JPS6232843B2 - - Google Patents
Info
- Publication number
- JPS6232843B2 JPS6232843B2 JP54134526A JP13452679A JPS6232843B2 JP S6232843 B2 JPS6232843 B2 JP S6232843B2 JP 54134526 A JP54134526 A JP 54134526A JP 13452679 A JP13452679 A JP 13452679A JP S6232843 B2 JPS6232843 B2 JP S6232843B2
- Authority
- JP
- Japan
- Prior art keywords
- tuning
- power receiving
- directivity
- receiving
- antenna
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B7/00—Radio transmission systems, i.e. using radiation field
- H04B7/02—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
- H04B7/04—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas
- H04B7/08—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station
- H04B7/0868—Hybrid systems, i.e. switching and combining
- H04B7/0871—Hybrid systems, i.e. switching and combining using different reception schemes, at least one of them being a diversity reception scheme
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
Description
【発明の詳細な説明】
本発明は受信アンテナの指向性切換装置に関す
るものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a receiving antenna directivity switching device.
従来、アンテナ受信システムにおいて、マルチ
パス・ノイズ対策のため、指向性の異なる複数の
アンテナ受電部を有して、マルチパス・ノイズ検
出と同時に、これらのアンテナ受電部を切り換え
て受信アンテナの指向性を切り換えているものが
ある。そして、上記アンテナを切り換える手段と
しては、リレーやスイツチング・ダイオードなど
のスイツチング素子が使用されていた。ところ
が、上記リレーやスイツチング・ダイオードは本
来信号系にとつて不必要なため、回路設計上及び
製造上の観点から好ましいことではなかつた。 Conventionally, in antenna reception systems, in order to counter multipath noise, multiple antenna power receiving sections with different directivity are provided, and at the same time as multipath noise detection, these antenna power receiving sections are switched to adjust the directivity of the receiving antenna. There are some that switch. Switching elements such as relays and switching diodes have been used as means for switching the antennas. However, since the relays and switching diodes mentioned above are essentially unnecessary for the signal system, this is not desirable from the viewpoint of circuit design and manufacturing.
そこで、本発明では、従来のアクテイブ・アン
テナの同調回路に印加されている同調用制御信号
を制御して、受電部を受信信号に関してオン・オ
フする方式とすれば、特に他のスイツチング素子
が必要とされなくなることに着目し、アクテイブ
化した複数の受電部で互いに指向性の異なるもの
を有する受信システムにおいて、上記複数の受電
部に連続して設けられた複数の同調回路及び複数
の整合・変換回路を経由した受信入力の全てを取
りまとめる単一の加算器を設け、上記複数の同調
回路に対し、受信機本体から印加される同調用制
御信号を制御して、使用している受電部以外の受
電部を受信周波数に関してオフするようにして、
受信アンテナの指向性を切り換えることとした受
信アンテナの指向性切換装置を提供するものであ
る。 Therefore, in the present invention, if the tuning control signal applied to the tuning circuit of the conventional active antenna is controlled to turn the power receiving part on and off in relation to the received signal, no other switching element is particularly required. In a receiving system having a plurality of activated power receiving sections with mutually different directivity, we have developed a system that includes multiple tuning circuits and multiple matching/conversions that are successively provided in the plurality of power receiving sections. A single adder is provided that collects all of the received inputs that have passed through the circuit, and controls the tuning control signal applied from the receiver body to the multiple tuning circuits mentioned above. By turning off the power receiving part with respect to the receiving frequency,
The present invention provides a receiving antenna directivity switching device that switches the directivity of a receiving antenna.
以下付図について本発明を説明する。第１図
は、本発明の一実施例を説明するブロツク図で、
A1……ＡNはループ・アンテナで構成されたＮ個
の受電部で、D1……ＤNは可変容量ダイオードで
構成されたＮ個の同調回路、T1……ＴNは整合・
変換器、Ｓは加算器、V1……ＶNは受信機本体
（図示せず）からの制御用同調電圧の供給端子で
ある。 The invention will now be explained with reference to the accompanying drawings. FIG. 1 is a block diagram illustrating one embodiment of the present invention.
A 1 ...A N are N power receivers composed of loop antennas, D 1 ...D N are N tuning circuits composed of variable capacitance diodes, and T 1 ...T N are matching circuits.
In the converter, S is an adder, and V 1 . . . V N are supply terminals for control tuning voltage from the receiver body (not shown).
次に上記構成の本実施例について機能を説明す
る。いま、受電部A1により受信中であるとする
と、同調回路D1には、受信周波数に対応した制
御用同調電圧が供給されており、他の同調回路
D2……ＤNには、受信周波数に対応しない同調電
圧が供給されている。従つて、加算器Ｓを経由し
受信機本体に取り込まれる受信入力は受電部A1
からのものがメインとなる。ここで、受電部A1
の受信入力中にマルチパス・ノイズが混入する
と、別に設けたマルチパス検出システムの指示に
より、同調回路D1の同調電圧が受信周波数に対
応しないよう自動的に切り換わり、他の同調回路
D2……ＤNのうちのいずれかが受信周波数に対応
した同調電圧を自動的に供給されることとなる。
その結果前述したように受電部A1……ＡNはその
指向性が互いに異なるよう配置されているので、
受信アンテナの指向性が切り換わることとなる。
以上のような切り換えを順次くり返すと、受信ア
ンテナの指向性が順次切り換えられ、マルチパ
ス・ノイズを除去することができることとなる。 Next, the functions of this embodiment having the above configuration will be explained. Assuming that the power receiving unit A 1 is currently receiving power, the tuning circuit D 1 is supplied with a control tuning voltage corresponding to the receiving frequency, and other tuning circuits
A tuning voltage that does not correspond to the reception frequency is supplied to D 2 ...D N. Therefore, the reception input that is taken into the receiver main body via the adder S is the power receiving part A 1
The main ones are from. Here, power receiving part A 1
If multipath noise enters the receiving input of the D1, the tuning voltage of tuning circuit D1 is automatically switched so that it does not correspond to the receiving frequency, and the other tuning circuits are
Any one of D 2 . . . D N is automatically supplied with a tuning voltage corresponding to the reception frequency.
As a result, as mentioned above, the power receiving parts A 1 ...A N are arranged so that their directivity is different from each other.
The directivity of the receiving antenna will be switched.
By repeating the above switching sequentially, the directivity of the receiving antenna is sequentially switched, and multipath noise can be removed.
なお、整合・変換器T1……ＴNは、上記のよう
な機能によつて生じる、上記同調電圧相互のずれ
によつて受信状態に影響を与えないように構成す
る。 The matching converters T 1 .
本発明は、上記のように、複数の互いに指向性
の異なる受電部を有する受信アンテナにおいて、
それぞれの受電部に続く同調回路の同調電圧を制
御して、上記受電部を切り換え、上記受信アンテ
ナの指向性を切り換えるようにしたので、あえ
て、他のリレー、スイツチングダイオード等の素
子を必要とすることがなくなり、回路構成が簡略
化し、回路設計上並びに製造上好適である。した
がつて特に車載用マルチパス対策アンテナに適す
る。 As described above, the present invention provides a receiving antenna having a plurality of power receiving sections having mutually different directivity.
By controlling the tuning voltage of the tuning circuit following each power receiving section, the power receiving sections are switched, and the directivity of the receiving antenna is switched, so we purposely eliminate the need for other elements such as relays and switching diodes. This simplifies the circuit configuration and is suitable for circuit design and manufacturing. Therefore, it is particularly suitable for use as a vehicle-mounted multipath countermeasure antenna.
第１図は、本発明の一実施例を説明するブロツ
ク図である。
A1………ＡN……受電部、D1………ＤN……同
調回路、T1………ＴN……整合・変換器、Ｓ……
加算器、V1………ＶN……電圧供給端子。
FIG. 1 is a block diagram illustrating one embodiment of the present invention. A 1 ...... A N ... Power receiving unit, D 1 ...... D N ... Tuning circuit, T 1 ...... T N ... Matching/converter, S...
Adder, V 1 ...... V N ... Voltage supply terminal.
Claims (1)
の受電部を有する受信アンテナの指向性切換装置
において、上記複数の受電部ごとに設けられた複
数の同調回路及び複数の整合・変換回路を経由し
た受信入力の全てを取りまとめる単一の加算器を
設け、上記複数の同調回路に対し受信機本体から
印加される同調用制御信号を受信機からの指示に
より、自動的に制御することにより、上記複数の
受電部のいずれかの受信信号を前記加算器に加え
て、前記受信アンテナの指向性を切り換えること
を特徴とする受信アンテナの指向性切換装置。1. In a directivity switching device for a receiving antenna having a plurality of activated power receiving sections with different directivities, reception input via a plurality of tuning circuits and a plurality of matching/conversion circuits provided for each of the plurality of power receiving sections. By providing a single adder that coordinates all of the above-mentioned power receiving circuits, and automatically controlling the tuning control signal applied from the receiver body to the above-mentioned plurality of tuning circuits according to instructions from the receiver, the above-mentioned plurality of power reception A directivity switching device for a receiving antenna, characterized in that the directivity of the receiving antenna is switched by adding a received signal from one of the sections to the adder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13452679A JPS5657307A (en) | 1979-10-17 | 1979-10-17 | Directivity switching system for reception antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13452679A JPS5657307A (en) | 1979-10-17 | 1979-10-17 | Directivity switching system for reception antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5657307A JPS5657307A (en) | 1981-05-19 |
| JPS6232843B2 true JPS6232843B2 (en) | 1987-07-17 |
Family
ID=15130376
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13452679A Granted JPS5657307A (en) | 1979-10-17 | 1979-10-17 | Directivity switching system for reception antenna |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5657307A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006020207A (en) * | 2004-07-05 | 2006-01-19 | Nec Infrontia Corp | Antenna assembly |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6031292Y2 (en) * | 1978-12-06 | 1985-09-19 | マスプロ電工株式会社 | TV signal receiving device |
-
1979
- 1979-10-17 JP JP13452679A patent/JPS5657307A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5657307A (en) | 1981-05-19 |
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