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JPS57202104A - Antenna device - Google Patents

Antenna device

Info

Publication number
JPS57202104A
JPS57202104A JP8648581A JP8648581A JPS57202104A JP S57202104 A JPS57202104 A JP S57202104A JP 8648581 A JP8648581 A JP 8648581A JP 8648581 A JP8648581 A JP 8648581A JP S57202104 A JPS57202104 A JP S57202104A
Authority
JP
Japan
Prior art keywords
dielectric constant
antenna conductor
board
notches
loss due
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
JP8648581A
Other languages
Japanese (ja)
Inventor
Kazutaka Hidaka
Kenji Suehiro
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 JP8648581A priority Critical patent/JPS57202104A/en
Publication of JPS57202104A publication Critical patent/JPS57202104A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support

Landscapes

  • Support Of Aerials (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

PURPOSE:To lower a loss due to a dielectric constant with small size, by cutting off an unused part of a printed circuit board along an antenna conductor formed on the printed board. CONSTITUTION:An antenna device 10b is constituted with an antenna conductor 2, lead conductors 3-6, an amplifying circuit mounting circuit pattern 7, a variable capacitor VC, resistors R1-R3, capacitors C1-C5, coils L1 and L2, a transistor TR, a transformer T, and a choke coil RFC1 for amplifier components on a printed circuit board 1a. The 1st-the 7th notches 11-17 are formed on an unused part of the board 1a along an antenna conductor 2. Through the notches 11-17, the dielectric constant of the part is equal to that of air, and the loss due to the dielectric constant is small negligibly.
JP8648581A 1981-06-05 1981-06-05 Antenna device Pending JPS57202104A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8648581A JPS57202104A (en) 1981-06-05 1981-06-05 Antenna device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8648581A JPS57202104A (en) 1981-06-05 1981-06-05 Antenna device

Publications (1)

Publication Number Publication Date
JPS57202104A true JPS57202104A (en) 1982-12-10

Family

ID=13888274

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8648581A Pending JPS57202104A (en) 1981-06-05 1981-06-05 Antenna device

Country Status (1)

Country Link
JP (1) JPS57202104A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007104495A (en) * 2005-10-06 2007-04-19 Hitachi Cable Ltd Antenna module, wireless device, and portable wireless terminal
US8716603B2 (en) 2010-11-24 2014-05-06 Nokia Corporation Printed wiring board with dielectric material sections having different dissipation factors

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007104495A (en) * 2005-10-06 2007-04-19 Hitachi Cable Ltd Antenna module, wireless device, and portable wireless terminal
US8716603B2 (en) 2010-11-24 2014-05-06 Nokia Corporation Printed wiring board with dielectric material sections having different dissipation factors

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