case, first, a variable capacitor (VC) for tuning is connected to the connection conductor (3) and (4), so that a nine-way tuning circuit is connected to the antenna conductor (2). The antenna main body (ANT') is constructed.Next, each component constituting the booster amplifier (8MP) to be directly connected to the antenna main body (ANT') is mounted. Booster amplifier (AMP> with conductors (5) and (6) as input terminals is one conductor (5)
side is connected to the transistor (TRI) via the capacitor (C1).
A busy conductor (6) is connected to the emitter of the transistor (TRI>).A capacitor (C2) and a resistor (R1) are connected between the base and collector of the transistor (TRI>). A series circuit of a resistor (R2) and a capacitor (C3) is inserted and connected between the base and emitter of the transistor (TR1).Furthermore, the transistor (T'R1) The collector of is a capacitor (C4) and an inductance (L
l) It is connected to one output end (9) via (L2), and is also connected to the connection point of the resistor (R2) and capacitor (C3) via a transformer (T1). On the other hand, one of the capacitors (C5) is connected to the connection point of the inductances ([1) and (1-2), and this capacitor (C5
> is connected to the emitter of the transistor (TR1), and the other output terminal (10) is connected to the ground side.
It is connected to the. Furthermore, the connection point between the resistor (R2) and the capacitor (C3) is connected to the output terminal (10) via a resistor (R3), a check coil (RFC), and a power source (E).
上記のように構成されたアンテナ装置は第３図に示プよ
うに第２図を等制約に現わしたアンテナ装置（１１）か
らの高感度出力はＦＭチコーナ（１１１）の高周波増幅
器（１０１）を介してミキサー（１０２）に導かれ、こ
こで局部発信器（１０３）からの局発信号の注入により
中間周波数に変換されたのち中間周波増幅器（１０４）
を介して次段の例えばディスクリミネータ等に送出され
るものである。The antenna device configured as described above is shown in FIG. 3, which is a representation of FIG. 2 with equal constraints.The high sensitivity output from the antenna device (11) is the high-frequency amplifier (101) of the FM chicon (111). is guided to a mixer (102) via a local oscillator (103), where it is converted to an intermediate frequency by injecting a local signal from a local oscillator (103), and then an intermediate frequency amplifier (104).
The signal is sent to the next stage, such as a discriminator, through the .
しかしながら第１図及至第Ｑ図に構成されたようなアン
テナ装置ではＦＭｆｉ送局の遠近、換言づれば電界強度
の強弱に拘わらずアンテナ導体に入射された電波は常時
ブースターアンプを介して出力されＦＭチコーナに導入
されることになる。このことは強電界地点での受信の際
、強い電波を更にブースター回路下増幅することになる
ためＦ Ｍチｌ−すに入力される信号はＦＭチューナの
許容入力信号以、［になることよりＦ Ｍチコーナの出
りに歪が発生する。これを防止する為にブースターアン
プを電界強度に応じてブースターアンプを入れたり切っ
たりする回路を設けることが考えられるが、ただ甲にブ
ースターアンプを切換用のスイッチを取付けただけでは
スイッチまでの配線の引５−
き回したよりＳＮの劣化や配線作業を必要としたり、配
線の不均一性によって製品の性能にバラン↑を生じる等
の欠点を有する。However, in the antenna device configured as shown in Figures 1 to Q, the radio waves incident on the antenna conductor are always outputted via the booster amplifier, regardless of the distance from the FMfi transmitting station, or in other words, the strength of the electric field. It will be introduced in This means that when receiving at a strong electric field point, the strong radio waves will be further amplified under the booster circuit, so the signal input to the FM channel will be higher than the allowable input signal of the FM tuner. Distortion occurs at the output of the FM chicona. In order to prevent this, it is possible to install a circuit that turns the booster amplifier on and off depending on the electric field strength, but if you just install a switch to switch the booster amplifier on the instep, the wiring to the switch will be too much. 5- It has drawbacks such as deterioration of SN due to wiring, necessitating wiring work, and unbalanced product performance due to non-uniformity of wiring.
本発明は以上の欠点を除去し、電界強度の状態によって
ブースターアンプを選択的に介在或いは非介在の状態に
切換えるスイッチをアンテナ装置等と同一の印刷配線板
上に形成されたアンテナ装置を提供するものである。The present invention eliminates the above-mentioned drawbacks and provides an antenna device in which a switch for selectively switching the booster amplifier to the intervening or non-intervening state depending on the state of the electric field strength is formed on the same printed wiring board as the antenna device, etc. It is something.
以下第４図及至第５図を参照して本発明の一実施例につ
き説明するが第１図及至第３図と同一部分には同一の番
号を附し、その説明を省略する。Hereinafter, an embodiment of the present invention will be described with reference to FIGS. 4 and 5. The same parts as in FIGS. 1 to 3 are designated by the same numbers, and the explanation thereof will be omitted.
即ち、本発明は第４図に示すようにアンテナ導体（２）
より新たに接続用導体（７）（ａ図）を設けるとともに
印刷配線板（１）の表面（ｂ図）にスイッチ（ＳＷ）を
設けたものであり、このスイッチ（ＳＷ）は第５図に示
されるようにアンテナ導体（２）に接続さ・れた接続用
導体（７）はスイッチ（ＳＷ）の一方のスイッチ（Ｓｌ
）の第１図の固定接点（ＳＡ）に接続され、このスイッ
チ（Ｓｌ）の第２の固定接点（ＳＢ）はトランジス＝６
−
タ（’ＴＲ１）の］レレフより直列の二′Ｊンデンサ（
Ｃ４）、インダクタンス（Ｌｌ）を介してこれらに直列
に接続された。インダクタンス（［２）に接続される。That is, the present invention provides an antenna conductor (2) as shown in FIG.
In addition to providing a new connection conductor (7) (Figure a), a switch (SW) is provided on the surface of the printed wiring board (1) (Figure b), and this switch (SW) is shown in Figure 5. As shown, the connecting conductor (7) connected to the antenna conductor (2) is connected to one switch (Sl) of the switch (SW).
) is connected to the fixed contact (SA) in Fig. 1 of the switch (Sl), and the second fixed contact (SB) of this switch (Sl) is transistor = 6
- 2'Jndensas ('TR1)] in series from
C4) and were connected in series to these via an inductance (Ll). Connected to inductance ([2).
またこのスイッチ（８１，、）の可動接点（ＳＯ）は一
方の出力端（９）に接続される。Further, the movable contact (SO) of this switch (81, .) is connected to one output end (9).
また前記スイッチ（ＳＷ＞の他方のスイッチ（Ｓ２）の
第１固定接点（ＳＡ）は開放端とされ、第２の固定接点
（Ｓ ［３）はトランジスタ（ＴＲＬ）のベースより直
列の抵抗（Ｒ２）、抵抗（３）を介してこれらに更に直
列接続されたチコークコイル（ＲＦＣ）に接続されてい
る。Further, the first fixed contact (SA) of the other switch (S2) of the switch (SW>) is an open end, and the second fixed contact (S [3) is connected to the resistor (R2) connected in series from the base of the transistor (TRL). ), and are further connected in series to these through a resistor (3) to a chicory coil (RFC).
またスイッチ（＄２）の可動接点（Ｓｃ ）は電源（Ｅ
）を介して出力端（１０）に接続されている。なお前記
スイッチ＜ＳＷ＞のスイッチ（Ｓｌ）（Ｓ２）は連動し
、ス、イツチ（Ｓｌ）の可動接点（Ｓｃ ）が第１の固
定接点（ＳＡ）のときはスイッチ（Ｓ２）の可動接点（
８０）も第１の固定接点（ＳＡ）にあり、この関係で各
可動接点（ＳＯ）は第１及び第２の固定接点（ＳＡ＞（
Ｓ［３＞の何れかに接続される。In addition, the movable contact (Sc) of the switch ($2) is connected to the power source (E
) to the output end (10). The switches (Sl) and (S2) of the switch <SW> are interlocked, and when the movable contact (Sc) of the switch (Sl) is the first fixed contact (SA), the movable contact (S2) of the switch (S2)
80) is also located at the first fixed contact (SA), and in this relationship each movable contact (SO) is located at the first and second fixed contact (SA>(
Connected to either S[3>.
更に第６図の（１２）は第５図を等制約に示したアンテ
ナ装置であり、このアンテナ装置（１２）から１Ｍチュ
ーナ（１１１）のフロントエンド部に接続された状態を
示したものである。Furthermore, (12) in FIG. 6 is an antenna device shown in FIG. 5 with equal constraints, and this antenna device (12) is shown connected to the front end section of a 1M tuner (111). .
以上のように構成されたアンテナ装置によると、今、弱
電界（通常の放送局より離れた状態）にあると仮定して
スイッチ（８１） （８２）が第１の固定接点（ＳＡ
）側に接続されているとすると、アンテナ導体（２）か
らの出力信号は接続用導体（６）及び（７）を介して出
力端（９）（１０）に導出される。このとき、アンテナ
導体（２）に受信される信号が弱電界であるために出力
端（９）（１０）に導出される受信＠号は極めて小さな
ものである。この状態でＦＭチコーナ（１１１）が受け
ると極めてＳＮの悪いものとなる。そこでスイッチ（８
１） （８２＞の可動接点（Ｓｃ ）を第２の固定接
点＜ＳＲ）側に切換えるとアンテナ導体（２）が受けた
受信信号は接続用導体（５）及び（６）に導かれ、ブー
スターアンプ＜ＡＭＰ＞を介して出力端子、（９）（１
０）に増幅された強い受信信゛号として導出され、この
他シＪをＦ Ｍチューナ（１１１）に印加してやるとＳ
Ｎが改善される。According to the antenna device configured as described above, the switches (81) and (82) are connected to the first fixed contacts (SA
) side, the output signal from the antenna conductor (2) is led out to the output ends (9) and (10) via the connecting conductors (6) and (7). At this time, since the signal received by the antenna conductor (2) has a weak electric field, the received @ signal derived to the output terminals (9) and (10) is extremely small. If the FM chicon (111) receives the signal in this state, the signal to noise signal will be extremely poor. Then switch (8
1) When the movable contact (Sc) of (82>) is switched to the second fixed contact <SR), the received signal received by the antenna conductor (2) is guided to the connection conductors (5) and (6), and the booster Output terminal, (9) (1) via amplifier <AMP>
0), and when J is applied to the FM tuner (111), S
N is improved.
次に強電界（放送局に極めて近い状態かそれと同条件）
にあるとしてスイッチ（８１） （８２）が夫々第２
の固定接点（ＳＢ）に接続されて（Ｘるとすると、受信
信号を受けたアンテナ導体（２）から接続用導体（５）
及び（６）よりブースターアンプ（ＡＭＰ＞を介して出
力端＜９）（１０）に導出され、強い受信信号がブース
ターアンプ（ＡＭＰ）で更に強くされることになる。従
って１Ｍチューナ（１１１）でこれを受けると、ｚ１容
入力信号のレベル以上となって１Ｍチューナ（１１１）
のフロントエンド部から歪のある出力１８号が出力され
ることになる。Next, a strong electric field (very close to the broadcasting station or under similar conditions)
Assuming that the switches (81) and (82) are in the second
(X) is connected to the fixed contact (SB) of
From (6), the signal is led out to the output end <9) (10) via the booster amplifier (AMP>), and the strong received signal is further strengthened by the booster amplifier (AMP). Therefore, when the 1M tuner (111) receives this signal, it becomes higher than the level of the z1 input signal and the 1M tuner (111)
A distorted output No. 18 will be output from the front end section of.
このためスイッチ（ＳＷ）の各スイッチ（Ｓｌ）（Ｓ２
）の可動接点（Ｓｃ ）を固定接点（ＳＡ）側（図示の
状態）に投入してやれ各ｆ、アンテナ導体（２）で受け
た受信信号は接続用導体（７）（６）を介して出力端（
９）（１０）にｍｌ ｉＢされ一〇−
る。このとき受信、信号はブースターアンプ（ＡＭＰ）
を介さずアンテナ導体（２）より直接受信した信号をそ
のまま出力端に導くことができる。そしてこの信号は１
Ｍチューナ（１１１）の許容入力信号内であるため、こ
の信号を受信したＦＭチコーナ（１１１）は歪のない信
号を再生できる。Therefore, each switch (Sl) (S2
) of the movable contact (Sc) to the fixed contact (SA) side (as shown).The received signal received by the antenna conductor (2) is sent to the output terminal via the connecting conductor (7) and (6). (
9) ml iB is added to (10). At this time, the received signal is a booster amplifier (AMP)
The signal directly received from the antenna conductor (2) without going through it can be guided to the output end as it is. And this signal is 1
Since this is within the allowable input signal of the M tuner (111), the FM tuner (111) that receives this signal can reproduce a signal without distortion.
従って弱電界の場所にアンテナ装置が設置されていると
きには各スイッチ（８１） （８２）の可動接点（Ｓ
ｃ）を第２の固定接点（ＳＢ）側に切換えてブースター
アンプを通して出力端（９）（１０）に導き出し、強電
界の場所にアンテナ装置が設置されているときには各ス
イッチ（Ｓｌ）（Ｓ２）の可動接点（Ｓｏ ）を第１の
固定接点（ＳＡ）側に切換えて、アンテナ導体（２）で
受けた受信信号を直接出力端（９）（１０）に導きＦＭ
チ１−す（１１１）の許容入力信号の範囲内で再生さ゛
れる。つまり弱電界のときには第２の固定接点（ＳＢ）
側に可動接点（ＳＧ、）を切換え、強電界のときには第
１の固定接点（ＳＡ）側に可動接点（ＳＣ）を切換え接
続すれば所望の電界強１０−
疫にあった受信信号をＦＭチューナ（１１１）に導入で
きる。Therefore, when the antenna device is installed in a place with a weak electric field, the movable contact (S) of each switch (81) (82)
c) to the second fixed contact (SB) side and lead it to the output terminals (9) and (10) through the booster amplifier, and when the antenna device is installed in a place with a strong electric field, each switch (Sl) (S2) The movable contact (So) is switched to the first fixed contact (SA) side, and the received signal received by the antenna conductor (2) is directly guided to the output terminals (9) and (10).
The signal is reproduced within the allowable input signal range of the channel 1-1 (111). In other words, when the electric field is weak, the second fixed contact (SB)
By switching the movable contact (SG, ) to the first fixed contact (SA) and connecting the movable contact (SC) to the first fixed contact (SA) when the electric field is strong, the desired electric field strength can be set to 10. (111) can be introduced.
以上記載したように本発明のアンテナ装置は同−印刷配
噛板にアンテナ導体、このアンテナ導体で受けた所望の
信号に同ｍ′する同調回路並びに受信信号を増幅するブ
ースターアンプを設け、しかもブースターアンプは電界
の強弱に対応して任意にブースターアンプを介したり、
アンテナ導体からブースターアンプを介さず直接出力端
に！出する切換スイッチをも同一印刷配線板上に形成し
ていることより、アンテナ導体、同調回路、ブースター
アンプ、切換スイッチ間を接続するコードを引き回１こ
とがないためアンチを装置そのものの性能の均一化がは
かれるとともに切換スイッチも印刷配線板上に設置した
ことよりスイ・ソチとの接続点を最短に設定できること
よりスイッチを取付は接続線を必要とづることのアンテ
ナ′Ａｆｆとして。、□−０、。 □
またアンテシ導体、同調回路、ブースターアンプ並びに
切換スーイツチが同一の印刷配線板で形成されることは
これらの各部品を所定の位置に挿入後自動半田装置によ
って同時に接続可能である等の効果をも奏する。As described above, the antenna device of the present invention includes an antenna conductor, a tuning circuit that tunes the desired signal received by the antenna conductor, and a booster amplifier that amplifies the received signal on the same printed distribution board. The amplifier can be arbitrarily connected to a booster amplifier depending on the strength of the electric field, or
Directly from the antenna conductor to the output end without going through a booster amplifier! Since the changeover switch for output is also formed on the same printed wiring board, there is no need to run cables to connect the antenna conductor, tuning circuit, booster amplifier, and changeover switch. In addition to achieving uniformity, the changeover switch was also installed on the printed wiring board, so the connection point with Sui-Sochi could be set as short as possible, and the switch could be installed as an antenna 'Aff' without requiring a connecting wire. ,□−0,. □ Also, the fact that the antenna conductor, tuning circuit, booster amplifier, and switching switch are formed on the same printed wiring board has the advantage that these parts can be connected at the same time using an automatic soldering device after being inserted into the predetermined positions. play.
更に同一の印刷配線板上のスイッチの切換えによりブー
スターアンプを介して導出したり或いは介さずにそのま
ま導出することによって電界強疫にあった状態で受信信
号をＦＭチ】−すに供給できる。Furthermore, by changing the switch on the same printed wiring board, the received signal can be supplied to the FM channel in a strong electric field by directing it through a booster amplifier or directly without going through it.
第１図（ａ ）〜（Ｃ’ｔは本発明を説明づ−るための
印刷配線板の裏面図１表面図、側面図、第２図は第１図
で示された印刷配線板に形成される回路図、第３図は第
２図の回路図とＦＭチューナ部とを接続した接続図、第
４図（ａ ＞〜（Ｑ ）は本発明アンテナ装置の一実施
例を示す印刷配線板の裏面図８表面図、側面図、第５図
は第４図に示された印刷配線板上に形成される回路図、
第６図は第５図に示された回路とＦＭチューナとが接続
された状態を示す接続図である。
（１）・・・印刷配線板 （２）アンテナ導体（５）、
（６）、（７）・・・接続用導体（８）・・・ブースタ
ーアンプ
＜ＳＷ＞・・・スイッチ
代理人 弁理士 則 近 憲 佑 （ほか１名１３−
）Ａ １ 巴Figures 1 (a) to (C't are back views of the printed wiring board for explaining the present invention; 3 is a connection diagram connecting the circuit diagram of FIG. 2 and the FM tuner section, and FIG. 4 (a> to (Q)) is a printed wiring board showing an embodiment of the antenna device of the present invention. Figure 5 is a circuit diagram formed on the printed wiring board shown in Figure 4;
FIG. 6 is a connection diagram showing a state in which the circuit shown in FIG. 5 and an FM tuner are connected. (1)...Printed wiring board (2) Antenna conductor (5),
(6), (7)... Connecting conductor (8)... Booster amplifier <SW>... Switch agent Patent attorney Noriyuki Chika (and 1 other person 13-) A 1 Tomoe
Claims (1)
ーアンプ、並びに受１８周波数に同調させる同調回路と
が同一の印刷配線板Ｆに形成されるとどしに、さらｋこ
の印刷配線板には受信状態によって前記ブースターアン
プを介在するか否かの選択回路をも形成したことを特徴
とするアンテナ装置。At least the antenna conductor, the booster amplifier for amplifying the received signal, and the tuning circuit for tuning to the receiving 18 frequency are formed on the same printed wiring board F. An antenna device characterized in that it also includes a selection circuit for selecting whether or not to include a booster amplifier.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14794681A JPS5850830A (en) | 1981-09-21 | 1981-09-21 | Antenna device |
| GB8215594A GB2100063B (en) | 1981-06-05 | 1982-05-27 | Antenna |
| DE19823220989 DE3220989A1 (en) | 1981-06-05 | 1982-06-03 | AERIAL DEVICE WITH A BASE PLATE AND A FRAME-SHAPED ANTENNA ELEMENT |
| US06/846,195 US4647937A (en) | 1981-06-05 | 1986-03-31 | Antenna apparatus with tuned loop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14794681A JPS5850830A (en) | 1981-09-21 | 1981-09-21 | Antenna device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5850830A true JPS5850830A (en) | 1983-03-25 |
| JPH0221181B2 JPH0221181B2 (en) | 1990-05-14 |
Family
ID=15441635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14794681A Granted JPS5850830A (en) | 1981-06-05 | 1981-09-21 | Antenna device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5850830A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62502327A (en) * | 1985-03-06 | 1987-09-10 | ピルグリム エンジニアリング デイヴエロプメンツ リミテツド | Improvement of multi-stud tensioner |
| JPS62178076U (en) * | 1986-05-02 | 1987-11-12 | ||
| JPH02190016A (en) * | 1989-01-19 | 1990-07-26 | Pioneer Electron Corp | Antenna booster circuit |
| WO2007049193A1 (en) * | 2005-10-26 | 2007-05-03 | Nxp B.V. | Uhf/vhf planar antenna device, notably for portable electronic equipment |
| JP2008283652A (en) * | 2007-05-09 | 2008-11-20 | Shintaro Gomi | Active coil antenna, and broadcast receiver employing the same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53102615A (en) * | 1977-02-18 | 1978-09-07 | Omron Tateisi Electronics Co | Transmitter-receiver |
| JPS54121711U (en) * | 1978-02-14 | 1979-08-25 |
-
1981
- 1981-09-21 JP JP14794681A patent/JPS5850830A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53102615A (en) * | 1977-02-18 | 1978-09-07 | Omron Tateisi Electronics Co | Transmitter-receiver |
| JPS54121711U (en) * | 1978-02-14 | 1979-08-25 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62502327A (en) * | 1985-03-06 | 1987-09-10 | ピルグリム エンジニアリング デイヴエロプメンツ リミテツド | Improvement of multi-stud tensioner |
| JPS62178076U (en) * | 1986-05-02 | 1987-11-12 | ||
| JPH02190016A (en) * | 1989-01-19 | 1990-07-26 | Pioneer Electron Corp | Antenna booster circuit |
| WO2007049193A1 (en) * | 2005-10-26 | 2007-05-03 | Nxp B.V. | Uhf/vhf planar antenna device, notably for portable electronic equipment |
| US7969373B2 (en) | 2005-10-26 | 2011-06-28 | Nxp B.V. | UHF/VHF planar antenna device, notably for portable electronic equipment |
| JP2008283652A (en) * | 2007-05-09 | 2008-11-20 | Shintaro Gomi | Active coil antenna, and broadcast receiver employing the same |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0221181B2 (en) | 1990-05-14 |
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