JPS5769940A - Broad band antenna device for mobile communication - Google Patents

Broad band antenna device for mobile communication

Info

Publication number
JPS5769940A
JPS5769940A JP55147851A JP14785180A JPS5769940A JP S5769940 A JPS5769940 A JP S5769940A JP 55147851 A JP55147851 A JP 55147851A JP 14785180 A JP14785180 A JP 14785180A JP S5769940 A JPS5769940 A JP S5769940A
Authority
JP
Japan
Prior art keywords
antennas
narrow band
antenna
mobile communication
antenna device
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
JP55147851A
Other languages
Japanese (ja)
Inventor
Mitsuhiro Sato
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP55147851A priority Critical patent/JPS5769940A/en
Publication of JPS5769940A publication Critical patent/JPS5769940A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Transceivers (AREA)

Abstract

PURPOSE:To achieve a broad band antenna device for mobile communication which can correspond to frequency change in a short time, by combining a plurality of narrow band antennas and antenna synthesizers. CONSTITUTION:The 1st-4th narrow band antennas 1-4 are narrow band antennas with different frequency bands. An antenna synthesizer 5 provides an isolator at the inside and has a function to connect the antennas 1-4 with a radio set depending on frequencies. When they are used as transmission antennas, a high frequency signal is applied from a connecting terminal 6 and delivered to the antenna synthesizer 5, and radiation can be made from one of the 1st-4th narrow band antennas 1-4 depending on frequencies. Inversely, when they are used as reception antennas, electromagnetic waves are received with one of the 1st-4th narrow band antennas 1-4, and the reception signal is delivered to the antenna synthesizer 5. Next, this reception signal is supplied from the connecting terminal 6 to the radio set.
JP55147851A 1980-10-21 1980-10-21 Broad band antenna device for mobile communication Pending JPS5769940A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55147851A JPS5769940A (en) 1980-10-21 1980-10-21 Broad band antenna device for mobile communication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55147851A JPS5769940A (en) 1980-10-21 1980-10-21 Broad band antenna device for mobile communication

Publications (1)

Publication Number Publication Date
JPS5769940A true JPS5769940A (en) 1982-04-30

Family

ID=15439684

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55147851A Pending JPS5769940A (en) 1980-10-21 1980-10-21 Broad band antenna device for mobile communication

Country Status (1)

Country Link
JP (1) JPS5769940A (en)

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