JPS5717244A - Radio communication system - Google Patents

Radio communication system

Info

Publication number
JPS5717244A
JPS5717244A JP9054780A JP9054780A JPS5717244A JP S5717244 A JPS5717244 A JP S5717244A JP 9054780 A JP9054780 A JP 9054780A JP 9054780 A JP9054780 A JP 9054780A JP S5717244 A JPS5717244 A JP S5717244A
Authority
JP
Japan
Prior art keywords
receiver
primary
radiator
circulator
swing
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
JP9054780A
Other languages
Japanese (ja)
Other versions
JPS6253090B2 (en
Inventor
Isao Ogata
Tomiyuki Kume
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP9054780A priority Critical patent/JPS5717244A/en
Publication of JPS5717244A publication Critical patent/JPS5717244A/en
Publication of JPS6253090B2 publication Critical patent/JPS6253090B2/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
    • H04B7/10—Polarisation diversity; Directional diversity

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Radio Transmission System (AREA)

Abstract

PURPOSE:To form a communication system preventing fading, by providing primary radiators for right and left swing circular polarized waves with a pair of antennas and receiving electromagnetic waves of direct wave and inverted swing direction through reflection. CONSTITUTION:Primary radiators 11, 11' and 12, 12' for right and left swing circular polarized waves are provided to a pair of opposing antennas 10, 10'. The primary radiator 11 is connected to a transmitter TX and a receiver RX1 via a circulator 3 and the primary radiator 12 is connected to a receiver RX2. The other primary radiators 11', 12' are of the same constitution. For example, when the right swing circular polarized wave is radiated from the primary radiator 11 via the circulator 3 by the transmitter TX, direct wave is received at the primary radiator 11' and the receiver RX2', and reflected wave is reflected on a reflection region 5 via a reflection path 6, the direction of swing is inverted to be the left swing circular poralized waves, and they are received at the receiver RX1' via the radiator 12' and the circulator 3'. The output of the receivers RX1', 2' is synthesized at a synthesizer C. Thus, the system to prevent fading is formed.
JP9054780A 1980-07-04 1980-07-04 Radio communication system Granted JPS5717244A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9054780A JPS5717244A (en) 1980-07-04 1980-07-04 Radio communication system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9054780A JPS5717244A (en) 1980-07-04 1980-07-04 Radio communication system

Publications (2)

Publication Number Publication Date
JPS5717244A true JPS5717244A (en) 1982-01-28
JPS6253090B2 JPS6253090B2 (en) 1987-11-09

Family

ID=14001434

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9054780A Granted JPS5717244A (en) 1980-07-04 1980-07-04 Radio communication system

Country Status (1)

Country Link
JP (1) JPS5717244A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6160177U (en) * 1984-08-27 1986-04-23
JPS6224363U (en) * 1985-07-26 1987-02-14
JPH0451536A (en) * 1990-06-20 1992-02-20 Nippon Maikuronikusu:Kk Probe board for inspection of semiconductor product and manufacture of probe board
JPH0470746U (en) * 1990-10-30 1992-06-23

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6160177U (en) * 1984-08-27 1986-04-23
JPS6224363U (en) * 1985-07-26 1987-02-14
JPH0451536A (en) * 1990-06-20 1992-02-20 Nippon Maikuronikusu:Kk Probe board for inspection of semiconductor product and manufacture of probe board
JPH0470746U (en) * 1990-10-30 1992-06-23

Also Published As

Publication number Publication date
JPS6253090B2 (en) 1987-11-09

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