JPS6460101A - Electronic scanning antenna - Google Patents

Electronic scanning antenna

Info

Publication number
JPS6460101A
JPS6460101A JP21737087A JP21737087A JPS6460101A JP S6460101 A JPS6460101 A JP S6460101A JP 21737087 A JP21737087 A JP 21737087A JP 21737087 A JP21737087 A JP 21737087A JP S6460101 A JPS6460101 A JP S6460101A
Authority
JP
Japan
Prior art keywords
beams
antenna element
antenna
plural
numbers
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
Application number
JP21737087A
Other languages
Japanese (ja)
Other versions
JPH0630407B2 (en
Inventor
Eiji Isobe
Hiroshi Yokoyama
Tsugio Yamazaki
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP62217370A priority Critical patent/JPH0630407B2/en
Publication of JPS6460101A publication Critical patent/JPS6460101A/en
Publication of JPH0630407B2 publication Critical patent/JPH0630407B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

PURPOSE:To efficiently utilize an antenna aperture and to improve a data rate by simultaneously forming the plural numbers of beams and directionally forming them in the arbitrary direction of all directions. CONSTITUTION:A beam 10 is formed respectively to the three numbers of antenna element groups to divide the plural numbers of antenna elements 1-1-1-N into three. Since a control means 7 suitably controls three switch matrixes 4-1-4-3, plural switches 3-1-3-N and plural phase shifters 2-1-2-N respectively one beam can be formed by a first antenna element group. Two beams can be formed by the first and second antenna element group and three beams can be formed by the first, second and third antenna element groups. These beams can be directionally formed in the arbitrary direction of all directions. Thus, the antenna aperture can be efficiently utilized and the data rate can be improved.
JP62217370A 1987-08-31 1987-08-31 Electronic scanning antenna Expired - Lifetime JPH0630407B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62217370A JPH0630407B2 (en) 1987-08-31 1987-08-31 Electronic scanning antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62217370A JPH0630407B2 (en) 1987-08-31 1987-08-31 Electronic scanning antenna

Publications (2)

Publication Number Publication Date
JPS6460101A true JPS6460101A (en) 1989-03-07
JPH0630407B2 JPH0630407B2 (en) 1994-04-20

Family

ID=16703109

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62217370A Expired - Lifetime JPH0630407B2 (en) 1987-08-31 1987-08-31 Electronic scanning antenna

Country Status (1)

Country Link
JP (1) JPH0630407B2 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01162003A (en) * 1987-12-18 1989-06-26 Nec Corp Electronic scanning antenna
JPH03207104A (en) * 1989-09-26 1991-09-10 Agence Spatiale Europ Multiple beam antenna feeding device
US5178105A (en) * 1990-08-23 1993-01-12 Ricardo Consulting Engineers Limited Valve gear for internal combustion engines
DE19639642A1 (en) * 1995-09-29 1997-04-03 Motorola Inc Antenna device for a wireless communication device
WO2000026988A1 (en) * 1998-10-30 2000-05-11 Sanyo Electric Co., Ltd. Adaptive array device

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58172036A (en) * 1982-04-02 1983-10-08 Nippon Telegr & Teleph Corp <Ntt> Directivity controlling system for multibeam communication
JPS62169505A (en) * 1986-01-22 1987-07-25 Toshiba Corp Circular array antenna system

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58172036A (en) * 1982-04-02 1983-10-08 Nippon Telegr & Teleph Corp <Ntt> Directivity controlling system for multibeam communication
JPS62169505A (en) * 1986-01-22 1987-07-25 Toshiba Corp Circular array antenna system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01162003A (en) * 1987-12-18 1989-06-26 Nec Corp Electronic scanning antenna
JPH03207104A (en) * 1989-09-26 1991-09-10 Agence Spatiale Europ Multiple beam antenna feeding device
US5178105A (en) * 1990-08-23 1993-01-12 Ricardo Consulting Engineers Limited Valve gear for internal combustion engines
DE19639642A1 (en) * 1995-09-29 1997-04-03 Motorola Inc Antenna device for a wireless communication device
US5812093A (en) * 1995-09-29 1998-09-22 Motorola, Inc. Antenna assembly for a wireless-communication device
WO2000026988A1 (en) * 1998-10-30 2000-05-11 Sanyo Electric Co., Ltd. Adaptive array device
US6496142B1 (en) 1998-10-30 2002-12-17 Sanyo Electric Co., Ltd Adaptive array device

Also Published As

Publication number Publication date
JPH0630407B2 (en) 1994-04-20

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