JPS55138904A - Antenna unit - Google Patents

Antenna unit

Info

Publication number
JPS55138904A
JPS55138904A JP4662479A JP4662479A JPS55138904A JP S55138904 A JPS55138904 A JP S55138904A JP 4662479 A JP4662479 A JP 4662479A JP 4662479 A JP4662479 A JP 4662479A JP S55138904 A JPS55138904 A JP S55138904A
Authority
JP
Japan
Prior art keywords
channel
small
antenna
tuner
receiving
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
JP4662479A
Other languages
Japanese (ja)
Inventor
Kazuaki Kawabata
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP4662479A priority Critical patent/JPS55138904A/en
Publication of JPS55138904A publication Critical patent/JPS55138904A/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
    • H01Q3/24—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 orientation by switching energy from one active radiating element to another, e.g. for beam switching

Landscapes

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

Abstract

PURPOSE:To make an antenna small-sized without deteriorating its receiving characteristics, by selecting an antenna corresponding to a channel selected from the receiving output of several small antennas, being interlocked with the channel selecter of a tuner. CONSTITUTION:The small antenna row 5 consists of small antennas 6, 7, 8 which are matched by the receiving frequency band of each channel or several channels of television broadcast. The receiving output of this small antenna row 5 is selected by being interlocked with the channel selector 2 of the tuner 1 by the changeover circuit 4, and it is input to the input terminal 3 of the tuner 1. Furthermore, the small antenna selected by the changeover circuit is matched as to its receiving frequency of the channel selected by the channel selector.
JP4662479A 1979-04-18 1979-04-18 Antenna unit Pending JPS55138904A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4662479A JPS55138904A (en) 1979-04-18 1979-04-18 Antenna unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4662479A JPS55138904A (en) 1979-04-18 1979-04-18 Antenna unit

Publications (1)

Publication Number Publication Date
JPS55138904A true JPS55138904A (en) 1980-10-30

Family

ID=12752437

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4662479A Pending JPS55138904A (en) 1979-04-18 1979-04-18 Antenna unit

Country Status (1)

Country Link
JP (1) JPS55138904A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0461939U (en) * 1990-10-03 1992-05-27
US6489843B1 (en) * 1995-09-29 2002-12-03 Matsushita Electric Industrial Co., Ltd. Power amplifier and communication unit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0461939U (en) * 1990-10-03 1992-05-27
US6489843B1 (en) * 1995-09-29 2002-12-03 Matsushita Electric Industrial Co., Ltd. Power amplifier and communication unit

Similar Documents

Publication Publication Date Title
JPS5260514A (en) Tuner
JPS55138904A (en) Antenna unit
JPS5689181A (en) Character multiplex broadcast receiving device
GB2015837A (en) Frequency synthesis control system
US2538497A (en) Antenna connector system
JPS56122535A (en) Antenna equipment
JPS5650618A (en) Channel selection device
JPS52126117A (en) Input tuning circuit
JPS5528640A (en) Channel selection circuit of television receiver
JPS5579538A (en) Tuner unit of television receiver
JPS5762638A (en) Wide band receiving tuner
JPS5762639A (en) Wide band receiving tuner
JPS5752218A (en) Receiving frequency display device of radio receiver
JPS5730424A (en) Broad band receiving circuit
JPS5761344A (en) Broad band electronic tuner
JPS5684074A (en) Antenna mixer
JPS56116322A (en) Receiver for am broadcast
JPS5765027A (en) Broad band reception tuner
JPS5678239A (en) Tuner
JPS5596709A (en) Television receiver
JPS568970A (en) Television signal receiver
JPS5546630A (en) Antenna change-over circuit
FR2240594A1 (en) Television or radio distribution system - uses single co-axial connection cable and single antenna
JPS533012A (en) Tuner unit
JPS5614730A (en) Receiver