JPS6439804A - Portable antenna - Google Patents
Portable antennaInfo
- Publication number
- JPS6439804A JPS6439804A JP19582787A JP19582787A JPS6439804A JP S6439804 A JPS6439804 A JP S6439804A JP 19582787 A JP19582787 A JP 19582787A JP 19582787 A JP19582787 A JP 19582787A JP S6439804 A JPS6439804 A JP S6439804A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- radiating element
- dielectric sheet
- radio wave
- conductive radio
- 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
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Waveguide Aerials (AREA)
Abstract
PURPOSE:To facilitate the conveyance, and to improve the radiation efficiency, by executing an operation in a state that a bag in the inside of a dielectric sheet has been filled with gas. CONSTITUTION:A microstrip line which has been bent in a shape of a crank is formed by a dielectric sheet 2, gas in the inside, a conductive radio wave radiating element 1 and a ground conductor 3, by filling the inside of a bag with gas from a gas injection port 6 of the dielectric sheet 2, and forming a space between a first face and a second face. When a signal is fed from a feeding part 4, while an electromagnetic wave is propagated to a terminal resistance 5, an electromagnetic wave is radiated from discontinuous parts a-d of a crank part of the conductive radio wave radiating element 1. In this case, since gas exists between the conductive radio wave radiating element 1 and the ground conductor 3, a specific inductive capacity is small. Also, at the time of conveying the titled antenna in a state that it is not used, it is carried by exhausting the gas from the gas injection port 6, bending and folding, or furling and making it small. In such a way, it can easily be carried, and also, the radiation efficiency is improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19582787A JPS6439804A (en) | 1987-08-05 | 1987-08-05 | Portable antenna |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19582787A JPS6439804A (en) | 1987-08-05 | 1987-08-05 | Portable antenna |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6439804A true JPS6439804A (en) | 1989-02-10 |
Family
ID=16347665
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19582787A Pending JPS6439804A (en) | 1987-08-05 | 1987-08-05 | Portable antenna |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6439804A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008519570A (en) * | 2004-11-02 | 2008-06-05 | センサーマティック・エレクトロニクス・コーポレーション | EAS / RFID tag antenna with detacher |
JP2008519530A (en) * | 2004-11-02 | 2008-06-05 | センサーマティック・エレクトロニクス・コーポレーション | EAS / RFID tag antenna with detacher |
JP2009118104A (en) * | 2007-11-06 | 2009-05-28 | Furuno Electric Co Ltd | Microstrip line antenna |
-
1987
- 1987-08-05 JP JP19582787A patent/JPS6439804A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008519570A (en) * | 2004-11-02 | 2008-06-05 | センサーマティック・エレクトロニクス・コーポレーション | EAS / RFID tag antenna with detacher |
JP2008519530A (en) * | 2004-11-02 | 2008-06-05 | センサーマティック・エレクトロニクス・コーポレーション | EAS / RFID tag antenna with detacher |
JP4819821B2 (en) * | 2004-11-02 | 2011-11-24 | センサーマティック・エレクトロニクス・コーポレーション | EAS / RFID tag antenna with detacher |
JP2009118104A (en) * | 2007-11-06 | 2009-05-28 | Furuno Electric Co Ltd | Microstrip line antenna |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
TW497292B (en) | Dual-band inverted-F antenna | |
US5184143A (en) | Low profile antenna | |
US6590539B2 (en) | Antenna device in radio communication terminal | |
US7233289B2 (en) | Multiple-frequency antenna structure | |
US3582951A (en) | Helmet antenna | |
CA2136920A1 (en) | Helical microstrip antenna with impedance taper | |
TW200505098A (en) | Multi-frequency slot antenna apparatus | |
CA2416437A1 (en) | Internal antennas for mobile communication devices | |
ES8501925A1 (en) | Coaxial dipole antenna with extended effective aperture. | |
EP0362079A3 (en) | Microstrip antenna | |
CA2334721A1 (en) | An antenna apparatus and a portable wireless communication apparatus | |
EP1432071A3 (en) | Compact and low-profile antenna device having wide range of resonance frequencies | |
EP0716469A4 (en) | Antenna device and portable radio device | |
DE3567322D1 (en) | Dual-frequency microwave antenna | |
JP2003188637A (en) | Plane multiplex antenna and portable terminal | |
CA2331367A1 (en) | Broad band patch antenna | |
GB1388230A (en) | Frequency extension of circularly polarized antenna | |
Lin et al. | Surface-mount dual-loop antenna for 2.4/5 GHz WLAN operation | |
Hwang et al. | Printed compact dual band antenna for 2.4 and 5 GHz ISM band applications | |
JPS6439804A (en) | Portable antenna | |
US9793609B2 (en) | Surface-mount multi-band antenna | |
CN107768825B (en) | Cross circular polarization groove antenna | |
TW202036986A (en) | Dual-band antenna | |
US6114999A (en) | Field controlled resonator | |
JPS62122304A (en) | Printed dipole antenna |