GB2006578A - Diversity Radio Receivers - Google Patents

Diversity Radio Receivers

Info

Publication number
GB2006578A
GB2006578A GB7840901A GB7840901A GB2006578A GB 2006578 A GB2006578 A GB 2006578A GB 7840901 A GB7840901 A GB 7840901A GB 7840901 A GB7840901 A GB 7840901A GB 2006578 A GB2006578 A GB 2006578A
Authority
GB
United Kingdom
Prior art keywords
antennae
radio receivers
composite signal
diversity radio
signals
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
GB7840901A
Other versions
GB2006578B (en
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.)
UK Secretary of State for Defence
Original Assignee
UK Secretary of State for Defence
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 UK Secretary of State for Defence filed Critical UK Secretary of State for Defence
Priority to GB7840901A priority Critical patent/GB2006578B/en
Publication of GB2006578A publication Critical patent/GB2006578A/en
Application granted granted Critical
Publication of GB2006578B publication Critical patent/GB2006578B/en
Expired 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
    • H04B7/0802—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 antenna selection
    • H04B7/0822—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 antenna selection according to predefined selection scheme

Abstract

A plurality of antennae (1, 2, 3, 4) are relatively positioned so that fast fading of the signals to which the antennae are sensitive is poorly correlated, commutation means (5) being connected to the antennae to derive a composite signal consisting of signals from each of the antennae in turn consecutively, a filter (11) being connected to receive the composite signal or a signal derived from the composite signal to remove any frequency components produced by the commutation means (5). <IMAGE>
GB7840901A 1977-10-17 1978-10-17 Radio receivers employing diversity reception Expired GB2006578B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB7840901A GB2006578B (en) 1977-10-17 1978-10-17 Radio receivers employing diversity reception

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB4313477 1977-10-17
GB7840901A GB2006578B (en) 1977-10-17 1978-10-17 Radio receivers employing diversity reception

Publications (2)

Publication Number Publication Date
GB2006578A true GB2006578A (en) 1979-05-02
GB2006578B GB2006578B (en) 1982-03-31

Family

ID=26265055

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7840901A Expired GB2006578B (en) 1977-10-17 1978-10-17 Radio receivers employing diversity reception

Country Status (1)

Country Link
GB (1) GB2006578B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3324959A1 (en) * 1983-07-11 1985-01-31 Sennheiser Electronic Kg, 3002 Wedemark Receiving circuit for a space diversity method
EP0279080A2 (en) * 1987-02-16 1988-08-24 Mitsubishi Denki Kabushiki Kaisha Radio data transmission system
WO1989006074A1 (en) * 1987-12-21 1989-06-29 Richard Hirschmann Gmbh & Co. Process and circuit arrangement for reversing frequency-modulated high-frequency signals
EP0714178A1 (en) * 1994-11-23 1996-05-29 FUBA Automotive GmbH Multi-antenna scanning diversity-system for vehicles
DE4204490B4 (en) * 1992-02-14 2004-04-15 Heinz Prof. Dr.-Ing. Lindenmeier Circuit arrangement for suppressing switching interference in antenna diversity

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3324959A1 (en) * 1983-07-11 1985-01-31 Sennheiser Electronic Kg, 3002 Wedemark Receiving circuit for a space diversity method
EP0279080A2 (en) * 1987-02-16 1988-08-24 Mitsubishi Denki Kabushiki Kaisha Radio data transmission system
EP0279080A3 (en) * 1987-02-16 1989-10-25 Mitsubishi Denki Kabushiki Kaisha Radio data transmission system
WO1989006074A1 (en) * 1987-12-21 1989-06-29 Richard Hirschmann Gmbh & Co. Process and circuit arrangement for reversing frequency-modulated high-frequency signals
EP0324208A1 (en) * 1987-12-21 1989-07-19 Richard Hirschmann GmbH &amp; Co. Method and circuit for switching between frequency-modulated high-frequency signals
DE4204490B4 (en) * 1992-02-14 2004-04-15 Heinz Prof. Dr.-Ing. Lindenmeier Circuit arrangement for suppressing switching interference in antenna diversity
EP0714178A1 (en) * 1994-11-23 1996-05-29 FUBA Automotive GmbH Multi-antenna scanning diversity-system for vehicles

Also Published As

Publication number Publication date
GB2006578B (en) 1982-03-31

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee