JPS5610708A - Receiving device - Google Patents

Receiving device

Info

Publication number
JPS5610708A
JPS5610708A JP8678679A JP8678679A JPS5610708A JP S5610708 A JPS5610708 A JP S5610708A JP 8678679 A JP8678679 A JP 8678679A JP 8678679 A JP8678679 A JP 8678679A JP S5610708 A JPS5610708 A JP S5610708A
Authority
JP
Japan
Prior art keywords
control
antenna device
switching means
directivity
same time
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
JP8678679A
Other languages
Japanese (ja)
Inventor
Joji Kane
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP8678679A priority Critical patent/JPS5610708A/en
Publication of JPS5610708A publication Critical patent/JPS5610708A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q3/00—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system
    • H01Q3/44—Arrangements for changing or varying the orientation or the shape of the directional pattern of the waves radiated from an antenna or antenna system varying the electric or magnetic characteristics of reflecting, refracting, or diffracting devices associated with the radiating element

Landscapes

  • Circuits Of Receivers In General (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

PURPOSE:To always ensure an automatic reception in the optimum direction by giving the electrical control to the directivity of the antenna device consisting of the dipole antennas. CONSTITUTION:The control signal gives the control to each variable reactance of folded and abbreviated dipole antennas 31-36 possessing the distribution constant inductance. These control signals are applied from control means 40 via switching means 42. At the same time, antennas 31 and 34 also functioning as the radiators are connected to compounding unit 37 via switching means 43. The receiver connected to the antenna device formed in such way detects the extent of the multipath effect contained in the intermediate frequency signal. And the control is given to switching means 42 and 43 in order to secure the minimum extent of this effect. Thus the directivity can be controlled for the antenna device. In such way, an automatic reception is always possible in the optimum direction, at the same time attaining the miniaturization of the antenna device.
JP8678679A 1979-07-09 1979-07-09 Receiving device Pending JPS5610708A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8678679A JPS5610708A (en) 1979-07-09 1979-07-09 Receiving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8678679A JPS5610708A (en) 1979-07-09 1979-07-09 Receiving device

Publications (1)

Publication Number Publication Date
JPS5610708A true JPS5610708A (en) 1981-02-03

Family

ID=13896430

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8678679A Pending JPS5610708A (en) 1979-07-09 1979-07-09 Receiving device

Country Status (1)

Country Link
JP (1) JPS5610708A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6944433B2 (en) 2000-04-07 2005-09-13 Nec Corporation Portable telephone apparatus that can attain directivity of antenna which optimizes reception state from base station

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6944433B2 (en) 2000-04-07 2005-09-13 Nec Corporation Portable telephone apparatus that can attain directivity of antenna which optimizes reception state from base station

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