JPS5610708A - Receiving device - Google Patents
Receiving deviceInfo
- 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
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.
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)
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 |
-
1979
- 1979-07-09 JP JP8678679A patent/JPS5610708A/en active Pending
Cited By (1)
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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