JPS54136114A - Antenna device for diversity - Google Patents

Antenna device for diversity

Info

Publication number
JPS54136114A
JPS54136114A JP4321378A JP4321378A JPS54136114A JP S54136114 A JPS54136114 A JP S54136114A JP 4321378 A JP4321378 A JP 4321378A JP 4321378 A JP4321378 A JP 4321378A JP S54136114 A JPS54136114 A JP S54136114A
Authority
JP
Japan
Prior art keywords
antenna
antennas
diversity
increment
arriving
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
JP4321378A
Other languages
Japanese (ja)
Other versions
JPS5752738B2 (en
Inventor
Satoru Akeyama
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone 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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP4321378A priority Critical patent/JPS54136114A/en
Publication of JPS54136114A publication Critical patent/JPS54136114A/en
Publication of JPS5752738B2 publication Critical patent/JPS5752738B2/ja
Granted 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
    • 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
    • H04B7/0837—Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas using two or more spaced independent antennas at the receiving station using pre-detection combining
    • H04B7/0842—Weighted combining
    • H04B7/0848—Joint weighting
    • H04B7/0854—Joint weighting using error minimizing algorithms, e.g. minimum mean squared error [MMSE], "cross-correlation" or matrix inversion

Abstract

PURPOSE:To increase the diversity effect with no increment of the distance between antennas by dispersing or absorbing either one of the arriving direct wave and reflected wave via the constructed object provided between plural units of antennas. CONSTITUTION:Constructed object 8 provided between antenna 3 and 4 disperses or absorbs either one of direct wave 6 and reflected wave 7 arriving at antenna 3 and 4 to produce a difference to the receiving levels of both waves. Thus, the space correlation coefficient is reduced between antenna 3 and 4, then increasing the diversity effect with no increment of distance d between antennas.
JP4321378A 1978-04-14 1978-04-14 Antenna device for diversity Granted JPS54136114A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4321378A JPS54136114A (en) 1978-04-14 1978-04-14 Antenna device for diversity

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4321378A JPS54136114A (en) 1978-04-14 1978-04-14 Antenna device for diversity

Publications (2)

Publication Number Publication Date
JPS54136114A true JPS54136114A (en) 1979-10-23
JPS5752738B2 JPS5752738B2 (en) 1982-11-09

Family

ID=12657628

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4321378A Granted JPS54136114A (en) 1978-04-14 1978-04-14 Antenna device for diversity

Country Status (1)

Country Link
JP (1) JPS54136114A (en)

Also Published As

Publication number Publication date
JPS5752738B2 (en) 1982-11-09

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