JPS54127616A - Control system for radio communication antenna - Google Patents

Control system for radio communication antenna

Info

Publication number
JPS54127616A
JPS54127616A JP3517978A JP3517978A JPS54127616A JP S54127616 A JPS54127616 A JP S54127616A JP 3517978 A JP3517978 A JP 3517978A JP 3517978 A JP3517978 A JP 3517978A JP S54127616 A JPS54127616 A JP S54127616A
Authority
JP
Japan
Prior art keywords
unit
antenna
radiation pattern
calling
change
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
Application number
JP3517978A
Other languages
Japanese (ja)
Inventor
Hidehiro Takahashi
Yoshihiko Mikuni
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP3517978A priority Critical patent/JPS54127616A/en
Publication of JPS54127616A publication Critical patent/JPS54127616A/en
Pending legal-status Critical Current

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

Abstract

PURPOSE:To ensure an assured radio communication at the area where the field level falls down suddenly by the space standing wave by securing the sequential change of the radiation pattern of the antenna at the calling side and under transmission of the calling signals. CONSTITUTION:In case the calling signal is transmitted for calling slave unit 2 by master unit 1, wave guide element 3a and 3b of antenna 3 of unit 1 are turned mechanically to vary in sequence the radiation pattern of antenna 3, i.e., the directivity. A change shown in the figure, for example, is given to the field intensity at the position of unit 2 where the space standing wave can be generated via reflector 5 and 6. But the calling signal can be received from unit 1 regardless of the position of unit 2 by the change of the radiation pattern of the transmission antenna. Unit 2 gives the replay which is then detected by unit 1 to stop the change of the radiation pattern of the antenna. Thus, the steady communication is ensured thereafter.
JP3517978A 1978-03-27 1978-03-27 Control system for radio communication antenna Pending JPS54127616A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3517978A JPS54127616A (en) 1978-03-27 1978-03-27 Control system for radio communication antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3517978A JPS54127616A (en) 1978-03-27 1978-03-27 Control system for radio communication antenna

Publications (1)

Publication Number Publication Date
JPS54127616A true JPS54127616A (en) 1979-10-03

Family

ID=12434617

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3517978A Pending JPS54127616A (en) 1978-03-27 1978-03-27 Control system for radio communication antenna

Country Status (1)

Country Link
JP (1) JPS54127616A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005112194A1 (en) * 2004-05-18 2005-11-24 Matsushita Electric Industrial Co., Ltd. Antenna assembly and wireless unit employing it
EP1814195A1 (en) * 2004-10-01 2007-08-01 Matsushita Electric Industrial Co., Ltd. Antenna device and wireless terminal using the antenna device
JP2016165082A (en) * 2015-03-06 2016-09-08 オムロン株式会社 Radio equipment

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005112194A1 (en) * 2004-05-18 2005-11-24 Matsushita Electric Industrial Co., Ltd. Antenna assembly and wireless unit employing it
JP2006005903A (en) * 2004-05-18 2006-01-05 Matsushita Electric Ind Co Ltd Antenna device, and radio using the same
US7760150B2 (en) * 2004-05-18 2010-07-20 Panasonic Corporation Antenna assembly and wireless unit employing it
EP1814195A1 (en) * 2004-10-01 2007-08-01 Matsushita Electric Industrial Co., Ltd. Antenna device and wireless terminal using the antenna device
EP1814195A4 (en) * 2004-10-01 2009-07-15 Panasonic Corp Antenna device and wireless terminal using the antenna device
US7602340B2 (en) 2004-10-01 2009-10-13 Panasonic Corporation Antenna device and wireless terminal using the antenna device
JP2016165082A (en) * 2015-03-06 2016-09-08 オムロン株式会社 Radio equipment
WO2016143591A1 (en) * 2015-03-06 2016-09-15 オムロン株式会社 Wireless device
US10298303B2 (en) 2015-03-06 2019-05-21 Omron Corporation Radio

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