JPH0348908U - - Google Patents
Info
- Publication number
- JPH0348908U JPH0348908U JP10858889U JP10858889U JPH0348908U JP H0348908 U JPH0348908 U JP H0348908U JP 10858889 U JP10858889 U JP 10858889U JP 10858889 U JP10858889 U JP 10858889U JP H0348908 U JPH0348908 U JP H0348908U
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- wavelength
- dielectric substrate
- ratio
- impedance matching
- 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
- 239000000758 substrate Substances 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 2
- 239000011888 foil Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Telephone Set Structure (AREA)
Description
第１図は本考案の小型アンテナの構成を示す正
面図、第２図は本考案の小型アンテナを無線機筐
体に内蔵した様子を示す略図、第３図、第４図は
インピーダンス整合の様子を示す回路図及びスミ
スチヤート、第５図、第６図及び第７図は本考案
の小型アンテナの送受信の感度を示す特性図であ
る。
１……誘電体基板、２……受信アンテナ、３…
…送信アンテナ、４，５，６，７……トリマコン
デンサ、８……接地導体、９……給電点、１０…
…小型アンテナ、１１……受信機、１２……送信
機、１３……無線機筐体。
Figure 1 is a front view showing the configuration of the small antenna of the present invention, Figure 2 is a schematic diagram showing how the small antenna of the present invention is built into the radio housing, and Figures 3 and 4 are impedance matching. The circuit diagram and Smith chart shown in FIGS. 5, 6, and 7 are characteristic diagrams showing the transmitting and receiving sensitivity of the small antenna of the present invention. 1... Dielectric substrate, 2... Receiving antenna, 3...
...Transmission antenna, 4, 5, 6, 7...Trimmer capacitor, 8...Grounding conductor, 9...Feeding point, 10...
...Small antenna, 11...Receiver, 12...Transmitter, 13...Radio device housing.
Claims (1)
１のアンテナと送信用の第２のアンテナを有し、
前記第１のアンテナおよび第２のアンテナはいず
れも長辺が波長の十分の一以下の方形微小ループ
アンテナであり、前記第１のアンテナと前記第２
のアンテナのループ面積の比が、受信波長と送信
波長の比にほぼ等しく設定されるとともに、イン
ピーダンス整合回路が前記誘電体基板上に形成さ
れていることを特徴とする小型アンテナ。 A first receiving antenna and a second transmitting antenna made of conductive foil are provided on a dielectric substrate,
Both the first antenna and the second antenna are rectangular minute loop antennas whose long sides are one tenth or less of the wavelength, and the first antenna and the second antenna are
A small antenna characterized in that a ratio of loop areas of the antenna is set approximately equal to a ratio of a reception wavelength to a transmission wavelength, and an impedance matching circuit is formed on the dielectric substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10858889U JPH0348908U (en) | 1989-09-19 | 1989-09-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10858889U JPH0348908U (en) | 1989-09-19 | 1989-09-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0348908U true JPH0348908U (en) | 1991-05-13 |
Family
ID=31657219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10858889U Pending JPH0348908U (en) | 1989-09-19 | 1989-09-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0348908U (en) |
-
1989
- 1989-09-19 JP JP10858889U patent/JPH0348908U/ja active Pending
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